Patents by Inventor Raymond F. Chick

Raymond F. Chick 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).

  • Darlington transistor switching circuit for reactive load
    Patent number: 4013904
    Abstract: A Darlington transistor circuit for switching a reactive load is disclosed. The input transistor is selected to have a sustaining or breakover voltage appreciably less than the output transistor such that the circuit operates with the input transistor in an unclamped mode and the output transistor clamped by the input transistor below its sustaining voltage level to prevent secondary breakdown of the output transistor caused by the swicthing off of the transistor circuit.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: March 22, 1977
    Assignee: Westinghouse Electric Corporation
    Inventor: Raymond F. Chick