2971212

Information

• Patent Grant
• 2971212

• References
• Source

• Patent Number

  2,971,212

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1961
  63 years ago

• CPC

  • E05F3/226 - with means to adjust the closed position of the wing
  • E05F3/106 - with crank-arm transmission between driving shaft and piston within the closer housing
  • E05Y2201/20 - Brakes Disengaging means
  • E05Y2201/232 - by automatically acting means
  • E05Y2201/458 - Valves
  • E05Y2900/132 - Doors
  • Y10S16/09 - Hydraulic actuated checks, closers
  • Y10T16/2774 - Floor pivot

• US Classifications

  • 016 - Miscellaneous hardware
  • 138 - Pipes and tubular conduits
  • 188 - Brakes
  • 267 - Spring devices