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| Number | Title | Issue Date |
| 7207318 | Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuel A method for operating a converter for the energy conversion of fuel from at least one main fuel supply, and from at least one auxiliary fuel supply for operating the converter directly and/or by operating an auxiliary unit, comprises: detecting the amount of fuel i... | 04/24/2007 |
| 7055543 | Solenoid actuated control for fuel distribution in a dual fuel tank vehicle A vehicle chassis with at least two fuel tanks with an engine engaged to the chassis structural member. Each of the fuel tanks has fuel level detector or sender. The level senders are engaged to an electronic controller. Each of the tanks has fuel draw line from it.... | 06/06/2006 |
| 6792966 | Fuel transfer pump and control A fuel transfer apparatus for providing fuel to a vehicle engine from a plurality of fuel tanks. A transfer pump is positioned intermediate a pair of fuel tanks and is operable to transfer fuel therebetween. Fuel is provided to the engine from a first one of the two... | 09/21/2004 |
| 6782908 | Automotive washer system utilizing a freezable washer liquid and a freeze-resistant washer liquid A washer system which includes a first reservoir containing a freezable washer liquid and having a drain port therein. The drain port is in fluid communication with the freezable washer liquid when the first reservoir is in at least a full state. The washer system a... | 08/31/2004 |
| 6684902 | Dual sensor liquid accumulator An accumulator for collecting a volume of a liquid, which includes controls to permit the liquid to rise in a container to a preset upper level, at which level a drain valve is opened causing liquid to flow out of the accumulator. The accumulator utilizes... | 02/03/2004 |
| 6675795 | Freeze resistant method for draining furnace condensate in low temperature environments A freeze resistant method for draining liquid condensate from a condensate furnace includes quickly purging the liquid condensate from a condensate reservoir. A condensing heat exchanger connected to a condensing reservoir stores liquid condensate as the ... | 01/13/2004 |
| 6554021 | Apparatus for shock-like flushing in a liquid system Apparatus for shock-like flushing in a liquid system, comprising an accumulating or blocking element (11, 12, 13) which upon supply of liquid from an inlet (7) is adapted to be set from a normal position to a flushing position accummulated liquid flows th... | 04/29/2003 |
| 6494226 | Fuel transfer pump and control A fuel transfer apparatus for providing fuel to a vehicle engine from a plurality of fuel tanks. A transfer pump is positioned intermediate a pair of fuel tanks and is operable to transfer fuel therebetween. Fuel is provided to the engine from a first one... | 12/17/2002 |
| 6467497 | Buffer box for use in a vacuum drainage system A buffer box for use in a vacuum drainage system. The buffer box defines a reservoir of known effective size which provides substantially consistently sized slugs of liquid which may be efficiently pulled up a vertical lift. The buffer box includes an out... | 10/22/2002 |
| 6449781 | Apparatus for flushing in a liquid system An apparatus for shock-like flushing in a fluid system, comprising an accumulating or blocking element (13) which upon supply of fluid from an inlet (2) is adapted to be set from a normal position to a flushing position where accumulated fluid flows throu... | 09/17/2002 |
| 6279593 | Electric steam trap system and method of draining condensate A proactive electronic steam trap device, system, and method of removing condensate from a steam plant is disclosed. The device ensures a controlled drainage of condensate to maintain condensate level within a control band. The basic invention comprises a... | 08/28/2001 |
| 6269831 | Precision volumetric measuring and mixing apparatus An apparatus for mixing a first liquid with at least a second liquid includes a tank having a mixing chamber to which is connected a first and a second supply line from each of a first and a second source of liquid. A gross control valve disposed in each ... | 08/07/2001 |
| 5954078 | Method and apparatus for handling liquid chemical waste A buffer tank and pre-wetting apparatus prevent a liquid chemical waste from crystalizing on the inside walls of a drain pipe that carries the waste to a waste tank. The pre-wetting apparatus includes a pre-wetting tank with an overflow pipe that leads to... | 09/21/1999 |
| 5887613 | Device for the regulation of a constant outflow from a liquid container The invention concerns a device for the regulation of a constant outflow from a liquid container, in particular from a rain reservoir, with an outflow opening for the liquid, wherein to the outflow opening is assigned a movable throttle element, which in ... | 03/30/1999 |
| 5871027 | Vacuum valve controller A vacuum valve controller for a vacuum sewer system having a suction pipe which is communicated with a vacuum system by opening a vacuum valve, and which is cut off from the vacuum system by closing the vacuum valve, so that soil water in a soil water bas... | 02/16/1999 |
| 5657784 | Control arrangement for actuating a shut-off valve and method of operation A control arrangement (10) for a shut-off valve actuable by vacuum and intended for use in vacuum waste water systems, comprising a first valve (14) which is actuated by static pressure of collected waste water, and including a chamber (56) which can be p... | 08/19/1997 |
| 5615701 | Vacuum valve control device and vacuum valve A vacuum control valve controls the removal of sewage or other liquid removed from a tank by a vacuum discharge pipe. The control valve uses the amount of liquid in the tank, the atmospheric pressure, and the vacuum pressure of the vacuum discharge pipe t... | 04/01/1997 |
| 5588458 | Vacuum valve controller for vacuum sewer system A vacuum valve controller for a vacuum sewer system including a suction pipe (12) which is communicated with a vacuum system (15) by opening a vacuum valve (14), and which is cut off from the vacuum system by closing the vacuum valve (14) is disclosed. So... | 12/31/1996 |
| 5531241 | Condensate trap and drain for systems under pressure A condensate removal device for capturing, measuring and removing condensate from a fluid system having air or gas under pressure. The device purges only condensate on demand without loss of relative pressure inherent within the system. A differential pre... | 07/02/1996 |
| 5449016 | Sewage system Sewage system comprised of a collector pipe with one or more house connections and to which collector pipe an air compressor and/or vacuum pump is connected, wherein a house connection is comprised of a collection gully with a connection for the sewer pip... | 09/12/1995 |
| 5429149 | Valve assembly A valve assembly is provided to control a flow of liquid through a drain conduit from a sink in an aircraft. When the aircraft is in an inactive condition on the ground, a fluid motor presses a main valve member lightly against a main valve seat. At this ... | 07/04/1995 |
| 5419359 | Gas and liquid backflow-preventing valve device for drains A valve device for use with a drain provided with a pipe having an entrance for collecting liquid leading to a P-trap beneath the entrance. The device comprising an open vessel, in use positioned at the entrance of the pipe, having walls and a floor defin... | 05/30/1995 |
| 5375739 | Apparatus for control of delivery of liquids In a control apparatus for measuring, mixing or regulating one or more liquids in some other way, the liquid or liquids is/are delivered to a vessel (1) through delivery pipes (3, 4). The vessel includes a container (2) having a spillway (8). Liquid which... | 12/27/1994 |
| 5259427 | Package system for collection-transport of waste liquids An integral, vacuum operated, package system for collecting and transporting waste liquids from, e.g., a defrosted freezer, sink, bathtub, or water fountain, to a vacuum transport conduit connected to a vacuum collection station. The package system prefer... | 11/09/1993 |
| 5207251 | Liquid level sensing method and apparatus An automated liquid holding tank and method for automatically filling a liquid holding tank. The tank comprises a holding tank with dispensers for filling the tank with liquids and a pressure sensor attached to the tank for measuring the liquid level with... | 05/04/1993 |
| 5069243 | Liquid level control system A liquid level valve control system includes pressure responsive means compring a first chamber containing a first diaphragm having a port for applying pressure; bleed means enabling air to pass this diaphragm; and passageway means enabling air then to pa... | 12/03/1991 |
| 5048558 | Valve seat and method of repair A valve seat for a valve used with a treater tank comprising a body having a generally cylindrical bore threthrough, the body having a first end, a second end and being made of metal, the first end having a counterbore concentric with the cylindrical bore... | 09/17/1991 |
| 4870986 | Dispensing system A system is disclosed for dispensing a liquid at a desired temperature from a hot liquid pressure line and a cold liquid pressure line to a plurality of liquid outlets such as a bathtub, a sink or the like. The system controls the temperature of the liqui... | 10/03/1989 |
| 4345618 | Arrangement for the regulation of the height of a liquid level Arrangement for the regulation of the height of a liquid level, such arrangement being particularly suitable for the removal of condensate from the regeneration heaters of steam turbines. The arrangement includes a transmitter nozzle for forming a gas-liq... | 08/24/1982 |
| 4321948 | Discharge system for septic tank A discharge system for a septic tank is disclosed which has a dump valve means at the outlet thereof for controlling the discharge of effluent. Leading from the dump valve is a central pipe that then has a plurality of smaller pipes interconnected therewi... | 03/30/1982 |
| 4285359 | Interface unit for vacuum sewers An interface unit connects an accumulation enclosure for a gravity feed conduit to a vacuum sewage conduit. The unit has an enclosure extension extending upwardly and having a top end near ground level. A vacuum conduit extension extends downwardly within... | 08/25/1981 |
| 4257437 | Liquid flow control A method and apparatus to control the flow of liquid through a valve, especially at very low levels down to about 0.5 ml/hour, by monitoring the liquid level in a column of liquid using a sensor, for example a photo-electric cell, which is moved along the... | 03/24/1981 |
| 4202367 | Circuit arrangement for regulating the level of liquid in vessels There is disclosed a circuit arrangement for regulating the level of a liquid in vessels. The arrangement according to this invention comprises a draining vessel with a draining conduit, a fluid level pick-up device, a compensation pick-up device, and a w... | 05/13/1980 |
| 3998736 | Sewage disposal system A sewage disposal system in which sewage is permitted to accumulate to a desired level in a sump or receptacle, following which it is evacuated from the receptacle through a discharge conduit, by means of a partial vacuum transmitted through the conduit f... | 12/21/1976 |
