|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. 02/27/2014 > 3 patent applications in 3 patent subcategories.
20140056745 - Fixed-vane positive displacement rotary devices: A fixed vane positive displacement rotary device is disclosed that includes a primary rotor and one or more scavenging rotors rotatably disposed in a rotor encasement. The primary rotor includes a plurality of protrusions. And each of the scavenging rotors includes a first curved surface that is configured to move... Agent: Mallen Research Limited Partnership
20140056746 - Elliptical gear pump fluid driving apparatus: Elliptical or oval shaped gears of a positive displacement gear pump are disclosed. The gears have specially designed teeth at the ends of the gears' major and minor diameter axes. For example the teeth at the ends regions of the major diameter axes include radially extending wipers or vanes that... Agent: Roper Pump Company
20140056747 - Rotational clap suction/pressure device: The present invention relates to a simple and straightforward positive displacement suction/pressure device (rotational clap suction/pressure device) for utilizing in general industrial flow machines, such as various positive displacement pumps, vacuum pumps, compressors, flow meters, and rotary internal combustion engines. The object of the present invention using a double non-uniform... Agent:02/20/2014 > 3 patent applications in 3 patent subcategories.
02/13/2014 > 5 patent applications in 5 patent subcategories.
20140044579 - Rotary diaphragm pump: The rotary diaphragm pump has a flexible, resilient diaphragm band surrounding an elliptical frame within a case having four chambers surrounding an elliptical core. An articulating mechanism has a plurality of wheels traveling along the elliptical edges of the frame. The mechanism extends and retracts as the wheels move from... Agent: Kuwait University
20140044580 - Rotary volumetric machine: A rotary volumetric machine having a stationary structure; a rotor, which can turn with respect to the stationary structure about a principal axis of rotation; a work chamber formed within said rotor; a disk, which is housed in said work chamber and can turn with respect to the stationary structure... Agent: Captech S.r.l.
20140044581 - Rotary compressor and rotation mechanism: A rotary compressor, comprising: a housing (12), comprising a lubricant oil storage part for containing lubricating oil; a compression mechanism (20) disposed in the housing (12); a driving mechanism (30) driving the compression mechanism (20), the driving mechanism (30) comprising a rotation shaft (50), through-holes (54, 56) extending along the... Agent: Emerson Climate Technologies (suzhou) Co., Ltd.
20140044582 - Scroll compressor having adjustable spacers: A scroll compressor 40 comprises: housing 12, orbiting scroll 26 and fixed scroll 41. The drive shaft 14 has an eccentric shaft portion 18 so that rotation of the eccentric shaft portion imparts an orbiting motion to the orbiting scroll relative to the fixed scroll. Axial spacers 42 are located... Agent: Edwards Limited
20140044583 - Process for manufacturing casing, and vacuum pump: Damage of a rotor and a side plate are suppressed with a simple construction to prevent reduction in durability of a vacuum pump. A casing manufacturing method comprises a step (step S2) of disposing a cylinder liner forming a cylinder chamber in a mold, and casting a casing main body... Agent: Nabtesco Automotive Corporation02/06/2014 > 6 patent applications in 4 patent subcategories.
20140037483 - Method of active oil management for multiple scroll compressors: A method of operating a refrigeration system uses a plurality of compressors in connected parallel. The method includes returning refrigerant and oil to the compressors, the refrigerant also having oil entrained therein, separating the oil entrained in the refrigerant, and returning more of the oil entrained in the refrigerant to... Agent: Bitzer Kuehlmaschinenbau Gmbh
20140037484 - Oil equalization configuration for multiple compressor systems containing three or more compressors: A method of operating a refrigeration system having at least three compressors, in which each compressor has an oil sump with oil at an oil level. The method includes separately connecting the oil sumps of the at least three compressors. Each separate connection allows oil flow only between the oil... Agent: Bitzer Kuehlmaschinenbau Gmbh
20140037486 - Compressor having capacity modulation or fluid injection systems: A compressor may include a fluid-injection source, a shell, and first and second scroll members. The shell may define a suction pressure region. The first scroll member may include a first end plate and a first scroll wrap extending therefrom. The second scroll member may include a second end plate... Agent: Emerson Climate Technologies, Inc.
20140037485 - Refrigerant scroll compressor for motor vehicle air conditioning systems: A refrigerant scroll compressor for a motor vehicle air conditioning system having a fixed scroll, an orbiting scroll engaging with the fixed scroll, wherein the fixed scroll and the orbiting scroll cooperate to compress a refrigerant gas. An intermediate pressure chamber is disposed adjacent the orbiting scroll, an oil return... Agent: Visteon Global Technologies, Inc.
20140037487 - Gerotor device roller pocket geometry: A gerotor device includes a rotor having outwardly extending teeth and a stator having inwardly extending teeth. The inwardly extending teeth are formed by rollers each of which is received in a respective roller pocket in the stator. Each roller pocket has a maximum pocket width measured perpendicular to a... Agent: White Drive Products, Inc.
20140037488 - Vane-type compressors and expanders with minimal internal energy losses: Current piston based air-conditioning system compressors only have isentropic efficiencies near 50%. Making internal leakage and friction negligible, via detailed design of the vane machine, would almost halve power consumption. In addition, by recovering expansion energy that is normally wasted via an expander, the system Coefficient of Performance COP can... Agent:Previous industry: Pumps
Next industry: Powder metallurgy processes
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