Patents by Inventor Donald W. Reid

Donald W. Reid 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: 5911373
    Abstract: A self-propelled rock crushing machine which utilizes the drive unit to a conventional excavator of the type normally found in the construction industry. Each of the components on the self-propelled rock crushing machine is operated by a hydraulic motor and is removably secured to its vehicular frame. The components include a hopper that stores material to be crushed, an apron feeder that collects material from the hopper and carries the material toward the crushing device, a grizzly separator that separates undersize material from the larger material to be crushed, a crushing device, and a discharge conveyor that receives crushed material and discharges the same from its outer end. A water tank and pump also are provided for preparing properly moisturized crushed material which is suited for backfill operations.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: June 15, 1999
    Inventor: Donald W. Reid
  • Patent number: 5772132
    Abstract: A self-propelled rock crushing machine prepared according to the present invention utilizes the drive unit to a conventional excavator of the type normally found in the construction industry. For simplified repairs or replacement of its components, each of the components on the self-propelled rock crushing machine are removably secured to its vehicular frame. The components include a hopper that stores material to be crushed, an apron feeder that collects material from the hopper and carries the material toward the crushing device, a grizzly separator that separates undersize material from the larger material to be crushed, a crushing device, and a discharge conveyor that receives crushed material and discharges the same from its outer end. A water tank and pump also are provided for preparing properly moisturized crushed material which is suited for backfill operations.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: June 30, 1998
    Inventor: Donald W. Reid