Patents by Inventor Charles J. Kuhn

Charles J. Kuhn 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: 5184930
    Abstract: A vehicle lifting system includes two pneumatic jacks each equipped with a detachable adapter for engaging a vehicle tire to lift the vehicle by its tires. The adapter has a fork with two arms that support the tire at two points on its circumference, on opposite sides of the tire's axis of rotation. The system also includes an air source connected to the jacks by a T-joint and separate air lines so that the jacks lift in unison. In another embodiment, the adapter is a receptacle for holding an end of a rigid lifter bar. Each jack is positioned on an opposite side of the vehicle with the lifter bar under the vehicle frame and extending between the jacks. The bar is equipped with body clamps to prevent the vehicle body from slipping during lifting.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: February 9, 1993
    Inventor: Charles J. Kuhn
  • Patent number: 4916793
    Abstract: An anchor assembly for use in straightening unibody frame rails comprises a weld plate having at least one internally threaded sleeve projecting from a face of the weld plate. The sleeve is arranged to project into an anchor hole drilled in a metal unibody frame rail to be straightened. The face of the weld plate contacts a side wall of the frame rail in which the anchor hole is drilled so the weld plate can be permanently welded to the side wall of the frame rail with the internally threaded sleeve reinforcing the anchor hole. An anchor plate is releasably fastened to the weld plate on the frame rail. An anchoring bolt extends through an anchor hole in the anchor plate and is threaded into the reinforcing sleeve of the weld plate for releasably fastening the anchor plate to the weld plate.
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: April 17, 1990
    Assignee: Charles J. Kuhn
    Inventor: Charles J. Kuhn
  • Patent number: 4720991
    Abstract: A safety tie down assembly is adapted for use with pulling apparatus of the type used in the repair of collision damage to motor vehicles. The pulling apparatus includes a post carrying a power cylinder attached to a pulling chain which passes over a guide pulley on the post and then to the vehicle so that force applied to the piston in the cylinder applies a pulling force to the vehicle through the pulling chain. The pulling force is counteracted by a primary anchor chain coupled to the post and extending to a floor anchor. The safety tie down assembly comprises a rigid anchor guide and support removably placed in the floor anchor and contacted by the primary anchor chain so that the restraining force in the primary anchor chain is evenly distributed at the edge of the floor anchor to prevent damage to the floor. A safety anchor line is connected to a separate location on the post assembly and is then connected to a ring-like cable carried on the rigid anchor guide and support.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: January 26, 1988
    Assignee: Kuhn Manufacturing Co., Inc.
    Inventor: Charles J. Kuhn
  • Patent number: 4284014
    Abstract: A safe rigidly and permanently mounted in an opening in a concrete wall or floor. Two interfitting sleeves co-operating in a pre-oriented, rigid relationship with each other and the surface bordering the opening to preclude unauthorized removal. A container element is assembled to one of the sleeves. To retard "sweating" or the accumulation of moisture in the container and to obviate corrosion development, a rigid plastic, such as polyvinyl chloride, is used for container fabrication. A cover is provided which is releasably secured in close fitting relationship to one of the sleeves, capturing a cover plate therebetween in pre-selected orientation adjacent the safe mouth. The co-operation between the cover, the cover plate and the interfitting sleeves maximizes safe security and precludes extraction from or pushing through the opening in the wall or floor.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: August 18, 1981
    Inventor: Charles J. Kuhn
  • Patent number: 4189934
    Abstract: There is disclosed herein a pulling apparatus comprising a pair of spaced vertical members each of which is supported upon a base member by a pair of depending diverging support members of unequal length which operate to rigidly support the vertical members against the forces exerted thereon during the pulling operation. An additional vertically extending support member also extends from one of the depending support members to further increase the rigidity thereof. The vertical members may each be provided with opposed channels within which a pulley is movably disposed, said pulley being adjustably supported by a chain or the like engaging a load holding assembly provided upon the upper portion of the vertical members.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: February 26, 1980
    Inventor: Charles J. Kuhn
  • Patent number: 4175420
    Abstract: There is disclosed herein a safety tie down assembly particularly adapted for use with pulling apparatus of the type employed in the repair of collision damage to motor vehicles. The safety tie down assembly comprises a pair of attachment members fixedly secured to outwardly facing surfaces of the spaced vertically extending members of the pulling apparatus. Chains or the like are attached to each of the attachment members and are designed to be secured to anchors when the pulling apparatus is being operated so as to restrain or limit movement of the pulling apparatus should the primary anchoring assembly break or otherwise let loose.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: November 27, 1979
    Inventor: Charles J. Kuhn
  • Patent number: 4151974
    Abstract: An anchor for resisting a pulling force applied to a cable includes an expandable outer shell disposed in an opening in a floor, an outer wedge disposed in the shell and having wedge-shaped projections engaged with the inner wall of the shell, and a rotatable inner wedge below the outer wedge engaged with a short length of chain extending through the shell. A cable to be tensioned is attached to the short length of chain. Tension on the cable urges the inner wedge upwardly against the outer wedge which, in turn, is wedged in the interior of the shell to forceably expand the walls of the shell radially outwardly to embed the shell in the floor. The inner wedge is rotatable axially relative to the outer wedge between a first position, in which a wedging force is applied to the outer wedge in response to tensioning of the cable, and a second position, which allows removal of the inner wedge and the short length of chain from the outer wedge and the shell.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: May 1, 1979
    Inventor: Charles J. Kuhn
  • Patent number: 4107974
    Abstract: An anchoring device for use in straightening automobile bodies of unitized construction includes a hook comprising an elongated steel bar having a long, generally straight portion bent at one end to form a C-shaped portion for being releasably hooked around a means of attaching the leaf spring of the automobile suspension system to the automobile body. A chain is releasably attached to the straight portion of the hook, and in one method of using the hook the free end of the chain is affixed to the ground to anchor the rear of the automobile against a pulling force applied to the front of the automobile.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: August 22, 1978
    Inventor: Charles J. Kuhn
  • Patent number: 4106325
    Abstract: A chisel clamp used to provide a pulling point or anchor point when straightening automobile bodies comprises a pair of jaws each having a blade edge at one end and a serrated surface extending inboard the blade edge. The jaws are clamped to a structural member, such as the sheet metal floor of the automobile trunk space, by (1) hammering the blade edges of the jaws into the automobile body to sandwich the trunk floor between the serrated surfaces of the jaws; (2) aligning portions of the jaws which remain outside the automobile body to provide a corresponding alignment of threaded holes in the serrated portions of the jaws which are not mutually visible to the repairman because of their location on opposite sides of the trunk floor, and (3) tightening threaded fasteners engaged with the threaded holes to clamp the serrated surfaces of the jaws against the trunk floor.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: August 15, 1978
    Inventor: Charles J. Kuhn
  • Patent number: D349366
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: August 2, 1994
    Inventors: Charles J. Kuhn, Ledell Kuhn