Patents by Inventor Harold Richard Lindstrom

Harold Richard Lindstrom 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).

  • Hydraulic governor
    Patent number: 3987627
    Abstract: A hydraulic governor valve coordinates the flow of crop material to a processing unit with the rate of processing of material therein. A gear driven pump is powered by the processing unit in direct relation therewith to drive a conveyor hydraulic motor. The flow responsive governor valve diverts flow to a reservoir when the processing unit is overloaded and to the conveyor motor otherwise to coordinate delivery of crop material with processing of same.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: October 26, 1976
    Assignee: Deere & Company
    Inventor: Harold Richard Lindstrom