Patents by Inventor Elmer C. Kiekhaefer

Elmer C. Kiekhaefer 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).

  • Stern drive mechanism
    Patent number: 4297097
    Abstract: The stern drive installation includes a mounting bracket assembly for securement to the transom of a watercraft. The bracket assembly is provided with a transverse horizontal bore rearwardly of the transom for receiving one end of the horizontal cylindrical portion of the upper housing of the drive unit. A bracket assembly addition is provided with a horizontal bore which rotatably receives the opposite end of the horizontal cylindrical portion of the upper housing and is secured to the bracket assembly. The bracket assembly and the addition thereto serve to rotatably support the drive unit and provide for tilt movement of the unit on a horizontal transverse axis. The lower housing of the drive unit is dirigibly connected to the upper housing for support and to provide for pivotal movement of the lower housing relative to the upper housing to provide for steering control of the watercraft.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: October 27, 1981
    Inventor: Elmer C. Kiekhaefer
  • Outboard unit of an inboard-outboard drive for watercraft
    Patent number: D266516
    Type: Grant
    Filed: August 24, 1979
    Date of Patent: October 12, 1982
    Inventor: Elmer C. Kiekhaefer