3225581

Information

• Patent Grant
• 3225581

• References
• Source

• Patent Number

  3,225,581

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1965
  59 years ago

• CPC

  • F16L19/04 - using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
  • B21D41/025 - by means of impact-type swaging hand tools

• US Classifications

  • 072 - Metal deforming