Patents by Inventor Hendrikus C. van Staveren

Hendrikus C. van Staveren 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: 4497161
    Abstract: A device for mowing agricultural crops, particularly grass, mainly comprising a continuous main beam (1) bearing a common main drive and a plurality of housings fastened to the front side of said beam (1), each accommodating an intermediate drive to an upstanding rotary shaft for a cutting member (3), wherein each housing is further provided with a freely rotatable member (52) bearing on the ground, and wherein the cutting members are connected through a safety clutch with the rotary shaft so that damage of the transmission gears in the drive due to jamming of the cutting member can be avoided, an undisturbed rearward transport of the crop is ensured and a free, overlapping moving region between two adjacent cutting members is obtained.
    Type: Grant
    Filed: July 6, 1982
    Date of Patent: February 5, 1985
    Assignee: Multinorm, B.V.
    Inventors: Hermanus H. Vissers, Hendrikus C. Van Staveren
  • Patent number: 4468916
    Abstract: The casing of a rotary mowing device is formed of a series of tubular sections secured together to form a hollow, rigid unit. The intermediate portion is formed of a series of similar sections defining an open-ended, generally rectangular tube and there are two end sections closing these ends. The casing houses a series of gears and at intervals upstanding shafts project from the casing and to which the rotary cutting members are attached. The parting line between sections are disposed in planes each of which contains the axis of one of the shafts.
    Type: Grant
    Filed: March 10, 1982
    Date of Patent: September 4, 1984
    Assignee: Multinorm B.V.
    Inventors: Hermanus H. Vissers, Hendrikus C. Van Staveren, Marinus H. Weststrate
  • Patent number: 4428181
    Abstract: A device for mowing crop, particularly grass, mainly comprising a frame (1) movable across the field having a girder (4) pivotably (6) connected to a sub-frame (5) and extending transversely of the direction of movement (P1) above a cutter bar (9) with cutting members (10) wherein the outermost cutting member (10) provided with a crop dividing drum on top drives the further cutting members (10) through a transmission accommodated in the cutter bar (9) so simplifying the transfer of driving power from the main frame to the cutter bar and ensuring a free passing of cut crop over the cutting members; a spring member is arranged between the subframe (5) and the girder (4) at a distance from said pivot shaft (6) in order to adapt the pressure of the cutter bar on the field.
    Type: Grant
    Filed: June 16, 1982
    Date of Patent: January 31, 1984
    Assignee: Multinorm, B. V.
    Inventors: Hendrikus C. van Staveren, Nicolaas Prins