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Rotary expansible chamber devices

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.
01/22/2015 > 3 patent applications in 2 patent subcategories.

20150023824 - Scroll-type expander and fluid machine provided with same: To provide a scroll-type expander having a relatively simple structure, small energy loss, and high durability and reliability. A pump-integrated expander 27 includes an expansion unit 50 configured as a scroll-type expander. In the expansion unit 50, a working fluid passage 51e extending from a suction port 51c open to... Agent: Sanden Corporation

20150023826 - Screw compressor: Screw compressor with a compression chamber that is formed by a compression housing, in which a pair of meshed helical compressor rotors in the form of a screw are rotatably mounted and with a drive motor that is provided with a motor chamber formed by a motor housing, in which... Agent:

20150023825 - Volumetric screw compressor: The present invention concerns a compression device (1) suited to compress a gas, of the type comprising: a main body (30; 130, 230; 330) suited to define a compression chamber (2) provided with an inlet (32) for the gas; a liquid for compressing the gas, suited to be injected in... Agent:

01/15/2015 > 9 patent applications in 9 patent subcategories.

20150017042 - High torque rotary motor: The present invention relates to a rotary motor, comprising a plurality of vanes, an inner rotary member housing the plurality of vanes projecting from a central rotation axis of the inner rotor, a multi lobe member encompassing the inner rotary member and the plurality of vanes, where the multi lobe... Agent:

20150017043 - Powder metal with solid lubricant and powder metal scroll compressor made therefrom: A powder metal formulation includes a solid lubricant and is particularly useful for the production of powder metal scroll compressors.... Agent: Gkn Sinter Metals, LLC

20150017044 - Rotary piston engine and method for producing a rotary piston engine: A rotary piston engine comprises a stationary housing and a piston movably accommodated in the housing. The housing and the piston form at least one chamber with a chamber surface. At least one partial portion of the chamber surface has a thermal barrier coat for reducing a thermal conductivity of... Agent:

20150017045 - Vacuum pump of vehicle for reducing operation noise: A vacuum pump of a vehicle for reducing operation noise may include a rotor rotating in a space defined by a housing formed in a pump body at an eccentric position relative to a center of the space, a vane installed to the rotor to rotate eccentrically in the space,... Agent: Hyundai Motor Company

20150017046 - Rotary compressor having gate axially movable with respect to rotor: A rotary compressor having a housing and a rotor positioned within an internal cavity of the housing. The rotor being configured to rotate about a rotor axis of rotation eccentric to a housing longitudinal axis. A gate is also provided that is slidably mounted therewith the rotor and movable axially... Agent:

20150017047 - Stators for downhole motors, methods for fabricating the same, and downhole motors incorporating the same: The present invention recites a method of fabricating a stator for a downhole motor, the method comprising the steps of providing a stator tube having an interior surface and applying a bonding agent to the interior surface of the stator tube. Additionally, a mandrel is positioned within the stator tube,... Agent:

20150017048 - Single flight screw, a single flight high pressure screw pump and compactor containing such a pump: A single flight screw, a single flight high pressure screw pump and the use of the pump in a compactor for compacting and dewatering debris commonly found in waste water. The bore, screw diameter and the flight spacing are constant and the compression force is mostly axial. The work is... Agent:

20150017049 - Oil pump: An oil pump of the present invention includes a housing (10, 20), a rotary shaft (30) which is supported by the housing, an inner rotor (71, 81) which is rotated in the housing integrally with the rotary shaft, an outer rotor (72, 82) which is rotated in the housing as... Agent: Mukuni Corporation

20150017050 - Rotary vane motor: The present invention relates to a rotary motor, comprising a plurality of vanes, wherein each of the vanes is split into two subvanes, one or more elastic members, wherein the elastic member is configured to push each of the subvanes foil ling a vane toward an end plate to form... Agent:

01/08/2015 > 6 patent applications in 6 patent subcategories.

20150010416 - Controller for varying flow rate from fixed displacement pump: A controller for varying flow rate of a fluid from a fixed displacement pump is provided. The controller includes a pump speed control gear set, a ratio control pump, and a relief valve. The pump speed control gear set includes a sun gear configured to be driven by a prime... Agent:

20150010417 - Scroll compressor: Disclosed herein is a scroll compressor in which refrigerant is compressed in a compression chamber while the volume of the compression chamber is gradually decreased due to relative rotation of a fixed scroll and an orbiting scroll. In accordance with the disclosure, the scroll compressor is provided in which a... Agent:

20150010418 - Inverted air compressor: In many fields, such as manufacturing and mining, compressed air is used as a power source for industrial equipment, hand power tools, etc. Extensive compressed air systems are installed in these environments to supply compressed air where it is needed. In mining, extensive belts are frequently used to move mined... Agent:

20150010419 - Pump: A pump has a suction region, a pressure region, and a pressure space which has an outflow region. A rotor is connected to a shaft in which rotor delivery elements are displacably received. The rotor has expelling regions connected to the pressure region by way of a first fluid path.... Agent:

20150010420 - Oil pump: An oil pump of the present invention includes a housing (10, 20) which includes an inlet port (44b) to suck oil, a discharge port (52) to discharge oil, and a purge port (24) to eject air-mixed oil, an inner rotor (71, 81) which is arranged in the housing as being... Agent:

20150010421 - Sealing element for rotary compressor: A sealing assembly for use in a rotary compressor having a housing and a rotor. The sealing assembly includes a sealing element and a spring positioned circumferentially around the sealing element. The sealing assembly is positioned in a slot formed in the housing, with at least one surface of the... Agent: Torad Engineering, LLC

01/01/2015 > 4 patent applications in 3 patent subcategories.

20150004038 - Adjustable core turbocharger: A turbocharger is provided herein. The turbocharger includes a housing and an adjustable core at least partially circumferentially surrounded by the housing, the adjustable core having a turbine rotor coupled to a compressor rotor via a shaft. The turbocharger further includes an adjustment mechanism coupled to the adjustable core configured... Agent:

20150004037 - Ristau orbital engine: A rotary thermal engine for generating mechanical energy. The rotary thermal engine includes an engine block having an enclosed interior space, a first rotor and a second rotor, a first disc coupled to the first and second rotor. A second disc is positioned between the first and second rotor, wherein... Agent:

20150004039 - Capacity-modulated scroll compressor: A compressor may include a shell defining an internal volume containing compressed working fluid and first and second scrolls disposed within the internal volume. The first scroll may include a first spiral wrap. The second scroll may include a second spiral wrap, a suction inlet opening and a capacity-modulation aperture.... Agent:

20150004040 - Scroll compressor: A scroll compressor includes a compression mechanism having fixed and orbiting scrolls engaged with each other to form a compression chamber. Each of the fixed and orbiting scrolls includes an end plate and a spiral wall-shaped wrap extending from the end plate. The fixed scroll has an injection port configured... Agent:

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