Door handle safety lock
US11268295B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2019 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Apr 20, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B13/002
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door handle safety lock comprises a button, a pedestal, a limited support arm and a spring, the outer wall the button is provided with retaining ribs; the top of the pedestal is provided with inserting parts, a first mounting hole matched with the button is arranged in the inserting part, and the first chutes are arranged on the inner wall of the first mounting hole; the end of the limited support arm which is close to the pedestal is provided with an inserting slot which is matched with the inserting part, the outer wall of the limited support arm which is close to the pedestal is provided with a second mounting hole which is matched with the button, and the second chute are arranged on the inner wall of the second mounting hole; and the spring is installed between the button and the hole bottom of the second mounting hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.