Patents by Inventor Alfred Krewitt

Alfred Krewitt 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).

  • Chain for supporting energy conveying means, and chain link therefor
    Patent number: RE33339
    Abstract: A chain for supporting energy conveying means, especially power lines and hoses, and a chain link therefor, according to which the chain links are of H-shape having two oppositely located laterally elastically yieldable arms interconnected by a transverse wall while two oppositely located arm sections of each link are provided with holes and the other two oppositely located arm sections of the same link are provided with studs having a diameter corresponding to a slide fit in said holes, the arrangement being such that the studs of one chain link pivotally engage the holes of the next following chain link.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: September 18, 1990
    Assignee: Kabelschlepp Gesellschaft mit beschrankter Haftung
    Inventors: Klaus Heidrich, Alfred Krewitt, Kurt Loos, Fritz Ipithan