Patents by Inventor Leonelo A. Calciolari

Leonelo A. Calciolari 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).

  • Noise damper for hermetic compressors
    Patent number: 5443371
    Abstract: A noise suppressor for hermetic compressors comprises a one piece elongate damper element twisted in the form of a helix, with adjustable pitch for the noise frequency band that one wishes to damp. The damper element is designed to be inserted in a gas passage duct of small hermetic refrigeration compressors, for the purpose of reducing the noise emitted by the compressor, by the opening and closing movements of the suction valve and by the flow of refrigerant gas.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: August 22, 1995
    Assignee: Tecumseh Products Company
    Inventor: Leonelo A. Calciolari