2891784

Information

• Patent Grant
• 2891784

• References
• Source

• Patent Number

  2,891,784

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1959
  65 years ago

• CPC

  • G05D16/0663 - using a spring-loaded membrane with a spring-loaded slideable obturator
  • Y10T74/20642 - Hand crank
  • Y10T74/2084 - Knob or dial
  • Y10T74/2101 - Cams
  • Y10T137/261 - Relief port through common sensing means
  • Y10T137/7818 - Valve head in inlet chamber

• US Classifications

  • 267 - Spring devices
  • 074 - Machine element or mechanism
  • 137 - Fluid handling