Patents by Inventor Frank Shue Wallis

Frank Shue Wallis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Scroll machine with reverse rotation sound attenuation
    Patent number: 6106251
    Abstract: A scroll compressor has a wedge camming device operable between the orbiting scroll of the scroll compressor and a fixed wall forming part of the compressor, for the purposes of automatically engaging the wall and the orbiting scroll upon reverse operation of the compressor to thereby separate the wraps of orbiting and non-orbiting scroll during such reverse operation. Damage to the compressor in the event of powered reverse is also prevented.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: August 22, 2000
    Assignee: Copeland Corporation
    Inventors: Kenneth Joseph Monnier, Frank Shue Wallis, Randall Joseph Velikan
  • Compressor reed valve
    Patent number: 6044862
    Abstract: A valve assembly has a discharge valve member and a suction valve member. One of these valve members includes a reed valve. The reed valve has a tab which includes a slot which engages a cantilevered pin. The cantilevered pin allows flexing of the pin upon contact with the reed valve. In addition, the cantilever mounting of the pin provides a lubricant reservoir for lubricating the interface between the pin and the reed valve.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: April 4, 2000
    Assignee: Copeland Corporation
    Inventors: Stanley P. Schumann, Frank Shue Wallis, Jason Patrick Beresik, Ernie Roger Bergman, Deborah Louise Monnin
  • Scroll machine with reverse rotation sound attenuation
    Patent number: 5772415
    Abstract: A scroll compressor has a wedge camming device operable between the orbiting scroll of the scroll compressor and a fixed wall forming part of the compressor, for the purposes of automatically engaging the wall and the orbiting scroll upon reverse operation of the compressor to thereby separate the wraps of orbiting and non-orbiting scroll during such reverse operation. Damage to the compressor in the event of powered reverse is also prevented.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: June 30, 1998
    Assignee: Copeland Corporation
    Inventors: Kenneth Joseph Monnier, Frank Shue Wallis, Randall Joseph Velikan