Patents by Inventor Charles L. Van Ness

Charles L. Van Ness 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).

  • System and method for controlling AC motor driven multi-unit printing press
    Patent number: 5615609
    Abstract: A system and method for controlling the registration of a multi-unit printing press for corrugated board materials permits the use of AC motors for driving the printing press. A master AC motor drives a master printing unit, and a master AC driving device is electrically coupled to the master AC motor for controlling the speed of the master AC motor. A master pulse generating device produces output pulses relating to the rotary motion of the master printing unit. A follower AC motor drives a follower printing unit, and a follower AC driving device electrically coupled to the follower AC motor controls the speed of the follower AC motor relative to the master AC motor. A follower pulse generating device produces output pulses relating to the rotary motion of the follower printing unit.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: April 1, 1997
    Assignee: The Lawrence Paper Company
    Inventors: Alan M. Hill, William R. Meeks, Charles L. Van Ness