2520232

Information

• Patent Grant
• 2520232

• References
• Source

• Patent Number

  2,520,232

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1950
  74 years ago

• CPC

  • F16B37/12 - with thread-engaging surfaces formed by inserted coil-springs, discs, or the like Independent pieces of wound wire used as nuts Threaded inserts for holes
  • F16B25/0015 - the material being a soft organic material
  • F16B25/0094 - the screw being assembled or manufactured from several components
  • F16B25/106 - by means of a self-piercing screw-point
  • Y10S411/947 - Elastic-gripping action
  • Y10S411/949 - Rachet and bolt-carried pawl

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener