Patents by Inventor Manfred Grapentin

Manfred Grapentin 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: 5144990
    Abstract: The switch is of universal construction to accomodate different rail patterns, and includes a parallelogram shaped turn over plate having three corners affixed to stationary rails and journalling rollers for a motor driven switch frame which carries a curved and a straight section; the chord of the curved section has an angle of 90.degree. to the displacement direction and the straight section has an angle of 77.5.degree. to the displacement direction.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: September 8, 1992
    Assignee: Mannesmann A.G.
    Inventors: Johannes-Gerhard Spoeler, Manfred Grapentin
  • Patent number: 4762069
    Abstract: A rail suspension arrangement including suspending member and a rail of I beam configuration, the I beam having a web and upper and lower cross bars, one side of the web having claws for connection with conductor holders, and claws on the other side of the web that have portions facing each other to define a channel with internal overhung portions against which fastening screws are clamped. The suspending member has projecting surfaces bearing against support surfaces of the web, and has a plate from which the fastening screws extends. A supplemental rail may be interposed between the web and the suspending member.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: August 9, 1988
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Johannes G. Spoeler, Manfred Grapentin
  • Patent number: 4646647
    Abstract: Rails supporting vehicles are suspended under utilization of a mounting plate being laterally adjustable by means of a detent structure and oblong slots secured to a lowermost portion of support tower or the like and having four bores threadedly receiving four suspension bolts for a C-shaped bracket member having an uppermost suspension plate with arc-shaped bores for receiving the suspension bolts; a plurality of nuts threadedly secure the suspension plate to the suspension bolts from above and from below in an elevationally adjustable manner; the rail is secured to the lower portion of the bracket member.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: March 3, 1987
    Assignee: Mannesmann AG
    Inventors: Johannes G. Spoler, Manfred Grapentin