Patents by Inventor William McGill, Jr.

William McGill, Jr. 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).

  • Patent number: 6536074
    Abstract: A conversion valve arrangement for converting a vacuum cleaner from floor use to off-the-floor use. A valve door located in the suction duct leading from the nozzle body shuts off the suction airstream to the nozzle body when the vacuum cleaner is moved into the upright stored position. A projection on the motor housing located beneath the handle engages a resilient member cooperating with a crank arm on the valve door to close the valve door when the handle is moved to the upright position. The resilient member is comprised of a front valve arm and a rear valve arm pivotally linked together. The motion of the rear valve arm is transmitted to the front valve arm in one direction by a stop. The motion of the rear valve arm is transmitted to the front valve arm in the opposite direction by the stiffness of a spring disposed between them.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: March 25, 2003
    Assignee: The Hoover Company
    Inventors: David J. Boles, Nick M. Bosyj, Jeffery S. Louis, Gregg A. McAllise, William McGill, Jr., Dave O'Neal