Multiple point door locking system
US9222286B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2009 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Mar 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1016
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A multi-function door lock system, comprising in combination, a frame having opposite sides, and installable on a door openable between an interior space and an exterior space, a deadbolt and a door latch carried by the frame to move between retracted and extended positions, a first rotary control located at one level on the frame to control deadbolt movement between extended and retracted positions via primary cam mechanism, a second rotary control at another level on the frame to control latch movement between extended and retracted positions, via secondary cam mechanism, means operatively connected between said secondary cam mechanism and the primary cam mechanism to effect deadbolt movement as aforesaid, in response to operation of the second rotary control, as effected via rotary input to the second rotary control from only one side of the frame. Means is also provided to be responsive to reverse rotation of the first rotary control to effect latch retraction independently of deadbolt displacement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.