Patents Assigned to Keystone Railway Equipment Co., Inc.
  • Hydraulic--pneumatic cushioning device with pressure indicator
    Patent number: 5351562
    Abstract: A hydraulic-pneumatic cushioning device including a pressure indicator mounted on the device or remote from the device and connected to the pressure chamber within the cushioning device. The indicator includes a recess and a small pin extending into the recess. The position of the pin relative to the recess provides a tactile indication of the condition of the cushioning device.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: October 4, 1994
    Assignee: Keystone Railway Equipment Co., Inc.
    Inventor: Mark P. Scott