Patents by Inventor Richard G. Wallace

Richard G. Wallace 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).

  • Power takeoff device
    Patent number: 6073502
    Abstract: A power takeoff of compact dimension yet capable of high horsepower output which includes a shifting mechanism, air actuated internally to connect internally aligned banks of splined gear members yet assures against inadvertent rotation of the output shaft without the need for a drag brake.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: June 13, 2000
    Assignee: Muncie Power Products, Inc.
    Inventor: Richard G. Wallace
  • Seal tester
    Patent number: 3982421
    Abstract: A pneumatic cylinder having a manually retractible piston therein operative to draw a vacuum upon the sealing of a readily compressible sealing head about an area to be tested for leakage. A spring loaded lever selectively engages between the piston manipulating handle and the cylinder end upon a retraction of the piston to provide a generally uniform application of vacuum pressure and maintain the applied pressure which is in turn registered on an attached vacuum gauge communicating with the cylinder near the seal.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: September 28, 1976
    Inventor: Richard G. Wallace