Patents by Inventor Everett A. Bernhardt

Everett A. Bernhardt 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).

  • Switch housing with resilient retainers
    Patent number: 5004879
    Abstract: A switch housing in which a cylindrical hollow body of the housing has attached wing elements, each in the form of a partial cylinder and resiliently movable radially and circumferentially of the body, varying the overall transverse dimension of the housing so that the housing may be removably inserted into cavities of various sizes or non-uniform bore, with the wing elements biased to exert outward force against the interior of a cavity. The wing elements may define exterior threads to aid in retention of the housing in a cavity, and a head of the housing preferably defines a chamfered radially extending flange to limit insertion of the housing, and grooves to aid in removing the housing from a cavity.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: April 2, 1991
    Assignee: Sentrol, Inc.
    Inventors: Everett A. Bernhardt, Robert C. Winters