Door lock having removable outside lever handle for the purpose of changing the key cylinder
US5077994A · kind A · utility
23Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1991 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Apr 5, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/865
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A transverse retaining plate in the lever handle shank fits in a circumferential groove on the inside of the handle body and holds the lever handle on the shank. A key cylinder in the body handle has a bible which fits in a longitudinal slot in the handle. A resilient block is disposed in the slot in a position between the bible and the shank hub to hold the cylinder in position. The block also serves as a spring, biasing the retaining plate toward the groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.