3618689

Information

• Patent Grant
• 3618689

• References
• Source

• Patent Number

  3,618,689

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1971
  53 years ago

• CPC

  • F16K17/34 - in which the flow-energy of the flowing medium actuates the closing mechanism
  • G05D16/0663 - using a spring-loaded membrane with a spring-loaded slideable obturator
  • Y10T137/7729 - Reset by pressure equalization valve or by-pass
  • Y10T137/7731 - Fluid counter-biased or unseated valve

• US Classifications

  • 137 - Fluid handling