Patents by Inventor William W. Wolkoff

William W. Wolkoff 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).

  • Heater safety mechanism
    Patent number: 4906818
    Abstract: A safety mechanism for disabling a portable room heater. A lever which extends from the heating face of the heater is coupled with a shut-off switch. Movement of the lever resulting from draping of an object over the heater opens the switch and shuts off the heater. A buzzer may be wired in parallel with the switch to provide an audible alarm when the switch opens.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: March 6, 1990
    Assignee: Toastmaster, Inc.
    Inventors: Charles H. Lumpp, William W. Wolkoff