3894570

Information

• Patent Grant
• 3894570

• References
• Source

• Patent Number

  3,894,570

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1975
  49 years ago

• CPC

  • B23K31/025 - Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces
  • B21H3/027 - Rolling of self-tapping screws
  • F16B33/02 - Shape of thread Special thread-forms
  • F16B33/06 - Surface treatment of parts furnished with screw-thread
  • Y10S411/03 - Utilizing fluid pressure
  • Y10S411/914 - Coated bolt
  • Y10S411/938 - Distorted thread

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 072 - Metal deforming
  • 118 - Coating apparatus
  • 470 - Threaded, headed fastener, or washer making: process and apparatus