Bizarre Patents
Behavior Modification Wristwatch
A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.
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| Number | Title | Issue Date |
| 8123496 | Two-unit pump for liquid chromatograph with flow sensor arrangement A pump device which accurately detects a flow rate of a pump, performs real-time control of the flow rate, and thus can suppress a flow rate error caused by occurrence of pulsation. Control of a pump rotation speed by a pressure sensor has low responsiveness in a lo... | 02/28/2012 |
| 8123495 | Reciprocating positive-displacement compressors A positive-displacement reciprocating compressor comprising a “non-conventional” crank mechanism which eliminates the amount of frictional force between the wall of the piston and the wall of the cylinder, whose characteristic feature is to have a planet (20 | 02/28/2012 |
| 8025487 | Rod arm baffle apparatus An improved baffle for a pony rod arm of a two cycle reciprocating pump having a gear end containing gear oil and a fluid end channeling oilfield fluids, provides a spiral cut expanded baffle which may be expanded to be installed on a pony rod arm of the pump withou... | 09/27/2011 |
| 7690899 | Piston pump A piston pump includes a first piston pump including a first piston and a first pump chamber, a second piston pump including a second piston and a second pump chamber, the second piston operating to follow the first piston, a pressure release passage formed in commu... | 04/06/2010 |
| 7588423 | Pump for liquid chromatograph Provided is a liquid chromatograph pump system which sucks eluent from an eluent reserving container, and which feeds pressurized high pressure eluent into a column, wherein a plunger reciprocating in a cylinder is formed on its outer peripheral surface with a stepp... | 09/15/2009 |
| 7409833 | Dual mode compressor with automatic compression ratio adjustment for adapting to multiple operating conditions An apparatus and method for compressing gas refrigerant using two different compressors operated alternatively in a series or parallel mode for obtaining two different compression ratios and thereby provide efficient operation for both a relatively lower suction pre... | 08/12/2008 |
| 7393186 | Multi-stage compressor A multi-stage compressor is disclosed, which comprises: two motion converters driven by one driving shaft and converting a rotary motion to a straight-line reciprocating motion; first and second pistons (62) connected to one of the motion converters in opposi... | 07/01/2008 |
| 7350401 | Liquid feeding system This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation... | 04/01/2008 |
| 7337877 | Variable geometry resonator for acoustic control The present invention provides a resonator for attenuating acoustic vibration from an air intake passage. The resonator includes a neck, a resonator chamber, a piston-type member, and an actuator. The neck is attached between the air passage and the resonator chambe... | 03/04/2008 |
| 7318706 | Valving for multi-stage vacuum pumps A multi-stage vacuum pump comprises a first piston in a first cylinder defining a first stage pumping chamber and a second piston in a second cylinder defining a second stage pumping chamber. The pump has a spool valve between the first and second cylinders for cont... | 01/15/2008 |
| 7311502 | Method for using a hydraulic amplifier pump in ultrahigh pressure liquid chromatography A method for supplying solvent to an ultra-high pressure liquid chromatography system using a hydraulic amplifier. The hydraulic amplifier system includes a hydraulic cylinder comprising a primary piston chamber in which a primary piston is disposed and a secondary ... | 12/25/2007 |
| 7244107 | Home oxygen-compression apparatus An oxygen-compression apparatus has a driving device, multiple rotating wheels, multiple driving rings, multiple rocking cylinders and multiple connecting hoses. The driving device has a driving shaft with a central axis. The rotating wheels are eccentrically attach... | 07/17/2007 |
| 7243499 | Refrigeration capillary tube inside suction line assembly A refrigeration capillary tube inside suction tube heat exchanger assembly, including a suction tube whose ends each have a slot with a shaped inner end portion; two braze connectors, each including a sleeve portion with the free end having a shaped recess; a capill... | 07/17/2007 |
| 7242118 | Toroidal-coil linear stepping motor, toroidal-coil linear reciprocating motor, cylinder compressor and cylinder pump using these motors A toroidal-coil multi-phase linear stepping motor includes a cylindrical housing, an axis coaxially arranged inside the housing, a cylindrical element supported by the axis and an armature fixed to the housing around the cylindrical element through an air gap in the... | 07/10/2007 |
| 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 |
| 7189320 | Pump, pump for liquid chromatography, and liquid chromatography apparatus The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate and in discharging bubbles at startup. In a pump for liquid chromatography including a cylinder and a plunger that reciprocates in the cyl... | 03/13/2007 |
| 7093450 | Method for operating a compressor In a method of operating a compressor, a gaseous medium is compressed in a first compressor stage. The partially compressed medium is sent from the first compressor stage into an intermediate cooler where it is cooled before being directed into the second compressor... | 08/22/2006 |
| 7083395 | Pump system for pumping liquefied gases Under one aspect of the present invention, a liquefied gas pump assembly is coupleable to a source of liquefied gas. A cooling assembly is positioned generally adjacent to a pump module. The cooling assembly has a converging pump-head-receiving aperture, a fluid inl... | 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 |
| 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 |
| 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 |
| 7052250 | Reciprocating compressor A reciprocating compressor, being small-sized and compact, for compressing hydrogen gas to be used in a fuel-cell car, has a crankshaft, to which an end of a connecting rod is connected. The other end of the connecting rod is connected to a crosshead. To the crosshe... | 05/30/2006 |
| 7036346 | Apparatus for exposing a pipeline to high internal pressure An apparatus for exposing a pipeline to a high internal pressure of the order of 1000 to 15000 bar, having at least a first, substantially stationary receiving device for a first end of the pipeline and a second receiving device for a second end of the pipeline, whe... | 05/02/2006 |
| 7004734 | Reciprocating refrigerant compressor An inlet port 15 is divided into a plurality of holes 15a, 15b, 15c, 15 by ribs 61a, 61b, 61c. For example, when liquid refrigerant is compressed within a compression c... | 02/28/2006 |
| 6957872 | Integrated pre-charge for controlled brake systems First and second pumps are integral in that the pumps are driven by a common motor. The first pump is driven in pumping motion by an eccentric disposed on the motor shaft and the second pump is driven in pumping motion by an end of the motor shaft. The first pump ca... | 10/25/2005 |
| 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 |
| 6846164 | Multi-cylinder compressor having plural intake ports in a bearing plate and a cover member forming a sealed space over the bearing plate The purpose of the present invention is to provide a multi-cylinder compressor permitting to increase a gas inflow into the housing without enlarging the intake ports of the bearing plate. The bearing plate 12 bearing the crankshaft 9 is provided with ... | 01/25/2005 |
| 6692236 | Two-stage compressor with torque reducing crankshaft The two cylinder and piston systems (1, 3), operating in series, are driven by a crankshaft, with a minimum or even zero phase difference.... | 02/17/2004 |
| 6666659 | Flywheel attachment for a compressor motor A reciprocating compressor provided with a plurality of gas compression means having a cylinder and a piston. The piston of each gas compression means is cooperated with the compressor by converting a rotating motion of a crankshaft provides on an electri... | 12/23/2003 |
| 6632074 | Pressure setting means for a multistage type piston compressor A multistage piston compressor includes a case and a suction chamber and a discharge chamber provided in the case. A rotary shaft is supported in the case. A valve plate provided in the case includes suction ports and discharge ports. A plurality of bores... | 10/14/2003 |
| 6589024 | Reciprocating compressor A reciprocating compressor provided with a plurality of gas compression means having a cylinder and a piston, the piston of each gas compression means is cooperated with the, compressor by converting a rotating motion of a crankshaft provided on an electr... | 07/08/2003 |
| 6558128 | Fluid well pumping system A fluid pumping system includes a number of stages. Each stage has a fluid chamber having a top end with an air aperture and a bottom end with a fluid apertures. An air line is connected to the air aperture, and a fluid input conduit, with an input check ... | 05/06/2003 |
| 6558135 | Two stage oil free air compressor A two stage reciprocating piston oil free air compressor having an improved service interval. In a first stage, a first wobble piston is reciprocated in a first cylinder to compress ambient air to an intermediate pressure. In a second stage a second wobbl... | 05/06/2003 |
| 6454548 | Low power electromagnetic pump An electromagnetic pump including a housing having an interior fluid containing region, a check valve operatively flow in a direction from an inlet toward an outlet and blocking fluid flow in a direction from the outlet to the inlet, an electromagnet carr... | 09/24/2002 |
| 6435838 | Fluid well pump A fluid pumping system includes a number of stages. Each stage has a fluid chamber having a top end with an air aperture and a bottom end with a fluid apertures. An air line is connected to the air aperture, and a fluid input conduit, with an input check ... | 08/20/2002 |
| 6394762 | Fuel pump A fuel pump comprising a first pumping plunger reciprocable within a first bore and defining, with the first bore, a first pumping chamber. A second pumping plunger is reciprocable within a second bore and defines, with the second bore, a second pumping c... | 05/28/2002 |
| 6183211 | Two stage oil free air compressor A two stage reciprocating piston oil free air compressor having an improved service interval. In a first stage, a first wobble piston is reciprocated in a first cylinder to compress ambient air to an intermediate pressure. In a second stage a second wobbl... | 02/06/2001 |
| 6171070 | High-pressure reciprocating pumps A high-pressure reciprocating pump is constructed such that a plurality of plungers connected to a driver are made to move back and forth and intake channels or discharge channels are opened and closed by valves in synchronism with movements of the plunge... | 01/09/2001 |
| 6079797 | Dual action ball screw pump A ball screw pump assembly includes a pump body having an axial bore defining a travel chamber and a pressure chamber. An input port and an output port are formed in the pressure chamber. A ball screw is provided in the travel chamber. A piston is connect... | 06/27/2000 |
| 6065816 | Brake control apparatus for a vehicle A brake control apparatus includes a reservoir tank, a master cylinder fluidly connected to the reservoir tank, a wheel cylinder fluidly connected to the master cylinder via a main passage. An auxiliary passage communicates the reservoir tank with the mai... | 05/23/2000 |
