Patents by Inventor Stephen L. Lessie

Stephen L. Lessie 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).

  • Spring life improvement
    Patent number: 5719454
    Abstract: A backing ring has a reduced diameter portion surrounded by a spring which engages the backing ring and a stop to normally keep the stop and backing ring separated by a small distance while maintaining a desired bias on the bearing system which is engaged by the backing ring. Movement of the bearing is limited by the small distance which also limits flexure and therefore improves the fatigue life of the spring.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: February 17, 1998
    Assignee: Carrier Corporation
    Inventors: Mickey L. Halsey, Steven J. Holden, Stephen L. Lessie
  • Scroll machine with anti-rotation mechanism
    Patent number: 4795323
    Abstract: The diameter of an orbiting scroll plate is increased and the periphery of the plate is notched or scalloped to clear the bolt bosses or spacers located between the fixed scroll and crankcase. The bolt bosses act as guides for the notches in the orbiting scroll plate to thereby create an anti-rotation mechanism. Because the anti-rotation structure is on the periphery of the plate, a greater thrust surface is available.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: January 3, 1989
    Assignee: Carrier Corporation
    Inventor: Stephen L. Lessie