Combination lock with a device for changing the combination
US5924313A · kind A · utility
32Cited by
13References
13Claims
0Family size
Inventor
Key dates
| Filing date | Sep 9, 1998 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Sep 9, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7305
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lock with a combination selecting mechanism for releasing is constructed by a U-shaped shackle and a locking bar. A combination selecting mechanism is provided in the locking bar. The lock can be released by selecting the correct number series on the tumblers. A combination change control mechanism is further provided in the combination selecting mechanism, so that the combination can not be reset when the combination change control mechanism is in effect, thereby it is possible to avoid an undesired combination change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.