Time programmable unlocking lock
US7464570B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2008 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Feb 26, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7102
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A time programmable unlocking lock includes a tenon structure assembly, wherein the tenon structure assembly includes a front and a rear retaining plate, the front retaining plate connects to an inner side of a door and has a round hole for a tenon of the rear retaining plate to go through, the rear retaining plate has a slot disposed thereon and cooperates with a flange to slidingly connect to the inner side of the door, a front end of the rear retaining plate connects with the tenon, a rear end of the rear retaining plate connects with a metal plate, and the front retaining plate connects with the rear retaining plate through a compression spring. A timer device is disposed at the inner side of the door and controls the circuit operation, the timer setting and the counter setting of the time programmable unlocking lock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.