1931356

Information

• Patent Grant
• 1931356

• References
• Source

• Patent Number

  1,931,356

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1933
  91 years ago

• CPC

  • F01P7/12 - by thermostatic control
  • Y10S165/093 - Adjustable radiator face covering means
  • Y10T137/87434 - Valves deform to close passage

• US Classifications

  • 165 - Heat exchange
  • 049 - Movable or removable closures
  • 092 - Expansible chamber devices
  • 137 - Fluid handling
  • 160 - Flexible or portable closure, partition, or panel
  • 251 - Valves and valve actuation
  • 454 - Ventilation