Patents by Inventor Peter Hakkenberg

Peter Hakkenberg 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: 5173053
    Abstract: An electrical connector for an electromechanical device is provided. The connector includes a housing having a first and second ends and an axis extending longitudinally through the housing. The housing is adapted to be connectable to a surface, and the electromechanical device is disposable in the housing. A rotatable portion having first and second ends is rotatably connected to the housing. The second end of the rotatable portion is positioned adjacent to the first end of the housing along the axis. A fastener fastens the rotatable portion to the housing, and the rotatable portion is adapted to turn about the axis. First and second contacts are axially aligned with and radially disposed from the axis. One of the contacts are disposed on the second end of the rotatable portion and the other on the first end of the housing. The first contact is biased by the fastener into slidable electrical contact with the second contact.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: December 22, 1992
    Assignee: Caterpillar Inc.
    Inventors: Morris A. Swanson, Peter Hakkenberg, Jeffrey R. Albers
  • Patent number: 4489623
    Abstract: An axle shaft and pump drive mechanism (12) for a vehicle (10) includes a continuously variable transmission unit (24), an axle shaft (20), a pump (22), and a coupling device (34,78) for connecting the transmission unit (24) to the axle shaft (20) or to the pump (22) and operating them individually through an infinitely variable speed ratio range. When the vehicle, such as a backhoe loader, is not being propelled, the continuously variable transmission unit (24) can be used to drive the implement pump (22) which can then be of the fixed displacement type for improved effectiveness.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: December 25, 1984
    Assignee: Caterpillar Tractor Co.
    Inventor: Peter Hakkenberg
  • Patent number: 4150856
    Abstract: An endless track assembly for a track-type vehicle comprises an articulated chain for pivotally connecting each pair of adjacent track shoes together. Each articulated joint of the chain comprises a one-piece pin having a pair of laterally spaced pin portions and a bushing portion disposed intermediate the pin portions. A pair of first links are secured to the pin portions and a pair of second links are pivotally mounted on the pin portions. An annular seal is disposed between each adjacent pair of first and second links and a snap ring is secured to an outer end of each of the pin portions to prevent axial displacement of the links. A cavity is defined in the pin to communicate lubricant to the pivotal connections of the second links on the pin and end caps are secured on the ends of the pin to close the cavity and to cover the snap rings.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: April 24, 1979
    Assignee: Caterpillar Tractor Co.
    Inventors: Peter Hakkenberg, Richard E. Livesay