Lock device
US6530248B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2001 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Aug 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/498
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention relates to a lock assembly to be used in conjunction with two or more padlock assemblies. The lock assembly comprises a main body 1, a main shackle 2, and a locking portion 7. When all subsidiary padlocks 5, 6 are locked into the apertures 3, 4 the main shackle 2 cannot be opened. The removal of either subsidiary shackle allows the locking portion 7 to circumvent the second subsidiary shackle and the main shackle 2 may be opened. This allows two persons to independently use the padlock without sharing keys or other secure information. Moreover the lock assembly may be used with any secure fitting designed for use with a traditional padlock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.