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| Number | Title | Issue Date |
| 8141574 | Thermally activated pressure relief The housing is attachable to a high pressure fluid containing structure. A piston is provided within the housing, with the piston having a closed position and an open position. The closed position blocks an outlet vent of the relief device, with the open position al... | 03/27/2012 |
| 7958906 | Thermally induced single-use valves and method of use In accordance with an embodiment of the present invention, a thermally induced single-use valve is provided including a silicon wafer having a top surface and a bottom surface and at least one cavity formed in the bottom surface of the wafer, a thermally deformable ... | 06/14/2011 |
| 7814925 | Relief valve device Under emergency, a valve body displaced from a closed position to an open position in association with melting of a fuse member receives resultant of pressing forces of a primary pressure of gas guided through a primary port in an opening direction in a state where ... | 10/19/2010 |
| 7721750 | Modified heat pipe for activation of a pressure relief device A heat pipe is disclosed, the heat pipe capable of transferring heat to actuate a pressure relief device by heat transfer through either capillary action involving a wicking material and a working fluid, or by a consumable fuse in the case of leakage of the working ... | 05/25/2010 |
| 7392766 | Temperature and pressure relief apparatus for water heater A liquid heating appliance, representatively a water heater, is provided with protective apparatus for preventing rupture of its liquid storage tank portion caused by overheating of pressurized liquid therein. Illustratively, the protective apparatus includes a leng... | 07/01/2008 |
| 7347423 | Arrangement in connection with mechanical seal An arrangement in connection with a mechanical seal includes at least two sliding surfaces pressing against each other, which are arranged to seal a gap between a rotating and a non-rotating machining part, and mechanism for providing a sealing fluid flow cooling th... | 03/25/2008 |
| 7337799 | Gaseous fuel vehicle and automatic vent system A vehicle (1) equipped with a tank (2) for storage of a fluid under pressure on the vehicle, the tank being connected to at least one vent channel (3 and 33), the vent channel leading to a discharge orifice (34), the vent channel b... | 03/04/2008 |
| 7309022 | Substance shutoff device and fuel cell There is provided a substance shutoff device for shutting down the communication of at least one of an inflammable substance and an oxidizer when the inflammable substance and the oxidizer are brought into contact with each other to thereby prevent further contact b... | 12/18/2007 |
| 7290556 | Fire collar A fire collar or fire damper for location within a concrete slab of a building. The device incorporates a damper arrangement (12) and a heat detector (18, 19) comprising a metal alloy or lead which melts when a present temperature is reached, causing t... | 11/06/2007 |
| 7225810 | Valve for use in high pressure gas containers An on-off valve mounted in a high pressurized gas container, which has a holding portion for holding a flow amount controlling member in a path formed in an upper stream side of the body of the valve, and in which a flow amount controlling member is movably held. In... | 06/05/2007 |
| 7185668 | Closing device for fluid passage A valve device for automatically closing a gas pipe when a fire breaks out. The valve device includes a gas thermosensitive generating composition, which decomposes and generates a large amount of gas within a short period when exposed to a high temperature. The val... | 03/06/2007 |
| 7175772 | Small scale actuators and methods for their formation and use An actuator assembly and method for making and using an actuator assembly. In one embodiment, the assembly includes an actuator body having an actuator channel with a first region and a second region. An actuator is disposed in the actuator channel and is movable wh... | 02/13/2007 |
| 7150287 | Safety valve A safety valve comprises a main body, fixed body, meltable body, movable body, biasing member, movable plug and plug holding means. The fixed body has a small passageway communicating with the interior of a container, and an upper large passageway. The movable plug ... | 12/19/2006 |
| 7111821 | Control valve, in particular plug valve with sealing system The present invention relates to a plug valve comprising a valve body and a shutter that can be actuated, in the form of a segment of a sphere provided with a mobile shaft in rotation and/or translation, said valve also comprising a double-barrier sealing system at ... | 09/26/2006 |
| 7111818 | Safety valve A safety valve comprises a pressure receiving hole (20), an actuation chamber (21), a discharging hole (22) and an alloy accommodating chamber (25). An alloy (27) of a low-temperature melting point is accommodated within the alloy ... | 09/26/2006 |
| 7080820 | Elliptical sealing surface for butterfly valve A reduced component wear valve is comprised of a valve body having a passage therethrough and a disc attached to a rotatable shaft. The disc is utilized with a seal forming a gap between the disc and the seal proximate to the rotational axis of the disc. When the di... | 07/25/2006 |
| 7017944 | Multiple chamber inflator A multiple-chamber inflator (10) for a vehicle occupant protection system. The inflator (10) includes a housing (12) having a first end and a second end, and a divider disc (18) positioned in an interior of the housing (12) interme... | 03/28/2006 |
| 7017599 | Thermal relief vent and method of manufacturing the same An improved thermal relief vent for a fuel tank, and a method of manufacturing the same, includes a thermal relief ring that is used to create a mechanical seal within the vent. The thermal relief ring, at room temperature, is crimped in place by use of the vent cap... | 03/28/2006 |
| 7004445 | Mechanical override for a valve actuator An apparatus and method for manual operation of an actuator is disclosed. A mechanical override includes a housing coupled to the actuator, a drive ring, and a shaft extending through a bore of the housing. The drive ring rotationally keys to the bore such that the ... | 02/28/2006 |
| 6994101 | Pressure relief valve Pressure relief valve including an annular nut of relatively high thermal conductivity including a first end portion providing an inwardly extending axial cylindrical surface and an internal annular surface extending radially outwardly from the cylindrical surface a... | 02/07/2006 |
| 6959719 | Fire collar A fire collar or fire damper for location within a concrete slab of a building. The device incorporates a damper arrangement (12) and a heat detector (18, 19) comprising a metal alloy or lead which melts when a preset temperature is reached, causing th... | 11/01/2005 |
| 6862852 | Sealing system and gasket therefor The invention releases to a sealing system comprising a cylindrical tube of a material that is capable of deformation under the influence of a temperature increase, and a gasket of an at least partially elastic material for sealingly retaining the tube in a lead-thr... | 03/08/2005 |
| 6814097 | Pressure relief device A pressure relief device comprising a body including an exterior surface, a cavity, an inlet, an outlet, and an aperture, each of the inlet, the outlet, and the aperture opening into the cavity, a temperature sensitive bonding element and a valve, disposed within th... | 11/09/2004 |
| 6776181 | Safety valve for pressurized fluid tanks The valve is intended to be opened at a predetermined temperature in order to release the pressurized fluid from the tank and its opening is triggered by melting of a meltable material. It comprises a body in the shape of a socket (10), the open end of which ... | 08/17/2004 |
| 6619497 | Apparatus for venting a container containing fluid Apparatus for venting a container containing a fluid and including a poppet mounted to the bottom of a cap or flap mounted to a housing for being mounted to the container, a fastener for fastening the cap of flap to the housing and which fastener may be a... | 09/16/2003 |
| 6561479 | Small scale actuators and methods for their formation and use An actuator assembly and method for making and using an actuator assembly. In one embodiment, the assembly includes an actuator body having an actuator channel with a first region and a second region. An actuator is disposed in the actuator channel and is... | 05/13/2003 |
| 6491055 | Pressure relief apparatus A pressure relief apparatus includes a valve having a body. A shaft is rotatably disposed in the body and has an exterior end extending through the body. A plug, which may contain an internal passageway, is mounted on the shaft and is disposed in the flui... | 12/10/2002 |
| 6488044 | Pressure relief apparatus A pressure relief apparatus includes a valve having a body. A shaft is rotatably disposed in the body and has an exterior end extending through the body. A plug, which may contain an internal passageway, is mounted on the shaft and is disposed in the flui... | 12/03/2002 |
| 6478090 | Method and apparatus of operating devices using actuators having expandable or contractable elements An apparatus and method of operating devices (such as devices in a wellbore or other types of devices) utilizes actuators having expandable or contractable elements. Such expandable or contractable elements may include piezoelectric elements, magnetostric... | 11/12/2002 |
| 6382234 | One shot valve for operating down-hole well working and sub-sea devices and tools This invention relates generally to remotely operated well borehole or sub-sea tools for oilfield use, and more particularly, for a one shot valve useful for activating such well tools or sub-sea devices in a safe and reliable manner.... | 05/07/2002 |
| 6382232 | Remote triggering system and retrofit kit for thermal-pressure relief devices A heat-responsive fuse cord is positioned in the proximity of a pressure vessel and is thermally coupled to a thermal-pressure relief device which is in communication with the pressurized contents of the vessel. When ignited the fuse cord burns to a therm... | 05/07/2002 |
| 6367499 | Safety valve A safety valve has a valve body, a piston contained in the valve body, a soluble alloy filled between said piston and said valve body, and a spring inserted between the piston and the valve body. The piston includes a path connecting both ends thereof, an... | 04/09/2002 |
| 6302134 | Device and method for using centripetal acceleration to device fluid movement on a microfluidics system This invention provides methods and apparatus for performing microanalytic and microsynthetic analyses and procedures. Specifically, the invention provides a microsystem platform for use with a micromanipulation device to manipulate the platform by rotati... | 10/16/2001 |
| 6286536 | Safety device for a vessel under gas pressure A safety device for an apparatus under pressure, such as a vessel under gas pressure, includes a housing having an overflow channel in fluid communication with the interior of the apparatus, and an outlet port. Received in the housing is a thermal trigger... | 09/11/2001 |
| 6279597 | Thermal safety valve for automatically shutting off pipes Inside the casing (1), there are three or more ribs (8) arranged with their longitudinal axes parallel to the closing body's direction of movement when closing so that each rib forms a slide-way for the closing body (5) moving from open into closed positi... | 08/28/2001 |
| 6227226 | Fire activated, fail safe, gate valve bonnet A well control system having well controlled fluids distributed through pipes includes valves that are opened by a heat softened valve obstruction element. The translation of a fluid flow obstructing gate in a gate valve is driven by a stem element attach... | 05/08/2001 |
| 6202668 | Valve with fire-resistant seal A valve with fire-resistant seal for use in industrial piping applications. The valve includes a valve body with a valve element therein. The valve is illustrated as a ball valve, but other valve configurations could also be used. A valve stem engages the... | 03/20/2001 |
| 6125872 | Temperature activated diversion valve A temperature activated diversion valve for supplying a first inflow fluid as an outflow fluid and for switching to supply a second inflow fluid as the outflow fluid if the first inflow fluid reaches a specified temperature. The temperature activated dive... | 10/03/2000 |
| 6006774 | Thermally activated pressure relief valve or fuse plug for protecting pressurized devices from over pressure due to fire A novel PRD (pressure relief device) design called fuse plug which is creep-resistant and leakage-free is developed to improve the thermal response of PRD to fire when it is used as a temperature safety device for valves, cylinders, pressurized pipes, or ... | 12/28/1999 |
| 5954138 | Fire extinguisher valve and fire-extinguishing equipment The fire-extinguishing device proposed includes a container, holding a gas under pressure, and a fusible hollow element designed to actuate the device. The fusible hollow element is connected to the extinguishant container in such a way that it is acted o... | 09/21/1999 |
