| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 251331000 | Diaphragm | 72 |
| 20080224081 | Valve Assembly - The present invention has an object to improve the flow property so as to increase the gas flow amount, to inhibit the gas from staying within a valve chamber, and to enhance the gas-replacement property such as evacuation performance and purge performance. | 09-18-2008 |
| 20080224082 | Valves | 09-18-2008 |
| 20080290311 | Diaphragm with Segmented Insert - A flush valve diaphragm of a flush valve includes a body having a segmented insert within a flexible body portion and a central passageway. The body further includes a peripheral sealing portion with the flexible body portion within the peripheral sealing portion. The peripheral sealing portion can include an integral filter, an exit chamber and a bypass arrangement, such that water flowing through the filter flows through the bypass arrangement. The integral filter version will retard clogging of the bypass arrangement. The segmented insert includes a plurality of trapezoidal members with outward protrusions. The plurality of trapezoidal members are connected to each other on their outermost edge by a runner. | 11-27-2008 |
| 20090020721 | Valve for Vacuum Exhaustion System - The invention provides a valve and a method of operating the valve that makes it possible to reduce the diameter of the vacuum exhaustion pipings to make the facility for the vacuum exhaustion system small, which results in lower costs and shortens vacuum exhaustion time, and also which can prevent corrosion, cloggings, and seal leakages inside the piping system caused by the accumulation of substances produced by the decomposition of gas flowing through the pipings. In particular, in accordance with the present invention, an aluminum passivation is applied on the piping parts, i.e. the valve and others, that are used in the vacuum exhaustion system so as to inhibit gas decomposition caused by temperature rise at the time of baking so that components for reduction in the diameter size in the vacuum exhaustion system are provided. Thus, corrosion, cloggings and seat leakages caused by gas decomposition are prevented. | 01-22-2009 |
| 20090020722 | Fluid Control Valve - For providing a fluid control valve capable of preventing looseness of a screw part between a valve main body and a valve upper body, the fluid control valve comprises a resin valve main body wherein a valve seat comes into or out of contact with a diaphragm, and a resin valve upper body engaged with the valve main body. The fluid control valve comprises a holding member to keep the valve main body and the valve upper body threadedly screwed together. | 01-22-2009 |
| 20090020723 | Manual valve - A manual valve comprises a valve element, a rod connected to the valve element, and a knob for moving the rod by screw feeding in an opening/closing direction with respect to the valve element. The valve element is moved by rotation of the knob through the rod. The rod includes an external thread portion on an outer periphery thereof and is not connected to the knob and is held against rotation. Further, the manual valve includes a cylindrical sliding nut rotatably held by a body and formed with an internal thread portion to be engaged with the external thread portion of the rod on its inner periphery and a clip fixed to the knob to be elastically deformably engaged with the sliding nut but disengaged when a larger torque than the predetermined value is applied. | 01-22-2009 |
| 20090095935 | Irrigation valve - The present invention relates to a diaphragm valve, comprising: a valve body with an internal cavity and an inlet passage forming a continuous path of constant cross-section and minimal direction changes, allowing for less turbulent flow within the valve. The invention further comprises a valve cap mounted to a top of the valve body to cover the internal cavity, the valve cap comprising a solenoid port and a plurality of supporting ribs forming a continuous, channeled path allowing for reliable communication between the metering pin, the top of the diaphragm, and the solenoid port. | 04-16-2009 |
| 20090114873 | DIAPHRAGM FOR USE WITH CONTROL VALVES - A diaphragm for use with a valve includes a body having a central portion including an outer central portion and offset by an angled portion from an outer portion. The central portion is to be disposed at a position adjacent a valve seat and displaced into engagement with the valve seat to affect fluid flow. The body deforms substantially at the outer central portion and angled portion during displacement of the central portion by the valve and reacts substantially unilaterally to prevent vibration of the diaphragm during fluid flow past the valve seat. | 05-07-2009 |
| 20090140196 | FLUID PRESSURE DEVICE AND MANUFACTURING METHOD FOR FLUID PRESSURE DEVICE - A manufacturing method for a fluid pressure device and a fluid pressure device are provided, in which joints are diffusion bonded to a valve body. In the fluid pressure device, the joints are inserted into an inlet port and an outlet port formed in the valve body, and heating is performed to generate a temperature difference between the valve body and the joints, whereupon by diffusion bonding of the joints into a wall of the valve body in which the inlet port and the outlet port are formed, both members are bonded. | 06-04-2009 |
| 20090146095 | Drainable radial diaphragm valve - A drainable radial diaphragm valve includes a valve body that defines a valve cavity, and an inlet passage and an outlet passage. The valve body may include a valve seat at an end of the inlet passage, where the inlet passage joins and creates a flow path into the valve cavity, and a port at an end of the outlet passage, where the outlet passage joins and creates a flow path from the valve cavity. A surface of the valve body may slope from the valve seat downward to the port of the outlet passage. A flexible diaphragm including the protruding boss may be mounted with the boss aligned with the valve seat to contact and seal the valve seat, and close the flow path from the inlet passage into the valve cavity when the diaphragm is flexed to axially displace the boss toward the valve seat. | 06-11-2009 |
| 20090206293 | Flow Controller with Channel Having Deformable Wall - An apparatus and method for controlling the flow of fluid though a channel. A first substrate defines features comprising a first channel. At least a portion of the first channel is bounded a deformable material having a first contour in which the first channel has a first cross-sectional area and a second contour in which the first channel has a second cross-sectional area. | 08-20-2009 |
| 20090256100 | Vacuum valve device for bag - A vacuum valve device is used with a bag and has a base and a clip. The base has a tube, a clipping flange and a valve. The tube mounted through a sheet of the bag and has a central hole and at least one outlet hole. The clipping flange is formed on the tube. The valve is mounted slidably in the tube and selectively seal the at least one outlet hole. The clip is mounted detachably around the tube of the base and cooperates with the clipping flange to hermetically clip the sheet of the bag. The vacuum valve device may be reused, is economical and marketable. | 10-15-2009 |
| 20100001223 | VALVE WITH A SPRINGY DIAPHRAGM - A diaphragm membrane ( | 01-07-2010 |
| 20100059702 | LUER ACTIVATED MEDICAL CONNECTOR HAVING A LOW PRIMING VOLUME - A connector is described which includes a valve housing comprising a valve housing base and a valve cap, the valve housing defining an inlet port, and an outlet port, the valve housing further including a fluid path from the inlet port to the outlet port, the fluid path including a channel formed in an inner wall of the valve housing. A valve insert in the valve housing defines a bowl sealed by a diaphragm, such that the sealed bowl forms an inner volume in the valve housing. A valve plug operable seals the inlet port when the connector is in an unactuated state thereby closing the fluid path through the connector. Upon actuation of the connector the valve plug deforms the diaphragm into the inner volume thereby unsealing the inlet port and opening the fluid path through the connector. Because of the arrangement of the valve plug, valve insert and diaphragm, the connector has a low priming volume and has positive fluid displacement characteristics upon actuation. | 03-11-2010 |
| 20100078584 | VALVE DEVICE - The present invention relates to a valve device ( | 04-01-2010 |
| 20100090151 | DIRECT TOUCH TYPE METAL DIAPHRAGM VALVE - A direct touch type metal diaphragm valve, wherein durability of the valve, that is to say, the ensured number of continuous open/close operations of the valve, is substantially increased under conditions that an appropriate flow rate coefficient Cv is maintained, and changes of the afore-mentioned Cv value over time are mitigated by means of restricting the deformation of the valve seat over time. The afore-mentioned metal diaphragm is formed in a round, reverse-dish shape by laminating a plural number of thin stainless steel plates and a thin Nickel.Cobalt alloy plate, and its center part is bulged upward, and the maximum valve stroke of the valve is regulated to be 55% to 70% of the distance of the maximum bulge height Δh of the afore-mentioned metal diaphragm. | 04-15-2010 |
| 20100140524 | Aseptic Flow Control Valve With Outside Diameter Valve Closure - An aseptic diaphragm valve in which a valve seat ( | 06-10-2010 |
| 20100207048 | SUCK BACK VALVE SYSTEM AND VALVE-CLOSING-OPERATION CONTROL METHOD FOR THE SAME - There is provided a suck back valve system in which problems in the suck back function are resolved. In a suck back system including an integral-type suck back valve in which an on/off valve that performs opening and closing operations by a first pneumatic actuator has a suck back function of preventing liquid dripping by means of a diaphragm that moves with the closing operation and a protective on/off valve provided at the upstream side adjacent to the integral-type suck back valve as a measure against malfunction in the integral-type suck back valve and performing opening and closing operations by a second pneumatic actuator, an opening and closing control unit is provided that, during the fully closing operation of the integral-type suck back valve, completes the fully closing operation of the protective on/off valve earlier than full closing of the integral-type suck back valve. | 08-19-2010 |
| 20100237270 | EXPANSION VALVE - An expansion valve for reducing the quantity of material required for the valve body by contriving the arrangement of bolt fitting grooves. In the expansion valve ( | 09-23-2010 |
| 20100294971 | VALVE DIAPHRAGM - A valve component ( | 11-25-2010 |
| 20100320410 | Diaphragm-actuated fluid control valve - Provided is a diaphragm-actuated fluid control valve capable of, even in a region where the pressure difference between the pressures on the upper surface side and the lower surface side of a diaphragm is small, significantly changing the amount of lift of the diaphragm relative to the change in the pressure difference, without reducing the thickness of the diaphragm, and thus is capable of providing a predetermined flow rate and performing stable flow rate control. The control valve has a diaphragm | 12-23-2010 |
| 20110006239 | PREASSEMBLED VALVE ASSEMBLY FOR USE IN A TURBOCHARGER - A valve assembly disposable in a turbocharger housing includes a cover; a sealing body connected to the cover so as to form a pressure space between the cover and the sealing body; a restoring spring disposed in the pressure space and disposed against the cover and the sealing body, wherein the sealing body is moveable relative to the cover counter to the force of the restoring spring; and a diaphragm connecting the cover and the sealing body to each other, wherein the diaphragm at least partly surrounds the sealing body. | 01-13-2011 |
| 20110037011 | Non-adjustable water pressure and flow speed regulating flush system - A non-adjustable water pressure and flow speed regulating flushing system includes a valve member adapted for sealedly disposing between the water inlet and outlet to control water flowing from water inlet to outlet through the water chamber, a relief valve disposed within the water chamber for controlling the water flowing from water chamber to water outlet, and a flow speed regulation arrangement which includes an elongated bleed channel for controlling a water pressure between the water inlet and water chamber, so as to regulate a flow speed of the water entering into the water chamber through the bleed channel in a non-adjustable manner. | 02-17-2011 |
| 20110114868 | Diaphragm For a Valve - A diaphragm ( | 05-19-2011 |
| 20110186765 | SINGULATION OF VALVES - A method and apparatus for the singulation of valve plates and/or assembled valves from a lead-frame are described. The method and apparatus utilizes an electric current to fuse tabs which join the valve plate and/or the assembled valve to the lead-frame. The valve comprises a first and second valve plate with offsetting apertures and a flap disposed and movable between the first and second plates. | 08-04-2011 |
| 20110233443 | DIAPHRAGM, DIAPHRAGM VALVE, AND METHOD OF MANUFACTURING DIAPHRAGM - Provided are a diaphragm, a diaphragm valve, and a method of manufacturing a diaphragm capable of increasing a flow rate (Cv value) of gas without degrading long-term durability even when a displacement amount is increased. A diaphragm ( | 09-29-2011 |
| 20110233444 | VALVE - A valve includes a body, a plug and a diaphragm defining an aperture and a seat. The diaphragm is substantially movable in response to a force applied to the seat by the plug. The valve can be cycled between an open state in which the plug is free of the seat, a closed state in which the plug is seated against the seat, and a third state in which the plug is seated against the seat and substantially deflects the diaphragm. | 09-29-2011 |
| 20110260091 | Aseptic or Sanitary Diaphragm Valve - An aseptic or sanitary diaphragm valve has a valve body and at least one cylinder-actuated valve mechanism. A chamber is defined between a cylinder head and a plate or disk, which has a central bore or passage. A flexible diaphragm extends across the cylinder below the plate or disk. A piston within a cylinder is connected with a valve member foot portion, with a stem passing from the foot portion, penetrating the diaphragm, and passing through the bor or passage to the piston. A compression spring urges the piston to either its raised or lowered position, and air pressure may be used to lower or to raise the piston and the associated valve foot. An aperture in the cylinder can reveal a compromise of the diaphragms. | 10-27-2011 |
| 20110297865 | Drain valve assembly - The present invention concerns a drain valve assembly with a pop-up drain stopper for a drain opening. The drain valve assembly has an improved sealing mechanism whereby the drain valve assembly may be easily installed and, in addition, the interface between the drain valve assembly and the drain opening may be easily cleaned. | 12-08-2011 |
| 20110297866 | VALVE, IN PARTICULAR FOR A COMPONENT IN MICROFLUID TECHNOLOGY - The invention relates to a valve, in particular for a component in microfluid technology, comprising valve bodies ( | 12-08-2011 |
| 20120012774 | REED VALVE - A reed valve is adapted to be fixed to a fixing member. The reed valve includes a valve plate and a resiliently deformable reed. The valve plate is fixed to the fixing member and includes a frame part and a supporting column. The frame part has an opening inward of the frame part. The opening passes through the frame part in a thickness direction of the valve plate. The supporting column is disposed across an inside of the opening. The reed is configured to open or close the opening. The frame part includes a frame seating surface with which the reed is engaged. The supporting column includes a column seating surface with which the reed is engaged. The column seating surface is recessed relative to the frame seating surface in the thickness direction. | 01-19-2012 |
| 20120056120 | DIAPHRAGM VALVE - Diaphragm valve ( | 03-08-2012 |
| 20120061606 | VOLUME BOOSTER WITH VARIABLE ASYMMETRY - A volume booster for a fluid flow control device comprises a supply path for supplying a fluid boost to facilitate actuation of an actuator in a first direction, and an exhaust path for enabling controlled exhaust to facilitate actuation of the actuator in a second direction. The supply path defines a supply resistance that is set by the geometry of a supply trim component. The exhaust path includes an exhaust resistance that is set by the geometry of an exhaust trim component. The supply and exhaust trim components are independently removable and replaceable with replacement components to customize the exhaust and supply resistances, and therefore, the exhaust and supply capacities for specific applications. | 03-15-2012 |
| 20120097880 | Diaphragm Valve - Diaphragm valve having a valve body with an inlet and an outlet, a sealing membrane, and a connecting piece connecting the sealing membrane to a pressure piece of a drive. The valve body, the sealing membrane and the connecting piece are rigidly connected together to form an interchangeable, sealed valve body unit that can be connected to the drive. The connecting piece is molded on the sealing membrane, and the valve body and the sealing membrane are welded ultrasonically to one another. | 04-26-2012 |
| 20120138836 | DIAPHRAGM VALVE - A diaphragm valve is used to perform opening/closing operations to switch between a state where two flow paths | 06-07-2012 |
| 20120193564 | FLUID CONTROL VALVE - A fluid control valve includes a resin valve body formed with first and second passages, a resin valve upper part connected to an upper surface of the valve body, and a resin diaphragm valve element held between the valve body and the valve upper part. | 08-02-2012 |
| 20120241659 | DIAPHRAGM CONTROL VALVE HAVING A UNIVERSAL DIAPHRAGM MOUNTING LOCATION - A diaphragm control valve has a universal diaphragm mounting location, the diaphragm control valve includes a bonnet, a valve body, a diaphragm, and a clamping washer. The bonnet includes a first clamping surface that transitions into a first annular retention surface formed by a skirt, and the valve body includes a second clamping surface that transitions into a second annular retention surface formed by an upturned annular lip. | 09-27-2012 |
| 20120248364 | MEMBRANE VALVE - A membrane valve comprising a first and a second valve housing part and a membrane clamped between the valve housing parts comprises a peripherally surrounding bead on the membrane and a thin, axially movable membrane portion adjacent thereto. The bead is supported by the two valve housing parts and is provided with an undercut at a radial inner side. Further, a membrane for installation in a membrane valve is provided. | 10-04-2012 |
| 20120256114 | POWER INJECTABLE VALVE DESIGNS - Pressure activated valves for catheters with improved tolerance of high pressure and high flow conditions are described. Embodiments of the valve comprise a flexible membrane with one or more linear slits therethrough, and means for applying tension to the flexible membrane in-line with the linear slits. The application of tension may optionally be facilitated by structural features of both the flexible membrane and the valve housing. | 10-11-2012 |
| 20130001457 | Dual By-Pass For Diaphragm Type Flushometers - A flush valve diaphragm is provided. The diaphragm includes at least two by-passes orifices. Each by-pass orifice in the diaphragm has a by-pass associated therewith. Each by-pass having a passage therethrough, allows communication with the control chamber above the diaphragm with an inlet chamber below the diaphragm. The diaphragm also integrates the function of locating and providing sealing means to the flush valve system's aux valve mechanism. | 01-03-2013 |
| 20130009086 | Eccentric Diaphragm Valve - An irrigation valve has a valve body with an inlet passage, an outlet passage, and a valve seat intermediate the inlet passage and the outlet passage. A diaphragm includes a valve seat engaging portion that cooperates with the valve seat to control flow through the valve. The valve seat and the valve seat engaging portion of the diaphragm are offset relative to the inlet passage to improve flow through the valve to reduce pressure and energy loss. | 01-10-2013 |
| 20130119289 | DIAPHRAGM AND DIAPHRAGM VALVE - There is disclosed a diaphragm for a high pressure gas diaphragm valve. The diaphragm comprises a sealing body defining a sealing face for seating against a valve seat of the valve to close the valve; an outer flange for attaching the diaphragm to the valve, the outer flange defining a flange plane; and a deformable web that extends between the outer flange and the sealing body, the deformable web including a gusset that has at least one convolute portion. The gusset is deformable to allow the sealing body to move between a natural configuration in which the sealing body is on a first side of the flange plane, and a raised configuration in which at least part of the sealing body is on the opposing side of the flange plane, and wherein the at least one convolute portion biases the sealing body towards the natural configuration. | 05-16-2013 |
| 20130168592 | Diaphragm Valve - The diaphragm valve includes an outer casing, a winding stand, a magnetizable valve core, a nozzle, a rubber diaphragm, a bottom seat, a bottom board, a spring, a rear lid and a copper pin. The rubber diaphragm is fixed at the front end of the valve core, and has a circumferential edge to communicate with the center of the rubber diaphragm through a resilient protruding ring. The nozzle has a flange, a radial hole and an eccentric axial hole. The nozzle is fixed at the front end of the winding stand by the flange. The flange has a stepped hole to mate with the circumferential edge of the rubber diaphragm, a central hole to mate with the center of the rubber diaphragm, and an eccentric hole. The stepped hole communicates with the radial hole through the central hole and communicates with the axial hole through the eccentric hole. | 07-04-2013 |
| 20130200287 | FLOW SHUT-OFF VALVE DEVICE - A valve assembly having a valve-seal on a valve member that moves between an open and a closed position within a valve support housing for controlling fluid flow, particularly for use as a shut-off valve. In many embodiments, advancing the valve member sealingly engages the valve-seal with a valve seating area of the housing to close the valve and shut-off fluid flow through the housing, while retracting the valve member moves the valve-seal away from the seating area to allow fluid flow around the valve-seal and through the valve-seating area. In many embodiments, the valve member includes a proximal handle and angled ramp that engage with a helical ramp of the housing to translate rotation of the handle into axial movement of the member between open and closed positions. | 08-08-2013 |
| 20130334452 | Dosage Valve and Relative Method - A dosage valve for a fluid product, for example a colorant, comprising an at least partly elastic or elastomer element, having at least a cut in the central part so as to define at least two closed/open cooperating lips, which comprises a sensor element associated with the at least partly elastic element in order to detect at least a closed or open condition of the lips. | 12-19-2013 |
| 20130341550 | TWO-WAY VALVE - A two-way valve includes a valve body made of a resilient member and connected to a lower end of a shaft. The valve body is made up from a main body portion having an axial member connected to the shaft, and a thin film skirt portion formed on an outer circumferential side of the main body portion. An outer edge of the skirt portion is sandwiched and gripped between a small diameter part of a housing and a connector of a body. Further, lips that project in a downward direction are formed in a central portion of the main body portion. The lips are seated on a top portion of a partition wall in the body, so that the two-way valve is placed in a valve-closed state. | 12-26-2013 |
| 20140001391 | DIAPHRAGM VALVE | 01-02-2014 |
| 20140001392 | Fluid Transfer Device | 01-02-2014 |
| 20140061525 | DIAPHRAGM AND BACKING CUSHION SHAPING FOR INCREASED MEMBRANE LIFE - A weir-type diaphragm valve a valve body with a fluid channel and a weir having a weir sealing portion; and a diaphragm with two or more diaphragm portions, including a diaphragm weir sealing portion at the weir to respond to one force and travel against the weir sealing portion to close the weir-type diaphragm valve and stop fluid flow through the fluid channel, and respond to a second force and travel away from the weir sealing portion to open the weir-type diaphragm valve and allow fluid flow through the fluid channel, a center flexing portion off the weir configured to experience convex and concave flexing extremes when the weir-type diaphragm valve is closed and opened, and an outer sealing portion configured to be fully constrained between components, one of which includes the valve body, when the weir-type diaphragm valve is closed and opened. The diaphragm portions have different characteristics based on different material stresses associated with different functionality that each portion is configured to perform when the weir-type diaphragm valve is closed and opened. | 03-06-2014 |
| 20140061526 | DIAPHRAGM VALVE - A fluid inflow passage | 03-06-2014 |
| 20140158923 | DIAPHRAGM VALVE - A diaphragm valve, in particular for fluid media, includes a valve body, a diaphragm, and a connecting piece which can be actuated by a drive unit to act on the diaphragm, wherein the valve body and the diaphragm are made of plastic. Two mutually independent seals are provided for sealing the fluid medium with respect to the outside, wherein the valve body and the diaphragm are welded to each other, and the diaphragm is mechanically sealed between the drive unit, or an intermediate piece, and the valve body. | 06-12-2014 |
| 20140166918 | DIAPHRAGM VALVE - A diaphragm valve, more particularly for fluid media, includes a valve body, a diaphragm and a connection piece that can be activated by a drive in order to act on the diaphragm, wherein the valve body, the diaphragm and the connection piece are made of plastic. The valve body and the diaphragm are made of different plastics, wherein the plastic of the diaphragm is more elastic than the plastic of the valve body. | 06-19-2014 |
| 20140191149 | CLAMP RING FOR WELDED DIAPHRAGMS - A diaphragm sealed flow cavity comprises a first body comprising a support surface, a diaphragm comprising an outer portion that is joined by a weld to the first body, a clamped portion, and an inner portion that is movable along an axis, with the clamped portion of the diaphragm being compressed between the bearing surface and the support surface. The diaphragm sealed flow cavity may include a cylindrical body having a crimped portion for joining the cylindrical body to the first body. The diaphragm sealed flow cavity may also include a member that applies a live load to the clamped portion of the diaphragm. In the exemplary embodiments, the diaphragm sealed flow cavity may be realized as part of a diaphragm flow control valve having a valve body, diaphragm and a housing. | 07-10-2014 |
| 20140217321 | DIAPHRAGM VALVE WITH WELDED DIAPHRAGM SEAT CARRIER - A diaphragm valve with an assembly or cartridge that facilitates replacement of the diaphragm, the valve seat or both. The assembly may be a valve assembly having a diaphragm, a seat carrier and a valve seat that are combined into a discrete subassembly or cartridge for a diaphragm valve. The assembly as a discrete cartridge can be easily removed and replaced in order to change out the diaphragm or the valve seat or both. In one embodiment, the diaphragm has a perimeter that is welded to one side of the seat carrier. Flow capacity is favored by providing a gap between a seat carrier and a flow port of the valve body where the gap in part defines a flow area that is the same or greater than the flow area of the flow port. Methods for installing and replacing a valve assembly into a valve body are also disclosed. | 08-07-2014 |
| 20140246618 | MICROFLUIDIC PUMP AND VALVE STRUCTURES AND FABRICATION METHODS - Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps. | 09-04-2014 |
| 20140252261 | FLOW REGULATING DEVICE - A flow regulating device | 09-11-2014 |
| 20140319403 | DIAPHRAGM VALVE AND SEAT HOLDER UNIT FOR DIAPHRAGM VALVE - A diaphragm valve and a seat holder unit for the diaphragm valve which allows easy replacement of a seat is provided. The diaphragm valve includes a retainer configured to hold a seat holder. The seat holder is demountably arranged on a body to hold a seat. The retainer has a substantially cylindrical shape and includes an inward flange portion receiving the outer peripheral edge portion of the seat holder, and is demountably mounted on the diaphragm holding members in a state of holding the seat holder. | 10-30-2014 |
| 20140326915 | DIAPHRAGM VALVE - There is provided a diaphragm valve configured to prevent a body from being scratched significantly even when replacement of a seat is repeated. A body | 11-06-2014 |
| 20150008353 | FLUID CONTROL VALVE - A fluid control valve includes: a valve housing in which a flow path having gas inlet and outlet is formed; a drive device attached to the valve housing; a valve shaft connected to an output shaft of the drive device and moving in an axial direction; and a valve body attached so as to radially extend to an axis of the valve shaft, and opening and closing the flow path by being moved with the valve shaft so that one side surface moves away from or comes into contact with a valve seat formed in the flow path, wherein the valve housing is attached to an attachment target member so that the valve shaft is tilted, and the valve body includes a wall portion corresponding to a portion where a liquid inside the flow path collects due to its weight, within a portion having the valve seat, and formed along an edge portion on the other side surface opposite to one side surface of the valve body. | 01-08-2015 |
| 20150028244 | Tubular diaphragm - Embodiments include tubular diaphragm valves with a preformed mechanical closure point and optionally concave or convex convolution areas located near the flanges. These mechanical closure points and convolution areas give the embodiments an extended operational life, as compared to that of conventional cylindrical diaphragms. | 01-29-2015 |
| 20150108386 | DIAPHRAGM AND DIAPHRAGM VALVE - A diaphragm with excellent durability is provided which can restrain occurrence of a crack resulting from up and down movements of the diaphragm with opening and closing of a flow channel of a diaphragm valve, and a diaphragm valve having this diaphragm. | 04-23-2015 |
| 20150115191 | DIAPHRAGM VALVE - A diaphragm valve which can solve problems of a disc-shaped diaphragm, wherein the amount of deformation is significant and dust is liable to be generated, that the change in volume in opening and closing of the fluid channel is significant, and that a pressure receiving surface area of the diaphragm at the time of channel closure is provided. A diaphragm is formed of a synthetic resin and, a cylindrical portion fixedly fitted on a valve rod, a bottom wall portion closing a lower end opening of the cylindrical portion, a flange portion provided at an upper end portion of the cylindrical portion, and a projecting portion provided at a center portion of the bottom wall portion and facing an upper end opening of a fluid inlet passage. A vertical cross-sectional shape of an axially intermediate portion of the cylindrical portion is formed into a substantially arcuate shape projecting radially outward. | 04-30-2015 |
| 20150129791 | VALVE APPARATUS - A valve apparatus is equipped with a diaphragm disposed displaceably in the interior of a body, and which opens and closes a fluid passage by separating away from and being seated on a valve seat, a conductive shaft arranged in a through hole that is formed substantially in the center of the diaphragm, and a grounding member for grounding the conductive shaft. Each of the body and the diaphragm is formed from a non-conductive material, and one end surface of the conductive shaft is exposed to the fluid passage. | 05-14-2015 |
| 20150323081 | SHUT-OFF VALVE - There is provided a shut-off valve including: a valve body part having a valve body surface; a valve seat part provided around an inlet, and having a valve seat surface disposed at a position opposite to the valve body surface; and a moving mechanism that is connected to the valve body part, and moves the valve body part in a direction of an axis to switch to either a shut-off state or a circulation state, wherein the valve seat part has an endless inner peripheral side projection and an endless outer peripheral side projection that project from the valve seat surface toward the valve body surface along the axis, and the valve body part has a diaphragm forming the valve body surface, and an elastic member disposed on a back surface of the diaphragm. | 11-12-2015 |
| 20150330517 | METHODS AND APPARATUS TO ACCESS AND ALIGN SEALING DISCS - Methods and apparatus to access and align sealing discs are disclosed herein. An example apparatus includes a cage of a fluid regulator, where the cage has a central aperture, and a valve stem to be received by the central aperture. The example apparatus also includes a diaphragm coupled to the valve stem, where an integral protrusion of the cage is to constrain a peripheral edge of the diaphragm against a removable portion of a valve body when the cage is coupled to the valve body. | 11-19-2015 |
| 20150330518 | MEMBRANE VALVE - The invention relates to a membrane valve ( | 11-19-2015 |
| 20150367121 | ANTI-FREE-FLOW VALVE - An anti-free-flow valve for engagement for use with an enteral feeding or infusion pump has a (1) first component connectable to a first tube and having a first cavity and a sealing element and (2) a second component adapted to be connected to the first component and a second tube and having a second cavity, a valve seat and a flexible portion, the sealing element and the valve seat being sealingly engageable to control fluid flow between the first and second cavities, the valve being configured such that applying an axial tension force between the first and second components brings the valve into an open condition, and improvements including: the second component's flexible portion including at least one bellows having a spring function in the axial direction; and a housing at least partially covering the second component and configured to operate as a stop limiting the axial movement of the second component. | 12-24-2015 |
| 20150377367 | INTERMEDIATE PIECE FOR A STOP VALVE - An intermediate piece for a stop valve, in particular a membrane valve, for fluids including a pressure piece. The pressure piece has at least two locking slides for locking a locking member of a closure element. The intermediate piece includes a cylinder in which the pressure piece can be guided in axial manner. The intermediate piece has a recess, which is arranged in such a way that in mounting position of the pressure piece the locking slide can be shifted into the recess, thus releasing the locking member. | 12-31-2015 |
| 20160053899 | VALVE WITH WELDED DIAPHRAGM TO ASSIST OPENING FORCE - A springless diaphragm valve and associated diaphragm have increased lifting force for opening the valve. In an embodiment, the diaphragm is a diaphragm assembly of a domed diaphragm having a surface that contacts the valve seat to close the valve, and a biasing member which may also be a domed diaphragm. The diaphragm has a central portion that is attached to the biasing member, for example by a weld. The diaphragm and the biasing member may be nested together, and each may be circular and include a domed portion. The weld is preferably in a central portion of the diaphragm near the apex or geometric center of the diaphragm. | 02-25-2016 |
| 20160131269 | DIAPHRAGM VALVE - Provided is a diaphragm valve whose durability is improved by proper caulking. On a bottom surface | 05-12-2016 |
| 20160161010 | Unitary Diaphragm - Disclosed are systems and methods for a unitary diaphragm assembly is for use in flush valves. The diaphragm assembly may have a flexible diaphragm which includes a seating portion and a mounting portion at the outer peripheral edge. A flow ring may be positioned adjacent to the seating portion of the diaphragm. An elongated barrel member may extend from the diaphragm in a longitudinal direction and may include a plurality of radial supports positioned circumferentially around the outer surface of the barrel member and along a portion of the length of the barrel member. | 06-09-2016 |
| 20160178072 | DIAPHRAGM VALVE | 06-23-2016 |
