Patents by Inventor Robert A. Wrigley

Robert A. Wrigley 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: 4544199
    Abstract: A slide-adjustable reclining double seat for boats and like applications comprising a support box and a pair of seats hinged back-to-back resting on the upper edges of the box sidewalls. A locking bar is cantilevered rearwardly beneath each seat bottom. A pair of opposed slides of molded plastic construction are affixed to the box sidewalls and have channels which slidably receive ends of the locking bars. Laterally aligned recesses in the channels define locking positions of the reclining seats.
    Type: Grant
    Filed: February 24, 1984
    Date of Patent: October 1, 1985
    Assignee: Detroit Marine Engineering, Inc.
    Inventor: Robert A. Wrigley
  • Patent number: 3980157
    Abstract: A hinge for a foldable boat ladder which permits the ladder to be stowed in its folded position without the need for additional fastening means. The hinge comprises a pair of sockets each having a plurality of leaves, the leaves interfitting. The leaves for the upper portion of the ladder have aligned holes carrying a stationary hinge pin. The leaves on the lower socket have inclined slots engaging this pin. In the lower hinge position the sockets are aligned. When the lower socket is swung upwardly 180.degree., its leaf slots slide downwardly and inwardly. The lower ends of these leaves engage the lower portion of the upper socket, and a bridge extending between the leaves above the pin engages a leaf on the upper socket. This prevents rattling and permits the sockets to be held firmly together, but still far enough apart so that steps on the upper and lower ladder portions may be aligned without touching.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: September 14, 1976
    Assignee: Detroit Marine Engineering Corporation
    Inventor: Robert A. Wrigley