Patents Represented by Attorney Bachman & LaPonite, P.C.

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  • Compressor
    Patent number: 6969242
    Abstract: To counter downstream oil infiltration through a shaft seal, a small portion of the compressed fluid is diverted from downstream to upstream through a passageway in a rotor. The diverted fluid is introduced to a space at a downstream side of the seal. An exemplary implementation is in a compressor having a central male rotor intermeshed with a pair of female rotors. The seal is located at an upstream (inlet) end of the lobed working portion of the male rotor.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: November 29, 2005
    Assignee: Carrier Corpoation
    Inventors: Donald Yannascoli, Stephen L. Shoulders