Patents by Inventor Leslie L. Wolfrey

Leslie L. Wolfrey 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).

  • Collapsible anchor responsive to the rate of release of anchor line tension
    Patent number: 4125082
    Abstract: An anchor with collapsible flukes is provided with a spring tensioned latching mechanism which normally prevents the flukes from moving from a latched position to a collapsed position. The latching mechanism is unlatched and the flukes collapsed by a releasing mechanism including a compression spring and a firing pin. Tension on an anchor line draws the firing pin against the compression spring and, upon a sudden release of the tension in the anchor line, the firing pin is driven against the latching mechanism to unlatch it and permit collapse of the flukes.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: November 14, 1978
    Inventors: Leslie L. Wolfrey, Charles H. Brown