Combination lock
US6386005B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Apr 24, 2001 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Apr 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7373
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A combination lock has a plug with a tube extending from the plug. Multiple combination ring assemblies are disposed around the tube, and each of the combination ring assemblies include a combination ring, a positioning ring, and an abutting ring. A bar is inserted with an end inside the tube and an opposed end mounted with a nut extending outside the tube. A cap having a chamber inside is received in a cover, and the nut is received in the chamber. When changing a combination number of the combination lock, a tool is used to turn the cap to separate the combination ring and the positioning ring thus allows the combination number to be changed, and when the changing is completed, the cap is turned to a original position and the combination ring and the positioning ring engages together automatically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.