Rotary expansible chamber devices inventions 12/08

20080317619 - Tandem compressor system and method: A compressor system including a first compressor and a second compressor. The first and second compressors each include a shell, a compression mechanism disposed within the shell, and a drive member adapted to drive the compression mechanism. A discharge tube assembly interconnects the first compressor and the second compressor, and... Agent: Harness, Dickey & Pierce, P.L.C

20080310981 - Positive displacement flow separator: A positive displacement flow separator contains a rotor portion positioned inside a casing portion to act as a least area rotor which captures a volume and moves the volume along the length of the separator. The rotor portion contains a plurality of lobes which interact with grooves in the casing... Agent: General Electric Company Global Research

20080310982 - Positive displacement flow separator with combustor: A positive displacement flow separator or combustor contains a rotor portion positioned inside a casing portion to act as a least area rotor which captures a volume and moves the volume along the length of the separator. The rotor portion contains a plurality of lobes which interact with grooves in... Agent: General Electric Company Global Research

20080310983 - Expander: A positive displacement expander includes a volume change mechanism (90) for changing the volume of a first fluid chamber (72) of an expansion mechanism (60). The expansion mechanism (60) includes a first rotary mechanism (70) and a second rotary mechanism (80) each having a cylinder (71, 81) containing a rotor... Agent: Birch Stewart Kolasch & Birch

20080310984 - Positive displacement capture device: A positive displacement flow separator contains a rotor portion positioned inside a casing portion to act as a least area rotor which captures a volume and moves the volume along the length of the separator. The rotor portion contains a plurality of lobes which interact with grooves in the casing... Agent: General Electric Company Global Research

20080310985 - Motor driven by pressure medium supplied from an external pressure source: A motor (20) is driven by pressure medium delivered from an external pressure source. A rotor part (28) forms sealing abutment against a local area (2Id) of the motor's (20) cylindrical inner wall (21c). A piston-forming plate part (30) is pivot-mounted at one end to the rotor part (28) and... Agent: Christian D. Abel

20080310986 - Oil-cooled screw compressor: In an oil-cooled screw compressor comprising, a compressor body including a pair of a male rotor and a female rotor, a motor including a stator and a motor rotor connected to one of the male and female rotors, and an oil separator container for gathering the oil from a mixture... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080310987 - Rotary piston machine: The rotary piston machine has a bypass channel, which is formed through two openings (15, 16) provided in a sidewall (6) of its delivery housing (4) and a channel (17) extending into this sidewall (6) in such a way that the bypass channel (17) is restricted on one side by... Agent: Ladas & Parry LLP

20080310988 - Vane pump: A vane pump for pumping hydraulic fluid wherein fluid at a pressure intermediate the inlet pressure and the outlet pressure of the pump is supplied to under vane passages of the vanes located in and passing through the rise region of the pump. This assists in preventing damage to the... Agent: Winston & Strawn LLP Patent Department

20080304990 - Screw compressor: This can be achieved by a screw compressor as described in the opening paragraph if the slider comprises at least two surfaces, which surfaces are cooperating with subsequent surfaces placed in conjunction with the slider housing for controlling the angular and linear placement of the slider in its forward position.... Agent: Roberts Mlotkowski Safran & Cole, P.C. Intellectual Property Department

20080304992 - Braze or solder reinforced moineu stator: A Moineau style stator includes a helical reinforcement component that provides an internal helical cavity. A resilient liner is deployed on an inner surface of the helical reinforcement component. The helical reinforcement component includes a solder or braze material and is typically metallurgically bonded to an inner wall of a... Agent: W-h Energy Services, Inc.

20080304991 - Moineu stator including a skeletal reinforcement: A Moineau style stator includes a helical cavity component having reinforced helical lobes. The lobes are reinforced with a three-dimensional network of physically bonded aggregate particles. The network of bonded aggregate provides a porous skeletal-like structural reinforcement. Pore volume between the bonded aggregate particles may optionally be partially or substantially... Agent: W-h Energy Services, Inc.

20080304993 - Hybrid nutating pump: A nutating pump for creating pressure or a vacuum. The nutating pump includes a housing with a center support positioned within said housing. The center support includes a semi-spherical recess. The pump also includes a drive shaft adapted to be connected to an electric motor and an eccentric adapted to... Agent: Husch Blackwell Sanders, LLP Welsh & Katz

20080304994 - Scroll fluid machine: A scroll fluid machine is configured by engaging a fixed scroll and an orbiting scroll having spiral bodies formed on base plates. A seal member is provided between a rear surface of the orbiting scroll and a frame member arranged opposite thereto to divide a rear side chamber into an... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080304995 - Radial axis, spherical based rotary machines: A rotary machine which can be either a pump or an internal combustion engine has a housing enclosing a plurality of rotor spindles lying on the surface of an imaginary cone for driving an output shaft positioned at the vertex of the imaginary cone. The spindles have a beveled gear... Agent: Wilmerhale/boston

20080298992 - Scroll expander: A scroll expander that is efficient in a wide range of operating conditions by suppressing leakage loss and decreasing in recovered power using a simple construction includes: an expansion mechanism, including an orbiting scroll and a first fixed scroll, recovers power by expanding a refrigerant; and an auxiliary compression mechanism,... Agent: Leydig Voit & Mayer, Ltd

20080298993 - Compression system, multicylinder rotary compressor, and refrigeration apparatus using the same: An object is to avoid generation of a collision sound of a second vane of a compression system comprising a multicylinder rotary compressor being configured to be used by switching of a first operation mode in which both rotary compression elements perform a compression work and a the second operation... Agent: Kratz, Quintos & Hanson, LLP

20080298994 - Power transfer assembly with high efficiency pump: A pump assembly includes a pump housing, a stator ring supported within the pump housing, and a pump ring also rotatably supported within the pump housing. The pump ring interfaces with the stator ring to define a plurality of variable volume pressure chambers. A cover plate covers the stator ring... Agent: Harness, Dickey & Pierce, P.L.C