Patents by Inventor Jean Koehl

Jean Koehl 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).

  • Rapid interchangeability device for earth-moving devices carrying vibrators
    Patent number: 5195865
    Abstract: The rapid attachments of the carrier are identical to those of the vibrator. The attachments of the corresponding tool carriers or tools are also identical for enabling thereby an entire interchangeability of all the elements between themselves. Adjusting devices are provided to adjust the resiliency amplitude of the dampers.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: March 23, 1993
    Inventor: Jean Koehl