Patents by Inventor Ralph Siegfried

Ralph Siegfried 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).

  • Bowstring release mechanism
    Patent number: 6247467
    Abstract: A release system for use with a projectile firing device includes a trigger for initiating a time period. The device includes a timer with fluid that is operable with the trigger for establishing, at least in part, a time period. The device also includes a release mechanism operable with the timer for propelling the projectile based upon the time period.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: June 19, 2001
    Inventor: Ralph Siegfried