Patents by Inventor Fred Silva

Fred Silva 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).

  • Patent number: 7448823
    Abstract: A spring loaded quick release pin and tubular receiver with a retainer pin configured to secure the quick release pin in a shackle, clevis, yoke or forked rod end. The receiver is welded to a shackle or cast with the shackle as a single body. One end of the quick release pin has aligned J slots that engage the retainer pin positioned in the receiver with a clockwise twist. The other end of the quick release pin has a cap and a spring loaded sleeve that biases the cross pin against outside of the second leg of the shackle. The spring bias keeps the short leg of the J slot engaged with the retaining pin. The quick release pin is removed with a push and counter clockwise twist. The invention includes a kit with a receiver, a bushing and a quick release pin for installing or retrofitting existing shackles.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: November 11, 2008
    Inventor: Fred Silva
  • Publication number: 20050276658
    Abstract: A spring loaded quick release pin and tubular receiver with a retainer pin configured to secure the quick release pin in a shackle, clevis, yoke or forked rod end. The receiver is welded to a shackle or cast with the shackle as a single body. One end of the quick release pin has aligned J slots that engage the retainer pin positioned in the receiver with a clockwise twist. The other end of the quick release pin has a cap and a spring loaded sleeve that biases the cross pin against outside of the second leg of the shackle. The spring bias keeps the short leg of the J slot engaged with the retaining pin. The quick release pin is removed with a push and counter clockwise twist. The invention includes a kit with a receiver, a bushing and a quick release pin for installing or retrofitting existing shackles.
    Type: Application
    Filed: September 28, 2004
    Publication date: December 15, 2005
    Inventor: Fred Silva