Patents by Inventor Andy Andrews

Andy Andrews 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).

  • Method for production of archery bow risers of various shapes
    Patent number: 5845388
    Abstract: A method of producing a set of archery bow risers having a variety of shapes is taught in which a workpiece is designed having a shape that encompasses each one of the variety of shapes. A set of dies is produced for producing the workpiece and the dies are used to form a set of workpieces via forging, die-casting or composite resin/fiber molding. Finally, a set of bows having mutually different shapes are machined from the workpieces. The method taught avoids the expense of producing a new set of dies for each new archery bow riser design.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: December 8, 1998
    Assignee: Spenco, Inc.
    Inventors: Andy Andrews, Spencer Land