Patents by Inventor Reinhard BIRK

Reinhard BIRK 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).

  • Publication number: 20120204669
    Abstract: A shifting device for a multi-group transmission having a manual main group with an odd number of forward gears and a range group for shifting between two gear ranges. A shift finger system and a logical shifting pattern for shifting the transmission with and without a range change. The system comprises single shift fingers and possibly double shift fingers which are located in a plane and offset from one another. Carrier elements are associated with the shift fingers, by which the carrier elements can be optionally actuated in two opposite shifting directions and/or a particular shifting direction can be reversed, so that the gears of the two gear ranges can be actuated in a multiple-H shifting pattern in sequence by alternating shift lever movements, and a shift of the gear range can be produced by a selection movement of the shift lever.
    Type: Application
    Filed: October 13, 2010
    Publication date: August 16, 2012
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Reinhard Birk, Jochen Heinzelmann
  • Publication number: 20080141805
    Abstract: The invention relates to a shifting device (1) for a group transmission with a first switching device (9) for switching the gear steps of a group, a second switching device (10) for switching the groups of the group transmission, and a locking device (22), which features a locking member (23), which can be moved from a releasing position into a locking position, in which the first switching device (9) is locked in a neutral position. Inventively, the locking member (23) can be moved independently of a switching movement of the second switching device (10) from the releasing position into the locked position. The invention also involves a method for controlling a switching device (1) for a group transmission.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 19, 2008
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Reinhard BIRK, Eckhardt LUBKE, Jurgen HALTER, Michael PREUSS