Patents Assigned to Edsco, Inc.
  • Hopper discharge valve
    Patent number: 4345859
    Abstract: A hopper discharge valve for railway hopper cars used in transporting granular lading with the valve including a fully rotatable valve shaft having a plurality of discharging channels formed in its periphery throughout its length, with the channels being arranged so as to provide simultaneous discharge from both ends of the hopper car or from selected ends thereof.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: August 24, 1982
    Assignee: Edsco, Inc.
    Inventor: Harry G. Robertson