Patents Represented by Attorney Ernest F. Helms
  • Patent number: 5139117
    Abstract: A massive, stiff disc brake rotor is provided which is modified by providing cuts through part or all of the rotor section having the friction braking surfaces. In a preferred embodiment, the cut has an interlocking conformation so that there is less potential for radial distortion of the disc under heavy centrifugal loads. The cut allows the rotor to vibrate axially while interrupting the propagation and amplification of circumferential waves, letting the rotor act more like a diametral spring instead of a bell. Depending on rotor inertia and braking forces to be applied, the cut can extend axially through parts of the rotors, or only partially through one or more rotor parts.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: August 18, 1992
    Assignee: General Motors Corporation
    Inventor: Wolfgang Melinat
  • Patent number: 4843701
    Abstract: The present invention provides for an apparatus and method for installing weather stripping in a body door opening. In its preferred embodiment the present invention provides a robot which can load itself from a weather stripping station, transfer the weather stripping to the body door opening, and install the weather stripping within the body door opening. The present invention also provides an end of arm tooling device for a robot above-described.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: July 4, 1989
    Assignee: General Motors Corporation
    Inventors: Stephen St. Angelo, George C. Carver, David W. Patterson, Owen K. Fremont