Disposable core for lock cylinder
US4143531A · kind A · utility
6Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1977 |
| Grant date | Mar 13, 1979 |
| Priority date | — |
| Expiry date | Dec 28, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7638
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A disposable plug assembly to be used as a substitute for the removable core in a lock cylinder, as during the construction of a building, prior to installation of the final cores, the disposable core including a part which can be used to operate a cam or tail on the cylinder for actuating a latch bolt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.