Patents by Inventor Robert J. Spillar

Robert J. Spillar 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: 4838595
    Abstract: A lifting device for grasping an object having a hole therethrough, the device being formed of a tubular support member having an elongated toggle member pivoted at one end, the toggle member being pivoted between a longitudinal position in alignment with the support member and a transverse position perpendicular to the support member, and a lifting member slideably received within the upper end of the tubular support member, the lifting member having an eyelet for attaching a lifting cable thereto. The improvement in the device includes a spring within the tubular support member having one end affixed to the lifting member and the other end to a cable extending to the toggle member. The toggle member is weighted such that it normally returns to the inoperative longitudinal position except when the lifting member is in an upward position and the spring applies tension to the cable, pivoting the toggle member to the operative transverse position.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: June 13, 1989
    Assignee: Tulsa Power Products, Inc.
    Inventor: Robert J. Spillar
  • Patent number: 4568035
    Abstract: An apparatus for loading and unloading a cable spooling reel or drum onto a support frame structure for facilitating the use of the cable in a well bore drilling, servicing, or producing operation, or the like, the apparatus including a pivotal ramp for guiding the drum onto and off of the frame structure, a pair of winches engagable with the opposite end of the spool or reel shaft for moving the drum over the ramp and onto the frame structure and for unloading the drum from the frame structure, and a traverse mechanism for facilitating the winding and unwinding of the cable with respect to the core of the cable spooling drum.
    Type: Grant
    Filed: January 13, 1984
    Date of Patent: February 4, 1986
    Inventors: James P. Ruch, Robert J. Spillar