3114541

Information

• Patent Grant
• 3114541

• References
• Source

• Patent Number

  3,114,541

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1963
  62 years ago

• CPC

  • E05F3/224 - for assisting in opening the wing
  • E05F15/53 - for swinging wings
  • E05F15/63 - operated by swinging arms
  • E05F3/06 - in which a torsion spring rotates a member around an axis perpendicular to the axis of the piston
  • E05F3/102 - with rack-and-pinion transmission between driving shaft and piston within the closer housing
  • E05Y2201/41 - for closing
  • E05Y2201/422 - for opening
  • E05Y2201/434 - Electromotors Details thereof
  • E05Y2201/646 - continuous
  • E05Y2201/656 - Chains
  • E05Y2800/113 - Power assistance
  • E05Y2900/132 - Doors
  • Y10T16/5995 - Coil

• US Classifications

  • 049 - Movable or removable closures
  • 016 - Miscellaneous hardware