Patents by Inventor Donald M. Winchester

Donald M. Winchester 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: 6006888
    Abstract: A double spiral conveyor includes two spiral chutes, each chute being positioned diametrically opposite the other in a helical relationship about a central axis of a central tubular support. The spiral chutes begin in the same upper horizontal plane and terminate in the same lower horizontal plane. The spiral conveyor further includes a rotatable discharge pan that receives the transported product as it is discharged from the two spiral chutes and directs the product to a predetermined location.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: December 28, 1999
    Inventor: Donald M. Winchester
  • Patent number: 5186310
    Abstract: A vertical lift conveyor has two adjacent, parallel conveyors for simultaneous upward movement of adjacent surfaces of the parallel conveyors, with one of the conveyors having spaced apart flites attached thereto, for transporting bulk food items along a multi-level transport path. The conveyors rotate in opposite directions, but are geared to run from a single gear box to insure equal belt velocity. One of the conveyors is pivotally hinged to the other conveyor for swinging the pivotally attached conveyor away from the remaining conveyor for access to the facing surfaces of the parallel conveyors.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: February 16, 1993
    Inventor: Donald M. Winchester
  • Patent number: 4724953
    Abstract: A food conveyor apparatus includes a frame, a cross support structure, and a platform. A plurality of rows of oblong holes are cut along the lengths of the platform, each row being offset from the adjacent rows of holes. The platform supports an endless mesh conveyor belt and containment clips mounted along the edges of the platform hold the conveyor belt on the platform. A plurality of vertical tubular supports are secured between the bottom of the platform and a plurality of horizontal tubular supports that extend across the width of the platform between the frame struts. A sideboard is mounted to the frame struts and positioned above the edges of the conveyor belt along the length of the platform.
    Type: Grant
    Filed: October 15, 1986
    Date of Patent: February 16, 1988
    Inventor: Donald M. Winchester