Patents by Inventor Ype Bouma

Ype Bouma 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).

  • Stop lock assembly for a pivotal tower
    Patent number: 3934381
    Abstract: A stop lock assembly for a tower mounted on a platform and pivoted thereon whereby the tower is adapted to be raised from a horizontal position to a vertical, erected position. Stop members are operatively connected between the platform and the tower to limit the pivotal movement of the tower to the erected position and to hold portions of the platform and tower in alignment for the reception of locking pins extending therebetween for holding the tower in the erected position.
    Type: Grant
    Filed: April 22, 1974
    Date of Patent: January 27, 1976
    Assignee: General Crane Industries Limited
    Inventor: Ype Bouma