Patents by Inventor Leon Pittman

Leon Pittman 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).

  • Publication number: 20070119438
    Abstract: A compound bow maintenance press and method for compressing a compound bow from the bow limb ends provides a shop-installable bow press that prevents damage to the bow riser and limbs during service. The press contacts the bow only at the ends of the bow limbs and compresses the bow from outside of the curvature of the bow, providing clear access to the bow strings and a press that can be secured or stood on a workbench or a floor stand. The bow press can be operated by an electric motor or a hand crank and may include a worm gear drive system that provides for adjusting a telescoping member having arms extending to compress the bow limb ends. A limb end fixture is attached to or integrated with each arm, and provides a slot that accepts the bow limb end pulleys.
    Type: Application
    Filed: September 18, 2006
    Publication date: May 31, 2007
    Inventor: Leon Pittman
  • Patent number: 5615484
    Abstract: A cam lock for the folding blade of a knife is disclosed herein wherein the heel of the knife is pivotally carried between opposite sides at one end of a handle. The handle includes an elongated slot defined between opposing surfaces of the handle for receiving the blade in its folded or storage position. A self-biasing cam lock assembly having components carried on the heel of the blade and the handle maintains the blade in its operative extended, unfolded position or in its folded storage position. The cam lock assembly includes an L-shaped cam member secured to the blade heel having an arcuate surface terminating at one end in a linear surface and a cut-out at its opposite end. Rectilinear slide members are carried on the handle having a spring bias yieldably urging the pin and slide member into engagement with either the cut-out or the linear surface respectively to maintain the blade in either of its two positions.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: April 1, 1997
    Assignee: Spyderco, Inc.
    Inventor: Leon Pittman
  • Patent number: 5365912
    Abstract: An arrow rest assembly (10) provides accurate and unimpeded shooting of an arrow (12) from a compound bow (14). A U-shaped arrow cradle (18) is configured to raise upwardly to a second position so that the arrow (12) is supported and is configured to lower downwardly to a first position away from the arrow (12) during launching. A lever arm (42) is capable of moving the arrow cradle (18) upwardly, or from the first position to the second position. To this end, a cord (44) connects the lever arm (42) with a bow cable (16a, 16b). A circular spring (38) biases the arrow cradle (18) downwardly, or toward the first position.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: November 22, 1994
    Inventor: Leon Pittman