Patents by Inventor Denise L. Domning

Denise L. Domning 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).

  • Permanently attachable key-activated on/off switch
    Patent number: 5071360
    Abstract: A permanently attachable key-activated on-off switch comprises a housing with an electrical receptacle on one end and an electrical plug on the other. The electrical receptacle receives a locking pin that is inserted through the prongs of the receptacle and an appliance plug in the receptacle so that the appliance plug is permanently attached. A key switch is attached to the housing which controls and the flow of power between the electrical plug and the electrical receptacle when the electrical plug is inserted into a standard electrical outlet.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: December 10, 1991
    Inventors: Edgar J. Lindow, Denise L. Domning
  • Permanently attachable key-activated on/off switch
    Patent number: 4969833
    Abstract: A permanently attachable key-activated on-off switch comprises a housing with an electrical receptacle on one end and an electrical plug on the other. The electrical receptacle receives a locking pin that is inserted through the prongs of the receptacle and an appliance plug in the receptacle so that the appliance plug is permanently attached. A key switch is attached to the housing which controls and the flow of power between the electrical plug and the electrical receptacle when the electrical plug is inserted into a standard electrical outlet.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: November 13, 1990
    Inventors: Edgar J. Lindow, Denise L. Domning