Patents by Inventor Orval F. Wolfgram

Orval F. Wolfgram 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: 5120190
    Abstract: The present invention provides an apparatus and method of a feeder for singulating and feeding various shaped sized and shaped parts without major modification. The present invention also provides an arrangement which utilizes the feeder.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: June 9, 1992
    Assignee: General Motors Corporation
    Inventors: Paul R. Smith, Orval F. Wolfgram, Rudolph G. Kobelia
  • Patent number: 5069329
    Abstract: A parts feeder is provided for singulating a plurality of different unique parts without major modification. The feeder has a fabric oriented platform which is mounted on top of a vibrator. A load section is provided for accepting the parts in bulk and imparting movement to the parts in a general first direction. A compound inclined ramp section which is also fabrically oriented imparts movement to the parts in a second direction and causes the non-singulated parts to fall and return to the load section. A second drop off ramp accepts the singulated parts from the first ramp imparts movement of the singulated parts to a desired workstation. A gate is mounted between the load section and the inclined ramp. In a closed position the gate allows the unique parts to move between the load section and the first ramp.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: December 3, 1991
    Assignee: General Motors Corporation
    Inventors: Paul R. Smith, Orval F. Wolfgram, Rudolph G. Kobelia
  • Patent number: 4988256
    Abstract: The present invention provides an apparatus of a feeder for singulating and feeding various shaped sized and shaped parts without major modification. The present invention also provides an arrangement which utilizes the feeder.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: January 29, 1991
    Assignee: General Motors Corporation
    Inventors: Paul R. Smith, Orval F. Wolfgram, Rudolph G. Kobelia