Patents by Inventor Reinhard Walerowski

Reinhard Walerowski 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).

  • Crane trolley with a hoist
    Patent number: 4221301
    Abstract: A crane trolley is movable by means of rollers on the lower flange of a runway girder, the crane trolley having a hoist, the latter being inserted in one of the two sides plates of the crane trolley. The load chain of the host is guided by means of guide rollers. The chain is fastened with one end to the crane trolley and is driven by the load chain wheel of the hoist and carries the lower block with the load hook. The hoist is arranged off-set in the longitudinal direction of the crane trolley relative to the lower block and the load chain is guided over two additional guide rollers in S-shape between the load chain wheel of the hoist and the pulling chain portion of the lower block.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: September 9, 1980
    Assignee: Heinrich de Fries Gesellschaft mit beschrankter Haftung
    Inventor: Reinhard Walerowski