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| Number | Title | Issue Date |
| 7951500 | Anode gas stack start-up heater and purge gas generator In one embodiment the present invention provides for an anode side gas flow heater for a fuel cell generator that comprises a recirculating anode gas flow 28, at least one burner 24, and an energy source 22. The energy source heats the burner, t... | 05/31/2011 |
| 7293720 | Fluid balanced paint system Disclosed herein is a paint circulation system for a painting line, comprising a supply channel, a return channel and a plurality of drop lines downstream of the supply channel and upstream of the return channel, a paint pump means for circulating paint through the ... | 11/13/2007 |
| 7089955 | Recreational vehicle low temperature water supply warming system The present recreational vehicle water warming and circulating system uses the heated water in the water heater to heat the on-board water supply when the outside air temperature drops below the freezing point of water. The system includes a holding tank for contain... | 08/15/2006 |
| 6935361 | Pipe, piping system, radiant heating system, and kit A pipe, piping system, kit, and radiant heating system that include lengths of cross-linked polyethylene pipe, which form connections between flow components. Some embodiments utilize a sheath disposed about the outside of the cross-linked polyethylene pipe to enhan... | 08/30/2005 |
| 6652267 | Burner for the partial oxidation of liquid fuels which contain carbon The burner has at least two fuel-carrying tubes which are arranged in parallel, the distance between adjacent fuel-carrying tubes being 5 to 30 cm. Each fuel-carrying tube is surrounded by a steam-carrying tube, which at its orifice end has a supply line ... | 11/25/2003 |
| 6568426 | Pressurized water supply systems A pump assembly for a pressurized water system includes a pressure sensitive switch (27) arranged to monitor the water pressure in a pipe (14) extending between a water delivery pump (13) and a tap (15), the switch (27) controlling operation of the pump (... | 05/27/2003 |
| 6308895 | Gas-flow control valve for a heating appliance Gas flow regulation valve (1) for a heater appliance, comprising a valve body (2) with two axial valves (7,9) arranged in series, whose valve sealing members (7',8') are the lift type by means of a central valve stem (10), whose forward movement (e) is ac... | 10/30/2001 |
| 6182944 | System for connecting valve units for gas water-heaters to tanks belonging to the water-heaters In the system described for connecting a valve unit for gas water-heaters to a tank of the water-heater, a probe belonging to the valve unit is housed in the tank in a leaktight manner. The system comprises a first element belonging to the valve unit and/... | 02/06/2001 |
| 5967766 | Heater control system and methods of making A heater control system, parts therefor, and methods of making them are disclosed. The heater control system includes a fuel control unit having a thermocouple operated unit in the housing thereof, which has an opening therein leading to the thermocouple ... | 10/19/1999 |
| 5620016 | Fuel control device, parts therefor and methods of making the same A fuel control device, parts therefor and methods of making the same are provided, the control device comprising a housing having a shank portion for interconnecting with a spud carried by a hot water tank construction, the shank portion comprising a flan... | 04/15/1997 |
| 5348037 | Hot water tank construction, parts therefor and methods of making the same A hot water tank construction, parts therefor and methods of making the same are provided, the hot water tank construction comprising a hot water tank having a wall provided with an opening therethrough and a spud carried by the wall and having an opening... | 09/20/1994 |
| 5261438 | Hot water tank construction, parts therefor and methods of making the same A hot water tank construction, parts therefor and methods of making the same are provided, the hot water tank construction comprising a hot water tank having a wall provided with an opening therethrough and a spud carried by the wall and having an opening... | 11/16/1993 |
| 4622135 | Grease filtering apparatus An oil filtering machine for filtering the hot cooking oil in the cooking vessel of a deep fryer unit when the deep fryer unit is in normal use. The machine includes an oil filtering unit, a motor driven pump and a liquid circulating system in which the p... | 11/11/1986 |
| 4483364 | Heater for ultra high pressure compressed gas A pneumatic power supply for use in powering servo controls and actuators s a filament wound composite and aluminum ultra-high pressure vessel containing helium within which there is mounted an internal pyrotechnic heat generating element to provide therm... | 11/20/1984 |
| 4236548 | Apparatus for providing instant hot water A control system for providing instant hot water at a hot water tap comprising a control unit adapted to be interposed in the fluid line between the source of water supply and the hot water tap. A heating unit is also interposed in the fluid line between ... | 12/02/1980 |
| 4217924 | Cleaning system having steam and water mixing ejector A venturi-type ejector for delivering cleaning liquid to an article to be cleaned and having cold and hot liquid inlets; a high pressure pump for delivering cold liquid to the cold liquid inlet; a boiler for heating liquid and having an outlet for connect... | 08/19/1980 |
