Removable core lock
US4866964A · kind A · utility
21Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Dec 28, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/765
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A removable core cam lock of the type having a key operated core within a shell, is provided with a spring clip controlled by a core removal key which is longer than an operating key. The spring clip fits in a groove in the core and extends through a slot in the shell so that when the core removal key is put into the lock it operates the lock and on rotation of the lock it lifts the spring clip to allow core removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.