3039186

Information

• Patent Grant
• 3039186

• References
• Source

• Patent Number

  3,039,186

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1962
  64 years ago

• CPC

  • E06C7/085 - achieved by deforming the rung or the stile
  • B21D39/063 - for assembling ladders
  • E06C7/087 - with a connecting piece installed around the rung
  • Y10T29/49934 - by axially applying force
  • Y10T29/49938 - Radially expanding part in cavity, aperture, or hollow body
  • Y10T29/4994 - Radially expanding internal tube
  • Y10T403/4622 - Gland type
  • Y10T403/4642 - Integral transverse projection on side, e.g., necked, etc.
  • Y10T403/475 - Member cast in situ

• US Classifications

  • 029 - Metal working
  • 182 - Fire escape, ladder, or scaffold
  • 285 - Pipe joints or couplings
  • 403 - Joints and connections