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| Number | Title | Issue Date |
| 7909262 | Pressure relieved thermal regulator for air conditioning application According to one embodiment of the invention, a control valve for regulating temperature comprises a conduit, a fluid limiter, a restoring actuator, an opening actuator, and a restoring actuator chamber. The conduit has an inlet, an outlet, and an opening between th... | 03/22/2011 |
| 7886987 | Products and process that act as a safety valve to prevent scalding A thermostatic valve incorporated within a plumbing system for regulating the flow of fluid. The thermostatic valve includes two valve assemblies operatively cooperating to preclude the flow of scalding water. The first valve assembly and second valve assembly respo... | 02/15/2011 |
| 7617989 | Automatically reclosable thermostatic control device for valves Thermostatic control device for controlling valves provided with an axially movable stem, includes a base body, an electrically operated thermostatic actuator, and intermediate connecting elements between the thermostatic actuator and the stem of the valve; the devi... | 11/17/2009 |
| 7264223 | Flow rate control apparatus A flow rate control valve comprises a rotary driving source which is rotated by a control signal, a movable member which is displaceable by the aid of a transmitting shaft under a rotary action of the rotary driving source, a valve mechanism which is connected to th... | 09/04/2007 |
| 7070160 | Diaphragm valves A diaphragm valve capable of increasing durability of a diaphragm comprises a valve body internally formed with a valve chamber having an open upper end and a suck-back chamber having an open lower end, between an inlet passage and an outlet passage, and a through h... | 07/04/2006 |
| 6530391 | Temperature activated valve A temperature and pressure sensitive valve is disclosed herein. The valve has a valve piston for regulating flow through the valve, a valve piston guide for directing movement of the piston, the piston guide having one or more passages there through, a th... | 03/11/2003 |
| 6374848 | Automatic mechanism for cut-off and drainage of under low-freezing ambient temperature conditions An automatic mechanism is provided for cutting-off water flow to a plumbing system of a house, an apartment, a business or the like, while at the same time draining water/plumbing systems when subjected to low/freezing ambient temperatures. The mechanism ... | 04/23/2002 |
| 6029648 | Outside wood-burning furnace A natural draft furnace has a firebox inside a water box with fire tubes containing water running through the firebox, flues from the firebox running through the water box, a front/fire door of double wall construction to preheat entering air, a damper in... | 02/29/2000 |
| 5931377 | Air conditioning system for a vehicle incorporating therein a block type expansion valve A block type expansion valve for use in a vehicular air conditioning system has a dampening spring to dampen movements of a diaphragm within a diaphragm chamber. The dampening spring is fixed to an upper fixing member positioned on an adjusting hollow thr... | 08/03/1999 |
| 5779142 | Method for achieving a specific temperature behavior of adjusting elements operating in dependence on temperature and an adjusting element operating in dependence on temperature A method for achieving a specific temperature behavior of adjusting elements, operating in dependence on temperature, of valves or thermostatic apparatus is disclosed, and also an adjusting element, operating in dependence on temperature, of valves or the... | 07/14/1998 |
| 5692388 | Thermostat sensing tube with plastic spiral-cut insulator/protector A thermostat assembly for a room air-conditioning unit includes a sensing tube and a thermoplastic protective tube extending over the sensing tube. The protective tube has a spiral-shaped gap which allows air flowing over the protective tube to directly c... | 12/02/1997 |
| 5692535 | Icing preventer with temperature adjustment washer Apparatus for automatically opening an orifice to allow flow when ambient temperature drops below a predetermined level, such as the freezing point of water. The apparatus is for connection to a liquid line that carries liquid at a selected pressure for p... | 12/02/1997 |
| 5413277 | Liquid-filled thermostatic system A thermostat system includes a liquid-filled activating device (1), and an operating device (3) which is connected to the activating device by a capillary line (4) and which is adapted to control a heat valve. The activating device (1) includes an annular... | 05/09/1995 |
| 5228619 | Thermal expansion valve A power element-valve housing combined type thermal expansion valve has a diaphragm in an element and a driving member for driving a valve body in a housing by a diaphragm deflection. The diaphragm has a center opening surrounded by a tubular projection, ... | 07/20/1993 |
| 5148684 | Injection valve for a refrigeration system This control valve (10) can be used for reducing the temperature of the discharge gas in the compressor (100) of a refrigeration system. The valve (10) includes a body (12) having inlet and outlet ports (20, 22), respectively receiving refrigerant from on... | 09/22/1992 |
| 5143286 | Thermostatic valve A thermostat top part is mounted to a valve housing for rotation relative thereto and is axially removably secured thereto. The thermostat top part has a retaining ring surrounding and rotatable relative to a hollow cylindrical base foot. A clamping eleme... | 09/01/1992 |
| 5095943 | Flow path switching apparatus in steam trap A flow path switching apparatus in an automatic regulating valve includes a base having a fluid inlet and a fluid outlet which are connected to pipes, and an automatic regulating valve portion having an inflow hole and an outflow hole for a fluid to be co... | 03/17/1992 |
| 5044551 | Thermo bulb for use with the thermostatic expansion valve A thermo bulb for use with a thermostatic expansion valve, includes a temperature sensing cylinder connected to a power element of a valve unit of the thermostatic expansion valve, a thermal ballast arranged in the temperature sensing cylinder and made by... | 09/03/1991 |
| 4832070 | Flame failure devices The invention provides a flame failure device in which the reservoir exposed to the flame is charged with air and is communicated via a capillary tube to displace a membrane and hold the main valve in an open position, and the valve is closed by a spring ... | 05/23/1989 |
| 4829981 | Portable warming apparatus for a cup A portable apparatus for warming a cup and its contents has a fuel reservoir connected through a valve controlled by a snap switch to a combustion cage. A thermocouple under the combustion cage returns the snap switch to an "OFF" position, cutting off the... | 05/16/1989 |
| 4821517 | Actuator for producing a displacement movement on a set temperature being reached An actuator comprises an impervious deformable bladder containing a fluid whose boiling temperature is equal to a set cut-in temperature. On reaching that temperature, the fluid within the bladder will be vaporized, cause the bladder to expand, and produc... | 04/18/1989 |
| 4781325 | Thermostatic valve with trap repair cartridge A thermostatic valve such as a steam trap, incorporates a cup shaped trap repair cartridge having the lower end of an annular intermediate valve body of cast metal threaded into an upwardly open, internally threaded cup shaped valve casing. The trap repai... | 11/01/1988 |
| 4778105 | Control device A control device is disclosed comprising a supporting housing assembly, a controller switch fixed to the housing, an expansible chamber actuator supported by the housing for actuating the switch, a capillary tube joined to the actuator, and a vibration da... | 10/18/1988 |
| 4681256 | Thermostatic steam traps There is provided, in a thermostatic steam trap that can operate in either of two modes merely dependent upon which way round the trap is connected in a steam flow line, a temperature-responsive element (9) in which there is a valve member (23) that proje... | 07/21/1987 |
| 4681088 | Freeze protection valve for solar heaters An automatic freeze protection valve apparatus for solar heaters is provided with a remote sensing element, remote from the valve itself and which operates in a non-modulating fashion. The valve includes a valve housing with a remote sensor operatively co... | 07/21/1987 |
| 4634048 | Low-profile encapsulated diaphragm valve for the thermal control of condensate water drainage The invention relates to a volatile-liquid-filled, encapsulated diaphragm valve for the thermal control of condensate water drains. The capsule consists of two unhardened turnings which are welded together, the lower capsule part having a threaded stem to... | 01/06/1987 |
| 4557252 | Freeze protection valve and system The present invention is a device for a solar heating system having a solar collector, a storage tank connected to the solar collector, a pump for circulating liquid from the tank to the solar collector, a supply of liquid at a temperature above freezing ... | 12/10/1985 |
| 4518003 | Pressure responsive cap for gas appliances The invention relates to a pressure responsive assembly for controlling the supply of gas to a gas appliance. A pressure responsive device includes a sealed air bulb positioned to monitor the pilot flame of the appliance. A capillary tube connected at one... | 05/21/1985 |
| 4513881 | Temperature compensator for pressure regulator A temperature compensator mounted on a gas pressure regulator having a spring loaded valve in which the amount of compression in the spring is changed by moving an adjusting member of the compensator in response to changes in temperature. The temperature ... | 04/30/1985 |
| 4507922 | Thermostatic assembly An assembly having a heat expansible fluid therein and capable of expanding and contracting in response to temperature changes between predetermined limits with a first member having a front surface and a rear surface, with the surfaces terminating in a f... | 04/02/1985 |
| 4508262 | Thermostat attachment for a valve The invention relates to a thermostatic valve assembly of the type in which the working element containing the vapor-liquid filling is housed in the temperature setting control knob. A threaded adjusting connection between the knob and an axially moveable... | 04/02/1985 |
| 4469118 | Icing preventor Apparatus for connection to an outdoor water line carrying water at a selected pressure, for producing a selected low flow rate of water from the water line when the outdoor temperature drops below a selected temperature, which comprises an orifice in the... | 09/04/1984 |
| 4344450 | Icing preventor Apparatus for connection to an outdoor water line carrying water at a selected pressure, for producing a selected low flow rate of water from the water line when the outdoor temperature drops below a selected temperature, which comprises an orifice in the... | 08/17/1982 |
| 4322055 | Minute flow regulating valve A regulating valve capable of precisely controlling minute amounts of gaseous or liquid fluids following an electronic, pneumatic or manual command wherein the fluid is throttled between parallel surfaces positioned in respect to each other through the us... | 03/30/1982 |
| 4320778 | Minute flow regulating valve A regulating valve capable of precisely controlling minute amounts of gaseous or liquid fluids following an electronic, pneumatic or manual command wherein the fluid is throttled between parallel surfaces which are part of a replaceable trim insert and wh... | 03/23/1982 |
| 4290553 | Rotary knob for thermostatic valves of radiators The invention relates to a manually setable, knob-type thermostatic control assembly for radiator valves. The knob normally has a fixed or usual setting to provide a desired temperature for a room. Occasionally the setting is temporarily changed for one r... | 09/22/1981 |
| 4278234 | Minute flow regulating valve A regulating valve capable of precisely controlling minute amounts of gaseous or liquid fluids following an electronic, pneumatic or manual command wherein the fluid is throttled between a pair of flat, parallel plates positioned in respect to each other ... | 07/14/1981 |
| 4276354 | Steam traps or the like The disclosure relates to a housing in which any one of a plurality of steam trap valve assemblies may be installed and which may be machined to accommodate a plurality of different inlet and outlet conduit configurations. The housing includes a main body... | 06/30/1981 |
| 4214698 | Arrangement for control of the temperature of heat radiators in a co-tube system A heat control system for a discontinuously operated heat radiator of the co-tube type is disclosed. A thermostat located away from the radiator controls the opening and closing means of an inlet steam valve located between the steam feeder connection and... | 07/29/1980 |
| 4180208 | Temperature limiting shower control valve A valve for limiting the temperature of water flowing to a shower head, including a poppet valve member moveable into sealing engagement with a seat in response to the operation of an expansible temperature sensing member. Resilient means for accommodatin... | 12/25/1979 |
