Lock with a resettable combination
US5934120A · kind A · utility
Inventor
Key dates
| Filing date | Dec 30, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Dec 30, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7328
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lock with a resettable combination includes a locating head having a tube extending therefrom and a locking head having a rod extending therefrom and receivably engaged with the tube. A spring, a set of selectors and a sequence reset device are respectively and sequentially mounted around the tube of the locating head. Each of said plurality of selectors having a rotatable ring, a locating block, a drive block and a torsion spring combined for selection. The sequence reset device includes an annular member and a toggle device for driving the set of selectors. The annular member defines a pair of opposed holes in a periphery thereof. The toggle device is pivotally engaged with the annular member and configured as a semi-circular collar. The semi-circular collar has a pair of cam gears respectively formed on two distal ends defined therein. Each of the pair of cam gears extends through a corresponding one of the pair of opposed holes of the annular member and defines a large-diameter end and a small-diameter end. The large-diameter end and the small-diameter end selectively abut the respective selector when the toggle device is pivoted with respect to the annular member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.