Patents by Inventor Alain Zachary

Alain Zachary 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: 5013280
    Abstract: The secondary grain separator comprises an outer drum (12) constituted by at least two successive perforated lengths (18, 20, 22) having different mesh sizes, a feed chute (24) at the upstream end of the drum for pouring substances into the drum for separation along a vertical tangent, a curved wall (14) situated inside the drum and running from the chute at least as far as the bottom of the drum and defining an annular gap (16) for receiving the substances to be separated, deflector fins (30) inside the drum and inclined relative to the drum axis, and a collecting volute (34) surrounding the drum and including radially extending partitions (40, 42) defining collecting channels (44, 46, 48) facing the various lengths of the drum.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: May 7, 1991
    Inventor: Alain Zachary
  • Patent number: 4957467
    Abstract: A device for primary separation of grain and straw in a combine harvester for cereals, the combine comprising a chassis and wheels and, going from the front towards the rear relative to the longitudinal direction of combine displacement:a mower;a mown crop conveyor;a thresher; anda rotary drum separator;the separator further comprises:a rotary cylindrical drum disposed substantially horizontally in the longitudinal direction of the combine harvester and having an inlet orifice facing the thresher and an outlet orifice at the rear of the combine harvester;the drum comprising a cylindrical wall pierced by multiple perforations for passing grain, at least one internal rib fixed to the cylindrical wall and forming a helix at a first predetermined pitch extending over the entire length of the drum and a plurality of elongate drive members fixed around the drum and extending inwards, and disposed both longitudinally and circumferentially relative to the drum in such a manner as to form a set of successive portions
    Type: Grant
    Filed: September 28, 1989
    Date of Patent: September 18, 1990
    Inventor: Alain Zachary