Patents by Inventor Joseph G. Bullock

Joseph G. Bullock 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).

  • Method and apparatus for regulating webs transported in a reel-to-reel web handler
    Patent number: 4406425
    Abstract: A web transport, such as a reel-to-reel magnetic recorder, includes a web regulator between one reel and a transducing station. In a constant tension web transport, web regulator ensures a relatively constant length of web between the transducing station and the one reel. In a preferred form the regulator is a vacuum chamber having a narrow web receiving opening and a wider cavity such that as the web forms a bight in the chamber into said wider cavity, air flows past the web to regulate bight size in accordance with web tension tending to maintain a constant web length.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: September 27, 1983
    Assignee: International Business Machines Corporation
    Inventors: Joseph G. Bullock, William J. Rueger
  • Tape drive system or the like
    Patent number: D284375
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: June 24, 1986
    Assignee: International Business Machines Corporation
    Inventors: Joseph G. Bullock, David M. Gresham, Ted F. Kelley, Leroy H. Moser, Kenneth L. White, Philip C. Yenerich, Roland Zapfe, Kurt W. Gibson