1538559

Information

• Patent Grant
• 1538559

• References
• Source

• Patent Number

  1,538,559

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1925
  99 years ago

• CPC

  • F16B39/108 - with a locking washer under the nut or bolt head having at least one tongue or lug folded against the nut or bolt head, or against the object itself
  • Y10S411/96 - Friction
  • Y10S411/983 - Inelastic tongue
  • Y10T74/2199 - Set screw

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 074 - Machine element or mechanism
  • 470 - Threaded, headed fastener, or washer making: process and apparatus