Patents by Inventor Lawrence E. Stevens

Lawrence E. Stevens 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).

  • Holding device for a tapered shaft and method of holding a tapered shaft
    Patent number: 5137243
    Abstract: A relatively rigid device for holding a circular cylindrical tapered shaft including a top and bottom end, a first and second outer side opposite each other, a third side opposite a fourth side, the first outer side having a channel extending along its length which abuts a tapered first bore, the second outer side having a channel extending along its length which abuts a tapered second bore, the tapered bores extending from the top end to the bottom end between the third and fourth sides, each of the third and fourth sides having an outer grip surface upon which force can be applied to firmly grip the device.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: August 11, 1992
    Assignee: JDMS Corporation
    Inventors: Dan D. Stevens, Michael D. Stevens, Lawrence E. Stevens