Combination-changeable complex lock
US7458239B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Aug 17, 2007 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Aug 17, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7401
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A combination-changeable complex lock includes a movable plate, a combination lock, and a sliding member. The combination lock is composed of two notched rotating discs, two gearwheels, and a combination-alteration control device. The combination-alteration control device is rotatable to separate the gearwheels from the notched rotating discs for allowing change of the set combination. The sliding member is controllable by the combination lock to engage or disengage the peripheral notches of notched rotating discs. When the combination lock is locked, the sliding member is disengaged from the notched rotating discs and forced against the movable plate to bias the movable plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.