Patents by Inventor Bruce J. Stribbell

Bruce J. Stribbell 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: 5395575
    Abstract: Production line and method for manufacturing strips of foil stabilized plastics moldings featuring a rotary reform machine that has a pair of reform wheels that are rotatably driven to profile the extrudate while matching the output speed of extrudate exiting from the extrusion die of a plastics extruder. The wheels have equal diameters and are motor driven at the same angular velocity so that forming dies in the wheels synchronize and cooperate to pressure mold spaced sections of the extrudate feeding therethrough to form high quality end corners with an offal section therebetween. A haul-off pulls the strip from the extruder die, the rotary reform machine, a water trough and flash trimmer and into a cutter where the offal is removed. The strip is maintained under a predetermined tension load by use of an adjustable friction brake on the stabilizer foil so that the heated plastics exiting the extruder will be uniform in initial profile, providing high quality extrudate feeding into the reforming wheels.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: March 7, 1995
    Assignee: General Motors Corporation
    Inventors: Bruce J. Stribbell, Donald L. Franck
  • Patent number: 5382401
    Abstract: A stabilizer guide for guiding a stabilizer, having a material characteristic of fraying, through an extrusion die without fraying and melting the stabilizer during the extrusion of a thermoplastic body molding of a motor vehicle. The stabilizer guide is made up of two halves that join to form a parting line and a slot by which to guide the stabilizer through the extrusion die. The slot extends along the entire length of the stabilizer guide and is located in a different plane than the parting line of the stabilizer guide. By having the slot in a different plane than the parting line, the stabilizer is prohibited from wandering into the parting line. This prevents the stabilizer from fraying and shredding and causing the slot to be obstructed by pieces of the stabilizer. Obstruction of the slot hampers the stabilizer from being guided through the stabilizer guide.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: January 17, 1995
    Assignee: General Motors Corporation
    Inventors: Thomas J. Pickett, Richard A. Otten, Bruce J. Stribbell, Manhar K. Sheth