Rotary expansible chamber devices inventions 05/07

20070122302 - Ductile cast iron scroll compressor: A scroll compressor includes a scroll member having a base and a generally spiral wrap that extends from the base to define a portion of a compression chamber. The scroll member is made of a cast iron material comprising a microstructure having graphite nodules.... Agent: Carlson, Gaskey & Olds, P.C.

20070122303 - Oil pump of scroll compressor: An oil pump of a scroll compressor is provided. The oil pump includes a pump body to which a drive shaft is inserted; a gear unit inserted to a lower side of the pump body and rotating by the rotation of the drive shaft; and a pump cover coupled to... Agent: Greenblum & Bernstein, P.L.C

20070116589 - Method and apparatus for compressor re-manufacture: In a method of repairing a scroll compressor, the casing 100 of the compressor is cut open by making two transverse cuts through the casing to give access to the internal components of the compressor. The casing 100 is then resealed, using two annular reinforcing structures 300, one at each... Agent: Nixon & Vanderhye, PC

20070110604 - Scroll machine: A scroll machine includes a shell defining a discharge chamber, a first scroll member having a first spiral wrap projecting outwardly from a first end cap, a second scroll member having a second spiral wrap projecting outwardly from a second end cap intermeshed with the first spiral wrap, and a... Agent: Harness, Dickey & Pierce, P.L.C

20070110605 - Scroll compressor: A scroll compressor has a moving scroll and a stationary scroll in contact with each other A seal ring for defining a back pressure space at a rear side of the moving scroll is provided and its position is adjusted between a sealing position and a leakage position with respect... Agent: GlobalIPCounselors, LLP

20070110606 - Variable speed air blowing system: A fluid compression system includes a compressor unit that directs a flow of compressed fluid to a first heat exchanger. A second heat exchanger receives a flow of coolant. A blower produces a flow of ambient air that passes through the first heat exchanger and the second heat exchanger so... Agent: Michael Best & Friedrich, LLP

20070104602 - Scroll fluid machine: A scroll fluid machine comprises a fixed scroll, an orbiting scroll and a plurality of self-rotation preventing device for preventing the orbiting scroll from rotating on its own axis. On the rear surface of the orbiting scroll, a reinforcement bearing plate is fixed with a central bolt and an outer... Agent: Davis & Bujold, P.l.l.c.

20070104604 - Scoll fluid machine: A scroll fluid machine includes a stationary scroll having a spiral wrap formed on an end plate and a moving scroll having a spiral wrap formed on an end plate. A polymer actuator for adjusting the amount of space between the wrap and the end plate is disposed in a... Agent: GlobalIPCounselors, LLP

20070104603 - Scroll and manufacture method therefor: Disclosed herein is a scroll for scroll compressor, comprising an orbiting and a stationary spiral each composed of a spiral body and a base plate, in which one of the spirals is made of metal and the other is made of elastic and plastic material to provide a mutual axial... Agent: Synnestvedt & Lechner, LLP

20070098584 - Compact fluid pump having a simplified structure: A fluid pump includes a housing having a sealed interior space, at least one drive gear mounted in the interior space of the housing for driving a fluid, a magnetically inductive member coupled to the drive gear, and a stator device mounted outside the housing and located corresponding to the... Agent: Birch Stewart Kolasch & Birch

20070098585 - Vacuum pump: A vacuum pump includes a housing assembly having an oil-reservoir chamber in which a lubricating oil is stored; a pair of screw rotors disposed in the housing assembly and engaged with each other; a pair of rotary shafts connected to the rotors, respectively; a plurality of bearings supporting each of... Agent: Morgan & Finnegan, L.L.P.

20070098586 - Fuel pump: A spur-gear type fuel pump for vehicles is disclosed having a pair of interengaged gears contacting an interior surface of a pump body cavity for capturing fuel between teeth of the gears and the interior surface. The gears have a concentrically ground face that is flush against and slides over... Agent: Fitch Even Tabin And Flannery