Patents by Inventor Charles F. Elbert

Charles F. Elbert 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).

  • Section insulator with improved arc control
    Patent number: 4320820
    Abstract: An improved trolley system section insulator having a main support insulator, end support insulators attached to trolley wires and an intermediate runner member. The runner member is formed of two spaced conductive portions which are attached to the main support insulator by studs extending upwardly through the main support insulator, the studs being electrically connected together at their uppermost ends, thereby forming 90.degree. changes in direction of the current paths which exist when arcs are formed. The path changes produce magnetic fields which tend to blow the arcs downwardly, protecting the insulator portions from arc damage.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: March 23, 1982
    Assignee: Harvey Hubbell Incorporated
    Inventor: Charles F. Elbert