3550634

Information

• Patent Grant
• 3550634

• References
• Source

• Patent Number

  3,550,634

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1970
  54 years ago

• CPC

  • F16L55/052 - Pneumatic reservoirs
  • F15B1/086 - the gas cushion being entirely enclosed by the separating means
  • F16L55/053 - the gas in the reservopir being separated from the fluid in the pipe
  • F15B2201/205 - using gas
  • F15B2201/3154 - the flexible separating means being completely enclosed
  • F15B2201/411 - having valve means

• US Classifications

  • 138 - Pipes and tubular conduits
  • 073 - Measuring and testing