Patents by Inventor Patrick H. O'Brien

Patrick H. O'Brien 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: 4018099
    Abstract: A transmission shift lever assembly having a manually operated shift lever, pivotally mounted by a sliding saddle block connection on a shift shaft for transverse selecting movement between first, second and third neutral positions and rotating the shift shaft to these neutral positions and pivotally mounted for limited selecting movement in a pivot bracket pivotally mounted for shifting movement on the housing for fore and aft shifting movement conjointly with the pivot bracket from any neutral position in either direction to a drive position without turning movement.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: April 19, 1977
    Assignee: General Motors Corporation
    Inventors: Patrick H. O'Brien, William J. Zabritski
  • Patent number: 3998109
    Abstract: A transmission shift lever pivotally mounted at one end and having at the other end a handle with a detent release button connected to push a detent release rod axially extending through a tubular lever portion to release a U-shaped detent member which is mounted on the lever and biased to engage detent notches on the internal diameter of a detent plate located about the pivot. The handle has a rigid core with a bore to reciprocally receive the release button and an elastic cover. The button has a cam and stop engaging a cam and stop on the cover to expand the cover to insert and retain the button biased to release position. In one form the button directly axially pushes on the release rod and in another form the button moves transversely and has a cam rotating a pivoted lever which supports the release spring and pushes the release rod.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: December 21, 1976
    Assignee: General Motors Corporation
    Inventor: Patrick H. O'Brien
  • Patent number: 3998110
    Abstract: A transmission shift linkage having a manual shift lever pivoted in a housing for selecting movement between neutral positions and shifting movement to four forward speed positions and a reverse drive position with a manually releasable reverse inhibitor to prevent selecting movement from the neutral position for first and second speed drive position to the neutral position for reverse drive position to inhibit shifts to reverse drive position. The inhibitor has a stop member mounted on the manual shift lever for movement in the selecting movement direction between inhibiting and detent positions and is spring biased to inhibiting position.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: December 21, 1976
    Assignee: General Motors Corporation
    Inventors: Patrick H. O'Brien, Rizal J. Baysa