Patents by Inventor Dennis William Dicker

Dennis William Dicker 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).

  • Closed center hoist valve with snubbing
    Patent number: 11654815
    Abstract: A valve for controlling a hydraulic cylinder on a work machine may include a raising position configured for placing a pump in fluid communication with a cap end of the hydraulic cylinder. The valve may also include closed center position configured for closing off fluid communication to the cap end line and the rod end line. The valve may also include a lowering position configured for placing the pump in fluid communication with the rod end of the hydraulic cylinder. The valve may also include a snubbing position configured for placing the cap end in restricted flow fluid communication with the tank and for placing the rod end in restricted flow fluid communication with the tank.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: May 23, 2023
    Assignee: Caterpillar Inc.
    Inventors: Edward William Mate, William N. O'Neill, Dennis William Dicker
  • CLOSED CENTER HOIST VALVE WITH SNUBBING
    Publication number: 20220242295
    Abstract: A valve for controlling a hydraulic cylinder on a work machine may include a raising position configured for placing a pump in fluid communication with a cap end of the hydraulic cylinder. The valve may also include closed center position configured for closing off fluid communication to the cap end line and the rod end line. The valve may also include a lowering position configured for placing the pump in fluid communication with the rod end of the hydraulic cylinder. The valve may also include a snubbing position configured for placing the cap end in restricted flow fluid communication with the tank and for placing the rod end in restricted flow fluid communication with the tank.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 4, 2022
    Applicant: Caterpillar Inc.
    Inventors: Edward William Mate, William N. O'Neill, Dennis William Dicker