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Class 236/92C - Pressure- and temperature-actuated relief valves


Subclass of Class 236 - Automatic temperature and humidity regulation
No. of patents: 31
Last issue date: 04/29/2008


NumberTitleIssue Date
7363939Bleed valve
A bleed valve (1) for a pipe into which a non-return function is integrated. The bleed valve is preferably designed to be a thermal valve. ...
04/29/2008
7320336Plug incorporating pressure-sensitive valve
A plug which is insertable into a outlet from a vessel, to seal the vessel so that it may hold liquid. To prevent overflow, the plug has an in-built valve which automatically opens when it experiences a predetermined threshold pressure. The threshold pressure can be...
01/22/2008
7299995Expansion valve
The body of a valve has an orifice that internally connects a high-pressure passage through which a refrigerant flows in and a low-pressure passage through which the refrigerant flows out. The valve includes a valve plug for adjusting the flow rate of the refrigeran...
11/27/2007
7299993Apparatus for detecting a failure of a thermostat for an engine
An apparatus for detecting a failure of a thermostat provided between an engine and a radiator is provided. The thermostat regulates circulation of cooling water between the engine and the radiator. The apparatus comprises a radiator water temperature sensor dispose...
11/27/2007
6971533Sealing cap for a motor vehicle radiator
A pressure cap for a fixed neck of an automobile radiator is provided with an outer cap component and with an inner cap component which has a flow connection between the inside and the outside of the tank and a valve arrangement for releasing and blocking the flow c...
12/06/2005
6941938Adapter assembly with floating pin for operably connecting pressurized bottle to a paintball marker
An adapter assembly for releasably interconnecting a pressurized bottle with a paintball marker, wherein the adapter assembly includes a piercing pin moveable between retracted position and an extended position. The adapter assembly includes an internally threaded f...
09/13/2005
6685441Scroll compressor
A scroll compressor of simple structure and low production cost which can be protected when abnormal pressure state or abnormal temperature state of the compressor comprises: a sealed casing including a first chamber for forming a low pressure and a secon...
02/03/2004
6360957Thermally reactive radiator closure assembly
A thermally reactive closure assembly for sealing a filler neck opening of a radiator and for controlling the fluid flow from the radiator through a passageway. The closure assembly includes a cap member and a vent valve associated with the passageway. Th...
03/26/2002
5967410Thermal relief valve
A thermal relief valve to be mounted in a fluid flow line. The valve comprises a valve body and a valve actuator movable in a bore defined by a bore wall in the valve body from a sealing position in which the actuator sealingly engages a valve seat to blo...
10/19/1999
5738276Valve
In the case of a valve having a closing member and having a switching element which moves the closing member into the opening direction when a given temperature is reached, it is provided that the closing member can be moved in the opening direction again...
04/14/1998
5641119Thermal relief valve
The present invention relates to a thermal relief valve that includes a main body with an inner annular surface that includes a shoulder proximal to one end of the main body. The relief valve also includes a spring that rests on the shoulder of the inner ...
06/24/1997
5263643Thermally responsive relief valve
A thermally responsive pressure relief valve using a bimetallic valve disc as a component. The bimetallic valve disc is used as a temperature sensitive valve seal. When temperatures go beyond the set point of the disc, it opens the valve with a snap actin...
11/23/1993
5238185Thermostatic valve device having a pilot valve
A thermostatic valve device for a coolant circulating system of an internal-combustion engine having a thermostatic working element which has a housing containing an expansion material and a working piston which is movable out of the housing in a moving-o...
08/24/1993
5228618Thermal and flow regulator with integrated flow optimizer
A valve assembly is disclosed which includes a first valve disc positionable against a valve seat in response to sensed temperature. The first valve disc includes a central aperture which is closeable by a second valve disc held in position by a compressi...
07/20/1993
5197671Pressure relief valve with thermal trigger and movable seal plug
A thermally activated pressure relief valve includes a valve housing with an inlet communicating with an interior of a pressure vessel, and a passage from the inlet, through the housing, to an outlet for communicating with the exterior of the housing. A s...
03/30/1993
5161738Pressure and temperature relief valve with thermal trigger
A thermally activated relief valve is used with a compressed gas storage cylinder. A valve body has a passage for communication with the interior of the cylinder. A metal diaphragm sealing the passage has a first side exposed to the interior of the cylind...
11/10/1992
5071066Pressure and temperature responsive valve
A valve apparatus including a housing having a plastic body defining an inlet opening, an outlet opening, and a fluid communication path and an abutment surface therebetween; a valve seat movably disposed in the communication path and adapted to engage th...
12/10/1991
5048751Pressure and temperature relief valve and diaphragm valve
A temperature and pressure responsive relief valve assembly preferably used in the cooling system of an internal combustion engine to control the rate of flow of a coolant fluid through the engine, which valve assembly comprises a housing having an inlet ...
09/17/1991
4978060Engine coolant thermostat with pressure relief feature
An engine coolant thermostat having an annular mounting member with the poppet seat and outer peripheral mounting flange covered with a unitary elastomer cover. A thermally responsive actuator means with a movable output force member is registered against...
12/18/1990
4865249Safety device
A safety device for an engine cooling system having a heater core circuit for circulating the engine cooling water through the heater core of an automotive air conditioning system, and a radiator circuit for circulating the engine cooling water through a ...
09/12/1989
4836443Temperature-dependent pressure release device for pressure vessels
Thermal expansion from the heating up of a pressure vessel in the form of elongated cylinder for containing a nuclear reaction is used to produce motion, beginning at a certain limit temperature, which is used to actuate a lever mechanism to open a safet...
06/06/1989
4592896Combination steam and unsaturated chemical vapor sterilizer
A temperature sensor/pressure relief valve has a sensing end positioned within the pressure chamber of a sterilizer and an exhaust end positioned outside the pressure chamber. The temperature sensor is cooperatively adapted to a terminal apparatus at the ...
06/03/1986
4591092Energy saver damper assembly
An energy saver automatic temperature responsive vent, for permitting the passage of air from one defined space to another, which includes a frame for mounting over an opening extending from one defined space to another defined space, the frame having a c...
05/27/1986
4586654Energy saver damper assembly
An energy saver automatic temperature responsive vent, for permitting the passage of air from one defined space to another, which includes a frame for mounting over an opening extending from one defined space to another defined space, the frame having a c...
05/06/1986
4530440Container lid with temperature responsive vents
A food storage and reheating receptacle (1) with a lid having heat openable apertures (4). Material of lid is such that cut outs on lid tend to bend or deflect from lid surface upon heating thereby causing ventilation of contents of receptacle....
07/23/1985
4520959Energy saver damper assembly
An energy saver automatic temperature responsive vent, for permitting the passage of air from one defined space to another, which includes a frame for mounting over an opening extending from one defined space to another defined space, the frame having a c...
06/04/1985
4489883Temperature regulated dual pressure device
A temperature regulated dual pressure radiator cap for an engine coolant system is disclosed having a temperature actuated valve that operates to normally open a large pressure responsive valve area to the coolant pressure below a predetermined coolant te...
12/25/1984
4426196Oil supply system
A pumped oil supply system, for example for lubricating an internal combustion engine incorporates a relief valve the control element of which has superimposed thereon an opening force derived from a temperature responsive element responsive to the temper...
01/17/1984
4344564Thermal by-pass valve with integral pressure relief
A thermal by-pass valve with integral pressure relief including a body having an inlet port and a pair of aligned outlet ports and a T-shaped passage connecting the ports, a temperature sensitive valve element movably mounted in said passage adapted to cl...
08/17/1982
4085765Pressure relief valve
A one-shot pressure relief device which can be hermetically sealed comprising a housing with a port fitting for connecting to a pressure zone to be monitored, the fitting having a passage which leads into a central cavity within the housing from the top s...
04/25/1978
4078722Relief valve
An improved relief valve of the type responsive to a predetermined thermal and/or pressure condition. The valve includes a valve body having an inlet, an outlet, an internal passage interconnecting the two, a valve seat about the passage and an opening co...
03/14/1978
 
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