Door lock and alarm
US7971459B2 · kind B2 · utility
7Cited by
17References
15Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Dec 22, 2006 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Dec 22, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/8649
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door lock and alarm in the form of a case which is attached to the exterior door handle by a clamping mechanism that stops movement of the case with respect to the door in all degrees of freedom, but allows the handle to turn inside the case. The case is provided with a lockable cover so as to permit an authorized user to open the cover and operate the door handle. An alarm device can be provided within the case to indicate tampering with the door lock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.