Patents by Inventor David M. Hreha

David M. Hreha 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).

  • Reduced drag front axle shift mechanism
    Patent number: 9683611
    Abstract: A front axle shift mechanism configured to be operably associated with a front axle housing having a front differential and a first lubricant is provided. The front axle shift mechanism includes a disconnect feature housing defining an inner cavity to house a shifting mechanism configured to selectively provide power to front wheels of the vehicle, the shifting mechanism configured to rotatably couple to the front differential. The inner cavity is configured to receive a second lubricant to facilitate providing lubrication to the first clutch gear and the second clutch gear. The second lubricant is fluidly separate from the first lubricant.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: June 20, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Bhapinder Puri, David M. Hreha, George Spears
  • REDUCED DRAG FRONT AXLE SHIFT MECHANISM
    Publication number: 20160280065
    Abstract: A front axle shift mechanism configured to be operably associated with a front axle housing having a front differential and a first lubricant is provided. The front axle shift mechanism includes a disconnect feature housing defining an inner cavity to house a shifting mechanism configured to selectively provide power to front wheels of the vehicle, the shifting mechanism configured to rotatably couple to the front differential. The inner cavity is configured to receive a second lubricant to facilitate providing lubrication to the first clutch gear and the second clutch gear. The second lubricant is fluidly separate from the first lubricant.
    Type: Application
    Filed: March 25, 2015
    Publication date: September 29, 2016
    Inventors: Bhapinder Puri, David M. Hreha, George Spears