Electric door lock
US8490445B2 · kind B2 · utility
51Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2010 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jun 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7107
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door lock includes a first driven wheel connected drivenly to a motor and having two resilient driving elements, and a second driven wheel connected drivenly to a rotary handle and the first driven wheel. The second driven wheel has a driven element disposed between and driven by the driving elements so that the second driven wheel moves to a first or second position to place a latch bolt in a latching or unlatching position. When the latch bolt is jammed, the second driven wheel is inoperative. However, as the driving elements are resilient, the first driven wheel can continue its rotation without being obstructed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.