| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 137409000 | By float controlled valve | 87 |
| 20080236676 | Fuel feed apparatus - A fuel feed apparatus includes a sub-tank that is received in the fuel tank, a fuel pump received in the sub-tank and pumps up and pressurizes fuel in the sub-tank for supplying the fuel to the outside of the fuel tank, a jet pump disposed to supply fuel in the fuel tank into the sub-tank, and a recirculation passage defined in the sub-tank and communicating between the inside and the outside of the sub-tank. The jet pump includes a suction port to communicate between the inside and the outside of the sub-tank and a jet nozzle that jets fuel toward the suction port, so as to generate suction power by which fuel in the fuel tank is suctioned from the first suction port into the sub-tank. Moreover, the recirculation passage that opens at a lower edge thereof close to the upstream side of the suction port of the jet pump and opens at an upper edge thereof below the upper edge of a sidewall of the sub-tank. | 10-02-2008 |
| 20080251134 | Fuel cutoff valve - The fuel cutoff valve has a first valve mechanism inside a first valve chamber of a casing. In the first valve mechanism, a seat member installs on the upper part of a first float. The seat member has a seat portion which seats in a first seal part facing a first connection conduit; and a valve support portion projected from the lower face of the seat portion in the direction of up and down movement of the first float. The valve support portion is formed so as to be in contact against the upper end of a bottom support portion of a lower cover when the first float is in the down position. With a simple configuration, the fuel cutoff valve affords reduction of impact noise associated with vibration of the float. | 10-16-2008 |
| 20090084449 | FLOAT VALVE DEVICE - Provided is a float valve device that closes an opening portion by pushing a movable valve by means of a protruding portion formed on an upper portion of a float, in which a problem of a crack and the like of the movable valve can be solved without thickening the movable valve or increasing the movable valve in size. A space in a housing is defined into a lower space and an upper space through an intermediation of a partition wall, and an opening portion is provided in the partition wall. A float is housed in the lower space of the housing so as to be vertically slidable, and to an upper portion of the float, a movable valve is mounted so as to be movable relatively to the float in a vertical direction and a lateral direction. A protruding portion is provided on the upper portion of the float, and a receiving portion on which the protruding portion abuts is provided on a lower surface of the movable valve. A center hole is provided in a center of the receiving portion. When the float comes up, a peripheral portion of a top portion of the protruding portion of the float is adapted to abut on an inner circumference periphery of the center hole. | 04-02-2009 |
| 20090165869 | Valve for the venting circuit of a liquid tank - Valve for the venting circuit of a liquid tank, said valve comprising: a) a main chamber ( | 07-02-2009 |
| 20090178719 | FLOAT VALVE DEVICE - Provided is a float valve device which allows a valve to be quickly opened when, in a state in which a float has been raised as a result of a rise in fuel liquid level to close the valve, the fuel liquid level is lowered again. The float valve device includes a housing, a float accommodated in the housing, a movable valve adapted to abut a valve seat to close an opening, and a retention frame to retain the movable valve so as to allow the movable valve to ascend/descend by a predetermined distance and to incline with respect to the float. Further, a circumferentially uneven protrusion is formed on a portion where the retention frame and the movable valve abut each other. When the float is lowered in a valve-closed state, the protrusion first abuts the movable valve to impart a lowering force thereto. | 07-16-2009 |
| 20090199910 | Robust water level control valve - Disclosed herein are water control devices having a normally closed valve preventing water flow upon breakage of an outer mechanism having a float weight, that float weight overcoming the resistance of the valve under conditions of non-contact with water, that submerged float weight reducing in apparent weight as seen by the valve actuator. A float weight may be made from a material with about the same density as water, or with heavier materials with voids or pockets having an overall density of water or a substantial density greater than that of air. A control mechanism may be provided that moves independently of the valve, providing for decoupling of the float weight from the valve if the float weight is forced out of position. Detailed information on various example embodiments of the inventions are provided in the Detailed Description below, and the inventions are defined by the appended claims. | 08-13-2009 |
| 20090235991 | DETERGENT RELEASING DEVICE FOR WATER TANK - A detergent releasing device for toilet water tank includes a case connected to inside of the water tank and a releasing unit is connected with the case. The releasing unit includes a guide member with a hollow central tube in which an operation rod is movably inserted. The central tube includes two slots located close to two ends thereof. The operation rod includes an annular space in which a fixed amount of detergent is stored via one of the slots. The operation rod is connected with a float member which moves the operation rod up and down within the central tube. The fixed amount of detergent released when flushing. | 09-24-2009 |
| 20090293962 | Fuel cutoff valve - A fuel cutoff valve is furnished with a casing defining a valve chamber, and a float mechanism housed to be able to rise and fall in the valve chamber. The casing is furnished with a closure plate situated in the space above the valve chamber and in a facing arrangement with a connecting passage. The closure plate is furnished with a vent hole that has been formed so as to divert the passage from the connecting passage to a second pipe line, and with a barrier wall that is situated in opposition to a first pipe line and that has been formed so as to divert the passage from the first pipe line to the second pipe line. | 12-03-2009 |
| 20100089466 | VALVE DEVICE FOR FUEL TANK - A valve body and a float body are combined by respectively coupling two or more coupling parts provided on one of the valve body and the float body to coupled parts provided on the other of the valve body and the flat body in a state allowing upward and downward movements of the valve body. During descent of the float body, one coupling part of the two or more coupling parts is caught on the coupled parts ahead of the other coupling parts whereby the valve body is tilted, and the other coupling parts restrict the tilting of the valve body. | 04-15-2010 |
| 20100139784 | FLOAT-CONTROLLED WATER INFLOW SWITCHING DEVICE FOR WATER PUMP - A float-controlled water inflow switching device is provided for use with a water pump for pressurizing tap water and functions to safely collect and re-use of water drainage from the pump and associated piping for pressure relief purposes. The switching device includes a container arranged in water supply piping of the pump and forming a water return port connected to a water return pipe from the pump. The container includes a float arranged therein to selectively close/open a tap water supply port and has a water outlet port connected to the water in-feed end of the pump to directly supply tap water to the pump or to alternatively supply water contained in the container to the pump by means of automatic switching realized by closing the tap water supply port by the movement of the float at the time when the water inside the container reaches a preset water level. | 06-10-2010 |
| 20100200082 | LIQUID LEVEL MONITOR INCLUDING ELECTROMECHANICAL FLOAT SWITCH HAVING REDUCED LIQUID MIGRATION INTO THE SWITCH - A liquid level monitor ( | 08-12-2010 |
| 20100212756 | WATER SAVER FILL VALVE AND ASSEMBLY - An improved fill valve has a pivot valve body that is pivotally suspended immediately below a float housing and is movable between two positions. In a first position, the pivot valve body blocks the flow of water from the float housing. In a second position, the pivot body allows the flow of water from the float housing. The pivot valve body has two top compartments, each separated from the other by a wall. The first compartment retains an amount of water in it. The second compartment functions as a water flow restriction apparatus and includes an upwardly-extending member for sealing off a check valve that is disposed within the bottom of the float housing. The fill valve also includes a pressure compensating drip emitter that allows water to trickle into the float housing at a very slow rate. | 08-26-2010 |
| 20100252125 | AXIALLY ADJUSTABLE FILL LIMITER VENT VALVE - A fill limiter vent valve (FLVV) adapted for suspension downward into a fuel tank has upper and lower housing members having openings in their cylindrical walls cooperating to define a spill-over level for fuel into the FLVV producing float-initiated vent valve closure during a fuel fill event. The lower housing member has a latching member fixedly engageable with one or more cooperating latching features of the upper housing member in a plurality of relative axial positions; and the spill-over level is varied by relative axial movement of the housing members between those positions. Axial alignment of the latching member and the cooperating latching features is maintained by axially aligned, interacting surface features of the housing members. | 10-07-2010 |
| 20110005614 | VENT VALVE - A vent valve assembly at least partially disposed within an interior of a fuel tank is provided. The vent valve assembly comprises a housing, a first venting orifice, a float configured to close the first venting orifice when the level of fuel in the housing reaches a predetermined level, a second venting orifice, and a stop configured to close the second venting orifice to facilitate a pressure differential between the housing and the fuel tank. | 01-13-2011 |
| 20110146811 | AIR RELEASE VALVE - The air release valve | 06-23-2011 |
| 20110186149 | FILL-UP CONTROL VALVE DEVICE - A casing has a vessel portion, in which a float valve unit is arranged. A fuel drain through-hole having a small diameter is formed at a closed end bottom of the vessel portion. A cross sectional area of the fuel drain through-hole is extremely smaller than an opening area of an inlet port, so that fuel discharging speed of the liquid fuel from the vessel portion through the fuel drain through-hole is suppressed to a small value. As a result, a fuel holding time of the liquid fuel in the vessel portion, which has entered into the vessel portion from the inlet port, is made longer. | 08-04-2011 |
| 20110197976 | STANDPIPE DIRECT FLOAT VALVE - A standpipe float valve having a standpipe housing having an inlet port and an outlet port, a valve plug deployed within the standpipe housing, the valve plug configured to regulate a flow of fluid into the standpipe housing and a float element deployed within the standpipe housing and reactive to a fluid level in the standpipe housing, the float element attached to the valve plug and configured to actuate the valve plug, wherein the standpipe housing has a substantially cylindrical interior volume, the valve plug has a substantially cylindrical outer face and an outside diameter of the valve plug is substantially equal to an inside diameter of the cylindrical interior volume of the standpipe housing such that the valve plug is slidingly displaceable within the standpipe housing between an open position, in which fluid flows through the inlet port into the standpipe housing and a closed position in which fluid flow through the inlet valve is blocked. | 08-18-2011 |
| 20110209778 | in Valves - This invention relates to a valve comprising a housing having first and second apertures for the ingress and egress of fluid into/from a passageway located within the housing extending indirectly from the first to the second aperture. The passageway forms an air-lock. The valve further comprises at least one bleed valve for allowing fluid out of the passageway at a rate slower than fluid is able to enter one of the apertures. A liquid entering one of the apertures is prohibited from passing along the passageway to the other of the apertures until substantially all air within the valve has bled out of the bleed valve. | 09-01-2011 |
| 20110297250 | OPENING/CLOSING DEVICE - An opening/closing device includes a gate that receives a flow of a sewage, and can fall toward a downstream side of the flow, a fall prevention unit that prevents the gate from falling by supporting the gate, a support release unit that releases the support for the gate by the fall prevention unit, a first float that is arranged on the upstream side of the gate, and is smaller in specific gravity than the sewage, a surfacing prevention unit that prevents the first float from surfacing, a second float that is arranged on the upstream side of the gate, above the first float, and is smaller in specific gravity than the fluid, and a surfacing-prevention release unit that releases, resulting from surfacing of the second float, the prevention of the surfacing of the first float by the surfacing prevention unit. Further, the support release unit is activated resulting from surfacing of the first float. | 12-08-2011 |
| 20110315240 | Ventilation valve - The invention refers to a ventilation valve for the fuel tank of a motor vehicle with a housing ( | 12-29-2011 |
| 20110315241 | FUEL CUTOFF VALVES - A fuel cutoff valve has a housing defining therein a float chamber and a float disposed in the float chamber. The housing defines a connection passage positioned above the float chamber and fluidly connecting the float chamber with outside of the housing and a hole positioned below the fluid chamber fluidly connecting the float chamber with outside of the housing. The float has a valve part that is configured to close the connection passage and defines therein a first passage passing through the float in a vertical direction and a second passage extending from a part of the first passage to an outer surface of the float in a substantial horizontal direction. | 12-29-2011 |
| 20120012197 | VALVE FOR CONTROLLING AMOUNT OF WATER IN RIM-SIDE SUPPLY PIPE OF FILL VALVE IN WATER TOILET - A valve for controlling the amount of water in a rim-side supply pipe of a fill valve in a water toilet. The valve includes a fill valve for permitting and stopping supply of washing water from a hydrant into a water tank. A fixing section fixes the fill valve to an overflow pipe. A float has a packing for opening or closing an opening/closing hole of the fill valve depending on a level of water contained in the water tank. A water amount control valve controls the amount of washing water which is supplied to the rim-side supply pipe of the fill valve. The amount of washing water, which is supplied toward a rim of the toilet, is controlled by the opened area of the rim-side supply pipe of the fill valve. | 01-19-2012 |
| 20120024400 | Valve Assembly - A valve assembly ( | 02-02-2012 |
| 20120132295 | SEWAGE EFFLUENT DISTRIBUTION MEANS - A septic system can include an improved and more reliable apparatus for distributing effluent uniformly to a plurality of portions or fingers of a drain field. In such apparatus, an effluent container, or collection tank, is connected with the outlet of a septic tank, and an effluent-operated valve controls effluent flow from an outlet of the effluent container, or collection tank, to an effluent distribution tank which is connected to a plurality of portions, or fingers, of a sewage drain field to uniformly distribute the effluent from the septic tank to the drain field. | 05-31-2012 |
| 20120138168 | NONRETURN VALVE FOR AN EXHAUST LINE - In a nonreturn valve having a tubular body, which can be installed in a vertical section of an exhaust line, a valve seat, formed within the tubular body, for at least one float, and at least one circumferential groove, which is open in the downstream direction, the intention is to make available a solution by means of which it is possible to provide a nonreturn valve that is simple, advantageous in terms of production engineering and has a particularly high performance, and to do so in a way which is simple in terms of design and is economical. This is achieved by virtue of the fact that the circumferential rim of the at least one float projects radially over the radially inner circumferential wall section and has an axial lip facing upstream, which extends into the circumferential groove in the axial direction when the at least one float is resting on the valve seat. | 06-07-2012 |
| 20120291883 | FLUID LEVEL CONTROL MECHANISM - A fluid level control mechanism comprising a reservoir assembly, a flow line assembly, and a resilient force assembly. The flow line assembly has a main flow line capable of passing a fluid, a diverter flow line, and a diverter valve. The diverter valve is connected to a lower end plate of the reservoir assembly via a lever arm, such that the reservoir assembly is capable of sliding along the length of the main flow line in response to a fluid level. Downward movement of the reservoir assembly opens the diverter valve and upward movement of the reservoir assembly closes the diverter valve. The resilient force assembly is attached to the main flow line and the reservoir assembly and is capable of exerting a vertical force against the reservoir assembly to close the diverter valve. | 11-22-2012 |
| 20120312393 | Universal Flush Valve Actuator - A flush valve actuator comprising a float, a linking arm and a flush valve seat disc that can be attached to and used with a toilet flush valve that is already installed. Also disclosed is a universal flush valve actuator kit comprising at least one float, at least one flush valve seat disc, and a plurality of linking arms that are variously attachable to differently configured toilet flush valves. | 12-13-2012 |
| 20120318382 | LEAK DETECTION ON FLUSH VALVE - A device for detecting leaks and shutting off a water inlet into a main toilet flushing cistern in which the water inlet is controlled by a main valve which is closed by an operating lever, said main valve supplying the main cistern via a filling column, a float contained in a float compartment pivoting the operating lever when the main cistern is full. The float compartment is closed in its bottom part and over its entire lateral periphery so that the water contained in said float compartment can be expelled only by causing it to pass over at least one of the side walls thereof, and in that said device comprises an actuating mechanism for emptying said float compartment. The mechanism is configured to bring about the lowering of the float into said float compartment so as to cause the opening of the water inlet. | 12-20-2012 |
| 20130000751 | VERTICAL FLOAT VALVE ASSEMBLY - A vertical float valve for use in a fluid reservoir. The vertical float valve able to open and closed based upon the level of fluid within the fluid reservoir. The vertical float valve having a body portion. The body portion attached to a float portion via a four bar (4-bar) linkage. | 01-03-2013 |
| 20130019962 | Float valve - A float valve comprising a shut-off lever and a float lever is disclosed. The shut-off lever is supported for pivotal movement about a first axis between a first closed position and a second open position. The float lever is supported for pivotal movement about a second axis between a first closed position and a second open position. The float lever and the shut-off lever include cams which cooperate to transmit closing forces and opening forces between the levers. The valve exhibits a snap closing action whereby seeping is prevented over a substantial range of liquid levels. | 01-24-2013 |
| 20130019963 | FUEL CUT-OFF VALVE ASSEMBLIES - A fuel cut-off valve assembly may include a housing disposed within a fuel tank and defining therein a float chamber communicating with a space defined in the fuel tank. The housing has a fuel vapor outlet hole, so that fuel vapor can flow from within the float chamber to a fuel vapor processing device. A float valve may be received within the float chamber so as to be vertically movable for opening and closing the fuel vapor outlet hole in response to change in a level of fuel within the fuel tank. The float valve may have a valve body and a buoyancy center positioned at a level higher than a central position of the valve body with respect to the height of the valve body. | 01-24-2013 |
| 20130074953 | Water inlet device for a water tank - The invention relates to the structure of a water inlet device of a water tank, wherein a float seat is slipped outside an external water-lifting pipe, an internal water-lifting pipe is installed inside the external water lifting pipe, a control valve is fixedly connected on the upper end of the external water-lifting pipe, a valve set is set inside the control valve, the valve set includes a membrane, a positioning plate, a silencing washer, a water feeding plate and a water supply pipe. The shock and vibration caused by inflowing water current may be buffered by using the construction of the valve set, to thereby enhance the silence effect and achieve the purpose of reducing noise. | 03-28-2013 |
| 20130087220 | SPECIFIC GRAVITY VALVE - A specific gravity valve, has a floating valve member with a specific gravity that is less than the specific gravity of a first liquid and greater than the specific gravity of a second, heavier liquid. A valve seat is associated with the floating valve member. A valve member retainer retains the floating valve member and permits limited vertical movement of the floating valve member between an open position away from the valve seat and a closed position engaged with the valve seat, such that in the open position, fluid flow through the respective outlet is permitted, and in the closed position, fluid flow through the respective outlet is prevented. The specific gravity valve may be used with a production tank to prevent an unintended draw off of the wrong fluid component in the tank. | 04-11-2013 |
| 20130092254 | AIR RELEASE VENT VALVE - An air release vent valve having a valve body with an inlet port and a venting orifice; a direct float configured with an axial passageway; and a displaceable orifice closure rod deployed in at least a portion of the axial passageway, the displaceable orifice closure rod being longitudinally displaceable therein, wherein at least of portion of the displaceable orifice closure rod extends above the direct float and at least a portion of the displaceable orifice closure rod is configured to close the venting orifice when the water level in the valve body reaches a predetermined level. Also disclosed is a suspended surge prevention element that is suspended within the valve body at an adjustable distance from the venting orifice and configured to seal the initial vent orifice in response to a velocity of the flow of air through the valve body. | 04-18-2013 |
| 20130092255 | GAS VENT VALVE - A gas vent valve has a valve body having a first end, a second end, and a sidewall having a generally constant inner diameter from the first end to a normal operating liquid level. A spacer is positioned within the valve body and has an aperture formed therethrough. A control float is positioned within the valve body and has an outer diameter that is smaller than the inner diameter of the valve body and larger than the inner diameter of the spacer. A top float is positioned within the valve body, above the control float, and has an outer diameter that is smaller than the inner diameter of the spacer. A side port can extend from the sidewall and be positioned below the spacer and generally adjacent the top float with the valve in the open condition. | 04-18-2013 |
| 20130118608 | SYSTEM AND METHOD FOR TRAPPING AND NEUTRALIZING CONDENSATE IN A CONDENSING GAS APPLIANCE - A drain system is configured to collect condensate from flue gas generated by a condensing fuel-fired appliance. The drain system includes a drain body defining an inlet positioned to receive condensate in the drain body, a drain opening positioned to deliver condensate from the drain body, a passage extending between the inlet and the drain opening, and a seat surface disposed within the passage. A float moves within the passage of the drain body at a location between the inlet of the drain body and the seat surface of the drain body. The float moves to a position contacting the seat surface defined by the drain body to block the flow of flue gas through the passage of the drain body when there is little or no condensate in the passage. A neutralizing agent is positioned along the passage of the drain body for contact with condensate in the passage. | 05-16-2013 |
| 20130126016 | OIL PAN INNER TANK VALVE STRUCTURE - In an oil pan inner tank valve structure, a disc-shaped float valve is arranged below a valve port that provides fluid communication between the inside and outside of a bottom wall of an inner tank, and a lower cover is arranged below the float valve. In addition, a center recess is depressed at a lower surface center of the float valve, and a lateral movement restricting pin is upright from the lower cover and is constantly engaged with the center recess by recess/protrusion engagement. The lower cover restricts a vertically movable range of the float valve. In addition, the lateral movement restricting pin restricts lateral movement of the float valve so that a top portion of an upper surface bulged portion vertically constantly faces an area inside a valve seat. | 05-23-2013 |
| 20130160871 | VARIABLE ORIENTATION FLUID LEVEL SENSOR WITH OPTIONAL SLOSH GUARD - A fluid level sensor assembly comprises a sensor mounted to a sensor housing. A carrier extends from the sensor housing in an angled orientation. A float is located within the carrier such that the float may move along a longitudinal axis of the carrier. A fragment is secured to the float, and the sensor detects a location of the fragment as the float moves within the carrier. | 06-27-2013 |
| 20130192693 | TRANSMISSION SEALING AND DRAINAGE DEVICE - A sealing and drainage device for a motor vehicle transmission is located in a wall approximately near the bottom of the transmission housing and includes a ball and a plate that encloses the ball in a bore through the housing wall. The plate has an opening on which the ball sits under normal operating conditions. During unexpected flooding conditions, water flows through the opening into the bore. The ball floats on the water such that as the water rises in the bore, the ball rises as well to the top of the bore to seal the bore from the interior of the housing, preventing water from flowing into the housing. | 08-01-2013 |
| 20130192694 | STRUCTURAL IMPROVEMENT OF A WATER DRAINER IN A CISTERN - A structural improvement of a water drainer in a cistern is disclosed. The water drainer has a draining part which has a moving module inside. The moving module has a central hole, in addition, has an upper float-ball and a lower float-ball at inner space to match the upper slot and the lower slot which both are set up on the draining part. Furthermore, an outer convex ring set on a rubber module is fixed into the draining hole on the bottom of the cistern, and an outer convex ring on the cylinder at the lower portion of the draining part is inserted into the hole of the rubber module, meanwhile the latch of the cylinder is hooked onto the bottom of the rubber module to make the water drainer be fixed. With the structural improvement, a purpose of two-stage water draining can be achieved. | 08-01-2013 |
| 20140026984 | DILUTION APPARATUS - A dilution apparatus includes a container having an adjustable float-operated make-up valve on the top of the container wherein the make-up valve has an inlet end connected to a water supply tube and an outlet end connected to a fill tube disposed inside the container. The make-up valve is connected to a float disposed in a liquid inside the container. The water supply tube is operatively connected by tubing to a reservoir that contains a concentrate. The water flow through the water supply tube siphons the concentrate through the tube, into the water stream and through the make-up valve to form a first dilution inside the container. A proportioner having a first inlet opening connected to a water supply and a second inlet opening connected to a tube on one end and the other end is connected to the bottom of the container. The water flow through the proportioner siphons the first dilution from the container through the tube and into the proportioner, thereby mixing the first dilution with the water from the water supply to form a final product having a predetermined dilution ratio. | 01-30-2014 |
| 20140048157 | Water Supply Delaying Structure of Inlet Valve - Disclosed is a water supply delaying structure installed on an inlet valve body of an inlet valve, including an external buoy, a delay buoy, and internal and external screws. The external buoy includes an upwardly-open chamber, open slots formed on a sidewall of the external buoy, an opening formed at the bottom of the chamber, a check valve loosely installed at the bottom of the opening; an end of the internal screw is adjustably coupled to the external buoy, and the other end of the internal screw is rotably fixed onto the inlet valve body; the delay buoy is floatably installed in the chamber of the external buoy, and an end of the external screw is adjustably coupled to the delay buoy, and the other end of the external screw is rotably coupled to a swing rod of the inlet valve body. | 02-20-2014 |
| 20140060670 | Ventilating and evacuating valve for conduit pipes and/or braces - The present invention relates to a ventilating and evacuating valve for fluid-guiding conduit pipes and/or braces, comprising a valve mechanism ( | 03-06-2014 |
| 20140083524 | FLOAT SWITCH OF A HUMIDIFIER - A float switch of a humidifier at least includes a main body, a water tank and a float switch. The main body has a base located at a bottom and provided with a water tank groove and a water basin having a projected portion formed at a bottom. The water tank possesses a water outlet with plural ribs to engage with a float, a circumferential wall used to combine with a protective hood of the float switch, and a space formed between the water outlet and the circumferential wall for containing the float. The float switch is set between the water tank and the water basin, used to automatically fill water in the water basin by means of the float. When the water tank is separated from the main body, a compressing end of a pressing plate is to push up the float enabling a water stopper to seal the water outlet to prevent water form leaking outside. | 03-27-2014 |
| 20140109993 | Gully arrangement - A gully arrangement comprises a housing ( | 04-24-2014 |
| 20150068617 | VALVE AND FUEL TANK STRUCTURE - A valve includes: a float that is provided within a fuel tank and that, by floating in fuel, blocks a communication hole that communicates with an engine, a housing that accommodates the float within the fuel tank such that the float can move vertically, and into and from which fuel, that is within the fuel tank, enters and exits, and a dam member that is provided at the float, and that locally narrows a gap between the float and the housing. | 03-12-2015 |
| 20150090350 | WATER TANK WITH A LIMITING ASSEMBLY - A water tank has a container, a micro switch, a limiting assembly and a float. The float is mounted slidably in the container. The limiting assembly has an actuating rod that slides in a direction perpendicular to the sliding path of the float. An inclined guiding track is mounted between the float and the actuating rod to convert the moving direction. Since the actuating rod utilizes the movement to switch the micro switch on and off, the actuating rod and the micro switch need no abutting structures. Therefore, when the actuating rod is moved by an accidental force, the actuating rod self-moves back to its original position once the accidental force is removed. Then the micro switch is switched on again so that the household appliance is restarted without any extra acts by a user. | 04-02-2015 |
| 20160137055 | FUEL TANK SYSTEM - A valve member is provided to a vent pipe for communicating a fuel tank with a canister. A solenoid valve is provided to a canister side bypass passage between a back pressure chamber of the valve member and the canister side vent pipe. An extending member is provided to restrict the valve lift amount in accordance with the internal pressure of the fuel tank. | 05-19-2016 |
| 137410000 | Valve opened by external means, closing or closing control by float | 1 |
| 20110067765 | SELF SEALING DRAIN FITTING - Disclosed is a drain assembly including a buoyant spherical ball ( | 03-24-2011 |
| 137412000 | Servo relay operation of control | 3 |
| 137413000 | Fluid pressure | 3 |
| 137414000 | Flexible diaphragm valve | 3 |
| 20100132812 | TOILET CISTERN INLET VALVE - A toilet cistern inlet valve, said inlet valve including an inlet stem connected to a water supply, a canister surrounding said inlet stem, a float canister freely supported on said canister, an annular float adjustably positioned on said float canister, an upper valve body, a pilot diaphragm valve, and a diaphragm filling valve within the upper body whereby during the emptying of the cistern the float canister lowers and contacts an actuator button to contact the pilot diaphragm valve to open the diaphragm filling valve to refill the toilet cistern. | 06-03-2010 |
| 20140261774 | NEEDLE FILL VALVE - A needle fill valve, in which a bearer is set on the top of a body, the bearer is covered on an upper cover, a front cavity is set on the front side of the bearer, an inner cavity is set on the location corresponding to the front cavity for placing the annular gasket of the sealing plate wrapped a sealing valve pad, and the purpose of fixing the sealing valve pad for preventing being disengaged from the annular gasket is achieved by fastening an upper fixed seat and a lower fixed seat. | 09-18-2014 |
| 20160069056 | HYDRAULIC VALVE AND TOILET LEAK SAFETY CATCH - An elongated catch device pivotally mounted intermediately to an inlet pipe device and carrying at its upper extremity a keeper selectively disposed in the path of a float device to, unless a toilet has been flushed, block lowering of the float device and consequent opening of the control valve. | 03-10-2016 |
| 137423000 | Plural floats | 5 |
| 20090126804 | DEVICE FOR CONTROLLING WATER LEVEL - Disclosed herein is a water level controlling device for intercepting the supply of water to the water reservoir of a water purification system. The water level controlling device includes a water reservoir having a plurality of diaphragms which are provided on the lower surface of the water reservoir in such a way as to move up and down. A flow body is mounted to the lower surface of the water reservoir and defines a water circulation path, with a plurality of control parts provided in the circulation path to block the flow of water by the corresponding diaphragms. A plurality of floaters moves up and down in the water reservoir according to the water level. An actuating means moves each of the diaphragms to the corresponding control part as each of the floaters rises, thus intercepting the flow of water passing through the control part. | 05-21-2009 |
| 20110017320 | Fuel Cutoff valve - A fuel cutoff valve includes a first float mechanism housed in a first valve chamber of a casing, and a second float mechanism housed in a second valve chamber. During fueling operations, when an intake opening becomes blocked by fuel, the second float mechanism closes second vent holes, and the first float mechanism closes a connecting passage. At times other than fueling operations, when the intake opening becomes blocked by fuel, because the fuel tank interior and the first and second valve chambers, communicate through the second vent holes in addition to the first vent holes, differential pressure between tank internal pressure and pressure of the valve chambers does not rise to the point of actuating the closing operation of the first float mechanism, and the fuel tank FT does not become sealed. | 01-27-2011 |
| 20110030814 | SEQUENCER ASSEMBLY, SYSTEM AND METHOD - This invention pertains to a sequencer for controlling the distribution of fluid input into a tank to at least two outlets using a plurality of cells connected to actuate a respective floating outlet. Each of the cells has a relatively uniform construction comprising an enclosure and a float. Each enclosure has an inlet arranged at one end to allow fluid therein and offset openings at an opposite end. The enclosure also is configured to accept the float in an inner cavity and arranged so as to allow the fluid therein to cause said float to move within said enclosure. Each cell is further arranged in pairs of a lift cell and a trigger cell adapted to actuate a floating outlet. Each float has an inclined upper surface configured to transfer a ball through the offset openings as the fluid causes the float to rise and fall from each cycle of actuate a respective floating outlet. The sequencer being particularly adapted to a system and method for dosing a septic system having two or more disposal fields. | 02-10-2011 |
| 20140352811 | VALVE ASSEMBLY - A valve assembly (I) for controlling the supply of water to a reservoir. The assembly (I) has a main body ( | 12-04-2014 |
| 20160138236 | IRRIGATION NETWORK VALVE - Irrigation valves for channels and for irrigation tanks are of three types. All are activated by a pair of tilting float arms to which a pair of floats are attached. One type is a T-shaped duct with a cylindrical valve disposed at 90 degrees to the part that is connected to the incoming flow. The floats rotate the valve. The second type has the same construction as the first type, thereby giving flow control but additionally has a rise and fall gate in the duct part that is connected to the incoming flow. The gate acts as a stop valve. The third type has a cylindrical duct connectable to the incoming flow but no valve and provides both flow control and stop valve facilities through a rise and fall gate actuated by the tilting of the float arms. | 05-19-2016 |
| 137424000 | With counter-balance | 1 |
| 20150107698 | LOW PROFILE OVERBALANCED BACKWATER VALVE - A backwater valve has a hollow valve body with an inlet defined by a vertical surface, an outlet, and a bottom. A pivoting valve member is pivotally movable about a pivot axis between a normally open position along the bottom of the valve body and a closed, vertical position sealing the inlet. The valve member has a hinge end, the pivot axis being positioned at the hinge end. An overbalancing member carried by the valve member biases the float toward the closed position. The overbalancing member comprises at least one of a counterweight and a magnetic element. The overbalancing member is positioned at the hinge end and spaced from the pivot axis such that the overbalancing member is vertically above the pivot axis when the valve member is in the open position and horizontally over from the pivot axis when the valve member is in the closed position. | 04-23-2015 |
| 137426000 | Level adjustment or selection means | 3 |
| 20090120511 | STANDPIPE DIRECT FLOAT VALVE - The standpipe direct float valve of the present invention is configured such that the valve plug is directly connected to the float element and both the valve plug and the float element are deployed within the standpipe housing. The standpipe housing has an inlet port and at least one outlet port. The valve plug is configured to regulate the fluid level, commonly referred to in the art as head, in the standpipe housing by controlling the flow of fluid through the inlet port and into the standpipe housing. The valve plug is deployed within the standpipe housing and is directly connected to, and actuated by, a float element that is deployed within the standpipe housing and reactive to the fluid level in the standpipe housing. Preferably, the valve plug and the float element are integrally formed. So configure, the standpipe float valve of the present invention provides a method for maintaining a substantially constant flow pressure through an outlet port of a standpipe float valve having a standpipe housing configured with an inlet port and an outlet port. This is accomplished by maintaining a substantially constant fluid level into the standpipe housing by displacement of the float element in response to the fluid level in the standpipe housing so as to actuate the valve plug between an open position, in which fluid flows through the inlet port into the standpipe housing and a closed position in which fluid flow through the inlet port is blocked. A full range of fluid flow through the inlet port and into the standpipe housing is possible due to the fill range of movement of the valve plug between filly closed and fully open is possible. | 05-14-2009 |
| 20090199911 | TOILET FILL VALVE LOCK AND METHOD - Various embodiments of a toilet fill valve lock and method for adjusting the fill water level in a toilet are provided. In one embodiment a toilet fill valve includes a riser that extends along an axis and an inner shaft that is disposed along the axis between the axis and the riser. The toilet fill valve further includes a lock that is moveable toward and away from the axis and which can limit the movement of the riser relative to the inner shaft about the axis when in a locked position. | 08-13-2009 |
| 20100071784 | Pilot switch - A pilot valve is switchable between snap and throttle modes. The pilot valve supplies output gas to a process control valve and has an adjustable biasing member for applying an adjustable force to a pilot plug in a pilot body interior. An opposed force is applied to the pilot plug to overcome the adjustable force and the output gas. | 03-25-2010 |
| 137428000 | In separate communicating float chamber | 1 |
| 20120152375 | FUEL TANK WITH INTERNAL FUEL SHUT-OFF SYSTEM - A gas fuel tank with an internal emission fuel system includes a fill-and-vent valve system inside the fuel tank that controls fuel vapor through an exterior carbon canister and prevents spit back. This inventive system prevents exposure of the carbon canister to liquid or fuel. The fill valve assembly has a nylon wedge float that causes the fuel fill nozzle to shut off once the liquid level seals the valve opening. The vent valve assembly also has a nylon wedge float that shuts off vapor once the liquid level seals the valve opening. | 06-21-2012 |
| 137429000 | Rectilinearly traveling float | 12 |
| 20080202600 | Tank Refuelling System - The present invention relates generally to a fluid level control system comprising a level sensor ( | 08-28-2008 |
| 20100071785 | Fuel cutoff valve - The fuel cutoff valve has a casing that defines a casing body having a valve chamber and a communicating chamber that connects the valve chamber to the outside; and a float mechanism that is housed within the valve chamber and adapted to open and close a connecting passage through rise and fall in accordance with the fuel level inside the fuel tank. The casing has projecting out respectively from its side part a first pipe that connects to the communicating chamber as well as connecting to the outside via a tube, and a second pipe that connects the communicating chamber to another valve via a tube. The first pipe and the second pipe are situated in a mutually parallel arrangement in the vertical direction. | 03-25-2010 |
| 20140209190 | FUEL TANK VALVE - A fuel tank valve having: a housing that is arranged in a fuel tank and has a communication port communicating with an outside of the fuel tank; and a float valve body that is installed in the housing and closes the communication port when fuel in the housing increases, where a wall part of the housing has an opening part through which the fuel flows in and out, and a projecting part that is formed to correspond to the opening part and projects outwardly from the wall part, and the projecting part is separated above from the opening part by a predetermined distance, is provided. | 07-31-2014 |
| 20140366962 | DISPOSABLE INTRAVENOUS FLOW CONTROL DEVICE - A disposable intravenous flow control device ( | 12-18-2014 |
| 20160091107 | FUEL CUTOFF VALVE - A fuel cutoff valve includes: a casing main body having a valve chamber and a connecting hole to connect the valve chamber to the exterior of the fuel tank; a cover which has a pipe passageway which communicates with the exterior and which is connected to the connecting hole; a bottom member which has an induction chamber which has an opening portion through which liquid fuel and fuel vapor are allowed to flow and a distribution hole which communicates with the valve chamber; and a float configured to ascend and descend according to a fuel level in the fuel tank to close and open the connecting hole, wherein the bottom member has a guiding plate in the induction chamber, the guiding plate being formed into a shape of a recess portion which is oriented towards the opening portion in an axial section. | 03-31-2016 |
| 137430000 | Float co-axial with valve or port | 7 |
| 20100065134 | Fuel shutoff valve - A fuel shutoff valve includes a valve chamber, a casing, a float, and a shock absorber. The casing includes a body, a cylinder, and a seal. The float is accommodated in the valve chamber. The shock absorber includes a seat attaching to and detaching from the seal of the casing. The shock absorber includes a first arm, a second arm, a contact, and a locker. The first arm protrudes outward from the seat of the shock absorber diametrically, and exhibits elasticity. The second arm exhibits elasticity. The contact is disposed at the leading end of the second arm, and comes in contact with the float. The locker is disposed at a diametrically-outer-side leading end of the first arm, and locks to the body of the casing when the shock absorber is positioned at the lowermost level in the valve chamber. | 03-18-2010 |
| 20110290344 | Large bore auto-fill float equipment - An auto-fill type float collar assembly is provided. The float collar assembly of the present invention has at least one curved flapper-style valve, preferably constructed of composite, non-metallic material. Each flapper of the present invention has a substantially 90° range of motion, and is closed via a torsion spring. Each flapper is held in the open (or “auto-fill”), position via an external shifting mechanism passing around, rather than through, the central flow bore of the assembly. A floatable actuation ball can be run with the tool, or pumped downhole, in order to selectively actuate the assembly and close the flappers when desired. | 12-01-2011 |
| 20130276912 | FUEL CUTOFF VALVE - A fuel cutoff valve is equipped with a casing main body having a valve chamber that forms a connection hole that is an opening to the valve chamber side on an upper wall, a cover that forms a pipe which forms a pipe passage, and a float housed inside the valve chamber. The cover is equipped with a pipe extended part which is provided extending inside the linking chamber from the pipe in a tube shape facing the connection hole and on an substantially straight line, the pipe extended part has an extended passage | 10-24-2013 |
| 20140366963 | FUEL SUPPLY DEVICE - Provided is a fuel supply device that is able to achieve downsizing of a fuel pump in a configuration in which part of a fuel to be sent outside by driving of the fuel pump is able to be returned to an accommodation portion not provided with the fuel pump. A jet pump is provided in a vapor discharge pipe that is able to return a fuel from a fuel-pump main body to a second fuel receiving area. A sectional area of a passage of the vapor discharge pipe is changeable by a float valve. | 12-18-2014 |
| 20160069470 | HYDRAULIC VALVE - In one aspect, the device includes a control apparatus including a pilot valve projecting through a passage in a control diaphragm to be formed with an enlarged poppet to seat the underside of the diaphragm and formed with a poppet head shaped to direct incoming flow away from the pilot passage to minimize entry of residue. | 03-10-2016 |
| 137433000 | Float rigid with valve | 2 |
| 20150068618 | VALVE ASSEMBLY - A valve is provided. A body of the valve is configured to receive a supply of fluid. The body includes an inlet. A chamber is defined within the body. A seat member is disposed within the chamber. The seat member includes apertures defining a fluid flow path from the inlet into the chamber. A plunger is disposed through the body and in fluid communication with the chamber. The plunger includes a tubular wall defining a conduit therethrough. A float is attached to a distal end of the plunger. The plunger and the float are configured to move relative to the body and the seat member between an open position and a closed position. The apertures in the seat member are positioned radially outward of the tubular wall of the plunger. | 03-12-2015 |
| 20150068619 | DEVICE AND METHOD FOR PREVENTING THE OVERFLOW OF A FLUID RESERVOIR - A device for preventing the overflow of a fluid reservoir, having a first tubular body with a hole through the interior and exterior surfaces at one end, a second tubular body disposed within the first body such that a portion of the interior surface of the first body and the exterior surface of the second body define an air channel, and a floatation device. The position of the tubular bodies relative to one another determine whether air from a fluid reservoir may exit the reservoir via the hole in the end of the first body. The flotation device is connected to an end of the second body and floats in the fluid reservoir wherein movement of the second body relative to the first body is caused by a change in the water level, such that the air channel is opened or closed by the position of the floatation device. | 03-12-2015 |
| 137434000 | Float arm operated valve | 13 |
| 20090151796 | Fluid Level Control Toggle Valve Device and Method - A water level control device has connected tubular housings, one serving as a support for a hose connection and the other serving to support a valve housing assembly for operation of a toggle valve within the valve housing. An airtight float serves to raise the one extreme of a float rod when buoyed by sufficient water level admitted through apertures in the valve housing. The other extreme of the float rod is attached to a rod holder to hold the float rod. The rod holder passes through an outlet apertured valve seat wherein a valve washer attached to the rod holder within the toggle valve cavity is urged against the outlet valve seat by water pressure from a water hose. When the water level in a pool or spa, and thus the float, is lowered, the one extreme of the float rod will also be lowered lowering the other extreme of the float rod and the attached rod holder to cause the attached valve washer to tilt away from the valve seat and permit water from the hose to enter the pool. A water flooded water keel attached to the float serves to hold a threaded float connector attached to the float rod for vertical adjustment, the water keel also serves to resist float rotation due to surface waves or wind playing on the float. In the preferred embodiments, the float is configured in the shape of a natural aquatic object (e.g., duck, frog, dolphin, lotus blossom, etc.), a natural or unnatural object or the like. The valve washer has free movement within the valve cavity such that siphoning from the pool to the water supply is eliminated when the freely positioned valve washer is seated against the valve inlet pressure reducer thus stopping siphoning action. The inlet pipe supplying make-up water to the pool enters the pool above or below water level. The device is provided for easy placement in a pool by suspension of the float and attached valve housing from an outrigger water supply assembly resting on a pool deck adjacent to the pool. Zinc ballast weights are positioned within the outrigger and water supply for stopping metal erosion and plaster discoloration due to electrolysis. | 06-18-2009 |
| 20110203681 | PILOT FILL VALVE - A pilot fill valve includes a float that is separated into upper and lower cavities by an angled partition through which a drain outlet and an overflow outlet are disposed. When the level of the float drops, a portion of the water supplied to the fill valve is diverted to a tank to raise the float, while the remainder is diverted to the upper cavity increasing the weight of the float. As the float begins to rise, the water in the upper cavity drains through the drain outlet and overflow outlet, making the float lighter, and causing the float and pivot arm to rotate with increased velocity, allowing the pilot cap carried by the pivot arm to fully shut off the valve. | 08-25-2011 |
| 20130068321 | WATER SAVER FILL VALVE AND ASSEMBLY - An improved fill valve has a pivot valve body that is pivotally suspended immediately below a float housing and is movable between two positions. In a first position, the pivot valve body blocks the flow of water from the float housing. In a second position, the pivot body allows the flow of water from the float housing. The pivot valve body has two top compartments, each separated from the other by a wall. The first compartment retains an amount of water in it. The second compartment functions as a water flow restriction apparatus and includes an upwardly-extending member for sealing off a check valve that is disposed within the bottom of the float housing. A pressure compensating drip emitter allows water to trickle into the float housing at a very slow rate. The emitter comprises a labyrinth structure having a plurality of serpentine pathways formed in its outer surface. | 03-21-2013 |
| 20160138761 | A Floating Ball Filling-control Device for Cryogenic tank - Disclosed herein is a floating ball filling-control device for a cryogenic tank with enhanced structural stability. The floating ball filling-control device comprises a liquid feeding pipe ( | 05-19-2016 |
| 20160168834 | DEVICE FOR CONTROLLING THE FILLING OF A CISTERN | 06-16-2016 |
| 137435000 | With valve retarder or cushion means | 1 |
| 20130228238 | TOILET INLET VALVE AND CONTROL METHOD THEREOF - A toilet inlet valve and control method thereof, the inlet valve comprises a valve body, an inlet pipe, a water stop device with a water stop rubber gasket, a float bowl device, a raising rod device and an outlet pipe, wherein, the water stop device also comprises a water stop seat, a tray, a needle valve and a back pressure cavity; the water stop seat is located at the front end of the outlet pipe, and of which the opening is coupling with the end face of the water stop rubber gasket; the tray is connected to the water stop rubber gasket, and is located at the side of the water stop seat that is opposite to the water stop rubber gasket; the needle valve is fixed to the tray, and is located at the side of the water stop rubber gasket that is opposite to the tray. | 09-05-2013 |
| 137438000 | Movable nozzle or inlet terminal | 1 |
| 20150034177 | FLOAT VALVE - There is provided a float valve. The float valve includes: a frame; a water supply part fixed to the frame and including a water supply nozzle through which water is discharged; a vertical bar fixedly coupled to the frame and extending downwardly below the water supply unit; a float connected to the vertical bar and vertically movable along the vertical bar; a switching unit connected to the float and configured to open or close the water supply nozzle while being moved vertically according to vertical movement of the float; and a water level sensor disposed on the vertical bar to detect a position of the float. Since the water level senor is integrated in the float valve, the inside space of a product using the float valve may be efficiently used, and parts of the product may be simply assembled. | 02-05-2015 |
| 137441000 | With refill pipe | 1 |
| 20110214754 | BALL VALVE TOILET BOWL VALVE FILL SYSTEMS - A ball valve toilet bowl fill valve as a replacement for existing diaphragm-type shut-off valve assemblies for use with existing toilet systems is disclosed herein comprising: a valve body having a ball valve; a float and rod mechanism; a water inlet which allows water to enter to provide a water level in a toilet tank; a toilet fill; and a flange. The float and rod mechanism is buoyancy adjustable according to the water level present in the toilet tank such that the float and rod mechanism manipulates the ball valve within the valve body to control at least one water flow through the toilet fill. The ball valve toilet bowl fill valve is preferably sealably secured to the toilet tank via the flange in conjunction with a seal creating a substantially leak-free effective and efficient service for flush tank toilets. A kit and method of use/installation for the ball valve toilet bowl fill valve system is also disclosed suitable for replacing a diaphragm-type shut-off valve in a flush toilet. | 09-08-2011 |
| 137442000 | Assembly mounted on and having reciprocating valve element coaxial with inlet pipe | 1 |
| 137444000 | Vertical inlet riser | 1 |
| 20090301574 | MECHANISM FOR CONTROLLING A GAUGE FOR INDICATING THE AMOUNT OF GAS REMAINING IN A GAS TANK - An overfill prevention device which includes a first tubular member, a cylindrical piston fitted within the first tubular member, a second tubular member having a cylindrical recess open, a plug arranged within the second tubular member, a float rod having a cam plate, a float connected with a lower end of the float rod, a valve body having a lower end engaged with the first tubular member, a pinion pivotally connected to the second tubular member by the pin, a toothed rack meshed with the pinion and engaged with the second tubular member, a control rod having an upper end extending into the valve body and a lower end secured to the toothed rack, a first magnet mounted at the upper end of the control rod, and a gauge mounted on the valve body and provided with a second permanent magnet and a needle operatively connected with the second magnet. | 12-10-2009 |
| 137446000 | With interposed cam, gear or threaded connection | 1 |
| 20110226351 | BALANCED WATER-INTAKE CONTROL VALVE - Disclosed is a balanced water-intake control valve, comprising an adjusting mechanism of water-level between two linkage rods. The adjusting mechanism includes a first pivot guide, a second pivot guide, a lead screw and an adjusting nut. The first pivot guide is pivoted at the first linkage rod for driving a valve rod. The second pivot guide is pivoted at the second linkage rod connecting to a float body. The first and second pivot guides are connected by the lead screw at opposite ends. At the middle of the lead screw, an adjusting nut is placed. By rotating the lead screw, the length between the first and second pivot guides can change. Therefore, the water-level upper limit can be adjusted by the user's demand after installing of the control valve. | 09-22-2011 |
| 137447000 | Rotary valve element | 1 |
| 20100229964 | SERVICE VALVE ASSEMBLY HAVING A STOP-FILL DEVICE AND REMOTE LIQUID LEVEL INDICATOR - A system for determining a fluid level in a pressurizable container comprising is disclosed. The system includes a service valve having a set of wrench flats defining parallel flat surfaces, one of the wrench flats having a recess defined entirely within its flat surface, a stop-fill device interconnected with the service valve and operable to rotate a first magnet inside the service valve in proximity to the recess in proportion to the amount of fluid in the pressurizable container, and a dial assembly having a dial face and a pointer attached to a second magnet, the second magnet housed in a magnet protrusion on a side of the dial face opposite the pointer and operable to fit into the recess in the service valve such that the dial moves on the dial face proportionately to the degree of rotation of the first magnet inside the service valve. In one variation, a sensor placed in the recess or adjacent a throat of the service valve is electrically connected to a remotely located gauge for displaying a reading corresponding to the level of fluid in the container. | 09-16-2010 |
| 137448000 | Pivoted valve | 2 |
| 20140144524 | BACKWATER VALVE WITH CONTROL LINKAGE - A backwater valve has a valve body, and a valve member pivotally movable about a pivot axis between an open position away from the valve body and a closed position covering the valve body. A control linkage is provided with at least one of a float or a counterweight in communication with the valve member via the control linkage to modify operation of the valve member. | 05-29-2014 |
| 20140332096 | SHUT-OFF DEVICE FOR PIPE - A shut-off device for a pipe in a pipeline for operation in response to ingress of water, has a valve for installation in a pipe of the pipeline. The valve has a valve member moving between an open position, when the valve is open, to permit passage of fluid through the pipe, and a closed position, when the valve is closed, to shut off a passage extending through the pipe. A buoyant member associated with the valve member moves the valve member to the closed position automatically in the presence of ingress water in the vicinity of the buoyant member. | 11-13-2014 |
