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| Number | Title | Issue Date |
| 8167217 | Rapid-response thermostatic element as well as a cartridge and valve that are equipped with this element A thermostatic element includes a metal cup that contains a material, which can expand and contract according to variation in its temperature, and is provided on an inside thereof with an insert that separates its inside volume (V1) into at least two cavi... | 05/01/2012 |
| 7971798 | Resettable thermal pressure relief device A resettable thermal pressure relief device (TPRD) is disclosed. The TPRD includes a piston, a housing adapted to receive the piston and allow movement between an open and a closed position. The housing includes an actuator having a temperature sensitive material di... | 07/05/2011 |
| 7469841 | Self-contained thermal actuator A self-contained thermal actuator positions the piston return member inside the actuator cup. The inventive configuration eliminates the guide and diaphragm seal that closed the open end of the wax filled cup in the typical thermal actuator configuration. The piston... | 12/30/2008 |
| 7407113 | 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... | 08/05/2008 |
| 7392955 | System and method for temperature control of hot-water supply system A valve assembly for providing hot water includes a hot water side with a hot water inlet and a cold water side. The valve assembly also includes a central channel for fluid communication between the cold water side and the hot water side and a bypass valve portion.... | 07/01/2008 |
| 7255286 | Temperature compensation valve A temperature compensation valve is hereby provided wherein the inner cavity of the valve comprises a puck, a metal piston (gas control device), and a spring. The spring serves to bias the piston towards the puck, and the puck expands and contracts proportionately i... | 08/14/2007 |
| 7175102 | Thermoelement A thermal element of a simple structure which can have a reduced cost because a minimum required number of structural components are used, excels in response and endurance and enables forward and backward movement of a piston with the prescribed stroke under the eff... | 02/13/2007 |
| 6902391 | Temperature-controlled fuel valve, especially for a fuel-operated heating burner of a vehicle heating system A temperature-controlled fuel valve, especially for a fuel-operated heating burner of a vehicle heating system has at least one valve member (40) that is adjustable as a function of a temperature in the area of a heating burner (30). ... | 06/07/2005 |
| 6820817 | Adjustable electronic thermostat valve The present invention relates to an adjustable electronic thermostat valve comprising an actuating means provided with a rod for stroking a chamber of an expendable thermal element, so that temperature at which the thermostat valve opens can be easily adjustable bas... | 11/23/2004 |
| 6772958 | Thermal flow control valve A thermal flow control valve uses a cylindrical valve sleeve in a stepped bore to regulate fluid flow between an inlet and an outlet. A wax filled actuator is coupled to the valve sleeve to move the sleeve from an open position in which radial flow openings in the s... | 08/10/2004 |
| 6726110 | Thermostatically controlled mixing valve A thermostatic mixing valve contains a control bush, which can be displaced by an expansion element, which is exposed to the mixing water temperature. As a function of the mixing water temperature and the set desired temperature, the control bush is displaced for si... | 04/27/2004 |
| 6702187 | Air diffuser A diffuser (10) for controlling flow of air in an air conditioning system, the diffuser comprising two temperature sensitive elements (20, 22) for respectively sensing room temperature and duct temperature variations. The elements (20, 22) are axially ali... | 03/09/2004 |
| 6604687 | Thermal fluid control valve A thermal control valve provides more accurate control of the valve outlet temperature for a high flow rate valve in a low flow rate environment. The valve utilizes a thermal motor to close the valve during high temperature operation and includes flow-dir... | 08/12/2003 |
| 6578769 | Thermostat housing A thermostat housing assembly (10) presents a mounting face (22) including n outer seal (26) disposed in an outer seal groove (24) and an inner seal (32) disposed in an inner seal groove (30). The outer seal (26) includes a lip (38) extending radially inw... | 06/17/2003 |
| 6557770 | Thermostatic cartridge for mixer taps To obtain an exact regulation of temperature, a strong flow, and a moderate cost, the cartridge comprises a first disc having two transverse hot fluid passages and two transverse cold fluid passages as well as a groove, the base of which forms a seat for ... | 05/06/2003 |
| 6394361 | Device for automatically balancing a liquid-based heat-transfer system In a device including a first calibrated or adjustable orifice and a second orifice located downstream of the first orifice, the opening of the second orifice is adjusted by a valve whereof the position is controlled by apparatus displacing the valve depe... | 05/28/2002 |
| 6378776 | Fast-response thermostatic element A thermostatic element includes an elongated cap, containing a material expandable and contractible as a function of the direction of variation of its temperature. A piston moveable in the longitudinal direction of the cap is coupled to the expandable and... | 04/30/2002 |
| 6328219 | Temperature-responsive mixing valve A temperature-actuated mixing valve for controlling outlet temperature in a fluid flow system including a valve housing having first and second fluid supply inlets for introducing first and second respective supply fluids and a fluid outlet for dispensing... | 12/11/2001 |
| 6085984 | Safety cartridge for thermostatic mixer tap A safety cartridge for thermostatic mixer taps includes a thermostat carrying a slide having two valves for shutting off respective flows of hot and cold water. A region of the thermostat is housed in a piston having a part which is guided by a reversibly... | 07/11/2000 |
| 6029686 | Thermally responsive valve A freeze protection plug has latching balls engageable bayonet-fashion with grooves in a fitting. The balls are normally held in engagement with the grooves by a cam, but move inward to release the plug from the fitting when the cam is moved by a thermal ... | 02/29/2000 |
| 6012642 | Drive mechanism for controlling a fluid flow The cross-sectional flow area of a fluid duct and/or the flow direction of a fluid flow out of a fluid duct or air outlet is controlled by a control drive with two expansion drives positioned either in axial alignment with each other or with their longitu... | 01/11/2000 |
| 5984197 | Thermostat The invention is a thermostat for a cooling system comprising a valve member configured to be positioned in a valve port in the cooling system. The valve member is configured to impede or prevent a flow of a thermal conducting medium into or out of the va... | 11/16/1999 |
| 5979777 | Sanitary mixer tap with a thermostatic device The invention is a sanitary mixer tap with a thermostatic device (1), especially for wall installation, with a thermostat cartridge (3) containing an overtravel unit (9). This unit (9) contains a sleeve (14), at least one pressure spring (15) and at least... | 11/09/1999 |
| 5967410 | Thermal 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 |
| 5690276 | Two stage thermostatic valve device A thermostat having a main valve and a secondary valve is disclosed both of which are biased closed by a single coiled compression spring and opened by a single piston. The entrance to the channel of the secondary valve is maintained at a maximum dimensio... | 11/25/1997 |
| 5676309 | Thermally responsive flow control valve A flow control valve comprises a valve body with a central flow passage containing a poppet releasably engagable with an annular valve seat, the poppet comprising a poppet head engageable with the valve seat and a central bore filled with an expansion mem... | 10/14/1997 |
| 5642859 | Temperature-sensitive safety valve assembly A temperature sensitive safety valve assembly includes a housing for mounting at a faucet outlet and a safety valve element consisting of a rigid cap and an elastic bellows containing a body of temperature sensitive material. Below a predetermined tempera... | 07/01/1997 |
| 5641119 | Thermal 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 |
| 5593088 | Heating device for motor vehicles A heating device is provided for motor vehicles with a water-cooled internal combustion engine, which heating device has a heat exchanger which is acted on by the cooling water circuit of the internal combustion engine on the one hand and by an auxiliary ... | 01/14/1997 |
| 5560541 | Anti-scald valve for bathroom showers A hot water shut off valve for use for domestic household water shower use which shuts off excessively hot water. The valve generally includes an water inlet source opening to an inner chamber. The inner chamber has an outlet source at the base of said ch... | 10/01/1996 |
| 5516042 | Thermally activated two-way valve A two-way thermally activated valve is configured within a valve body having a bore therethrough which communicates with an inlet port, an outlet port and an exhaust port. A valve spool is disposed within the bore. The valve spool has a relieved portion w... | 05/14/1996 |
| 5419488 | Thermostatic valve In the case of a thermostatic valve for a cooling system of an internal-combustion engine comprising a thermostatic working element, it is provided that the housing of the working element is held in a stationary manner, in that the working piston is provi... | 05/30/1995 |
| 5176317 | Thermally responsive valve A thermally responsive valve for detecting the temperature of an engine of motor vehicles includes: an upper housing having an inlet port, and outlet port, and a cylindrical chamber; a lower housing including thermal expansion member in a thermal transmit... | 01/05/1993 |
| 5135163 | Three-way temperature regulator valve containing separate valve assemblies A thermostatically controlled three-way valve is provided with a valve actuating assembly containing a wax-type thermally responsive acutator that is mechanically separate from a valve assembly containing a valve poppet supported by a valve stem so as to ... | 08/04/1992 |
| 5119061 | Thermo-actuator A guide member is slidably mounted on a rod, a resilient seal bag is provided around a first end portion of the rod and secured to the guide member, and a tubular sealing member is slidably mounted on a second end portion of the rod. The rod is inserted i... | 06/02/1992 |
| 5024378 | Shut-off valve for scald prevention An assembly is provided for the prevention of scalding in showers and other such installations. The assembly includes a valve assembly within a mixed water supply line and a temperature sensitive element for controlling the operation of the valve assembly... | 06/18/1991 |
| 5022583 | Register blade mover An actuator mechanism for automatically changing and adjusting the orientation of air discharged from the register of an air distribution system solely under the variation of the supply air temperature. The actuator mechanism includes a ram exposed to the... | 06/11/1991 |
| 5018665 | Thermal relief valve A thermal relief valve is constructed and arranged to sense the fluid temperature of a pump and to open when this fluid temperature becomes too high to discharge pump fluid to prevent the occurrence of an excessive temperature conditon of the pump fluid.... | 05/28/1991 |
| 4961530 | Engine cooling system, structure therefor and methods of making the same An engine cooling system, structure therefor and methods of making the same are provided, the system comprising a housing having an inlet and an outlet, and a thermostat construction disposed in the housing between the inlet and the outlet for controlling... | 10/09/1990 |
| 4948043 | Wax-pellet thermostat A wax-pellet thermostat having a valve seat, a piston secured to the valve, a guide member slidably mounted on the piston, a valve secured to the guide member, a disphragm secured to the guide member, and a wax provided in the cylinder. A gap is provided ... | 08/14/1990 |
