Patents by Inventor Glenn E. Marshall

Glenn E. Marshall 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: 4523782
    Abstract: A load-absorbing mount for electromagnets includes a connecting member to which a plurality of chains are connected at one end, the chains being connected at the other end to the electromagnet. A lifting device such as a crane is connected to a load-carrying member, and a spring is disposed intermediate the connecting member and the load-carrying member. In a preferred embodiment, the spring is arranged relative to the connecting member and the load-carrying member such that the spring is always under compression. Due to the flexible nature of the spring, loads imparted to the crane by the electromagnet are cushioned under all operating conditions.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: June 18, 1985
    Inventor: Glenn E. Marshall