3786981

Information

• Patent Grant
• 3786981

• References
• Source

• Patent Number

  3,786,981

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1974
  51 years ago

• CPC

  • G02B6/4435 - Corrugated mantle
  • B23K1/002 - Soldering by means of induction heating
  • B23K1/008 - Soldering within a furnace
  • B23K1/16 - longitudinal seams
  • B23K37/053 - aligning cylindrical work Clamping devices therefor
  • H01B13/2653 - Details of the soldering stage
  • Y10T29/5185 - Tube making

• US Classifications

  • 228 - Metal fusion bonding
  • 029 - Metal working
  • 219 - Electric heating