Control device for a valve with a spiral spring
US5213183A · kind A · utility
5Cited by
4References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1991 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Nov 13, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K21/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Control device for a valve provided with a spiral spring whose release brings about rotation of the drive shaft of the stopper of the valve. Rotation of the auxiliary shaft of the control device is dependent upon a shock absorbing device, wherein rotation of the auxiliary shaft drives a rotating piston arranged in a sealed housing containing a viscous fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.