Dual mechanism lock
US6598434B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 9, 2001 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Jan 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7305
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dual mechanism lock comprises a combination lock structure is disposed; a key lock having an internal cylinder and an external cylinder, and a fixing plate is embedded into a fixing groove on the external cylinder; the combination lock structure having a plurality of combination wheels pivotally coupled to the lock core rod connecting to the external cylinder; a spring is disposed between the other end of the lock core rod and the lock body; the internal cylinder is protruded from the panel and the panel is coupled to a knob; a sliding member is corresponsive to coupling and detachment of the inner groove of the external cylinder, and the lock core rod and the combination wheels control the coupling and detachment of the fixing plate and the external cylinder, or the key via the internal cylinder generates the movement for the coupling and detachment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.