Removable cylindrical lock core
US6578396B2 · kind B2 · utility
26Cited by
17References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2002 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | May 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7661
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shell and core interchangeable lock assembly for use in a shell housing. The core includes a rotatable pin plug and the shell includes a substantially cylindrical body with a pin chest therein. A mechanism which captures the shell and core within the shell housing includes an integral retainer ring and lug which is attached to the core. The mechanism allows rapid insertion and removal of the shell and core by the use of a correctly bitted control key. The mechanism additionally has a sub-mechanism for preventing its operation by accident or by tampering without the appropriate control key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.