Safety lock for lever-type door handles
US7416230B2 · kind B2 · utility
9Cited by
14References
21Claims
0Family size
Inventors
Key dates
| Filing date | Oct 6, 2003 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Jun 26, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/57
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An add-on safety lock that blocks lever rotation by bracing the lever against a fulcrum point at the handle shaft and nearby door structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.