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Rotary expansible chamber devices September class, title,number 09/09

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
09/24/2009 > patent applications in patent subcategories.

20090238703 - Scroll compressor: A scroll compressor includes a fluid guide having a flow path through which a fluid discharged to an inner space of a casing from a compression part flows, for guiding a flowing direction of the fluid to be changed along the flow path. Oil is effectively separated from a refrigerant... Agent: Mckenna Long & Aldridge LLP

20090238704 - Scroll compressor: There is disclosed a scroll compressor capable of improving the oil separating device of a refrigerant gas discharged from a scroll compression element to effectively suppress the amount of oil to be discharged through a discharge tube. The scroll compressor has, in a sealed container, a scroll compression element, a... Agent: Kratz, Quintos & Hanson, LLP

20090238705 - Rotary compressor: A rotary compressor includes a fixed side and a movable side that is eccentrically movable relative to the fixed side. The movable side moves in response to operation of a drive mechanism, which rotates a drive shaft. The fixed side has a main bearing formed as a unitary part. A... Agent: GlobalIPCounselors, LLP

20090238706 - Self-aligning pump rotor and methods: A rotary fluid device having a housing that defines a pumping chamber, a shaft disposed in the housing, and a rotor disposed in the pumping chamber and engaged with the shaft. The rotor includes a body which defines a bore that includes an oblique tapered surface. A pivot line is... Agent: Merchant & Gould PC

20090238707 - Vane pump: A vane pump having a pump containing a rotor driven via a drive shaft with the rotor having a number of generally radially extending grooves distributed over its circumference each of which grooves support a vane shaped delivery element in sliding fashion. The rotor is encompassed by an eccentric circumferential... Agent: Ronald E. Greigg Greigg & Greigg P.l.l.c.

20090238708 - Rotary pump: Disclosed herein is a rotary pump in which one or more rotors including rotary cylinders and rotary pistons rotate upon inside a housing having a suction hole and a discharge hole to compress a pump fluid. More particularly, the two rotary pistons are arrange to revolve about a rotating shaft... Agent: Morgan & Finnegan Transition Team C/o Locke Lord Bissell & Liddell

20090238709 - Magnetic vane ejection for a rotary vane air motor: A magnetic rotary vane pump is disclosed which includes a rotor disposed within a casing that comprises a cavity having an inlet and an outlet. The rotor includes at least one radial slot and at least one vane carried by the radial slot. The vane includes an inner edge directed... Agent: Miller, Matthias & Hull

20090238710 - Multicylindrical rotary compressor, compression system, and freezing device using the compression system: In a multicylindrical rotary compressor constituted to be usable by urging an only first vane with respect to a first roller by means of a spring member to switch a first operation mode in which first and second rotary compression elements perform compression works and a second operation mode in... Agent: Kratz, Quintos & Hanson, LLP

09/17/2009 > patent applications in patent subcategories.

20090232687 - Control method of inverter compressor and inverter compressor: When a compressor is restarted at the time of occurrence of an inverter trip after a retry waiting time which is preliminarily set so as to lower a pressure on a discharge side of a main body of the compressor to a pressure where the main body of the compressor... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090232688 - Compressor installation with a water-injected compressor element: Compressor installation with a water-injected compressor element to which an inlet line (4) and an outlet line (5) are connected, an air inlet filter (13) to which said inlet line (4) is connected, a water separator (6) into which said outlet line (5) feeds and a return line (7) between... Agent: Bacon & Thomas, PLLC

20090232689 - Supercharger with outlet bars for rotor tip seal support: The invention is to reduce flutter and wear and improve the serviceability and wear life of tip seals for roots blower and screw type compressor superchargers where used for improved supercharger output and efficiency. As the seals travel over the outlet opening, the seals move outward in their slots, leading... Agent: General Motors Company Legal Staff

20090232690 - Seal apparatus of gear pump: A seal apparatus includes at least one pair of gears; a side plate arranged adjacent to the pair of gears; and a housing sandwiching the side plate. At least one of the side plate and the housing includes a shoulder portion. The seal apparatus further includes a seal member arranged... Agent: Foley And Lardner LLP Suite 500

20090232691 - Low-pressure screw compressor: Low-pressure screw compressor provided with a rotor housing (2) with an inlet side and an outlet side, and enclosing two rotor bodies (3 and 4) including shafts (5, 7 respectively) and screws (6, 8 respectively) mounted on the shafts. The rotor shafts (5 or 7) are bearing-mounted in the rotor... Agent: Bacon & Thomas, PLLC

09/10/2009 > patent applications in patent subcategories.

20090226336 - Axial flow positive displacement turbine: An axial flow positive displacement turbine includes inner and outer bodies having offset inner and outer axes respectively extending between a relatively high pressure inlet and a relatively low pressure outlet. At least one of the bodies is rotatable about its axis. The inner and outer bodies have intermeshed inner... Agent: Steven J. Rosen Patent Attorney

20090226337 - Pump with a cylindrical cooling bush: A pump, particularly to a vane-cell pump for a vacuum for brake boosters in motor vehicles or for drawing blow-by gas out of the crankcase of internal combustion engines, with a casing, a rotor and with at least one vane and a liquid cooling device, which is depicted by a... Agent: Davidson, Davidson & Kappel, LLC

09/03/2009 > patent applications in patent subcategories.

20090220366 - Slide valve position indicator: The angular displacement of an inclined cam about the compressor slide valve shaft rotates an annular surface having a helically inclined face aligned with and spaced apart from a sensor head of a magnetic sensor mounted to the compressor. The rotation provides a linear variation in the size of the... Agent: Antony C. Edwards

20090220367 - Rotary pump: The claimed invention relates to rotary pumps. The claimed rotary pump comprises: an hollow housing having a side wall and end-face walls; a shaft rotatably positioned in the housing essentially in parallel with the side wall, the distance between the housing side wall and the shaft is variable; deformable rollers... Agent: Schlumberger Reservoir Completions

20090220369 - Non-contact seal for positive displacement capture device: A positive displacement capture device 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

20090220368 - Positive displacement capture device and method of balancing positive displacement capture devices: A positive displacement capture apparatus contains a plurality of positive displacement capture devices which each contain 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... Agent: General Electric Company Global Research

20090220370 - Gas compressor: A compressor includes a compression mechanism for suctioning gas through a suction path to compress the gas and discharging the compressed gas and a check valve for preventing backward-flow of the gas in the suction path. The check valve includes an accommodation hole (its one end is opened toward the... Agent: Foley And Lardner LLP Suite 500

20090220371 - Methods for dimensional restoration of roots type blower rotors, restored rotors, and apparatus having restored rotor: Method includes applying additive material to a pre-selected region of a rotor for use in a Roots type blower assembly. The additive material restores structural dimension to provide measured rotor-to-rotor clearance and/or rotor-to-case clearance within the predetermined clearance range. The additive material may be an epoxy paint material or a... Agent: General Electric Company

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