3822870

Information

• Patent Grant
• 3822870

• References
• Source

• Patent Number

  3,822,870

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1974
  50 years ago

• CPC

  • F16L11/08 - with reinforcements embedded in the wall
  • B29D23/001 - Pipes; Pipe joints
  • F16F1/426 - Radial flexion of ring-type springs
  • F16F3/12 - the steel spring being in contact with the rubber spring
  • B29K2021/00 - Use of unspecified rubbers as moulding material
  • B29K2105/06 - containing reinforcements, fillers or inserts
  • F16F2236/025 - radial flexion of ring-type springs

• US Classifications

  • 267 - Spring devices