Patents by Inventor David W. McClung

David W. McClung 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).

  • Wall shape for scroll-type compressor vanes
    Patent number: 6220840
    Abstract: A fluid displacement apparatus is provided. The apparatus can be in the form of a scroll element for a scroll-type fluid compressor. The apparatus has first and second scrolls. The scrolls themselves, as well as the space between the scrolls may be defined by a spiral shape. The spiral shape may have either a constant pitch or a non-constant pitch.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: April 24, 2001
    Assignee: Sanden International (U.S.A.), Inc.
    Inventors: John L. Calhoun, David W. McClung
  • Scroll-type compressor with spirals of varying pitch
    Patent number: 5836752
    Abstract: A fluid displacement apparatus is provided. The apparatus can be in the form of a scroll element for a scroll-type fluid compressor. The apparatus has first and second scrolls. The scrolls themselves, as well as the space between the scrolls may be defined by a spiral shape. The spiral shape may have either a constant pitch or a non-constant pitch.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: November 17, 1998
    Assignee: Sanden International (U.S.A.), Inc.
    Inventors: John L. Calhoun, David W. McClung
  • Electrical connectors and IC chip tester embodying same
    Patent number: 5127837
    Abstract: A novel wadded wire-plunger contact is provided which possesses excellent durability and desired functional characteristics in a large variety of applications such as the testing of IC chips.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: July 7, 1992
    Assignee: Labinal Components and Systems, Inc.
    Inventors: Arun J. Shah, David W. McClung, Albert N. Hopfer, Richard J. Linderman, Saeed Zafar