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 |
| 7390182 | Rotor structure of pneumatic tool A rotor structure of pneumatic grinder, including a rotor main body and at least one reinforcing plate. The rotor main body is formed with a central shaft hole for a rotary shaft to pass through. Several radial projecting sections are formed on outer circumference o... | 06/24/2008 |
| 7364417 | Compression unit of orbiting vane compressor Disclosed herein is a compression unit of an orbiting vane compressor having improved tight contact between a circular vane and sealing means wherein the sealing means can be easily manufactured. The compression unit compresses refrigerant gas introduced by an orbit... | 04/29/2008 |
| 7287970 | Roots compressor A roots compressor has a housing, a rotary shaft, a rotor and a layer. The housing defines a pump chamber, a suction port and a discharge port. The suction port and the discharge port adjoin to the pump chamber. The rotary shaft is rotatably supported by the housing... | 10/30/2007 |
| 7278839 | Multi-stage vacuum pump A multi-stage vacuum pump includes a plurality of casings connected in series and each casing defining a respective compression chamber, a plurality of partition plates each set in between each two casings. When compressed by rotors at shafts in one compression cham... | 10/09/2007 |
| 7270521 | Variable capacity rotary compressor with pressure adjustment device A variable capacity rotary compressor capable of equalizing an interior pressure (i.e., discharge pressure) of a hermetically sealed container with an interior pressure of a compression chamber where an idling operation is performed, resulting in a reduction of rota... | 09/18/2007 |
| 7258535 | Sealing features for a pump and ink jet printer mounting the pump A pump is provided with a housing, a rotor, and a separating member. The housing is formed by connecting two housing members. A first housing member has a cylindrical wall and a bottom wall, and the other end of the cylindrical wall is open. A second housing member ... | 08/21/2007 |
| 7128544 | Crescent seal for the cylinder of a vane motor A vane motor is modified to increase the sealing effectiveness of the gap made at the interface of the spindle and cylinder by undercutting the cylinder a predetermined amount and distance so as to increase the effectiveness of the spindle to cylinder gap and to dec... | 10/31/2006 |
| 6935851 | External gear pump with pressure fluid pre-loading External gear pump, comprising: a casing (3a, 3b) with a gear chamber (4), comprising an inlet (5) for a fluid on a low pressure side and an outlet (6) on a high pressure side and comprising axial and radial sealing s... | 08/30/2005 |
| 6887058 | Fluid machinery A fluid machinery includes a helical mechanism connected to a driving mechanism, which is driven via a crank shaft. The helical mechanism includes a cylinder defining an inner space, a roller disposed inside the cylinder so as to be rotated in an eccentric manner, t... | 05/03/2005 |
| 6273694 | Rotary-piston machine A rotary-piston machine (10) comprising a housing (5) having a cavity (9), a rotor (2) received in the housing (5), which rotor (2) having a rotor axis (A) and a peripheral surface (21), inlet and outlet passages (3, 4) in communication with said cavity (... | 08/14/2001 |
| 6164943 | Internal geared wheel pump without crescent-shaped [sickle] piece An internal geared wheel pump that does not have a crescent shaped piece. The pump has an internal geared wheel that meshes with a pinion. The pinion and geared wheel are mounted in a rotatable manner in a housing that has a suction connection and a press... | 12/26/2000 |
| 6126422 | Tip seal for scroll type compressor and manufacturing method therefor A single piece tip seal for use in scroll compressors is produced using a polyetheretherkeytone base material injected into a mold having two ingates to the mold cavity.... | 10/03/2000 |
| 6071106 | Hydraulic vane machine Hydraulic vane machine with a rotor having several radially movable vanes, and with a stator having a stator bore, in which the rotor is arranged rotatably, and whose internal wall is made as a guiding contour on which the vanes bear, and with a sideplate... | 06/06/2000 |
| 5810574 | Power plant The proposed power unit of the rotary-piston type, for example an internal combustion engine, compressor or pump, has a stator and a rotor designed in such a way as to allow a number of variable-volume working chambers to be created in the stator when the... | 09/22/1998 |
| 5399079 | Sickleless internal gear pump with sealing elements inserted in the tooth heads The invention is directed to a sickleless internal gear pump including an internal ring gear and a pinion meshing with the ring gear. The internal ring gear and pinion having a common width and a plurality of teeth extending across the width. Each tooth h... | 03/21/1995 |
| 5364249 | Rotary steam engine having rotor side plates A rotary steam engine has a working chamber (14), with first and second cylindrical rotors (1,2) mounted in overlapping cylindrical chamber portions (26, 27) for rotation about respective parallel axes (24, 25), connected by gears (18) for synchronized ro... | 11/15/1994 |
| 5161961 | Gear pump with counterbalanced radial forces and two piece radial seals By using multiple external gears and internal gears, which are engaged with each other, and multiple radial sealing elements and axial sealing elements, a pump or motor, which includes multiple equivalent pumps or motors, is made. Each gear included in th... | 11/10/1992 |
| 5122041 | Scroll type fluid displacement apparatus having an axially movable seal plate A scroll type fluid displacement apparatus, in particular, a compressor unit is disclosed. The apparatus includes a pair of scroll members interfitting at an angular and radial offset for forming fluid pockets, each scroll member including an end plate an... | 06/16/1992 |
| 4898524 | Fluid driven rotary motor An improved, fluid driven rotary motor of the vane type includes a housing having a rotor cover disposed between a pair of end plates, a rotor rotatably mounted in the housing and a drive shaft torsionally affixed to the rotor. In the improved rotary moto... | 02/06/1990 |
| 4657009 | Closed passage type equi-pressure combustion rotary engine A rotary engine including a compressor, an external pressure vessel, an internal pressure vessel defining a combustion chamber, and a fuel nozzle opening into the combustion chamber. Both compressed air and fuel are pumped into the fuel nozzle. Water is s... | 04/14/1987 |
| 4484872 | Globoid-worm machine with tapered screw clearance near high pressure end seal A volumetric machine comprises a screw rotatable inside a casing and cooperating with at least one pinion-wheel. The screw has a low pressure end adjacent a low pressure port and a high pressure end adjacent a high pressure port, the high pressure end bei... | 11/27/1984 |
| 4475877 | Globoid worm machine with metal ring in bearing housing A device to ensure tightness without friction and thus as reduced as possible clearance at the high pressure end of the screw. At the high pressure side of the screw, the bearing housing of the screw comprises a metal ring which is different from the meta... | 10/09/1984 |
| 4433967 | Pump impeller A centrifugal pump impeller with vanes extending radially from an elastomeric hub in the operation of which the unavoidable flexing, i.e. alternately changing angular orientation, of the vanes in the hub does not contribute to any rupture, because the hub... | 02/28/1984 |
| 3994266 | Rotary diesel engine A rotary diesel engine in which the engine has seal means providing sealing cooperation between each working face of the engine rotor and the engine housing in the region of a lobe junction of the multi-lobe profile of said housing so that during compress... | 11/30/1976 |
| 3981638 | Rotary piston machine A rotary piston machine which has a substantially annular working space, which is divided by bars or the like dividing elements into a plurality of sealed chambers, the volumes of which are periodically changed. The bars or the like dividing elements are ... | 09/21/1976 |
| 3976403 | Rotary vane fluid pressure machine This device functions as a compressor or pump when driven in rotation, and functions as an engine when driven by expansion energy. A housing encases a vane rotor mounted off center for rotation in a cylinder. The slotted rotor is constructed with vane bea... | 08/24/1976 |
