2637971

Information

• Patent Grant
• 2637971

• References
• Source

• Patent Number

  2,637,971

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1953
  71 years ago

• CPC

  • B61C9/14 - hydraulic, including combinations with mechanical gearing
  • B61C17/12 - Control gear Arrangements for controlling locomotives from remote points in the train or when operating in multiple units
  • F02D25/00 - Controlling two or more co-operating engines
  • F16H61/40 - hydrostatic
  • F16H61/444 - by changing the number of pump or motor units in operation

• US Classifications

  • 060 - Power plants