Patents by Inventor Donal R. Broesamle

Donal R. Broesamle 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).

  • Caulk gun
    Patent number: 5887765
    Abstract: A caulk gun is provided with a forward-biasing mechanism to maintain contact between the caulk tube and the piston rod. The forward biasing mechanism is of simple construction and is piggy-backed to the trigger housing of the caulk gun. The operation of the forward-biasing mechanism relies on a friction grip which surrounds the piston rod. This friction grip is urged in the forward direction by a spring contained within the housing of the forward-biasing mechanism, and thereby biases the piston rod in the forward direction, while relieving the back pressure inside the caulk tube.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: March 30, 1999
    Assignee: Dripless, Inc.
    Inventor: Donal R. Broesamle