Patents by Inventor Timothy E. Hewitt

Timothy E. Hewitt 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).

  • Power source transfer lockout circuit
    Patent number: 6034445
    Abstract: Electrical loads are powered by one of several different power sources through a selector switch. A monitoring circuit monitors the different power sources to sense a change of state, that is, power up or shut down. Such a change indicates that the selector switch is likely to be operated to select a new power source. The monitoring circuit shuts down certain loads to limit current surges when the new power source is connected.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: March 7, 2000
    Assignee: White Consolidated Industries, Inc.
    Inventor: Timothy E. Hewitt