Patents by Inventor Berend Broijl

Berend Broijl 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: 4184313
    Abstract: The invention relates to an agricultural implement comprising at least one upright shaft coupled with an agricultural tractor and allowing crop working members to rotate about the same, said shaft bearing on the ground by means of a support at the lower end; the invention has for its object to provide a supporting member of comparatively light weight, whose supporting point on the ground is located at a minimum distance from the operating working members so that the working members follow the unevennesses of the ground as closely as possible; for this purpose the invention provides an agricultural implement having a dish-shaped supporting member which is arranged eccentrically with respect to the upright shaft in the direction of the operating working members.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: January 22, 1980
    Inventors: Berend Broijl, Nicolaas vanderPlas
  • Patent number: 4015413
    Abstract: The invention relates to an agricultural implement for raking or spreading crop lying on the ground comprising a frame attached to the three-point lift of a tractor and at least one pair of rake wheels suspended to said frame and driven by the power take-off shaft of the tractor; the improvement concerns the frame comprising a longitudinal beam coupled with the tractor and extending in the direction of movement and a transverse beam pivoted to the former, the pivot having a vertical hinge pin as well as a hinge pin extending in the length direction, and an adjustable coupling member being arranged between the longitudinal and transverse beams for the adjustment of the angle formed by the beams.
    Type: Grant
    Filed: August 19, 1975
    Date of Patent: April 5, 1977
    Inventors: Nicolaas van der Plas, Berend Broijl