Overcenter door control device
US4141104A · kind A · utility
9Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1978 |
| Grant date | Feb 27, 1979 |
| Priority date | — |
| Expiry date | Feb 27, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/50
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An overcenter door control device is disclosed for resiliently holding a door in a predetermined open position after being moved past dead center in one direction, and resiliently holding the door closed after being moved past dead center in the opposite direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.