Patents by Inventor Harold G. Schaefer

Harold G. Schaefer 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).

  • Device for cleaning endless conveyors
    Patent number: 6601692
    Abstract: A device is provided for cleaning an endless conveyor. The device includes an endless brush belt engageable with the endless conveyor. A tension mechanism is provided for placing a tension on the endless brush belt. A clutch mechanism is operatively connected to the tension mechanism. The clutch mechanism prevents the placement of additional tension on the endless brush belt in response to tension exceeding a predetermined maximum tension.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: August 5, 2003
    Assignee: Schaefer Brush Manufacturing
    Inventors: Harold G. Schaefer, Anthony A. Brooks
  • Device for cleaning endless conveyors
    Publication number: 20030010604
    Abstract: A device is provided for cleaning an endless conveyor. The device includes an endless brush belt engageable with the endless conveyor. A tension mechanism is provided for placing a tension on the endless brush belt. A clutch mechanism is operatively connected to the tension mechanism. The clutch mechanism prevents the placement of additional tension on the endless brush belt in response to tension exceeding a predetermined maximum tension.
    Type: Application
    Filed: July 13, 2001
    Publication date: January 16, 2003
    Inventors: Harold G. Schaefer, Anthony A. Brooks