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| Number | Title | Issue Date |
| 7255376 | Pressure sensing dead bolt An apparatus, system and method including a latching device for displaceably retaining a panel relative to a frame. The latching device includes at least a bolt which is carried on the latching device and is operatively associated with the panel to prevent disengage... | 08/14/2007 |
| 7216579 | Variable flow control devices, related applications, and related methods Devices for adjustably controlling a flow of fluid through a common passage and through first and second auxiliary passages are disclosed. The flow control devices may be used for controlling the steering of a vehicle having independently controlled driven structure... | 05/15/2007 |
| 7083394 | Vane pump with undervane feed A vane pump is disclosed for use with gas turbine engines which has pressurized fluid supplied to the undervane portion of the vane elements to balance the forces imparted thereon. The vane pump includes a pump housing, a cam member, a cylindrical rotor member and a... | 08/01/2006 |
| 7077098 | Vane-type piston, four-cycle multi-chamber rotary internal combustion engine A rotary internal combustion engine has a hollow stator with inner surface formed by two concentric cylindrical surfaces, which fluently transit one into the other via ramp surfaces, and a cylindrical rotor, having the same radius as smaller concentric surface of th... | 07/18/2006 |
| 7074023 | Scroll compressor A scroll compressor enabling decrease of a flow path loss in a communication groove extending from a suction port toward a suction chamber to decrease a loss of suction power is disclosed. In the scroll compressor, a movable scroll is provided so as to perform a swi... | 07/11/2006 |
| 7052256 | Synchronized transaxle hydraulic motor A dual shaft gerotor motor (11) of the type comprising a gerotor gear set (13) including an internally-toothed ring member (15) and an externally-toothed star member (17). The motor (11) includes substantially identical first (2... | 05/30/2006 |
| 6974313 | Multiple induction energy-driven engine A multiple transmission energetic machine, comprising an engine block containing a cylinder into which a blade is inserted so as to partly rotate; and at least one assembly comprising a supporting kingpin, installed to rotate in engine block and each end of which is... | 12/13/2005 |
| 6932587 | Gerotor motor with valve in rotor A rotary fluid pressure device having a housing member, a manifold assembly, an internally generated rotor type gerotor set, an end plate, and a rotatably journaled torque transfer shaft interconnected with the gerotor set and extending within the housing member and... | 08/23/2005 |
| 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 |
| 6752605 | Horizontal two stage rotary compressor with a bearing-driven lubrication structure A hermetic rotary compressor including a housing having an oil sump formed therein; a stationary shaft fixedly mounted in the housing, a longitudinal bore formed in the shaft; and a motor mounted in the housing, the motor having a rotor and a stator, the rotor havin... | 06/22/2004 |
| 6743003 | Hydraulic device with balanced rotor A rotary fluid pressure device having a housing member, a manifold assembly, a gerotor set, an end plate, and a rotatably journaled torque transfer shaft interconnected with the gerotor set and extending within the housing member and manifold assembly. The gerotor s... | 06/01/2004 |
| 6575719 | Planetary rotary machine using apertures, volutes and continuous carbon fiber reinforced peek seals Apertures through each face of a planetary rotor, volutes for low loss delivery and collection of fluid to and from the working volumes of a planetary rotary pump, compressor, or turbine, and zero clearance seals by using continuous carbon fiber reinforce... | 06/10/2003 |
| 6497564 | Balanced rotors positive displacement engine and pump method and apparatus A machine to convert energy providing positive displacement of a fluid contained in operating chambers. The machine can either increase the pressure of a fluid or extract energy from a pressure differential to a rotating shaft. The machine having desirabl... | 12/24/2002 |
| 6247443 | Rotary internal combustion engine and rotary internal combustion engine cycle An internal combustion rotary engine (1) comprises an engine casing (300) in which is rotatably mounted a cylindrical rotor assembly (2) co-axially fixed to a drive shaft (6). The rotor (3) receives a plurality of reciprocating vanes (9, 10, 11) in a stag... | 06/19/2001 |
| 5937820 | Four cycle rotary engine A rotary engine consisting of a slightly oblong casing (10) housing a circular shaped rotor (12). Attached to the rotor are separating vanes (14) that slide in and out of the rotor to create separate chambers within the engine. Additionally, the rotor hou... | 08/17/1999 |
| 5613846 | Filling, fluid-transporting, and pumping device A fluid conveying device in accordance with the invention includes a housing having an inlet forming a suction side and an outlet forming a pressure side, a cylindrical pumping chamber with intake and discharge openings at opposite sides which respectivel... | 03/25/1997 |
| 5516268 | Valve-in-star motor balancing A gerotor motor of the valve-in-star type in which the star (27) is disposed adjacent a stationary valve plate (15). The stationary valve plate (15) defines a plurality N+1 of stationary ports (65) in communication with the inlet port (55). The gerotor st... | 05/14/1996 |
| 5431551 | Rotary positive displacement device A rotary device containing a housing having a curved inner surface with a profile equidistant from an trochoidal curve, an eccentric mounted on a shaft disposed within the housing, a rotor mounted on the eccentric shaft which contains at least three inter... | 07/11/1995 |
| 5330333 | Indexing rotary actuator with clutch pistons An indexing rotary actuator is provided for unidirectionally rotating an output shaft through a specific angle per each indexing operation accurately without cumulative error. A pair of symmetrical housing members are mounted together to form an actuator ... | 07/19/1994 |
| 5259739 | Non-reciprocating multi-piston engine A mechanism for providing motive power consisting of a plurality of rotary-type pistons fitted into chambers uniformly situated about the axis of the engine in a housing for improving the effective displacement and compression of such engines. Motive forc... | 11/09/1993 |
| 5217357 | Rotary vane pump with removable particulate collection chamber A rotary vane pump has a hollow rotor and a stationary liquid distributor member within the hollow rotor center, within which member plural supply and discharge fluid paths are provided. An elliptical housing allows for any one pumping chamber defined bet... | 06/08/1993 |
| 5064362 | Balanced dual-lobe vane pump with radial inlet and outlet parting through the pump rotor A vane-type rotary hydraulic machine that comprises a housing, a rotor mounted within the housing and having a plurality of radially extending peripheral slots, and a plurality of vanes individually slidably mounted in the rotor slots. A cam ring within t... | 11/12/1991 |
| 4986739 | Gerotor pump having axial fluid transfer passages through the lobes A gerotor pump set passages 32 extending parallel to the axis of rotation through the female lobed annulus, and similar passages through the male lobed rotor. These passages enable flow from the fluid inlet to pass into the working chamber such as 43 eith... | 01/22/1991 |
| 4981422 | Gerotor device having a valve opening diameter smaller than the drive connection diameter A gerotor device with an orbiting valve wherein the outside diameter of the valving passages in the orbiting valve are smaller than the inside diameter of the rotor wobblestick drive connection.... | 01/01/1991 |
| 4979882 | Spherical rotary machine having six rotary pistons A spherical rotary machine which may be embodied as a pump, internal combustion engine, compressor or similar other device includes an outer shell with a substantially spherical interior surface, an inner shell including a substantially spherical outer su... | 12/25/1990 |
| 4946355 | Orbital pump A positive displacement pump is particularly adapted for corrosive, abrasive and viscous liquids. It employs a combination of orbital and nodding movements provided by a unique mechanism. A rotor member, mounted eccentrically on a drive shaft, fits closel... | 08/07/1990 |
| 4936402 | Hydrostatic steering device including a gerotor set An improved hydrostatic steering mechanism is disclosed having the operation valve for the steering mechanism located within the rotor of the metering and feedback operational gerotor set.... | 06/26/1990 |
| 4772185 | Rotary vane pump having a plurality of inlet and outlet slots in a rotating sleeve A rotary vane vacuum pump assembly is disclosed which is characterized by the absence of the discharge of lubricating oil with the exhaust airstream, and which includes an internal stator and a surrounding rotor. Pivotal vanes are mounted on the interior ... | 09/20/1988 |
| 4756676 | Gerotor motor with valving in gerotor star A rotary fluid pressure device of the type including a gerotor gear set (115) including a ring member (119) and a star (123). Adjacent to the gerotor set are endcap members (117) each having an end surface (141) in engagement with an adjacent end surface ... | 07/12/1988 |
| 4741681 | Gerotor motor with valving in gerotor star A rotary fluid pressure device of the type including a gerotor gear set (15) including a ring member (19) and a star (23). Adjacent the gerotor set is an endcap member (17) having an end surface (41) in engagement with the adjacent end surface (42) of the... | 05/03/1988 |
| 4715798 | Two-speed valve-in star motor A rotary fluid pressure device is disclosed of the type including a gerotor gear set including a ring member (19) and a star member (23). Both manifold valving and commutator valving are accomplished at an interface between an end surface (42) of the star... | 12/29/1987 |
| 4627802 | Rotary vane compressor with inlet and outlet valves in the rotor A vane compressor comprising a rotor eccentrically arranged in a cylindrical housing and vanes, which define a space between the periphery of the rotor and the inner surface of the housing. The volume of the space varies during the rotation of the rotor d... | 12/09/1986 |
| 4597725 | Rotary piston machine with parallel internal axes A ring and star type gear set is disclosed with recessed passages 32 that serve to communicate the fluid chambers about the line of eccentricity.... | 07/01/1986 |
| 4563136 | High torque low speed hydraulic motor with rotary valving A hydraulic torque motor and more particularly a hydraulic torque motor 10 of the internally generated rotor family having a rotatable inner rotor 24 and an orbital outer rotor 26 and which includes an improved rotary valve means 66 for the delivery and e... | 01/07/1986 |
| 4502855 | Rotary piston machine with parallel internal axes A gerotor type star and ring gear machine in which control orifices in the star gear alternatively register with ports in the end wall. The star gear is formed from a series of plates and has two sets of control orifices formed therein with one set being ... | 03/05/1985 |
| 4474544 | Rotary gerotor hydraulic device with fluid control passageways through the rotor A rotary fluid pressure device is disclosed comprising a housing having fluid inlet and outlet means and enclosing a gerotor having an internally toothed member and a coacting externally toothed member having a less number of teeth than the internally too... | 10/02/1984 |
| 4456441 | Rotary machine A rotary engine, either prime mover--or pump or compressor--comprises as its basic element a circular casing in which is journalled rotatably a hollow, cylindrical body, the interior wall face of which ascribes a space delimited by recesses alternating wi... | 06/26/1984 |
| 4451216 | Planetary hydraulic motor with stator gear hinged to a housing A planetary hydraulic motor comprises a stator gear (1) having arranged inside thereof a rotor (3), and cover plates (5 and 6) adjacent to end faces of the rotor (3) and the stator gear (1). Rigidly secured to the stator gear (1) is one end of an arm (7) ... | 05/29/1984 |
| 4439119 | Gerotor machine with commutating valving through the ring gear The invention relates to a fluid pressure operated motor or pump of the type having a gerotor displacement mechanism which normally includes inner and outer wheel and ring gears which in operation have relative rotational and orbital movement therebetween... | 03/27/1984 |
| 4413962 | Torque-amplifying servo-mechanism with compact structure for power steering systems Torque-amplifying servomechanism particularly for use in motor vehicle power steering systems, having the advantage of occupying less space in the axial sense; The device provided by the invention is made up by the association of a hydraulic motor of the ... | 11/08/1983 |
