|Rotary expansible chamber devices patents - Monitor Patents|
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Rotary expansible chamber devicesBelow 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. 12/05/2013 > 3 patent applications in 3 patent subcategories.
20130323104 - Scavenge gear pump: A scavenge gear pump and its method of operation is described. The scavenge gear pump defines a pump chamber in which a pair of toothed gears are rotatably driven to pump an oil-air mixture from an inlet passage where the oil mixture is at low pressure, to an outlet passage... Agent:
20130323105 - Thrust plate for a horizontal scroll compressor and a horizontal scroll compressor having the same: A thrust plate for a compressor may include first and second ends and a feed hole. The first end may include a thrust surface. The second end may include a lubricant accumulation feature. The feed hole may extend between the lubricant accumulation feature and the thrust surface to provide communication... Agent: Emerson Climate Technologies, Inc.
20130323106 - Rotor for oil pump: A rotor for an oil pump according to the present invention is a rotor that includes an inner rotor configured by teeth, each of which has a plurality of ellipses or circles, and an outer rotor that is disposed on the outside of the inner rotor and has one tooth... Agent: Yamada Manufacturing Co., Ltd11/28/2013 > 7 patent applications in 6 patent subcategories.
20130315765 - Three stage scroll vacuum pump: A three stage vacuum pump has three stages of fixed scrolls and orbiting scrolls that operate simultaneously. A motor drives the second orbiting scroll within the third fixed scroll upon three equally spaced idlers. One idler then transmits rotation and torque into the second stage. The second orbiting scroll has... Agent:
20130315766 - Screw compressor unit: In a capacity-adjustable screw compressor unit, a thrust force caused by a reaction force of gas can be appropriately cancelled by a balance piston. A screw compressor unit of the present invention includes a compressor, having a pair of male and female screw rotors meshing with each other contained in... Agent: Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)
20130315767 - Scroll expander: Provided is a double rotation type scroll expander, aiming at protecting a bearing that supports drive shaft a drive shaft and the like from the heat of a working medium when a working medium introduction hole is provided in the drive shaft. The working medium introduction hole is drilled into... Agent: Anest Iwata Corporation
20130315768 - Scroll refrigeration compressor: The scroll compressor includes stationary and moving volutes each including a scroll plate provided with a spiral wrap, the spiral wraps defining the variable-volume compression chambers, a delivery conduit including a first end emerging in a central compression chamber and a second end designed to be communicated with a delivery... Agent: Danfoss Commercial Compressors
20130315769 - Scroll fluid machine: A seal groove is cut in the distal end face of a wrap of a fixed scroll, with a tip seal being fitted in the seal groove. Swelling members are interposed between both side faces of the tip seal and corresponding opposite side faces of the wrap. Condensed liquid of... Agent: Anest Iwata Corporation
20130315770 - Pump assembly for a vehicle: A pump assembly for a vehicle is disclosed. The pump assembly includes a housing defining a cavity extending along a central axis to present a wall disposed radially relative to the central axis and a base transverse to the central axis. The pump assembly also includes a first gear disposed... Agent: Gm Global Technology Operation LLC
20130315771 - Vane rotary type gas compressor: The present invention provides a vane rotary type gas compressor including a casing, a compressor main body provided within the casing and compressing a coolant sucked by rotary drive, and a drive power transmitter applying a rotary drive power to the compressor main body, and an outer peripheral wall of... Agent: Calsonic Kansei Corporation11/21/2013 > 8 patent applications in 7 patent subcategories.
20130309113 - Multiple stage passive variable displacement vane pump: The present invention is a multiple stage variable displacement vane pump comprising a pressure regulating spring guide. A first spring and a second spring may be controlled by said pressure regulating spring guide. The present invention does not require a solenoid or electronic control. Control of flow and speed is... Agent:
20130309114 - Sliding vane positive displacement pump: A sliding vane, positive displacement pump is provided which uses a fixed disc configuration wherein a rotor includes a pair of discs affixed to opposite faces of the rotor so as to rotate with the rotor/shaft. Preferably, the discs each have an outer diameter proximate the outer diameter of the... Agent: Delaware Capital Formation, Inc.
20130309115 - Fluid-actuated rotary drive device: A fluid-actuated rotary drive device is provided, with a housing (2) in which is formed a working chamber (3), in which is a swivel piston (18) able to swivel around a central axis (5). Also fitted or able to be fitted in the working chamber (3) is a space divider... Agent: Festo Ag & Co. Kg
20130309117 - Compressor having a lower frame and a method of manufacturing the same: A compressor having a lower frame and a method of manufacturing the same are disclosed. The compressor may include a cylindrical shell, a rotational shaft rotatably mounted in the cylindrical shell, a rotor and a stator that rotates the rotational shaft, a compression device driven by the rotational shaft, a... Agent:
20130309116 - Double rotation type scroll expander and power generation apparatus including same: A double rotation type scroll expander that expands steam includes a first drive scroll, a second drive scroll, a driven scroll, a rotation mechanism that supports the driven scroll rotatably, and a revolving mechanism that couples the driven scroll to the first drive scroll and the second drive scroll to... Agent: Anest Iwata Corporation
20130309118 - Scroll refrigeration compressor: The scroll compressor includes stationary and moving scrolls each including a scroll plate provided with a spiral wrap, the spiral wraps defining the variable-volume compression chambers, a separating plate mounted on the scroll plate of the stationary scroll and defining with the latter a first intermediate volume, and a delivery... Agent: Danfoss Commercial Compressors
20130309119 - Hermetic reciprocating compressor: Disclosed herein is a compressor in which oil retained in a hermetic case may be raised through an inner circumferential surface of a rotating shaft. The rotating shaft is provided with a hollow portion, and a fixation shaft with a spiral wing is inserted into the hollow portion to raise... Agent: Samsung Electronics Co., Ltd.
20130309120 - Double internal gear wheel pump: A double internal gear wheel pump includes two internal gear wheel pumps configured as hydraulic pumps of a hydraulic, slip-controlled vehicle braking system. The double internal gear wheel pump further includes a partition wall that is arranged between both internal gear wheel pumps. The partition wall is configured as a... Agent: Robert Bosch Gmbh11/14/2013 > 6 patent applications in 4 patent subcategories.
20130302196 - Multi-channel, rotary, progressing cavity pump: A multi-channel, rotary, progressing cavity pump comprising a housing having an outer wall defined by overlapping cylindrical chambers, a first end wall defining an inlet port, and a second end wall defining an outlet port, said inlet and outlet ports communicating with each chamber; meshed, lobed rotors disposed within said... Agent:
20130302197 - Scroll refrigeration compressor: The scroll refrigeration compressor includes a sealed casing, stationary and moving volutes including spiral wraps engaged in one another and defining the variable-volume compression chambers, a delivery chamber defined by the plate of the stationary volute and the sealed casing, a heat shield disposed in the delivery chamber and dividing... Agent: Danfoss Commercial Compressors
20130302198 - Scroll refrigeration compressor: The scroll refrigeration compressor includes a stationary volute and a moving volute provided with spiral wraps defining variable-volume compression chambers, a separating member sealably mounted on a plate of the stationary volute so as to allow a relative movement between the separating member and the stationary volute, a delivery chamber... Agent: Danfoss Commercial Compressors
20130302199 - Scroll expander: In a double rotation type scroll expander having double expansion chambers, a single integrated drive shaft is disposed to penetrate the interior of a housing, the double expansion chambers are formed by a drive scroll body and a driven scroll body, and a working medium introduction hole is provided in... Agent: Anest Iwata Corporation
20130302200 - Scroll type fluid machine, method and device for forming elastic coating thereon: A coating solution that contains 10 to 20% by weight of epoxy resin serving as a thermosetting resin, 20 to 30% by weight of MoS2, and 5 to 10% by weight of graphite, with a remainder thereof constituted by an organic solvent, is sprayed onto a wrap portion side face... Agent:
20130302201 - Gear pump: A gear pump has a face plate 2 cooperating with central plate 24 defining a pump chamber 21 holding gears 16. The pump chamber 21 is in fluid communication with drive chamber 32 holding the rotor 40 of an electric motor. An O-ring 18 may be used to seal the... Agent:Previous industry: Pumps
Next industry: Powder metallurgy processes
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