Electrically controlled door lock

US8555685B2 · kind B2 · utility

Inventors

• George Frolov · Farmington, US
• James J. Scott · Rolla, US

Key dates

• Filing date: Oct 4, 2010
• Grant date: Oct 15, 2013
• Expiry date: Jul 14, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T292/1089
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

An electrically controlled door lock device with a lockset with an inside handle, an outside handle, a spring loaded continuous spindle, biased to maintained a lockset's latch in a projected position and connecting the lockset and the outside handle, a first half and a second half of a clutch connecting the continuous spindle and the inside handle with a spring maintaining the second half of the clutch in predetermined position relative to the first half of the clutch. There is also a mechanical means blocking the first half of the clutch from rotation and electromechanical means controlling the blocking means, the mechanical means built into the second half of the clutch, allowing the second half of the clutch a predetermined degree of free rotation before it engages with the first half of the clutch, the mechanical means built into second half of the clutch, mechanically inhibiting the blocking means.