1529441

Information

• Patent Grant
• 1529441

• References
• Source

• Patent Number

  1,529,441

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1925
  100 years ago

• CPC

  • F16F1/04 - Wound springs
  • B21F3/02 - helically
  • B21F3/04 - externally on a mandrel or the like
  • B21F15/04 - without additional connecting elements or material
  • B21F17/00 - Jacketing or reinforcing articles with wire
  • B21F35/00 - Making springs from wire
  • B21F35/006 - Double twist coil springs
  • Y10T29/49609 - Spring making
  • Y10T428/12326 - with provision for limited relative movement between components
  • Y10T428/12333 - Helical or with helical component

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 029 - Metal working
  • 267 - Spring devices
  • 473 - Games using tangible projectile