Patents by Inventor Leroy L. Hellgren

Leroy L. Hellgren 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).

  • High voltage, gas tight connector
    Patent number: 4509808
    Abstract: A socket wire connector for effecting a high-voltage, gas-tight joint betn an electrical wire and the connector. The socket side of the connector has a hemispherical portion soldered to one side of an electrical breadboard with a tapered, slotted cylindrical piece extending through the breadboard. An electrical wire may be inserted in the socket portion and the cap nut portion of the connector screwed onto the cylindrical piece to form a high-voltage gas-tight joint.
    Type: Grant
    Filed: March 18, 1983
    Date of Patent: April 9, 1985
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Leroy L. Hellgren