644422

Information

• Patent Grant
• 644422

• References
• Source

• Patent Number

  644,422

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1900
  124 years ago

• CPC

  • F16K29/00 - Arrangements for movement of valve members other than for opening and closing the valve
  • Y10T137/428 - Valve grinding motion of valve on seat
  • Y10T137/4329 - Separable
  • Y10T137/7783 - Valve closes in responses to reverse flow
  • Y10T137/7915 - Guide stem
  • Y10T137/863 - Access and outlet

• US Classifications

  • 137 - Fluid handling