3449789

Information

• Patent Grant
• 3449789

• References
• Source

• Patent Number

  3,449,789

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1969
  55 years ago

• CPC

  • E05F3/104 - with cam-and-slide transmission between driving shaft and piston within the closer housing
  • E05F3/12 - Special devices controlling the circulation of the liquid
  • E05F3/225 - mounted at the bottom of wings
  • E05F3/226 - with means to adjust the closed position of the wing
  • E05Y2201/20 - Brakes Disengaging means
  • E05Y2201/232 - by automatically acting means
  • E05Y2201/458 - Valves
  • E05Y2201/492 - Spring tensioners, tension sensors
  • E05Y2201/70 - Nuts
  • E05Y2600/00 - Mounting or coupling arrangements for elements provided for in this subclass
  • E05Y2800/12 - Sealing
  • E05Y2800/28 - tubular
  • E05Y2800/40 - Protection
  • E05Y2900/132 - Doors
  • Y10S16/09 - Hydraulic actuated checks, closers
  • Y10T16/27 - Checks and closers
  • Y10T16/2774 - Floor pivot

• US Classifications

  • 016 - Miscellaneous hardware