3318413

Information

• Patent Grant
• 3318413

• References
• Source

• Patent Number

  3,318,413

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1967
  58 years ago

• CPC

  • E06C7/085 - achieved by deforming the rung or the stile
  • E06C7/087 - with a connecting piece installed around the rung
  • Y10T29/49934 - by axially applying force
  • Y10T403/4637 - Radially interposed, side-engaging shim or bushing
  • Y10T403/4958 - Separate deforming means remains with joint assembly
  • Y10T403/4966 - Deformation occurs simultaneously with assembly

• US Classifications

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