Patents by Inventor Gerard Debrock

Gerard Debrock 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).

  • Control system for a vibratory compactor
    Patent number: 6241420
    Abstract: A fluid control system (50) is provided for a work machine (10) having first and second compacting drums (14,16). First and second hydraulic motors (28,32) are connected in series and power first and second vibratory mechanisms (26,30) located within the first and second compacting drums (14,16). A control valve (60) supplies pressurized fluid to the first hydraulic motor (28). The pressurized fluid is transferred through a bypass circuit (74) around the second hydraulic motor (32). A sequencing device (80) closes the bypass circuit (74) transferring the pressurized fluid to the second hydraulic motor (32) after actuation of the first hydraulic motor (28).
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: June 5, 2001
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Jacques Perrin, Gerard Debrock