Patents by Inventor Mark A. Zercher

Mark A. Zercher 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).

  • Publication number: 20110259072
    Abstract: An apparatus for manufacturing a cable bolt includes a rotatably driven pay-out reel (20) for paying out a cable (1) coiled in use about the pay-out reel (20). An upstream accumulator (40) is located downstream of the pay-out reel (20) for accumulating cable (1) advanced from the pay-out reel (20). A bulb forming device (80) is located downstream of the upstream accumulator (40), for forming a bulb (2) in cable (1) advanced from the upstream accumulator (40). A cable drive (60) is located downstream of the upstream accumulator (40), for advancing cable (1) through the bulb forming device (80). The pay-out reel (20) is configured to rotate at least substantially continuously whilst the cable drive (60) is configured to advance the cable (1) after formation of each bulb (2) to a position for formation of a subsequent bulb (2) in the cable.
    Type: Application
    Filed: December 22, 2009
    Publication date: October 27, 2011
    Inventors: David William Evans, Mark A. Zercher