Patents by Inventor Preston C. Hazzard

Preston C. Hazzard 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).

  • Gas refrigerant compressor including ported walls and a piston of unitary construction having a domed top
    Patent number: 4610606
    Abstract: A gas refrigerant compressor comprises a shaft having a first portion and an offset portion. A body supports the first portion of the shaft for rotating movement around an axis of rotation and defines a compression chamber. A compression member is adapted for reciprocating movement within the compression chamber. The compression member is connected to the offset portion of the shaft such that rotating the shaft draws gas refrigerant into the compression chamber upon movement of the compression member toward the axis of rotation and exhausts compressed gas refrigerant out of the compression chamber upon movement of the compression member away from the axis of rotation.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: September 9, 1986
    Assignee: HCH Development, Inc.
    Inventors: Preston C. Hazzard, Chris N. Hazzard