Patents by Inventor Martin Zynch

Martin Zynch 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: 5531504
    Abstract: Backrests of motor vehicle seats are attached so that their inclination can be adjusted and fixed by way of hinge mountings 1 with eccentric planetary gears 2, the rolling bodies of which are made by extrusion moulding.To increase the fracture resistance of the tooth systems, the teeth of the outer and inner tooth systems 5 and 6 are both attached laterally through strong annular material regions 7 and 8 respectively which avoid stress concentrations, and also, to produce a good lateral engagement relationship of the tooth systems, the rolling bodies 3 and 4 are mounted on the axis 9 in a manner effective to prevent tilting, namely by extending the bearing surfaces through hubs 10 and 11 and spacing the bearing faces of the two rolling bodies equidistant from the centre 12 of the external and internal tooth systems 5 and 6 respectively.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: July 2, 1996
    Inventors: Gerhard Schmale, Ralf Hoge, Martin Zynch