Patents by Inventor Hans Bieri jun.

Hans Bieri jun. 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).

  • Cable saw machine for cutting concrete bodies, rocks or the like
    Patent number: 5645040
    Abstract: A pulley block is provided for rope storage to receive reserve cable or rope in a rope saw machine (3). The saw rope (1) is slung around the deflecting rollers of a stationary roller carrier and of a movable roller carrier (5,6) mounted on a frame (4). Two hydraulic motors drive the saw rope (1). A chain hoist (9) driven by a motor (10) moves the vertically ajustable roller carrier (6). By winding the saw rope (1) in different ways over additional rollers (22, 24, 26) various rope storage capacities are obtained. This design allows the free rope loop to be stored in a particularly space-saving manner.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: July 8, 1997
    Assignee: Hydrostress AG
    Inventor: Hans Bieri jun.