Patents by Inventor LaVerne R. Olsen

LaVerne R. Olsen 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).

  • In-line air-bleed valve for hand-operated grease guns
    Patent number: 4946077
    Abstract: An attachment for bleeding trapped air from hand-operated grease guns consists of an in-line valve for disposition between the gun and its output tube. The valve features an in-line fitting on which is threaded a hand-operated nut. When the nut is backed-off it opens a port in the fitting through which trapped air can be bled off.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: August 7, 1990
    Inventor: LaVerne R. Olsen