Patents by Inventor Leonardus J. Wildenberg Van Den

Leonardus J. Wildenberg Van Den 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).

  • Gathering element for a piston press
    Patent number: 6862876
    Abstract: In a piston press for bales of harvested material, comprising a plunger piston (K) movable forwards and backwards, a feeding channel (Z) including a reel (R), driven by a crank mechanism, with reel levers (10) on a crankshaft journal (8) of the crank mechanism, a control drive, and a switching device (V) for changing the movement path (l, f) of the reel tips between loading and feeding strokes, wherein a control arm (11) elongating the reel lever (10) is coupled with a control rod (13) supported in a displaceable control joint (G) and the control joint (G) is fixable in at least one position corresponding to a feeding stroke movement path, the control joint (G) is fixed only in the position for a feeding stroke (l) while it remains freely movable during each loading stroke (f).
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 8, 2005
    Assignee: Kverneland Geldrop BV
    Inventors: Leonardus H. M. Amstel Van, Matthijs J. Wondergem, Leonardus J. Wildenberg Van Den, Jean-Claude Galant