3346992

Information

• Patent Grant
• 3346992

• References
• Source

• Patent Number

  3,346,992

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1967
  57 years ago

• CPC

  • E05F15/614 - operated by meshing gear wheels, one of which being mounted at the wing pivot axis operated by a motor acting directly on the wing pivot axis
  • E05Y2201/236 - using force or torque
  • E05Y2800/11 - Manual wing operation
  • E05Y2900/132 - Doors
  • Y10T74/18328 - Alternately rotated screw
  • Y10T74/18576 - including screw and nut

• US Classifications

  • 049 - Movable or removable closures
  • 074 - Machine element or mechanism
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing