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| Number | Title | Issue Date |
| 7980264 | Slurry catalyst flow splitters and methods of using the same A system for feeding a slurry catalyst composition including: a primary slurry feed system comprising a primary slurry flow meter and a primary catalyst injection device, wherein the primary slurry flow meter measures a primary slurry catalyst composition flow rate ... | 07/19/2011 |
| 7415820 | Hybrid powertrain with valve assembly for dual pumps A powertrain includes a first pump and a second pump. A conduit defines a passageway for providing hydraulic pressure from the first pump or the second pump to a transmission. A valve assembly is configured to selectively supply hydraulic pressure to the passageway ... | 08/26/2008 |
| 7354511 | Hydraulic unit for industrial trucks A hydraulic unit for industrial trucks, comprising a motor pump unit which is directly attached to a tank, a reflux filter which has an elongate filter casing for a filtering element adapted to be introduced into the tank through an opening, a hose coupling, and an ... | 04/08/2008 |
| 7328188 | Dynamic currency conversion for card payment systems The present invention relates to Card Payment Systems for use in a multi-currency environment. In particular, the present invention provides a system and method for identifying an appropriate currency for individual transactions conducted using a card payment system... | 02/05/2008 |
| 7310852 | Valve assembly The invention relates to a valve assembly for use in connection with carpet cleaning extraction machines and similar extraction cleaning devices. The invention allows the intake of liquid and the mixing of different liquids in a mixing chamber, such as clean water w... | 12/25/2007 |
| 7291194 | Intermittent mixer with low pressure drop A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric fil... | 11/06/2007 |
| 7288128 | Intermittent mixer with low pressure drop A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric fil... | 10/30/2007 |
| 7284565 | Fluid flow regulator for swimming pool cleaning system A fluid flow regulator useful with swimming pool suction cleaners includes a flow passage conduit for connection between a suction pump and the pool cleaner. A flow bypass conduit is connected to the flow passage conduit for injecting an ambient fluid into a bypass ... | 10/23/2007 |
| 7270141 | Methods and systems for controlling viscosity in real time Systems and methods are disclosed for controlling a viscosity of a fluid. The control system includes a controller controlling an input to an actuator and an observer estimating the viscosity of the fluid. The controller includes an input, and the actuator is capabl... | 09/18/2007 |
| 7270749 | Pump system A pumping system comprising: (a) an inlet adapted for connection with a supply of low pressure water; (b) a filtration unit in fluid communication with the inlet, wherein the filtration unit filters impurities from the low pressure water so as to discharge a flow of... | 09/18/2007 |
| 7216681 | Gravity feed ball-in-seat valve with extension unit for dosing fuel additives A simple, reliable system is provided for automatically dosing vehicle fuel tanks with a fuel additive, particularly a concentrate containing a fuel borne catalyst (FBC), using gravity as the means of injection, preferably with no electronics or complex mechanical p... | 05/15/2007 |
| 7210343 | Method and apparatus for obtaining a micro sample downhole The present invention provides a downhole sample tank and a plurality of micro sample chambers. The micro sample chambers can have at least one window for introduction of visible, near-infrared (NIR), mid-infrared (MIR) and other electromagnetic energy into the tank... | 05/01/2007 |
| 7201181 | Mixing valve A mixing valve for mixing steam and water comprising an inlet chamber for steam, an inlet chamber for water, and a mixing chamber for mixing the steam and the water. The mixing chamber has at least one outlet connected thereto. A valve member arranged in the steam i... | 04/10/2007 |
| 7195028 | Self-contained oxygen generator A self-contained oxygen generator containing a PSA unit and a flowmeter in the outlet line. The flowmeter provides a signal which represents the flow rate of the oxygen in the outlet line. A leakage circuit with a calibrated orifice and a solenoid valve are also loc... | 03/27/2007 |
| 7185669 | Proportioner There is provided a proportioner for the internal admixture, at a constant proportioning ratio, of an inflowing liquid additive to a liquid carrier, the proportioner including a first flow-attenuating means, and a second flow-attenuating means, wherein the first and... | 03/06/2007 |
| 7182071 | Device for fuel transfer in combustion engines Fuel for an engine is supplied from a first fuel tank. Return fuel from the engine is gathered in a second fuel tank for resupply to the engine. The second fuel tank is connected to and replenishable from the first fuel tank. The engine receives all its fuel from th... | 02/27/2007 |
| 7175932 | Fuel cell system A fuel cell system in which fuel is supplied to a fuel cell arrangement and/or a reformer by an injector, where the anode exhaust gas of the fuel cell arrangement is recirculated to the injector. The fuel cell arrangement is connected to an intake opening of the inj... | 02/13/2007 |
| 7140552 | System for automatic self-proportioning of foam concentrate into fire fighting fluid variable flow conduit A fire fighting nozzle for extinguishing industrial scale fires including improved automatic pressure regulating features, enhanced educting features including central and peripheral channeling for foam concentrate, and combining with a capacity to throw dry chemica... | 11/28/2006 |
| 7066882 | System, method and apparatus for regulating vacuum supplied to surgical tools A system, method and apparatus for regulating vacuum applied to surgical suction devices allowing the use of a single vacuum regulator and associated canister to provide vacuum to two suction devices, such as a suction stabilizer and a suction retractor. Vacuum cont... | 06/27/2006 |
| 7066175 | Portable gas powered positive pressure breathing apparatus and method A portable positive pressure breathing apparatus includes a demand valve with a supply inlet port adapted to be connected to a pressurized source of oxygen and an outlet port adapted to be connected to the inlet of a patient's breathing appliance. The demand valve f... | 06/27/2006 |
| 7032609 | Vacuum feed system for liquid chemical feeding A vacuum feed system for feeding liquid chemical into a stream of a second liquid flowing in a conduit includes a venturi connected in the conduit for supplying vacuum through first and second one-way check valves, a flow regulating valve, and a vacuum regulated flo... | 04/25/2006 |
| 7028671 | Fuel return systems A fuel return system for returning fuel from a fuel pump to first and second fuel tanks in an automotive vehicle includes an open T fitting having branches connected through couplings to the first and second fuel tanks. The couplings each have a low return, fuel flo... | 04/18/2006 |
| 6935357 | Fluid supply failure protection valve A water supply failure protection valve is connected to hot and cold water supplies. The failure protection valve is responsive to the loss of cold water supply pressure to shut off all water flow. The failure protection valve is responsive to the loss of hot water ... | 08/30/2005 |
| 6935813 | Control mechanism, an installation and a method for transporting bulk material, granular material or powdery material through a conveyor line A control mechanism (20; 70) and a method for use in an installation for transporting bulk material, granular material or powdery material through a conveyor line (1) with the aid of a pressurized gaseous medium. The control mechanism (20; 70) i... | 08/30/2005 |
| 6913166 | Apparatus for dispensing liquids and solids A system for metering and dispensing single and plural component liquids and solids as described herein. The dispensing system has a microprocessor-based control system and progressive cavity pumps which provide a very accurate control of component ratios, shot size... | 07/05/2005 |
| 6913637 | Air purifier An air purifier includes a main body defining an air passage therein to allow sucked air to pass therethrough prior to being discharged, and a first filter installed in the main body to be switched between a closed state and an open state. The first filter removes c... | 07/05/2005 |
| 6910341 | Temperature control apparatus and method of operating the same A temperature control unit and a method of operating a temperature control unit. The temperature control unit including a refrigeration circuit enclosing a refrigerant and having a compressor, a condenser, and an evaporator coil. The method including providing a fir... | 06/28/2005 |
| 6837047 | Hydraulic devices for smooth operations of hydrostatic transmission A hydraulic valve assembly, for use in a hydrostatic transmission, for controlling fluid transfer between a first, a second and a third line, wherein two of the lines define first and second pressure lines, within a closed-loop circuit. The valve assembly comprises:... | 01/04/2005 |
| 6763846 | Fluid distribution device An apparatus and method for distributing a fluid. A fluid distribution device includes a flow chamber comprising an inlet and an outlet, an equalization chamber; and a diaphragm separating the flow chamber and the equalization chamber, wherein a valve positioned in ... | 07/20/2004 |
| 6706438 | Fluid supply device for fuel cell The ejector includes a diffuser, a nozzle, a needle, and a drive section. A throat portion and an increasing diameter portion are formed in a third conduit of the diffuser, and the nozzle and the needle are arranged coaxially with the third conduit. A first taper se... | 03/16/2004 |
| 6601602 | Pressure-control valve A pressure-control valve (1) comprises a first control piston (1), which is disposed between a first pressure chamber (6), which adjoins the first control piston (1) and is connected to at least one working line (A, B), and a second pressure chamber (7), ... | 08/05/2003 |
| 6591863 | Adjustable pool safety valve A safety valve for swimming pools that senses and then instantly relieves excessively high vacuum levels in the pool's drain line. Such high vacuum levels occur when an individual becomes trapped by the suction at the pool's drain port which is connected ... | 07/15/2003 |
| 6583525 | Viscosity regulating valve The subject invention is a valve for regulating the viscosity of fluid utilized by an integrated drive generator (IDG). The valve includes a housing defining a bore having a first inlet supplying "cold" hydraulic fluid at a first viscosity and a second in... | 06/24/2003 |
| 6484743 | Flow control assembly Assemblies for control of fluid flow are described. The assemblies permit angular adjustment of resilient biasing mechanisms through translation of one of their ends along the assembly exteriors. Although the resilient mechanisms normally facilitate cover... | 11/26/2002 |
| 6355160 | Gray-water recycling system A gray-water recycling system for reclaiming gray-water for use in toilets and lawn care. The system includes a reservoir adapted to treat gray-water and includes an intake pipe, an outlet pipe and an overflow pipe. An inlet coupled to the intake pipe sup... | 03/12/2002 |
| 6349738 | Apparatus for separating particles from a fluid flow and a valve for introducing bled fluid to a mainstream fluid A bleed valve for introducing bled fluid to a mainstream fluid flowing through apparatus across which a pressure differential occurs, characterized in that the bleed valve is adapted to open so as to bleed fluid into the mainstream fluid when the pressure... | 02/26/2002 |
| 6321772 | Vacuum pressure-adjusting apparatus The air (atmospheric air) is introduced from an atmospheric port, and it is throttled to give a minute amount by means of a bleed hole. The air is introduced into a vacuum chamber via a bleed passage, and it is introduced into a pressure regulator port vi... | 11/27/2001 |
| 6314983 | Flow controller for a pool cleaner A flow controller is provided for use with a pool cleaner, particularly of the type powered by a suction or vacuum source via a flexible vacuum hose or the like connected to the suction side of conventional pool water filtration equipment, wherein the flo... | 11/13/2001 |
| 6308724 | Low capacity chlorine gas feed system A switchover device for providing a continuous supply of a gas such as chlorine to a water system. The switchover device includes an outlet in communication with a chamber as well as with a vacuum source and two inlets also in communication with the chamb... | 10/30/2001 |
| 6289918 | Automatic locking bypass valve for liquid suction systems An automatically-locking bypass valve (10) of the type including a valve body (12), an inner member (11) in sliding engagement with the valve body (12) and having a bypass opening (48), the valve body (12) and inner member (11) having first and second vac... | 09/18/2001 |
