Patents by Inventor Mark C. James

Mark C. James 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).

  • Patent number: 4381165
    Abstract: The bin unloader belt drive for a combine includes a clutching idler mechanism in which the start-up torque delivered by the belt (11) from a drive pulley (12) to a driven pulley (13) is limited by using a dampener (51) which retards the spring biased movement of a clutching idler pulley (21) from its drive disestablishing position to its drive establishing position.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: April 26, 1983
    Assignee: Allis-Chalmers Corporation
    Inventors: Mark C. James, Ronald G. Borushaski
  • Patent number: 4262679
    Abstract: A pivoted safety door for a harvester is disposed ahead of the concave and has a separately pivoted lip which normally rests on a front edge of the concave. An adjustably biased detent mechanism releases the lip, permitting it to pivot out of engagement with the concave, when a rock or the like of substantial size attempts to enter the threshing chamber and is engaged by the threshing rotor. A first manual control is provided for pivoting the main body of the door from its tripped position to a closed position. A second manual control is provided for pivoting the lip relative to the door to restore it to its detented position, this last mentioned function being effected after the main body of the door has been restored to a closed position. The detent mechanism for the lip includes a pair of adjustably loaded spring biased plungers which act on opposite sides of a detented part.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: April 21, 1981
    Assignee: Allis-Chalmers Corporation
    Inventor: Mark C. James