Patents by Inventor John A. Phipps

John A. Phipps 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: 4471511
    Abstract: A releasable connector for connecting a shackle bolt on a liferaft to the depending end of a davit cable is set in a safe condition for boarding and lowering of the liferaft. In the safe condition, a hook member supports the shackle bolt and is itself locked in its supporting position by a latch member. A coupling spring connected between the hook member and the latch member operates to one side of its dead-center position to urge the latch member into the locking position. A first downward pull on a lanyard causes a pawl member to engage a tooth on the latch member to move the latch member from its locking position to a drive position in which the coupling spring operates to the other side of its dead-center position and urges the latch member into its drive position.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: September 18, 1984
    Assignee: RFD Limited
    Inventor: John A. Phipps