Patents by Inventor Joseph L. Abell

Joseph L. Abell 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).

  • Circuit breaker
    Patent number: 4048608
    Abstract: A double break, trip free circuit breaker is disclosed which is compensated for variations in ambient temperature. A biased rocker arm carries a contact bridging bar at one end and engages a heater/bimetal or electromagnetic back at the other. A segmented reset plunger allows for a manual trip capability in addition to circuit breaking even when the plunger is held in the reset position. High current handling capabilities result from the separating of the heater/bimetal circuit from the main current flow path.
    Type: Grant
    Filed: November 25, 1975
    Date of Patent: September 13, 1977
    Assignee: Aiken Industries, Inc.
    Inventors: William P. Riendeau, Robert R. Blevins, Joseph L. Abell