Patents by Inventor Donald H. Ranheim, Jr.

Donald H. Ranheim, Jr. 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).

  • Torque wrench
    Patent number: 4060137
    Abstract: A torque wrench is presented having bidirectional operating capability, accurate readout, and preset or load selection capability. The input drives a pair of ring gears, one of which is connected to the output of the wrench and the other of which is part of a reaction arm system which interacts with the readout and preset features.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: November 29, 1977
    Assignee: Raymond Engineering Inc.
    Inventors: John H. Bickford, Donald H. Ranheim, Jr., Willard A. Saxby
  • Self-aligning load transmission post
    Patent number: 4012084
    Abstract: A self-aligning post is presented to direct and/or balance a load being transmitted. The post has a semispherical end section split from the remaining main cylindrical portion of the post whereby misalignment of the main cylindrical portion is compensated by the split end section.
    Type: Grant
    Filed: January 28, 1975
    Date of Patent: March 15, 1977
    Assignee: Raymond Engineering Inc.
    Inventor: Donald H. Ranheim, Jr.