Patents by Inventor Charles Donald Willenbring

Charles Donald Willenbring 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).

  • Lighting apparatus for a vacuum cleaner
    Patent number: 7328479
    Abstract: A lighting device for a vacuum cleaner is provided with a cleaning attachment, a housing adapted to attach to the cleaning attachment, and at least one lighting device. The lighting device is further provided with an electric circuit including a battery and a switch operably connected to the battery and the lighting device to regulate electric current between the battery and the lighting device. The lighting device includes a timing device adapted to deactivate the lighting device after a predetermined amount of time after activation by the switch.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: February 12, 2008
    Assignee: Electrolux Home Care Products Ltd.
    Inventor: Charles Donald Willenbring