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| Number | Title | Issue Date |
| 8016570 | Gas compressor with drier and radio emission controls A gas compressor unit according to the invention includes a single gas desiccant bed and condenser (which is inactive during the compression stage) inserted into the gas flow path of the compression cycle. In the case of a multistage compressor, the single gas desic... | 09/13/2011 |
| 7346950 | Inflatable product provided with electric air pump An inflatable product includes a first chamber, a pack, and a fan and motor received in the pack. The pack has an air intake connected to the outside of the first chamber and a first air outlet connected to the inside of the first chamber. A first valve for opening ... | 03/25/2008 |
| 7313837 | Inflatable product provided with electric air pump An inflatable product that includes a chamber and an electric air pump for inflating the chamber. The air pump has an air intake and an air outlet. The air intake is connected to the outside of the chamber and the air outlet is connected to the inside of the chamber... | 01/01/2008 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| 7260499 | Fuel delivery system with enhanced functionality and diagnostic capability A control system for a fuel delivery system provides enhanced functionality and diagnostic capabilities relative to known systems. In accordance with one aspect of the invention, enhanced functionality and diagnostic capability is provided by integrating the pump co... | 08/21/2007 |
| 7252486 | Hand-operated inflator A hand-operated inflator with dual cylinder is provided. Once the cylinders are pulled out on two sides of the central block to form a line axially, and a clamp plate at mid point in between the two cylinders is turned to the transversal position to lock the cylinde... | 08/07/2007 |
| 7249556 | Compressor with fortified piston channel A compressor is disclosed generally comprising a cylinder head mounted to a cylinder block having a cooling chamber and a piston channel via a bolt. A piston is disposed in the piston channel and has a contact portion that contacts the channel wall, which is integra... | 07/31/2007 |
| 7178336 | Pump A hydraulic pump apparatus having an internal sump formed by a housing having an internal portion and an end cap secured to the housing. A rotatable cylinder block is located in the sump and driven by an input shaft extending into the housing. The pump apparatus als... | 02/20/2007 |
| 7159412 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 01/09/2007 |
| 7150582 | Form for street box in underground storage tank installation A form suitable for use in an underground storage tank installation includes an upper portion sized and shaped to receive a street box and a lower portion that fits over and surrounds an upper portion of a riser on the tank. In preferred embodiments, the riser acts ... | 12/19/2006 |
| 7144228 | Cryogenic fluid delivery system A cryogenic fluid delivery system includes a pump having a pumping cylinder within which a sliding pumping piston is positioned. The pump also includes an actuating cylinder within which a sliding actuating piston is positioned and a supplemental linear actuator, su... | 12/05/2006 |
| 7120955 | Inflatable product provided with electric air pump An inflatable product that includes a chamber and an electric air pump for inflating the chamber. The air pump has an air intake and an air outlet. The air intake is connected to the outside of the chamber and the air outlet is connected to the inside of the chamber... | 10/17/2006 |
| 7083390 | Fan with enhanced operational versatility An electric fan with more than one operational configuration is disclosed, comprising a fan unit, a first support element and a second support element. In one operational configuration, the fan unit rests on top of the first support element and generates a horizonta... | 08/01/2006 |
| 7073346 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 07/11/2006 |
| 7063521 | Collapsible handgrip for inflator An inflator includes a hollow handgrip and an air cylinder having a shaft. One end of the shaft is connected with a piston in the cylinder and the other end of the shaft is provided with a stud extending out of the cylinder. A bottom wall and an opening are arranged... | 06/20/2006 |
| 7063516 | One-way valve A double diaphragm pump including an air manifold, two air chambers to either side of the air manifold, two pump chambers to either side of the air chambers and diaphragms extending between the air chambers and pump chambers are stacked together in horizontal assemb... | 06/20/2006 |
| 7059366 | Air bleed mechanism for a submersible turbine pump A manifold for a submersible turbine pump having an air bleed mechanism for removing air from a discharge chamber of the manifold. The manifold includes the discharge chamber that receives fuel pumped from an underground storage tank (UST), the air bleed mechanism, ... | 06/13/2006 |
| 6974054 | Service station leak detection with recovery system A fueling environment distributes fuel from a fuel supply to fuel dispensers in a daisy chain arrangement with a double-walled piping system. Fuel leaks that occur within the double-walled piping system are returned to the underground storage tank or a sump proximat... | 12/13/2005 |
| 6962269 | Service station leak detection and recovery system A fueling environment that distributes fuel from a fuel supply to fuel dispensers in a daisy chain arrangement with a double walled piping system. Fuel leaks that occur within the double walled piping system are returned to the underground storage tank by the outer ... | 11/08/2005 |
| 6942448 | Pump A centrifugal pump is provided for use with fluids, gases, and solids in connection with a drive shaft and a motor. The pump has a housing and a sloped impeller mounted on the shaft within the housing. The housing has opposing inlets on each side of the impeller and... | 09/13/2005 |
| 6935845 | Plurality of vacuum generation units A plurality of vacuum producing units capable of being employed together or independently of each other, each have a housing. The housing is internally provided with at least one ejector receiving means fitted with an ejector insert. The housings have the same trans... | 08/30/2005 |
| 6935161 | Service station leak detection and recovery system A fueling environment distributes fuel from a fuel supply to fuel dispensers in a daisy chain arrangement with a double-walled piping system. Fuel leaks that occur within the double-walled piping system are returned to the underground storage tank or a sump proximat... | 08/30/2005 |
| 6904883 | Modular internal combustion engines A line of small internal combustion engines, including twin cylinder engines and single cylinder engines. The engines each include a crankcase, and one or more cylinder members attached to the crankcase, the cylinder members being separate components from the crankc... | 06/14/2005 |
| 6793469 | Inflatable product equipped with pump An inflatable product includes an inflatable body, a socket, an electric pump, at least one battery and a connector. The socket is built in the inflatable body. The electric pump is connected to the socket to pump the inflatable body. The battery is disposed in the ... | 09/21/2004 |
| 6736619 | Air pump with rotatable discharge tube A foldable pump includes a cylinder, a first connector in communication with the cylinder, a second connector pivotally connected and communicated with the first connector, a tube in communication with the second connector and a nozzle in communication with the tube... | 05/18/2004 |
| 6638028 | Stovetop blower apparatus for preventing boil over A blower apparatus for preventing pots being used to heat liquid from boiling over. The blower apparatus includes a blower housing having an outlet nozzle; a blower assembly positioned in the blower housing for pushing a stream of air out of the housing t... | 10/28/2003 |
| 6502394 | Pump A symmetric pump having a symmetric end cap attached to a symmetric housing is disclosed. The end cap is attachable in a first position or a second position wherein the second position is rotated relative to the housing. A trunnion arm extends in a first ... | 01/07/2003 |
| 6461117 | Reversible volume oil pump A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the input drive. The f... | 10/08/2002 |
| 6345958 | Pressure adjusting device for engine cooling system A pressure adjusting device has a pumping device, a connector device, and a connection pipe connected to the pumping device and the connector device. The pumping device has a hollow cylinder, a plunger device inserted through the hollow cylinder, a cover ... | 02/12/2002 |
| 6318967 | Gas compression kit and method with interchangeable compression cylinders A gas compression apparatus and method according to which a compression cylinder is connected between two heads, and gas is introduced into at least one header and into the cylinder. A piston is reciprocated in the cylinder with a stroke corresponding to ... | 11/20/2001 |
| 6257849 | Manual air pump having selectable high pressure and high pressure modes A manual air pump includes an outer cylinder having a chamber therein, a head provided to a second end of the outer cylinder and including an outlet passage communicated with the chamber for supplying air to an object to be inflated, and an inner cylinder... | 07/10/2001 |
| 6086332 | Vane pump assembly A vane pump assembly which uses a biasing means for regulating the internal and maximal output pressure of the vane pump rather than the maximal output of the pump motor. The pump assembly includes a motor having an output drive shaft, a housing having a ... | 07/11/2000 |
| 6022198 | Twin pump with a charging pump A double pump unit including two hydraulic pumps (1, 2) having drive shafts (5, 6) arranged coaxially with one another, which shafts are coupled with one another in a force-locking manner by a coupling piece (23). The coupling piece (23) is integrated in ... | 02/08/2000 |
| 5927953 | Automobile dual purpose water pump drive apparatus An electric motor is connected via cog belt to a dual purpose pulley on the water pump of an automobile, to increase power available from the engine so that during racing maximum horsepower can be achieved. Enhanced cooling of the engine is also obtained.... | 07/27/1999 |
| 5863187 | Two position rotary reciprocating pump with liquid displacement flow adjustment A rotary reciprocating pumping apparatus is provided with a positive two position adjustment feature which allows the piston stroke to be increased to a maximum and repeatably, automatically, returned to a second calibrated dispensing position. Such rotar... | 01/26/1999 |
| 5823091 | Radial piston pump having means for selectively disabling at least one of the pumping chambers The present invention relates to a radial piston pump, and more particularly to a radial piston pump suitable for delivering liquid at a high pressure and at a volumetric output rate which can be controlled independently of the speed of rotation of the pu... | 10/20/1998 |
| 5800134 | Tandem, swash plate pump having drive force take-out mechanism A tandem, swash plate-type hydraulic pump in which a drive force transmission system for extending one or more hydraulic pumps and a structure relating to the system can be made simple and light, and one or more hydraulic pumps even when extended can be c... | 09/01/1998 |
| 5800132 | Automobile dual purpose water pump drive apparatus An electric motor is connected via cog belt to a dual purpose pulley on the water pump of an automobile, to increase power available from the engine so that during racing maximum horsepower can be achieved. Enhanced cooling of the engine is also obtained.... | 09/01/1998 |
| 5797731 | Group of full-circumferential-flow pumps and method of manufacturing the same A group of full-circumferential-flow pumps has a group of motors each comprising a main shaft, a rotor mounted on the main shaft, a stator disposed around the rotor, a cylindrical outer motor frame fitted over the stator, and an outer cylinder disposed ar... | 08/25/1998 |
| 5785507 | Evaporative cooler pump An evaporative cooler pump is modularized to readily receive pump impellers and pump volutes of different shapes and dimensions in order to optimize the evaporative cooler water pump performance. The flow of water through the pump is streamlined to improv... | 07/28/1998 |
