Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7117841 | K.Engine K. Engine (KE) is rotary internal combustion engine, combination Reciprocating Engine (RE) and Gas Turbine (GT) comprising coaxially separate piston rotary compressor and turbine having housings with annular channels, outside combustion chambers (CH) unified with ro... | 10/10/2006 |
| 7101161 | Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit An object of the present invention is to provide a method for manufacturing a multi-stage compression type rotary compressor which can avoid the replacement of parts to be used as much as possible to reduce costs and also which enables easily setting an appropriate ... | 09/05/2006 |
| 7101162 | Compressor A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element.... | 09/05/2006 |
| 7044725 | Lever-mechanism motor or pump A machine, such as an engine, which includes a cylinder (1), an essentially cylindrical piston (5) set on bearings and equipped with an eccentrically-set shaft (11), an inlet port or valve (8), an outlet port or valve (9), and a le... | 05/16/2006 |
| 6974314 | Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit An object of the present invention is to provide a method for manufacturing a multi-stage compression type rotary compressor which can avoid the replacement of parts to be used as much as possible to reduce costs and also which enables easily setting an appropriate ... | 12/13/2005 |
| 6887059 | Lever-mechanism motor or pump A machine, such as an engine, which includes a cylinder (1), an essentially cylindrical piston (5) set on bearings and equipped with an eccentrically-set shaft (11), an inlet port or valve (8), an outlet port or valve (9), and a le... | 05/03/2005 |
| 6827564 | Rotary compressor A rotary piston displacement device having an impeller housng with an approximately cylindrical receiving chamber in which an approximately cylindrical piston, which has a smaller outside diameter than and which is mounted eccentrically relative to, the receiving ch... | 12/07/2004 |
| 6824367 | Multi-stage compression type rotary compressor and a setting method of displacement volume ratio for the same A multi-stage compression type rotary compressor 10 is provided with an electrical-power element 14, the first and second rotary compression elements 32, 34 driven by a rotary shaft 16 of the electrical-power element 14 in a sealed... | 11/30/2004 |
| 6732542 | Defroster of refrigerant circuit and rotary compressor A defroster restrains a vane jump that takes place when an evaporator is defrosted in a refrigerant circuit using a so-called internal intermediate-pressure type double-stage compression rotary compressor. The defroster includes a rotary compressor that discharges a... | 05/11/2004 |
| 6322341 | Fluid pressure driven rotary actuator and method of operating the same A hydraulic rotary actuator assembly includes a rotatable drive assembly disposed about and rotatable about a longitudinal axis of the actuator and a stator assembly disposed about the rotatable drive assembly. The rotatable drive assembly includes an out... | 11/27/2001 |
| 6283728 | Gas powered rotary engine and compressor A plurality of rotary assemblies driven by gas pressure having internal cam activated retractable gates selectively coupled to a rotary compressor. The rotary compressor is selectively coupled through a clutch to a shaft. The shaft is rotated by the plura... | 09/04/2001 |
| 6280169 | Rotary machine A rotary hydraulic machine (10) for incorporation in a drill string (92) of a well formation (86). The machine (10) is particularly adapted to act as a motor and includes an outer housing (11) of a generally cylindrical configuration having a radial inner... | 08/28/2001 |
| 6168401 | Hydraulic conveying device An hydraulic conveying device, in particular for conveying diesel fuel for an internal-combustion engine in motor vehicles, with a housing provided with at least one conveying chamber as well as a displacement unit rotor arranged in the conveying chamber.... | 01/02/2001 |
| 5885065 | Method and pump for pumping liquid containing solids A pump for pumping a liquid containing solids comprises a housing having a first end and second end and an interior pump chamber. An inlet pipe leads to the pump chamber through the first end, and an outlet pipe leads from the pump chamber at the second e... | 03/23/1999 |
| 5833444 | Fluid driven motors There is disclosed a fluid driven motor of particular use, for example, in drilling apparatus or in powering underwater excavation apparatus. Known motors suffer from a number of problems, e.g. lack of sufficient hydraulic efficiency. According to one asp... | 11/10/1998 |
| 5785509 | Wellbore motor system A drilling motor has been developed with a hollow tubular stator having at least one rod recess therein and an inlet port therethrough corresponding to each of the at least one rod recess; a rod movably disposed in each of the at least one rod recess; a t... | 07/28/1998 |
| 5518379 | Downhole motor system A drilling motor has been developed with a hollow tubular stator having at least one rod recess therein and an exhaust port therethrough corresponding to each of the at least one rod recess; a rod movably disposed in each of the at least one rod recess; a... | 05/21/1996 |
| 5242280 | Rotary type multi-stage compressor with vanes biased by oil pressure A multi-stage rotary type compressor is constituted in such a manner that an electric motor and a plurality of compression elements to be driven by the electric motor are disposed in a closed container and the compression elements thus-disposed are sequen... | 09/07/1993 |
| 5242288 | Rotary engine or pump with a round toroidal cylinder and pistons An engine or pump is described which has a round cylinder in cross section, the surface of the cylinder being a round toroidal tube in the rotary direction. The cylinder is made of two equal parts, one part fixed and one part rotating with each part meeti... | 09/07/1993 |
| 4819594 | Reversible rotary internal combustion engine A reversible rotary internal combustion engine comprising a stator which defines a cylindrical chamber (43), a drive shaft (1) extending coaxially through the chamber, a rotor (2) comprising a cylindrical hub mounted coaxially on the drive shaft and a rot... | 04/11/1989 |
| 4664608 | Rotary compressor with reduced friction between vane and vane slot A hermetically sealed rotary refrigerant compressor, comprising a compression chamber, a roller eccentrically rotatable in the chamber, and a vane slidably mounted in a slot in the wall of the chamber dividing the chamber between a low pressure suction si... | 05/12/1987 |
| 4345886 | Rotary compressor with vanes in the housing and suction through the rotor A rotary compressor for compressing fluid. A housing having a cylindrical internal cavity is provided with vanes and delivery ports. A rotor is rotatably mounted in the housing. The rotor has a portion for making a sealing contact with the inner periphera... | 08/24/1982 |
| 4086042 | Rotary compressor and vane assembly therefor A rotary compressor is provided in which the space between the rotor and the encompassing housing wall is separated into suction and discharge spaces by reciprocating vane assemblies, each of which includes a blade portion having a distal end portion carr... | 04/25/1978 |
| 4009690 | Rotary internal combustion engine A rotary internal combustion engine comprising an elongated rotor having an oval shaped cross-section secured to a compartmentalized shaft rotatably disposed in an elongated cylindrical shaped bore in a stationary engine block. A plurality of vanes, havin... | 03/01/1977 |
| 3995601 | Rotary internal combustion engine A rotary internal combustion engine including a single shaft supporting two rotors recessed to form working chambers in adjacent sections of a housing with a cylindrical interior, one rotor performing the intake and compression functions and the other, th... | 12/07/1976 |
