Patents by Inventor Ervin M. Sheperd

Ervin M. Sheperd 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: 4538793
    Abstract: A machine for pulling spikes from railroad ties including a pair of claws supported by the machine frame, one of the claws being positioned on one side of the rail and for pulling spikes on that side of the rail and the other of the claws being positioned on an opposite side of the rail and for pulling spikes on that side of the rail. Each of the claws including a lower end portion having a pair of spaced fingers extending toward the rail, and each claw being supported for movement from a retracted position to a position wherein the fingers of that claw are positionable under the head of a spike on opposite sides of the spike. The claws then move upwardly to pull spikes from the ties.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: September 3, 1985
    Assignee: Rexnord Inc.
    Inventors: Andrew M. Dieringer, Ervin M. Sheperd
  • Patent number: 4127070
    Abstract: This is an apparatus for removing ties from under railroad track and is specifically concerned with removing ties in one piece and involves removing the high wood from the ties in the area between the rails of the track and on one end thereof so that the tie may be pulled or pushed out the other way.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: November 28, 1978
    Assignee: Rexnord Inc.
    Inventors: Andrew M. Dieringer, Ervin M. Sheperd
  • Patent number: 4047280
    Abstract: This is a method and apparatus for removing ties from under railroad track and is specifically concerned with removing ties in one piece and involves removing the high wood from the ties in the area between the rails of the track and on one end thereof so that the tie may be pulled or pushed out the other way.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: September 13, 1977
    Assignee: Rexnord Inc.
    Inventors: Andrew M. Dieringer, Ervin M. Sheperd