3688550

Information

• Patent Grant
• 3688550

• References
• Source

• Patent Number

  3,688,550

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1972
  52 years ago

• CPC

  • E04B1/5837 - of substantially circular form
  • B21D39/044 - perpendicular
  • E04B1/19 - Three-dimensional framework structures
  • E04B1/2403 - Connection details of the elongated load-supporting parts
  • E04G7/02 - with separate coupling elements
  • F16B7/00 - Connections of rods or tubes
  • E04B1/5843 - with ends provided with protuberances
  • E04B1/585 - with separate connection devices
  • E04B2001/1927 - of essentially circular cross section
  • E04B2001/193 - with flatened connecting parts
  • E04B2001/1951 - uninterrupted struts situated in the outer planes of the framework
  • E04B2001/1963 - Screw connections with axis at an angle
  • E04B2001/1975 - Frameworks where the struts are directly connected to each other
  • E04B2001/2409 - Hooks, dovetails or other interlocking connections
  • E04B2001/2439 - Adjustable connections
  • E04B2001/2472 - Elongated load-supporting part formed from a number of parallel profiles
  • E04B2001/405 - Brackets
  • Y10T29/49616 - Structural member making

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working