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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7399171 | Rotary pump for braking device The curvature of a circular arc constituted by a side of a suction groove is made larger than that of a circular arc constituted by a side of a discharge groove. Thus, when the suction groove and the discharge groove are viewed in the axial direction of a drive shaf... | 07/15/2008 |
| 7371058 | Oil feeding propeller of scroll compressor An oil feeding propeller of a scroll compressor for preventing deterioration of oil feeding generated when a rotation shaft is rotated in reverse is disclosed. The propeller is tightly fitted into the lower side of the oil passage of the rotation shaft, sucks oil in... | 05/13/2008 |
| 7290990 | Short reverse rotation of compressor at startup In a method of operating a scroll or screw compressor at startup, the compressor is rotated in reverse for a brief period of time. The compressor is of a type that does not compress liquid when rotated in reverse. The purpose is to boil off the liquid refrigerant fr... | 11/06/2007 |
| 7150610 | Gas compressor To reduce an excessively high vane back pressure to an appropriate pressure to thereby relieve operational load, and to improve the vane projectability at the start and during low speed operation to thereby prevent chattering; There are provided back pressure spaces... | 12/19/2006 |
| 7134856 | Compressed air motor The invention relates to a compressed air motor comprising a housing and a rotor rotatably mounted therein, the rotor being provided with substantially radial slots and plate-like vanes being mounted in the slots so as to be radially displaceable by the centrifugal ... | 11/14/2006 |
| 7090476 | Rotary fluid machine A rotary fluid machine is provided in which a rotating shaft (113) fixed to a rotor (41) is rotatably supported on a fixed shaft (102) fixed to a casing (11), sliding surfaces of the fixed shaft (102) and the rotating shaft (113... | 08/15/2006 |
| 7070399 | Variable displacement pump with a suction area groove for pushing out rotor vanes A variable displacement pump has a cam ring, a rotor, a plurality of vanes, a pressure plate and a rear body. The cam ring is accommodated within a pump body. The rotor rotates within the cam ring. The plurality of vanes are inserted retractably into slits formed at... | 07/04/2006 |
| 6935854 | Gas compressor A gas compressor has a cylinder in which a refrigerant gas is compressed and a side block mounted to an end surface of the cylinder. The side block has suction holes each having a first end opening to an outer surface of the side block and a second end opening into ... | 08/30/2005 |
| 6929457 | Gas compressor A rotary vane gas compressor has a cylinder, a rotor in the cylinder, and vanes slidably disposed in radial vane grooves in the rotor to define compression chambers for intaking, compressing and discharging compressed gas during rotation of the rotor. A flat groove ... | 08/16/2005 |
| 6537045 | Rotating machine having lubricant-containing recesses on a bearing surface A rotating type machine including a first moving member having a first surface and a second member having a second surface slidably interfacing with the first surface. The first and second surfaces have relative movement therebetween, and one of the first... | 03/25/2003 |
| 6312237 | Displacement type fluid machine In a displacement type fluid machine wherein a space is formed by the inner wall surface of a cylinder and the outer wall surface of a displacer when the center of the cylinder is located on the center of the displacer, and a plurality of working chambers... | 11/06/2001 |
| 6312239 | Screw-type compressor having an axial bearing part on only one rotor A screw-type compressor comprises a housing (12) in which a primary rotor (14) and a secondary rotor (16) are arranged each of which is provided with a shaft (18,24) and a screw rotor (20,26). The secondary rotor (16) is axially supported by the primary r... | 11/06/2001 |
| 6217303 | Displacement fluid machine An orbiting fluid machine has a feature that the speed of sliding movement is low, while vibrations are small, its performance is lowered when the rotational speed becomes high, and this problem is resolved by the following structure. A displacement fluid... | 04/17/2001 |
| 6099279 | Displacement fluid machine An orbiting fluid machine has a feature that the speed of sliding movement is low, while vibrations are small, its performance is lowered when the rotational speed becomes high, and this problem is resolved by the following structure. A displacement fluid... | 08/08/2000 |
| 6048187 | Gear pump A gear pump is provided with a drive gear rotated via a drive shaft; a slave gear; a gear housing containing a gear chamber housing these gears therein; and a pump housing composed of a cylindrical housing main body with a bottom which contains the gear h... | 04/11/2000 |
| 5582020 | Chemical/mechanical system and method using two-phase/two-component compression heat pump A heat pump system and method utilizes heat of mixing, in addition to the latent heat of solution, to increase cooling ability and thermal performance. The system includes a unique two-phase compressor for compressing a two-component mixture of liquid abs... | 12/10/1996 |
| 5577903 | Rotary compressor A rotary compressor has a cylinder having a cylinder chamber formed therein, a roller fitted around an eccentric portion of a drive shaft and rotatably installed within the cylinder chamber, a blade integrally provided on the roller so as to protrude ther... | 11/26/1996 |
| 5316455 | Rotary compressor with stabilized rotor The same number of grooves 20 through 27 are provided in end surfaces 19a and 19b of a roller 19. The grooves 20 through 27 have communicating portions 20a through 27a which communicate with an inner peripheral side of the roller 19 and sealed portions 20... | 05/31/1994 |
| 5310326 | Rotary compressor with improved bore configuration and lubrication system A rotary compressor, such as a sliding vane compressor, comprises a housing having a bore, a rotor assembly operatively arranged to rotate within the bore, vanes operatively arranged at the rotor assembly to move linearly relative to the rotor assembly an... | 05/10/1994 |
| 5217361 | Fluid compressor having lubrication for two spiral blade compression sections A compressor includes a casing having an oil reservoir, a cylinder situated within the casing, a cylindrical rotary body situated eccentrically within the cylinder, the rotary body having first and second spiral grooves extending in opposite directions fr... | 06/08/1993 |
| 5178527 | Lubricating apparatus for scroll-type compressor Lubricating apparatus of a scroll-type compressor comprising a thrust bearing surface provided on a main frame, the surface including a lubricating groove thereon, an orbiting scroll performing an orbital motion under the condition of slide contacting at ... | 01/12/1993 |
| 5133651 | Scroll compressor with a fluid thrust bearing A thrust bearing of a scroll compressor to be used as a fluid compressor for a refrigeration or air conditioning unit, is designed to resist the moment exerted on the orbiting scroll member, and tending to tilt the orbiting scroll member, so as to prevent... | 07/28/1992 |
| 5030073 | Rotary compressor A rotary compressor has a compression mechanism including main and sub bearings closing the ends of a cylinder bore and supporting a crankshaft having an eccentric portion on which a rolling piston positioned in the cylinder bore is rotatably mounted. Oil... | 07/09/1991 |
| 5022836 | Sealing device for oil rotary vacuum pump A sealing device for an oil rotary vacuum pump of the type which includes a rotor, a cylinder for accommodating the rotor, the cylinder having a suction port and a discharge port, an end cover provided at one end of the cylinder, a rotary shaft of the rot... | 06/11/1991 |
| 4983108 | Low pressure container type rolling piston compressor with lubrication channel in the end plate A low pressure container type rolling piston compressor which includes a compression element, a motor element, a rotary shaft with an eccentric portion driven by the motor element, a cylinder for receiving therein the eccentric portion of the rotary shaft... | 01/08/1991 |
| 4867658 | Rotary vane compressor having pressure-biased vanes A rotary vane compressor has a cylinder having an oval-shaped compartment in which is rotatably mounted a rotor. Front and rear side blocks close the opposite ends of the cylinder. A plurality of vanes are slidably mounted in slots formed around the rotor... | 09/19/1989 |
| 4810177 | Vane compressor with vane back pressure adjustment A vane compressor has a vane back pressure adjustment device including back-pressure chambers defined in a vane-supporting rotor and surrounded by vanes and side blocks secured to axial ends of a cylinder. The back-pressure chamber has axial ends disposed... | 03/07/1989 |
| 4795325 | Compressor of rotary vane type A compressor of the rotary vane type including an annular space dormed inside a rotor for communicating vane slots formed in the rotor in communication with one another and for storing lubricant therein. As vanes each received in one of the vane slots mov... | 01/03/1989 |
| 4743183 | Rotary vane compressor with discharge fluid to front and rear shaft bearings and vane slats A first refrigerant gas passage is provided for conveying refrigerant gas under pressure to rearward ends of rotor vane slots through a rear bearing in order to supply back pressure to the rotor vane slots as well as to supply lubricant to the rear bearin... | 05/10/1988 |
| 4717321 | Vane compressor with vane back pressure adjustment A vane compressor has a vane back pressure adjustment device including back-pressure chambers defined in a vane-supporting rotor and surrounded by vanes and side blocks secured to axial ends of a cylinder. The back-pressure chamber has axial ends disposed... | 01/05/1988 |
| 4711620 | Moving vane type compressor A moving vane type compressor has a cylinder which is made of a sintered material having a density of 6.6 to 7.6 and a composition consisting essentially of 0.6 to 0.8% of carbon, 1 to 2% of copper and the balance substantially iron. The cylinder is encas... | 12/08/1987 |
| 4611977 | Vane compressor with vane back pressure adjustment A vane compressor has a vane back pressure adjustment device including back-pressure chambers defined in a vane-supporting rotor and surrounded by vanes and side blocks secured to axial ends of a cylinder. The back-pressure chamber has axial ends disposed... | 09/16/1986 |
| 4571164 | Vane compressor with vane back pressure adjustment A vane compressor has a vane back pressure adjustment device including back-pressure chambers defined in a vane-supporting rotor and surrounded by vanes and side blocks secured to axial ends of a cylinder. The back-pressure chamber has axial ends disposed... | 02/18/1986 |
| 4548557 | Hydraulic pump or motor with interchangeable gears A hydraulic pump motor components including at least two co-acting gears arranged in wells which conform to the gears and which communicate with channels for supply and return oil respectively. To enable the displacement of the pump or motor to be readily... | 10/22/1985 |
| 4507065 | Vane compressor having drive shaft journalled by roller bearings A sealing chamber is defined between the front head and the front side block, and an oil chamber between the rear side block and a partition member secured to the rear end face of the rear side block, respectively. The drive shaft, on which the rotor is r... | 03/26/1985 |
| 4402653 | Rotary compressor A rotary compressor comprises an open-ended cylinder having its open ends closed by end plates and an eccentrically rotatable rotor housed inside the cylinder. A hydrodynamic seal is provided on either the rotor or each of the end plates for minimizing an... | 09/06/1983 |
| 4355964 | Gear pump having fluid deaeration capability A gear pump (10) is disclosed having a housing (12) defining first and second gear cavities (38,40) and inlet and outlet ports (42,44). A pair of intermeshing gears (20,22) having a plurality of teeth (32) and teeth roots (36) are positioned in the caviti... | 10/26/1982 |
| 4350479 | Scrool-type fluid machine with liquid-filled force-balanced pockets A scroll-type fluid machine is provided with a plurality of liquid-confining pockets formed in the sliding surface of the end member of either one of orbiting and stationary scrolls. In operation, a high liquid pressure is generated in the pocket or pocke... | 09/21/1982 |
| 4308002 | Wankel-type engine with semi-circular sectional configuration for chamber end surface A Wankel-type engine has a housing with a chamber therein having parallel, axially spaced side surfaces joined by an end surface which has a semi-circular contour in an axially longitudinal plane. A rotor, eccentrically mounted on a shaft carried by the h... | 12/29/1981 |
| 4255098 | Rotary vane pump assembly An improved rotary vane machine assembly of the type utilized for producing vacuum in motor vehicle power brake assistance units wherein a compensating coupling connects the pump drive shaft with the drive motor of the pump and a lubricant is supplied to ... | 03/10/1981 |
