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Rotary expansible chamber devices June invention type 06/11

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.
06/30/2011 > patent applications in patent subcategories.

20110158837 - Rotary engine vane apparatus and method of operation therefor: A rotor engine is provided for operation with a fuel expanding during a power stroke. To aid power stroke efficiency, the rotary engine contains a vane, where a tip of the vane includes one or more of: a rolling element configured to move with the vane, a bearing for bearing... Agent: Fibonacci International, Inc.

20110158838 - Scroll compressor: A scroll compressor includes a casing, a compressor mechanism, a housing, a partition member and a flow mechanism. The compressor mechanism is accommodated in the casing. The compressor mechanism includes a fixed scroll and a movable scroll arranged to form a compression chamber. The housing is disposed on a back... Agent: Daikin Industries, Ltd.

20110158839 - Scroll fluid machine: There is provided a scroll fluid machine in which sealability is improved by uniforming a deformed shape of a fastened face of a spindle frame with respect to a fixed scroll, and compression performance is improved. The machine is characterized by comprising a scroll unit disposed in a container, a... Agent:

20110158840 - Oil recovery member, and motor mechanism and compressor using the same: The present invention relates to an oil recovery member, and a motor mechanism and a compressor using the same. The oil recovery member is provided to prevent oil rising along a rotation shaft from being discharged with refrigerant, and relative sizes such as installation positions between the oil recovery member... Agent:

20110158841 - Screw pump with anti-turbulent structure: A screw pump with anti-turbulent structure has a housing, at least two screw rotors parallelly mounted through the housing and engaging with each other, and a partition disposed around the at least two screw rotor. The partition may have at least two circular walls respectively formed around the rotors and... Agent: Sunny King Machinery Co., Ltd.

06/23/2011 > patent applications in patent subcategories.

20110150682 - Cam bearing flow control for rotating cam ring vane pump: A pump assembly includes a housing having a chamber in communication with an inlet and an outlet. A rotating ring, variable displacement vane pump is received in the chamber. The pump, and particularly the rotating ring, is supported by a fluid bearing in the chamber. A control is provided for... Agent:

20110150683 - Rotary compressor: A twin rotary compressor is provided. In the twin rotary compressor, a refrigerant suction pipe may be connected to a middle plate positioned between a first cylinder and a second cylinder to reduce a height of the first cylinder, so that heights of a first rolling piston and a first... Agent:

20110150684 - Variable displacement vane pump: A variable displacement vane pump includes: a plate side high pressure introduction groove formed in the pressure plate or in the cam ring, formed so that an entire is positioned within a radial width of the cam ring, and a part is positioned in a circumferential region between the suction... Agent: Hitachi Automotive Systems, Ltd.

20110150686 - Progressive cavity hydraulic machine: This invention relates to machine-building, more specifically, to the design and manufacturing of positive displacement motors various embodiments of which are used for hydrocarbon production.... Agent: Schlumberger Technology Corporation

20110150687 - Progressive cavity pump with inner and outer rotors: The invention relates to a progressive cavity pump comprising at least one inner rotor (18) with Z external threads and at least one adapted outer rotor with Z+1 internal threads, characterized by the outer rotor having radial bearings at both ends, whereas the inner rotor has a radial bearing (11)... Agent: Agr Subsea As

20110150685 - Stator to housing lock in a progressing cavity pump: A reinforcing interface between the stator and its housing in a progressing cavity pump is created from ribs extending inwardly into the stator from the housing inner wall that can be longitudinally oriented or spirally oriented. Alternatively, the housing wall can have grooves into the inner wall that are made... Agent: Baker Hughes Incorporated

20110150689 - Outer rotor of a progressing cavity pump having an inner and an outer rotor: An outer rotor of a progressive cavity pump comprising at least one inner helical rotor with Z external thread starts and at least one adapted outer rotor with a helical cavity with Z+1 internal thread starts, characterized in that at least an outer rotor (1, 3) is assembled from several... Agent: Agr Subsea As

20110150688 - Scroll compressor with discharge valve: A scroll compressor is provided and may include an orbiting scroll member having an orbiting end plate and an orbiting spiral wrap extending from the orbiting end plate. The scroll compressor may also include a non-orbiting scroll member having a non-orbiting end plate and a non-orbiting spiral wrap extending from... Agent: Emerson Climate Technologies, Inc.

20110150690 - Oil supply structure for refrigerant compressor: An oil supply structure for a refrigerant compressor is connected to a main shaft of the refrigerant compressor. The oil supply structure has a concave recessed from a periphery to a center, an oil hole penetrating the center of the concave and in communication with an oil supply passage of... Agent: Industrial Technology Research Institute

06/16/2011 > patent applications in patent subcategories.

20110142702 - Rotary engine vane conduits apparatus and method of operation therefor: A rotary engine is described including: (1) a rotor located within a housing, the rotor configured with a plurality of rotor vane slots; (2) a vane separating an interior space between the rotor and the housing into at least a trailing chamber and a leading chamber, where the vane slidingly... Agent: Fibonacci International, Inc.

20110142703 - Variable displacement vane pump: A variable displacement vane pump including a relief valve which includes a valve bore, a spherical valve element in the valve bore, a valve seat fixed onto one axial side of the valve bore and having a through hole and an annular seat surface on which the valve element is... Agent: Unisia Jkc Steering Systems Co., Ltd.

20110142704 - Roller bearing assembly: A roller bearing assembly is configured to rotatably support a machine component connected with a shaft in a position relative to a reference component. The roller bearing assembly includes a radial bearing, an axially-displaceable axial bearing and an adjusting device configured to adjust an axial gap between the machine component... Agent: Aktiebolaget Skf

20110142705 - Rotary compressor: A rotary compressor is provided. The rotary compressor may include a plurality of cylinders each having a suction port formed such that an intersection of a center line of the suction port and a center line of a vane slot is positioned at a predetermined interval closer to the vane... Agent:

20110142706 - Noiseless pressure blower: The present invention relates to a noiseless pressure blower including a main body having an inlet port and an outlet port; a pressing member which rotates to suck in fluid from the inlet port; a control member which rotates in contact with the pressure member to prevent the sucked in... Agent:

06/09/2011 > patent applications in patent subcategories.

20110135523 - Sealed compressor with motor standard spacer providing bearing mount: A spacer is positioned between an outer periphery of a motor stator, and the inner periphery of a center shell for a sealed compressor. The spacer allows a relatively small diameter motor to be used in a relatively large diameter center shell. The spacer includes a bearing mount in a... Agent:

20110135524 - Self-sealing mechanism for scroll compressor: A self-sealing mechanism for a scroll compressor is disposed inside a frame of the scroll compressor at a position between a back-pressure chamber and a fixed scroll, including an accommodating space; a groove communicating the space with the chamber; a one-way valve disposed at one end of the space adjacent... Agent: Industrial Technology Research Institute

20110135525 - Non-eccentric engine: The present invention is an apparatus that includes a chamber rotor with a chamber and an extension rotor with an extension. The rotors are housed in a rotor case. A pressure cavity is at least transiently formed by the extension rotor and the chamber rotor. The present invention also includes... Agent:

20110135526 - Rotary compressor: A rotary compressor is provided. A suction hole is formed through a middle plate of the compressor to distribute refrigerant into both upper and lower cylinders. Coupling bolts having an appropriate length couple the cylinders to the middle plate. The length of the coupling bolts may be defined such that... Agent:

20110135527 - Low noise type balance shaft module: A balance shaft module equipped with a dual pump including a main oil pump and a sub-oil pump may include a pump rotor rotatably coupled to a housing, a discharge space formed in the housing for discharging oil in the sub-oil pump, a pulse chamber formed in the housing to... Agent: Kia Motors Corporation

20110135528 - Oil-free screw compressor: A screw compressor (10) provided with a compressor body (11), an oil supply tank (13), an oil supply line (60), and an oil recovery line (59), wherein the screw compressor is also provided with shaft seal sections (28, 41) located on opposite sides, in the direction of shafts (26, 38),... Agent: Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

20110135529 - Rotary compressor: Disclosed is a rotary compressor in which a connecting protrusion is formed at an inner circumferential surface of a vane chamber in which a connection tube is inserted, so as to increase a sealing area between the connection hole and the connection tube, and the size of the connection hole... Agent:

06/02/2011 > patent applications in patent subcategories.

20110129375 - Work extraction from downhole progressive cavity devices: A progressive cavity device and method of use are provided, the progressive cavity device comprising a hollow stator having a rotor shaft positioned therein. The rotor shaft is provided with rotating motion drive connections at both ends thereof.... Agent:

20110129376 - Pulse pressure decreasing type variable oil pump: A pulse pressure decreasing type variable oil pump may include an inner chamber rotatably receiving a vane therein, wherein an outer ring rotatably covers the inner chamber, a housing enclosing the outer ring, the inner chamber, and the vane therein and forming a narrow section between the housing and the... Agent: Kia Motors Corporation

20110129378 - Horizontal scroll compressor: The inside of a sealed container (50) of a horizontal scroll compressor is partitioned by a partition plate (80) into a space in which a compressor mechanism section and an electric motor are contained and into a discharge space (84) in which a discharge pipe (52) and an oil supply... Agent:

20110129377 - Scroll compressor and method for manufacturing the same: The present invention discloses a scroll compressor and a method for manufacturing the same. The scroll compressor comprises a housing assembly, a motor assembly, a major shaft supporting base, a rotating shaft, and a compressing assembly; the housing assembly comprises a bottom case and a top cover; the motor assembly... Agent: Hanbell Precise Machinery Co., Ltd.

Previous industry: Pumps
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