Patents by Inventor Andrew C. Knight

Andrew C. Knight 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).

  • Crop comminuting apparatus having vibrating cutting blades
    Patent number: 4518124
    Abstract: An apparatus for comminuting crop includes a duct through which the crop is fed by a reciprocating piston with the duct having reciprocating knives extending thereacross for cutting the crop. The knives are spring-mounted for movement under crop pressure in the horizontal plane against the returning influence of a compression spring.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: May 21, 1985
    Assignee: National Research Development Corporation
    Inventors: Wilfred E. Klinner, Andrew C. Knight
  • Pull-type agricultural machine
    Patent number: 4177625
    Abstract: The present invention relates to pull-type harvesting machines such as mower-conditioners and comprises a main frame fitted with ground-engaging wheels, a header adjustably mounted on and forwardly of the main frame and comprising drum type mower units, lifting means operable to move the main frame relative to the ground and the header relative to the main frame and an arched drawbar pivotally attached to the main frame and pivotable over the header from a machine operative position to a machine transport position and vice versa.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: December 11, 1979
    Assignee: Sperry Rand Corporation
    Inventors: Andrew C. Knight, Nigel W. Meek