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Rotary expansible chamber devices December patent applications/inventions, industry category 12/11

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.
12/29/2011 > 4 patent applications in 4 patent subcategories.

20110318209 - Fluid-flow system, device and method: Methods, devices, and systems are disclosed for combining fluids of different pressures and flow rates in, for example, gas gathering systems, gas wells, and other areas in which independently powered compressors are not desired. Methods, devices, and systems for turning a shaft are also provided, as are methods, devices, and... Agent: Blue Marble Engineering LLC

20110318210 - Vacuum pump: A multistage vacuum pump includes a stator housing a multistage rotor assembly, each stage having intermeshing Roots rotor components, wherein the tip radius of the rotor components at an inlet stage of the pump is larger than the tip radius of the rotor components at an exhaust stage of the... Agent:

20110318211 - Scroll compressor: In a scroll compressor, a pass hole is formed at a position overlapping with a discharge sector of a discharge hole, where a sector for passing a refrigerant through the pass hole is overlapped with a sector for discharging the refrigerant through a discharge hole. This may prevent over-compression of... Agent: Lg Electronics Inc.

20110318212 - Scroll-type refrigerator compressor: This compressor comprises first and second volutes describing an orbital relative movement and each comprising a plate from which a spiral extends, the two spirals being engaged one inside the other and defining pairs of compression chambers of variable volume. The compressor has a housing formed in that surface of... Agent: Danfoss Commercial Compressors

12/22/2011 > 5 patent applications in 5 patent subcategories.

20110311384 - Temporary self-lubricating coating for scroll compressor: A sealed compressor is provided with a spray lubricant that will provide lubricant at various bearing surfaces during initial start-up of the compressor. The lubricant will wear away quickly after initial run-in, but liquid lubricant will be provided by that time.... Agent:

20110311385 - Vane pump and vapor leakage check system having the same: A vane pump includes a housing defining a pump chamber; a rotor rotatably arranged in the pump chamber; and a motor to rotate the rotor. An imaginary plane is defined to bisect the pump chamber in an axis direction. The housing has a first inlet port and a second inlet... Agent: Denso Corporation

20110311386 - Pumping systems: A modular symmetrical asphalt pumping system providing a series of field-configurable gear pumps and meters usable to safely and efficiently pump viscous molten fluids, such as, asphalt and similar bituminous materials. The system utilizes highly symmetrical physical geometries and modular components to allow for the development of multiple pump configurations... Agent:

20110311387 - High efficiency fixed displacement vane pump: A vane pump for an automatic transmission includes a housing which may be spaced from the axis of the transmission input shaft axis and driven by a chain or gear train driven by the torque converter hub or disposed on and about the axis of the transmission input shaft and... Agent: Gm Global Technoloby Operations, Inc.

20110311388 - Hydraulic motor or pump: A hydraulic motor or pump (2) that generates a relatively high torque, and further allows an unprecedented high specific displacement that makes the motor suitable yaw motor for large wind turbines of horizontal axis wind turbines or wheel yaw motor on Heavy Carriers. The characteristic by the hydraulic motor or... Agent: Liftra Aps

12/15/2011 > 1 patent applications in 1 patent subcategories.

20110305589 - Eccentric screw pump: The invention relates to an eccentric screw pump (100), in particular for conveying viscous, highly viscous and abrasive media, having a longitudinal direction L, having a conical, helically wound, at least single-start rotor (1) having a gradient h, having at least one eccentricity (e1, e2, e3, . . . en)... Agent:

12/08/2011 > 5 patent applications in 4 patent subcategories.

20110300012 - Scroll expansion machine: The rotating shaft is connected to the generator; the high-pressure steam s is introduced to the expansion chamber b through the guide passage; when the energy of the high-pressure steam s during expansion process revolves the revolving scroll, the generator regenerates electric power. The connecting housing is provided with the... Agent: Anest Iwata Corporation

20110300011 - Scroll type compressor: A scroll type compressor has a rotary shaft, a fixed scroll member, a movable scroll member and a rib. The fixed scroll member has a fixed end plate and a fixed scroll wall. The fixed end plate has first and second sides. The fixed scroll wall is formed on the... Agent: Kabushiki Kaisha Toyota Jidoshokki

20110300013 - Scroll fluid machine: In the scroll fluid machine in which an orbiting scroll 10 is pivot-driven by a rotary shaft 102 rotatably supported by the casing 100 and a pivot shaft 104 eccentrically and rotatably supported by the rotary shaft 102, as a method, a self-rotation prevention board 109 is attached to one... Agent: Richstone Limited

20110300014 - Rotary lobe blower (pump) or vacuum pump with a shunt pulsation trap: A shunt pulsation trap for a rotary lobe blower (pump) or vacuum pump reduces pulsation, NVH and improves efficiency without increasing overall size of the blower or pump. Generally, a rotary lobe blower (pump) or vacuum pump with the shunt pulsation trap has a pair of interconnected and synchronized parallel... Agent:

20110300015 - Vane pump: A vane pump is disclosed. The vane pump includes at least an inner rotor and at least one vane. The inner rotor is rotatably mounted in a cage and the at least one vane is configured in at least one substantially radial slot, the slot is configured in the inner... Agent:

12/01/2011 > 5 patent applications in 5 patent subcategories.

20110293456 - Scroll machine: A compressor includes a shell, a compression mechanism, and an axial biasing system. The shell defines a first passage forming a first discharge passage. The compression mechanism includes first and second scroll members meshingly engaged with one another and forming a series of compression pockets. The first scroll member includes... Agent:

20110293457 - Pneumatic vane motor: A pneumatic vane motor comprising a housing (10) with a cylinder (11), two end walls (13,14), and a rotor (18) journalled in the housing (10) and carrying one or more pairs of sliding vanes (31), and vane supporting pins (32) longitudinally movable in transverse bores (33) in the rotor (18)... Agent: Atlas Copco Tools Ab

20110293458 - Vane cell pump: The invention relates to vane cell pumps having a rotor mounted in a pump housing and driven by a shaft, multiple vane plates mounted in the outer circumference of this rotor, and an outer ring that surrounds the rotor and the vane plates, whereby this ring is disposed either directly... Agent: Geraete- Und Pumpenbau Gmbh Dr. Eugen Schmidt

20110293459 - Screw pump with field refurbishment provisions: A screw pump (20) with field refurbishment provisions has screws (40), a base (26), and shafts (50) for the screws (40). The screws (40) have helical flights that intermesh during rotation, and extend between inner and outer ends (44 and 42). The shafts (50) extend between inner and outer ends... Agent:

20110293460 - Vane pump inlet window shape: A vane pump has an inlet window and a discharge window formed within a cam surface. The vane pump includes a rotor carrying a plurality of radially extending vanes which are biased into contact with the cam surface. The rotor has a direction of rotation such that one end of... Agent:

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