Patents by Inventor Ferdinand Mulzer

Ferdinand Mulzer 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: 8562479
    Abstract: A tandem axle having two drivable axles, each axle including a differential gearing with a drive input gearwheel, drivable by a shaft, as a differential gearing input and with two drive input semi-axles driving the wheels of the axle using axle shaft wheels. The wheels of the first axle are permanently positively coupled to the drive input gearwheel of the axle. An activatable distributor wheel is seated on a drive input shaft of the drive input gearwheel of the first axle. The distributor wheel meshes with a through drive shaft wheel which is arranged in a rotationally rigid fashion on a through drive shaft. The output of the through drive shaft is coupled to the input-side drive input gearwheel of the second axle by means of intermediate members. Switchable clutches are arranged in the second axle between the axle shaft wheels and their adjacent wheels.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: October 22, 2013
    Assignee: Daimler AG
    Inventors: Johann Hamperl, Michael Helfrich, Uwe Mierisch, Ferdinand Mulzer
  • Publication number: 20110218715
    Abstract: In a drive train control arrangement for a motor vehicle drive train, which comprises at least one main drive train, a first drive axle driven permanently by means of the main drive train, at least one auxiliary drive train and a second drive axle coupleable to the main drive train via the auxiliary drive train, which has a first clutch unit and at least a second clutch unit connected downstream in the power train of the first clutch unit for connecting the second drive axle to the main drive train, and a control unit, which in at least one operating mode closes the at least one second clutch unit of the auxiliary drive train to shift into a standby operating mode when a defined operating condition is present, and with the standby operating mode activated, closes the first clutch unit of the auxiliary drive train to connect the coupleable second drive axle depending on at least one parameter.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 8, 2011
    Inventors: Shivkumar Duraiswamy, Daniel Nullmeier, Ferdinand Mulzer
  • Publication number: 20100248888
    Abstract: A tandem axle having two drivable axles, each axle including a differential gearing with a drive input gearwheel, drivable by a shaft, as a differential gearing input and with two drive input semi-axles driving the wheels of the axle using axle shaft wheels. The wheels of the first axle are permanently positively coupled to the drive input gearwheel of the axle. An activatable distributor wheel is seated on a drive input shaft of the drive input gearwheel of the first axle. The distributor wheel meshes with a through drive shaft wheel which is arranged in a rotationally rigid fashion on a through drive shaft. The output of the through drive shaft is coupled to the input-side drive input gearwheel of the second axle by means of intermediate members. Switchable clutches are arranged in the second axle between the axle shaft wheels and their adjacent wheels.
    Type: Application
    Filed: August 1, 2007
    Publication date: September 30, 2010
    Applicant: Daimler AG
    Inventors: Johann Hamperl, Michael Helfrich, Uwe Mierisch, Ferdinand Mulzer