Patent · US Active

Dead locking deadbolt

US7712343B2 · kind B2 · utility

24Cited by

41References

11Claims

0Family size

Assignee

Master Lock Company LLC · US

Inventors

Jerry R. Smith · Columbus, US
Mike Enslow · Milwaukee, US
Dean D. Hacker · Oak Creek, US
John Weber · Lilburn, US
Tim Ebner · Menomonee Falls, US
Jesse Marcelle · Muskego, US

Key dates

Filing date	Sep 1, 2005
Grant date	May 11, 2010
Priority date	—
Expiry date	Aug 29, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T292/96
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A deadbolt mechanism including a lock out mechanism that functions to disable the operation of the deadbolt from at least one side of the deadbolt mechanism. The deadbolt mechanism includes a deadbolt, key cylinder, housing, turn knob and a shaft that connects the key cylinder and turn knob. To place the deadbolt mechanism in lock out mode, a release mechanism is actuated and the turn knob is pulled outward away from the door. By pulling the knob outward, the shaft engages a portion of the housing which prevents rotation of the shaft and thereby prevents movement of the deadbolt from the lock-out position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.