Patents by Inventor Michael L. Trowbridge

Michael L. Trowbridge 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).

  • Anti-backlash drive system
    Patent number: 5161424
    Abstract: An anti-backlash rack and pinion drive system comprising a pair of spur gears on parallel shafts engaging a rack with countertorque preload imposed by a positive timing belt engaging a pair of pulleys respectively coupled to the shafts. Slack on one side and a resilient transverse load applied to the other side of the belt provides counterspur gear tooth pressure on the rack equal to the maximum drive load effected through reversible rotation of one of the shafts.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: November 10, 1992
    Assignee: Cargill Detroit Corporation
    Inventors: Mark Saberton, Michael L. Trowbridge