Patents Assigned to Fluid Energy Controls, Inc.
  • Operating railroad switches
    Patent number: 5772157
    Abstract: The railroad power switch operates from the energy stored in a hydraulic accumulator. A pump charges the accumulator and keeps it charged. A power cylinder acts on the moveable rail of a railroad switch through this hydraulic energy. The energy opens the switch, closes it, and stabilizes it during train trailing through the switch. A spring pack supplements this hydraulic energy in stabilizing the switch.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: June 30, 1998
    Assignee: Fluid Energy Controls, Inc.
    Inventors: Robert B. Lauck, Joachim G. Bush