Bypassing Between Expanding Chamber And Closed Or Throttled Contracting Chamber (e.g., Cushioning, Etc.) (23) Patents (Class 91/399)
  • Hydraulic cab-tilting systems
    Patent number: 3972557
    Abstract: A hydraulic ram system for tilting the cab of a large commercial vehicle to provide access to the engine and other mechanism, where the end of the ram cylinder in which the ram piston is located when the cab is in the lowered position is of increased bore diameter and provides enough clearance around the piston to render the ram passive in this position, and the length of the increased diameter portion of the cylinder bore is sufficient to accommodate the maximum movement of the cab on its suspension.
    Type: Grant
    Filed: October 25, 1974
    Date of Patent: August 3, 1976
    Assignee: Clayton Dewandre Company Limited
    Inventors: Michael R. Hudston, Henry J. Levington