3620244

Information

• Patent Grant
• 3620244

• References
• Source

• Patent Number

  3,620,244

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1971
  53 years ago

• CPC

  • F16K31/128 - servo actuated
  • Y10S137/907 - Vacuum-actuated valves
  • Y10T137/0491 - Valve or valve element assembling, disassembling, or replacing
  • Y10T137/4343 - By-pass cleaning
  • Y10T137/7822 - Reactor surface closes chamber
  • Y10T137/7836 - Flexible diaphragm or bellows reactor

• US Classifications

  • 137 - Fluid handling
  • 267 - Spring devices