Bizarre Patents
A hand wearable body squeegee comprising a glove portion, a concave squeegee band, and a linear squeegee band.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7850434 | Pumping arrangement A differentially pumped system comprises a plurality of pressure chambers; and a pumping arrangement (100) attached thereto for evacuating the chambers, the pumping arrangement comprising first and second compound pumps (102, 104) each comprising at le... | 12/14/2010 |
| 7811065 | Vacuum pump for differential pumping multiple chambers A differentially pumped mass spectrometer system comprises a mass spectrometer having first and second pressure chambers through which, during use, ions are conveyed along a path. A pump assembly (10) for differentially evacuating the chambers (62, 66, 68 | 10/12/2010 |
| 7401623 | Double-acting valve unit A hydraulic system includes a charge pump which supplies fluid to variable displacement main pump, a fluid reservoir and valve unit. The valve unit includes a hollow housing having a first end communicated with the reservoir and a second end communicated with the ch... | 07/22/2008 |
| 7367788 | Pump for antilock braking system in vehicle A pump including a main body having a piston provided in a portion of the main body, the piston being configured to reciprocate linearly. A piston spring may be provided within the main body and configured to bias the piston toward an end of the main body. Further, ... | 05/06/2008 |
| 7329105 | Multi-directional pump A multi-directional pump is disclosed generally comprising a housing with inlet and outlet ports, a pumping device disposed therein, a first chamber in fluid communication with the inlet port, and a second chamber in fluid communication with the first chamber. The f... | 02/12/2008 |
| 7287963 | Fast pump priming A pump priming system may include two or more pumps. In one example, a system for pump priming can include a first pump and a second pump. Each pump can have an inlet adapted for a suction force and an outlet adapted for a pressure force. The system can include a tu... | 10/30/2007 |
| 7288574 | Two-phase oxygenated solution and method of use A two-phase mixture is provided having a dissolved gas and a suspension of bubbles in a liquid. Methods for making, maintaining, and using the two-phase mixture are also provided. The gas molecules may be introduced into the liquid at a high velocity under elevated ... | 10/30/2007 |
| 7287964 | Method and system for pumping powder, and powder coating apparatus In a pump system for supplying powder, in particular coating powder, to a powder coating apparatus, time controller is used to introduce compressed gas into a metering chamber as a function of the predetermined delay time elapsed since a predetermined operational po... | 10/30/2007 |
| 7226276 | Multi-stage reciprocating vacuum pump and method of operating the same A multi-stage reciprocating vacuum pump includes first (2) and second (4) pump chambers located in the pump housing (1) and in which respective pistons (6, 8) reciprocate, first and second conduits (14, 20) for communicating, respe... | 06/05/2007 |
| 7186098 | Eccentric pump and method for operation of said pump A pump (1) is provided with a housing (2), having an inlet (28) and an outlet (29), a drive (5), a fixed cylinder (2) centered on a mid-axis (9), a displacer (18), rotating eccentrically within the cylinder ( | 03/06/2007 |
| 7163359 | Device for conveying powder and method for operating the same Transport system with several devices (1) for transporting powder, where each device (1) has a transfer chamber (3) into which a supply line (6) and a discharge line (8) for the powder open, and means to generate a negative pressur... | 01/16/2007 |
| 7156922 | Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor A multi-chamber installation (1) treats objects under vacuum. An evacuation system (5) is connected to a plurality of chambers (2, 3, 4). To reduce the complexity of the evacuation process, a forepump (5) has several stages (11, 12, 13... | 01/02/2007 |
| 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 |
| 7085626 | Method and apparatus to prevent low temperature damage using an HVAC control A heating control method is provided for a multi-stage heating system including a heating circuit having a compressor, a condenser and an evaporator. An auxiliary heater is provided that is selectively controlled independently of the heating circuit. During a heatin... | 08/01/2006 |
| 7076963 | Two-stage compressor for an automotive air conditioner, which can be driven by a vehicle running engine and an electric motor different therefrom A compressor is used in an automotive air conditioner to compress a refrigerant gas. The compressor includes a first compression mechanism driven by an automobile engine and a second compression mechanism driven by an electric motor. The first and the second compres... | 07/18/2006 |
| 7063513 | Liquid chromatograph pump with dual cylinders and dual plungers In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from changing the first volume sufficiently for feeding the liquid between... | 06/20/2006 |
| 7063785 | Pump for liquid chromatography The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate with high accuracy and in discharging bubbles at startup. At startup, a first plunger feeds solvent at a large flow rate to discharge bubb... | 06/20/2006 |
| 6997686 | Motor driven two-stage centrifugal air-conditioning compressor A two-stage compressor for generating necessary pressure differential for air-conditioning applications with air-cooled, water-cooled and evaporative-cooled condensing systems using low-pressure refrigerant, such as R134a, is provided. A rotating assembly is mounted... | 02/14/2006 |
| 6948916 | Piping layout for multiple compressor system A multiple hermetic compressor assembly comprising a first compressor and an adjacent, second compressor interconnected by a hot gas pressure discharge manifold, a suction gas pressure equalization manifold, a suction manifold and an oil equalization manifold, the m... | 09/27/2005 |
| 6929455 | Horizontal two stage rotary compressor A hermetic two stage rotary compressor having a housing with a stationary shaft fixedly mounted in the housing. A motor having a rotor and a stator is mounted in the housing with the rotor being rotatably mounted on the shaft. A pair of compression mechanisms are ro... | 08/16/2005 |
| 6916078 | Inkjet proofing with matched color and screen resolution One general aspect of the invention provides for creating half-tone ink-jet proofs on print-enhanced sheets based on an effective image cell pitch that substantially matches a cell pitch used to create press plates. Print process variables can be adjusted for the in... | 07/12/2005 |
| 6907746 | Multistage compression type rotary compressor and cooling device A multi-stage compression type rotary compressor, having a driving element and a first and a second rotary compression element that are driven by the driving element in a sealed container, is provided. The refrigerant compressed by the first rotary compression eleme... | 06/21/2005 |
| 6776588 | Dry compressing vacuum pump having a gas ballast device A dry compressing vacuum pump (1) has a continuous or graduated inner compression. A gas ballast device (8) selectively adds a ballast gas to a pumped gas. The gas ballast device has an isolating valve (11), a non-return valve (12) which ... | 08/17/2004 |
| 6638029 | Pressure ratio modulation for a two stage oil free compressor assembly A two-stage oil free compressor assembly includes a pressure modulation mechanism, which enhances the ambient temperature and altitude capability of the compressor. A selected amount of pressurized fluid is drawn from an output side of a second stage comp... | 10/28/2003 |
| 6536521 | Multi-stage liquid elevator A multi-stage liquid elevator which is assembled from individual stages is a fabricated from ordinary pipe components and has no moving parts. Each elevator stage consists of a reservoir defined by a casing enclosing an inlet pipe and an outlet pipe. A co... | 03/25/2003 |
| 6508304 | Multi-stage liquid elevator A multi-stage liquid elevator is assembled from individual stages in which each elevator stage is fabricated from ordinary pipe components and has no moving parts. When inserted into an natural gas well, the elevator is powered by the gas pressure availab... | 01/21/2003 |
| 6447262 | Pumping system for a multi-stage pump A pumping system for selectively activating the stages of a multi-stage centrifugal pump is provided. The pumping system has a first stage impeller for receiving fluid into the system and imparting rotational energy into the fluid. The system also has a s... | 09/10/2002 |
| 6371735 | Vacuum pumps A vacuum pump comprising a shaft rotatable by means of a motor, at least two spaced pump stages mounted on the shaft, a first pump inlet through which gas can pass for passage through all the pump stages for evacuating a first system and a second pump inl... | 04/16/2002 |
| 6193461 | Dual inlet vacuum pumps A high-vacuum pump includes a first vacuum pump section and a second vacuum pump section coupled in series and having an interstage region between them. The vacuum pump further includes a housing containing the first and second vacuum pump sections. The h... | 02/27/2001 |
| 6123516 | Vacuum pump A vacuum pump, comprising at least one pump chamber (7, 8, 23 to 26) and at least one chamber (3, 5, 27) adjoining the pump chamber. The vacuum pump is fitted with a gas ballast device to avoid damage being caused in the adjoining chambers by the gases be... | 09/26/2000 |
| 6113358 | Scroll compressors A method of improving the efficiency of a pair of first and second scroll refrigeration compressors, at least the second of which includes an intermediate port is characterized in that the delivery of the first scroll compressor is fed into the intermedia... | 09/05/2000 |
| 6106223 | Multistage vacuum pump with interstage inlet A vacuum pump comprising a plurality of vacuum stages and having a first pump inlet through which gas can pass through all the pump stages and a second inlet through which gas can enter the pump at an interstage location and pass only through subsequent s... | 08/22/2000 |
| 6030189 | Friction vacuum pump with intermediate inlet The invention concerns a friction vacuum pump (1) with an inlet (11), an outlet (20) and a rotor (6, 7) and stator (14, 21) which are located between the inlet (11) and the outlet (20) and carry blades (7 and 8), respectively. In order to design an interm... | 02/29/2000 |
| 5934885 | Reagent pump assembly A reagent pump assembly for metering precise volumes of fluids, such as reagent, for an analytical instrument, such as a clinical hematology or flow cytometer instrument. The assembly includes a multilayer block having a plurality of diaphragm pumps inter... | 08/10/1999 |
| 5915927 | Reciprocating pump for generating fluid pressure A plunger pump includes a piston which is driven for reciprocatory motion and associated with a check valve. A space within a cylinder is partitioned by a piston 1p into a first space A which communicates with a discharge port 1ep and a second space B whi... | 06/29/1999 |
| 5839886 | Series connected primary and booster compressors A primary compressor and a booster compressor connected in series is presented. A first conduit connects the low side of a heating/cooling or refrigeration system to the inlet of the booster compressor, the outlet of the booster compressor and the inlet o... | 11/24/1998 |
| 5733104 | Vacuum pump system A vacuum pump system for multi-stage gas inlet systems and including a pumping unit formed of a turbomolecular pump and one or several further pumps arranged downstream of the turbomolecular pump and the rotors of which are located on the same shaft as th... | 03/31/1998 |
| 5716197 | High pressure compressor with internal, inter-stage cooled compression having multiple inlets A high pressure gas compressor having an internal two staged compression with a compression chamber formed in part by a positive displacement, stepped piston and cylinder configuration, providing a first stage compression by an enlarged diameter segment o... | 02/10/1998 |
| 5547347 | Gas injection apparatus and method An apparatus and method for dispersing a gas in a liquid and for increasing gas pressure of a gas from a supply pressure to a delivery pressure. A first pump pumps the liquid to produce a pressurized liquid stream. The gas is injected into the pressurized... | 08/20/1996 |
| 5427501 | Fuel pump impeller with pump down extension A centrifugal pump for a fluid tank includes a pump housing enclosing an electric motor, a primary impeller coupled to the drive shaft of the motor, and a secondary impeller extending axially downward from the primary impeller proximate to the floor of th... | 06/27/1995 |
