Variable resistance door stay apparatus
US10196844B2 · kind B2 · utility
0Cited by
27References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2015 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Aug 3, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05C19/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A variable resistance door stay apparatus is disclosed. The door stay is provided with an adjustable tightening nut that slides inside a longitudinal slot in a ridged member. A method is disclosed for proving variable resistance to rotational of a door.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.