1691758

Information

• Patent Grant
• 1691758

• References
• Source

• Patent Number

  1,691,758

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1928
  96 years ago

• CPC

  • G05D16/0663 - using a spring-loaded membrane with a spring-loaded slideable obturator
  • Y10T137/6167 - Opposite duplicate surfaces of unitary structure
  • Y10T137/6181 - Successively used adjacent independent elements
  • Y10T137/6579 - Circulating fluid in heat exchange relationship
  • Y10T137/6606 - With electric heating element
  • Y10T137/7732 - With mechanical stop against reopening

• US Classifications

  • 137 - Fluid handling
  • 092 - Expansible chamber devices
  • 251 - Valves and valve actuation