Rotary expansible chamber devices inventions 04/07

20070092390 - Scroll compressor: A scroll compressor has a fluid pressure biasing system for both the orbiting scroll member and the non-orbiting scroll member. The biasing system can utilize a pressurized gas from the pocket of the scroll compressor or it can utilize an external pressurized oil source. In an additional embodiment, a hydrostatic... Agent: Harness, Dickey & Pierce, P.L.C

20070092391 - Horizontal scroll compressor: A horizontal scroll-type compressor utilizes the pressure differential between the discharge pressure and the suction pressure to route lubricant from the discharge chamber to the components within the intake chamber. The compressor may utilize a lubricant separator within the discharge chamber to separate the working fluid from the lubricant prior... Agent: Harness, Dickey & Pierce, P.L.C

20070092392 - Internal gear pump: An internal gear pump includes a recessed portion communicating with each corresponding interproximal space and defined in a way that the inlet port and the outlet port are prevented from communicating with each corresponding interproximal space at the position where each corresponding interproximal space attains the maximum volume. The recessed... Agent: Reed Smith LLP

20070092393 - Gas release port for oil-free screw compressor: A gas release port and methods of fabricating such port are described herein. In an example embodiment, the gas release port is for an oil-free compressor. The compressor includes a compressor housing with a compression chamber having at least one rotor bore therein. The housing also has an inlet nozzle... Agent: John S. Beulick (17851)

20070086907 - Gearwheel and method for manufacturing a gearwheel: The invention concerns a gearwheel (1) with a gear rim (2) and an insert (3) whose external diameter (d3) is greater than half of the external diameter (d1) of the gearwheel (1), wherein the insert (3) is surrounded by injection molding by means of a cone mold during the manufacture... Agent: Nath & Associates, PLLC

20070086908 - Volumetric screw compressor: Volumetric compressor comprising a casing forming an intake chamber and a delivery chamber, a pair of screw rotors coming between the intake chamber and delivery chamber, a container for containing a high-pressure fluid, associated with the casing, a capacity regulating device associated with the casing, which includes a slide valve... Agent: Ip Strategies

20070077159 - Scroll fluid machine: A scroll fluid machine comprises a housing having a fixed scroll and an orbiting scroll revolved by a driving shaft which is driven by a motor behind the housing. A blowing fan is provided between the orbiting scroll and the motor. Rotation of the fan causes decompression in the housing... Agent: Ostrolenk Faber Gerb & Soffen

20070077160 - Scroll compressor with slider block having upper surface over enlarged area: A scroll compressor has a novel slider block with an upper surface that extends for a greater extent than the prior art. By extending this upper surface, the upper surface is better able to withstand wear on the slider block during the life of the scroll compressor.... Agent: Carlson, Gaskey & Olds, P.C.

20070077161 - Compressor for refrigerant: To improve a compressor for refrigerant, comprising an outer casing, a scroll compressor disposed in the outer casing, a drive unit, disposed in the outer casing, for the second compressor body, having an eccentric drive, a drive shaft running in lying arrangement or approximately horizontally in the outer casing and... Agent: Reinhart Boerner Van Deuren P.C.

20070077162 - Oil-cooled screw compressor: In an oil-cooled screw compressor comprising, a compressor body including a pair of a male rotor and a female rotor, a motor including a stator and a motor rotor connected to one of the male and female rotors, and an oil separator container for gathering the oil from a mixture... Agent: Antonelli, Terry, Stout & Kraus, LLP