Patents by Inventor Norman C. Knox

Norman C. Knox 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: 4248469
    Abstract: An improved lifting harness includes a thick metal plate having an upper hole for attaching the lifting harness to a support. A second hole is disposed in the plate beneath the upper hole. First and second elongated slots through the plate material extend generally downward from the edge of the lower hole. A first heavy chain has one link disposed in the first slot. A lifting hook is hingeably attached to one end of the first chain, and a clevis is hingeably attached to the opposite end of the chain. A link of a second chain is disposed in the second slot. A second hook is hingeably attached to one end of the second chain and a second clevis is hingeably attached to the opposite end of the second chain.
    Type: Grant
    Filed: July 10, 1979
    Date of Patent: February 3, 1981
    Inventor: Norman C. Knox