High security lock system including cover plate
US5572890A · kind A · utility
37Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1994 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Oct 14, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7921
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A high security lock includes a lock housing, lock cylinder and a lock core. The lock housing defines a key receiving surface and a cavity for receiving the lock cylinder. A cover plate is attached to the lock housing and is located between the lock cylinder and the key receiving surface. The cover plate covers a portion of the lock core. A retaining shield is received in the cavity, which engages the cover plate and is attached within the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.