| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 137456000 | Safety cut-off requiring reset | 27 |
| 20120305107 | DAMAGE DETECTION SYSTEM AND VEHICLE - A damage detection system includes an electromagnetic valve that is provided at a first end of a pressure vessel and operated by supplied electric power, a harness that is disposed so as to at least partially extend along at least a part of a bottom surface of the pressure vessel and that serves to supply electric power to the electromagnetic valve, and a damage detector for detecting damage of the pressure vessel based on an input of a pressing force from the bottom surface side of the pressure vessel. | 12-06-2012 |
| 20130056095 | SELF-RESET VALVE - A self-reset valve has a fixed unit, a water diversion body, a stop mechanism, a drive shaft and a clutch. The fixed unit is disposed with an inlet waterway and at least two waterways. The water diversion body is rotatably connected to the fixed unit inside. The water diversion body is disposed with an outer revolution surface having an outer ratch and an inner revolution surface. The stop mechanism is connected to the fixed unit and acted on the outer ratch. The drive shaft is rotatably connected to the fixed unit. The drive shaft is disposed with a control end and a drive end. The clutch is connected between the drive end of the drive shaft and the inner revolution surface of the water diversion body. The reset elastic body is connected between the drive shaft and the fixed unit. | 03-07-2013 |
| 20140053920 | FAIL SAFE HOT WATER TANK - A hot water tank has an electronic circuit on the tank that monitors the incoming water flow and the outgoing water flow. If the sensors in the circuit sense incoming water and no outgoing water flow, then there must be a problem and the system will automatically shut off the incoming water to the tank. Current hot water tanks that do not monitor the flow of water into and out of the tank and, therefore, if the tank ruptures, water is left to flow out of the tank and flood the home. With the system of the present invention, the flow in and out of the water tank is measured and incoming water can be shut off in the event where incoming flow exceeds outgoing flow. | 02-27-2014 |
| 20140076423 | Leak Detection, Containment and Cuttoff System for a Pipeline or Other Conduit - A pipeline leak detection, containment and cutoff system features a flexible tubular jacket fitted circumferentially around the pipeline for expansion by leaking fluid. A coil is wrapped on the jacket and has a terminal fitting that normally resides in an engaged position maintain a predetermined state of a control circuit that connected to a valve installed on the pipeline. When the jacket expands under the action of fluid leaking from the pipeline, this increases the coil diameter a the expanding area of the jacket, which pulls the terminal fitting from its engaged position, thereby changing the state of the control circuit and causing the valve to close the pipeline and prevent further leakage from same. Preferably multiple valves installed along the pipeline are wired in series such that control circuit closes all the valves under a change in the control circuit by any one of the coils. | 03-20-2014 |
| 20140083525 | SLAM SHUT SAFETY DEVICE WITH GUIDED PLUG SUPPORT - A slam-shut safety device includes a valve body, a valve disc, a reset pin, a and a guide collar. The valve disc is shiftable between an open position spaced away from a valve seat, and a closed position seated against the valve seat. The reset pin operatively is coupled to the valve disc and shiftable between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. The guide collar includes a hollow cylindrical portion slidably supported in a guide bore and extending at least partly over the reset pin at a location adjacent to the valve disc. The guide collar is shiftable between a retracted position and an extended position relative to the guide bore for providing added structural integrity and protecting the reset pin from bending forces. | 03-27-2014 |
| 20140124058 | CONTROL MECHANISM FOR SUBSURFACE SAFETY VALVE - A control mechanism for use with a safety valve adapted to seal a wellbore is described. The control mechanism comprises at least one valve actuator for engaging with the safety valve, the at least one actuator being moveable, in use, between a valve open position in which the safety valve is open and a valve closed position, in which the safety valve is closed. The control mechanism further comprises biasing apparatus adapted to bias the at least one valve actuator to the valve closed position, wherein, in use, the at least one valve actuator extends from the safety valve up to a wellbore wellhead. In one described embodiment, the safety valve is moved between the open and closed positions by movement of the at least one valve actuator with respect to the wellbore. | 05-08-2014 |
| 20140373944 | High-Pressure Fluid Conduit - A high-pressure fluid conduit that conducts high-pressure fluid from a high-pressure fluid source to a high-pressure fluid container through a hose unit during open or normal operation. This high-pressure fluid conduit has a safety feature that is activated when the high-pressure fluid conduit fails due to exposure to a predetermined force. The safety feature closes off the flow of high-pressure fluid from the high-pressure fluid source and closes off the escape of high-pressure fluid from the hose unit that entered the hose unit during open or normal operation. | 12-25-2014 |
| 20140373945 | High-Pressure Fluid Conduit - A high-pressure fluid conduit that conducts high-pressure fluid from a high-pressure fluid source to a high-pressure fluid container through a hose unit during open or normal operation. This high-pressure fluid conduit has a safety feature that is activated when the high-pressure fluid conduit fails due to exposure to a predetermined force. The safety feature closes off the flow of high-pressure fluid from the high-pressure fluid source and closes off the escape of high-pressure fluid from the hose unit that entered the hose unit during open or normal operation. In addition, when the hose unit fails, fluid flow from the high-pressure fluid source and high-pressure fluid flow from the high-pressure fluid container is prevented. | 12-25-2014 |
| 137459000 | Responsive to change in rate of flow | 9 |
| 20090173398 | Fluid Sensing Shut-Off Devices with Timer and Methods of Operation - Fluid sensing shut-off devices with timer and methods of operation to shut off fluid flow if a primary shutoff valve sticks in the on condition. An embodiment is disclosed using a microphone to sense fluid flow, with a microprocessor periodically awakening from a sleep mode to power the sensor and determine if there is flow. If there is flow, the microprocessor times flow, and if flow is not shut off within a predetermined length of time, the microprocessor shuts off the valve. The valve itself normally held in a magnetically latched, valve open state, but may be unlatched by a current pulse to close the valve. Various embodiments and applications are disclosed. | 07-09-2009 |
| 20120273066 | SLAM SHUT SAFETY DEVICE - A safety device for a gas distribution system includes a valve body and an upper casing attached to the valve body, the upper casing housing two springs. The two springs are separated by a casting tube. The two springs are attached to a movable diaphragm that is exposed to gas system pressure. The valve body also includes a cam mounted within the valve body. A limit switch is directly connected to the cam such that the limit switch moves directly in response to movement of the diaphragm. Additionally, a reset pin extends from the valve body and interacts with the cam such that the cam may be reset from a closed position to an open position by moving the reset pin. | 11-01-2012 |
| 20150377420 | LEAK-DETECTING SHUT-OFF DEVICE - A leak-detecting shut-off device has a holding mount, a valve seat and an operating set. The holding mount has a connecting segment, a mounting segment, an expansion element and a pushing rod. The expansion element is mounted in the mounting segment. The pushing rod is mounted in the mounting segment, is mounted around the expansion element, and has a mounting cover and multiple pushing panels. The valve seat is connected to the holding mount and has a body, an inlet pipe and an outlet pipe. The body is mounted in the connecting segment and has two connecting boards. The operating set is connected to the valve seat and has a valve shaft, a spring and an operating tab. The valve shaft is movably mounted in the body. The operating tab is connected to the connecting boards, is selectively moved above the pushing rod and abuts against the valve shaft. | 12-31-2015 |
| 137460000 | Excessive flow cut-off | 6 |
| 20080257420 | SLAM SHUT SAFETY DEVICE - A safety device for a gas distribution system includes a valve body, an upper casing attached to the valve body, the upper casing housing two springs. The two springs are co-axially located and separated by a casting tube. Further, the two springs are attached to a movable diaphragm that is exposed to gas system pressure. A snap ring flange is also attached to the valve body, the snap ring flange being used to secure the safety device to a main regulator in the gas distribution system. The valve body also includes a cam mounted within the valve body. A limit switch is directly connected to the cam such that the limit switch moves directly in response to movement of the diaphragm. Additionally, a reset pin extends from the valve body and interacts with the cam such that the cam may be reset from a closed position to an open position by moving the reset pin. | 10-23-2008 |
| 20090107563 | SAFETY VALVE HAVING PISTON WITH MODIFIED ORIFICE - The present invention is for a safety valve having a modified orifice in a piston. The orifice is positioned on an outer radial periphery of the piston. The orifice is a void which has only a partial circumferential boundary. With this design for a piston and orifices the piston may be formed in a mold in a single manufacturing operation. For other designs for a piston having orifices with a complete circumferential boundary, the piston is formed in one operation and the orifice defined in another operation, such as by drilling into the piston to form the orifice. Thus, by positioning the orifice on the outer radial periphery of the piston, the efficiency of the overall safety valve manufacturing process may be improved and the cost of the safety valve may be reduced. | 04-30-2009 |
| 20100193048 | OVERFLOW SHUTOFF VALVE - Improvements in an Overflow Shutoff Valve (OSV) that is designed to automatically shutoff water flow when water flows above a rated amount. It is a self-cleaning design with automatic resetting function. The valve consists of an outer body with an inlet and outlet port with an internally installed rubber Venturi tube assembly, fixed flange, moving flange, coil spring and surge flow suppressing orifice. The lower pressure causes the rubber tube to be squeezed by the water pressure, and then automatically shuts off the valve. When the supply water pressure drops below 5 psi the Overflow Shutoff Valve automatically resets and opens to normal position. A flow suppressor orifice prevents any surge flow or start up flow which could cause premature shutoff of the valve. The Overflow shutoff valve can be installed in-line or in a Y body shutoff valve for easy service. | 08-05-2010 |
| 20100258204 | Device for Detecting Leaks of Fluids - A device for detecting leaks of fluids includes means for metering flow of a fluid towards a premises, shut-off means for the fluid, operable between a delivery configuration of the fluid and a closed configuration to allow/prevent its transit towards the premises, and a management and control unit, able to act in conjunction with the metering means of the flow and to send a signal to the shut-off means to switch from the delivery to the closed configuration. The management and control unit comprises enabling means, able to allow or prevent the signal to be sent to the shut-off means. The device comprises, in addition, means for detecting the presence of a user in the premises, operatively connected to the enabling means in such a way that these allow the signal to be sent to the switch if the presence detector means detect the absence of the user in the premises. | 10-14-2010 |
| 20140261777 | EXCESS FLOW SHUT-OFF DEVICE - Disclosed therein is an excess flow shut off device which is operated under the same conditions by integrally modulating an opening and closing member, a support member for supporting the opening and a blocking member for blocking a passage by the opening and closing member. The excess flow shut off device is easy in quality management and allows an easy manufacture of uniform products operating under the same conditions because a support member, a spring, an opening and closing member, a joining member, and a cylindrical member are integrally joined together and modulated. | 09-18-2014 |
| 20150114490 | WATER MANAGEMENT SYSTEM - A preferred embodiment of the present invention is directed to a water management system. One aspect of a version of the invention comprises a manifold with separate lines running to separate appliances and fixtures. Each individual line detects leaks, alerts that a leak has occurred, shuts down only the leaking line, and provides a visual cue to alert that the line is leaking. In one embodiment of a version of the invention, the water management system comprises a hot water heater water management system that detects leaks, sounds an alarm, shuts down the water heater power, and drains the water heater. In a preferred embodiment, once the water heater is repaired and refilled, the power is automatically restored. | 04-30-2015 |
| 137461000 | High pressure cut-off | 9 |
| 20080257421 | Integral Overpressure Monitoring Device - The present invention provides an integral cantilever monitoring device for a regulator having a positionable vent port that may be disposed proximate the lowest point of the monitoring device to allow drainage of liquids accumulating within the monitoring device due to humidity and precipitation. The monitoring device may also include a connection module allowing the monitoring device to be rotated independently of the actuator and valve body of the regulator to accommodate varying installation environments. The connection module may further include an inlet port for connection to a downstream pressure feedback line when the regulator valve body and connection module portions of a primary downstream pressure feedback passage are out of alignment due to rotation of the monitoring device. | 10-23-2008 |
| 20080289700 | High pressure safety valve, system and method - The present invention comprises, in one embodiment, a compression safety valve apparatus adapted to engagingly connect to an existing gas cylinder valve. In one embodiment, the present invention comprises a housing base having a first bore, a rupture disc holding means having a second bore, at least one rupture disk, a piston having at least a third bore, a spring, and an outer housing cylinder having a forth bore, the first bore, the second bore and the third bore all being in gas flow communication with the compressed content of the tank. In operation, for example, during an over-pressurization event occurs, the extreme force of the escaping gas places a force on the bottom surface of the present invention's rupture disc assembly, so that the piston's beveled surface substantially mechanically engages the outer housing's upper ceiling. This mechanical engagement allows gas to continue to escape from the tank through one or more bleeder bores and a gap. | 11-27-2008 |
| 20120261005 | Torsional Spring for a Slam-Shut Safety Device - A cam assembly for use in a slam-shut safety valve includes a cam having an elongated first cam arm, and the cam is pivotable about a rotational axis. The cam assembly also includes a torsional spring having a pair of stationary outer arms and a pair of pivotable inner arms, wherein the pair of stationary inner arms is coupled to a portion of the first cam arm. The pair of inner arms is adapted to act on the first cam arm to bias the cam into a position that allows the cam to be relatched in a valve rearming process. The pair of inner arms is symmetrically disposed about the first cam arm to prevent lateral displacement of the cam. | 10-18-2012 |
| 20140083526 | SLAM SHUT SAFETY DEVICE WITH GUIDED VALVE DISC - A slam-shut safety device includes a valve body, a valve disc, a reset pin, and a guide collar. The valve disc is disposed within the valve body and shiftable along a slam-shut axis between an open position and a closed second position. The reset pin is operatively coupled to the valve disc and shiftable along the slam-shut axis relative to the valve body between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. The guide collar includes a hollow cylindrical portion extending away from the valve disc at least partly over the reset pin and being slidably disposed in a guide bore of a slam shut body that is connected to the valve body and supporting the reset pin, thereby providing added structural integrity to the rest pin and valve disc. | 03-27-2014 |
| 20140261778 | High Integrity Pressure Protection System (HIPPS) Manifold System and Method - Embodiments of the invention provide a high integrity pressure protection system (HIPPS) manifold including a housing providing a flow path between a process fluid line and a sensor, a first ball valve positioned within the housing and selectively allowing and inhibiting flow through the flow path, and a second ball valve positioned within the housing and selectively allowing and inhibiting flow through the flow path. | 09-18-2014 |
| 20150013785 | SELECTABLE VALVE ASSEMBLY FOR A VEHICLE TRANSMISSION - A hydraulic valve assembly for controlling a clutch in a vehicle transmission. The valve assembly includes a housing with a first port for connection to a source of pressurized hydraulic fluid, a displaceable sealing piston disposed within the housing, a valve spring for displacing the sealing piston, a snap-spring having first and second equilibrium positions, and an overstroke spring. In the first equilibrium position a spring force displaces the sealing piston to uncover the first port to enable fluid flow through the valve, and in the second equilibrium position the valve spring displaces the sealing piston to block the first port to block fluid flow through the valve. Moving from the first equilibrium position to the second equilibrium position includes displacing the overstroke spring. | 01-15-2015 |
| 20160025234 | Torsional Spring for a Slam-Shut Safety Device - A cam assembly for use in a slam-shut safety valve includes a cam having an elongated first cam arm, and the cam is pivotable about a rotational axis. The cam assembly also includes a torsional spring having a pair of stationary outer arms and a pair of pivotable inner arms, wherein the pair of stationary inner arms is coupled to a portion of the first cam arm. The pair of inner arms is adapted to act on the first cam arm to bias the cam into a position that allows the cam to be relatched in a valve rearming process. The pair of inner arms is symmetrically disposed about the first cam arm to prevent lateral displacement of the cam. | 01-28-2016 |
| 20160061339 | EXPLOSION-PROOF VALVE - An explosion-proof valve ( | 03-03-2016 |
| 20160123487 | SLAM SHUT RESET PIN GUIDE ASSEMBLY AND SLAM SHUT SAFETY DEVICE COMPRISING SAME - A slam shut safety device includes a valve body, a valve disc, a reset pin, and a reset pin guide. The valve disc is disposed within the valve body and shiftable along a slam shut axis between an open position and a closed second position. The reset pin is operatively coupled to the valve disc and shiftable along the slam shut axis relative to the valve body between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. The reset pin guide supports one end of the reset pin, thereby providing added structural integrity to the reset pin and valve disc. | 05-05-2016 |
| 137463000 | Fluid released trip | 1 |
| 20160097461 | SLAM SHUT SAFETY DEVICE - A safety device for a gas distribution system includes a valve body, an upper casing attached to the valve body, the upper casing housing at least one spring. Further, the at least one spring is attached to a movable diaphragm that is exposed to gas system pressure. The valve body also includes a release element mounted within the valve body. The release element releasing a relatch plug when the device is activated to move a safety disc into contact with a valve seat to stop fluid from flowing when an overpressure or an underpressure condition is sensed. | 04-07-2016 |
