Patents by Inventor Ronald Norman Morris

Ronald Norman Morris 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).

  • Cryogenic refrigerator drive
    Patent number: 5735128
    Abstract: A drive for driving a displacer in a cryogenic refrigerator includes a rotatable cam having a cam surface. The cam is rotatable about a pivot point with a cam follower contacting the cam surface. Rotational motion of the cam is converted into reciprocating motion of the cam follower. A displacer rod is coupled between the cam follower and the displacer for transferring the reciprocating motion of the cam follower to the displacer for driving the displacer.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: April 7, 1998
    Assignee: Helix Technology Corporation
    Inventors: Yueli Zhang, Ronald Norman Morris, David Christopher Giusti