Patents by Inventor Neal G. Marchal

Neal G. Marchal 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 sound attenuation
    Patent number: 5538408
    Abstract: A scroll-type machine has a motion controlling member for preventing relative rotation between a first and a second scroll member while allowing relative orbiting motion therebetween. The scroll-type machine includes a novel arrangement of a spring or other flexible member for biasing the motion controlling member in a specific direction. The biasing of the motion controlling member operates to reduce the mechanical impact noise or rattle which is caused by the vibration of the machine's operating components.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 23, 1996
    Assignee: Copeland Corporation
    Inventors: Jaroslav Blass, Neal G. Marchal, Gary J. Anderson, Frank S. Wallis, Kenneth J. Monnier, Kent E. Logan, Steven C. Fairbanks
  • Scroll machine sound attenuation
    Patent number: 5527167
    Abstract: A scroll-type machine has a motion controlling member for preventing relative rotation between a first and a second scroll member while allowing relative orbiting motion therebetween. The scroll-type machine includes a novel arrangement of a spring or other flexible member for biasing the motion controlling member in a specific direction. The biasing of the motion controlling member operates to reduce the mechanical impact noise or rattle which is caused by the vibration of the machine's operating components.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: June 18, 1996
    Assignee: Copeland Corporation
    Inventors: Jaroslav Blass, Neal G. Marchal, Gary J. Anderson, Frank S. Wallis, Kenneth J. Monnier, Kent E. Logan, Steven C. Fairbanks
  • Scroll machine sound attenuation
    Patent number: 5403172
    Abstract: A scroll-type machine has a motion controlling member for preventing relative rotation between a first and a second scroll member while allowing relative orbiting motion therebetween. The scroll-type machine includes a novel arrangement of a spring or other flexible member for biasing the motion controlling member in a specific direction. The biasing of the motion controlling member operates to reduce the mechanical impact noise or rattle which is caused by the vibration of the machine's operating components.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: April 4, 1995
    Assignee: Copeland Corporation
    Inventors: Jaroslav Blass, Neal G. Marchal, Gary J. Anderson, Frank S. Wallis, Kenneth J. Monnier, Kent E. Logan, Steven C. Fairbanks