Patents by Inventor Donald W. Longshore

Donald W. Longshore 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).

  • Countershaft auxiliary transmission
    Patent number: 3991634
    Abstract: A countershaft transmission having an input shaft selectively driving a clutch carrier connected to the output shaft by selective drive through direct drive and through countershaft driven quill shafts to the clutch carrier.
    Type: Grant
    Filed: December 19, 1974
    Date of Patent: November 16, 1976
    Assignee: Allis-Chalmers Corporation
    Inventor: Donald W. Longshore
  • Vehicle park-brake and gear shifter with an interlock
    Patent number: 3987879
    Abstract: A vehicle park lock mechanism on a motor vehicle operated by a shift rail and shift lever to selectively operate the shifting of a gear ratio in the transmission and the park lock of the transmission drive shaft.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: October 26, 1976
    Assignee: Allis-Chalmers Corporation
    Inventors: Donald W. Longshore, Ferdynand Kolacz