Patents by Inventor Sidney E. Proctor

Sidney E. Proctor 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: 4274677
    Abstract: The specification describes a mineral cutter pick arrangement in which the cutter pick has a body member with a cutter tip formed at one end thereof. The widest dimension of the cutter pick transverse to the forward direction of movement of the cutter pick adjacent the cutter tip being greater than the corresponding dimension of a cutter pick holder on which, in use, the pick is mounted; the cutter pick body member being formed at one end with a top member extending rearwardly of the body member, wherein the rearmost surface of said top member extends from the undersurface of said top member at an angle which diverges from the normal to the undersurface of said top member.
    Type: Grant
    Filed: May 22, 1979
    Date of Patent: June 23, 1981
    Assignee: Pars Engineering Company Limited
    Inventor: Sidney E. Proctor