Patents by Inventor William F. Shanahan

William F. Shanahan 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: 7243771
    Abstract: A clutch assist mechanism for reducing the amount of application force required to actuate a hand clutch of a vehicle. A clutch lever of the hand clutch is pivotable about a pivot axis and the vehicle includes a handle grip. The clutch assist mechanism includes a telescopic bar having a terminal end. The telescopic bar is movably mounted to the hand clutch generally parallel to a longitudinal hand clutch axis. The terminal end is movable between a withdrawn position and an extended position. The terminal end is located a first distance from the pivot axis in the withdrawn position and a second distance from the pivot axis in the extended position. The second distance is greater than the first distance. A mounting mechanism movably mounts the telescopic bar to the hand clutch.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: July 17, 2007
    Inventor: William F. Shanahan
  • Patent number: 3971543
    Abstract: A tool for fishing electrical wires through walls includes a magnetically attractable sensor assembly having a contactor element secured through a connecting sleeve to one end of a length of chain. The other end of the chain carries a fastener member which can be secured to a line or wire or the like for suspending the sensor assembly within a wall. A substantially hollow cylindrical member which serves as a housing for the sensor assembly when the tool is not in use has a magnet fixed within one end thereof. In use, the end of the cylindrical housing member which carries the magnet is inserted through a small hole in the wall to attract the sensor assembly which is suspended within the wall.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: July 27, 1976
    Inventor: William F. Shanahan