Hydraulic runaway control valve
US3971404A · kind A · utility
5Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1974 |
| Grant date | Jul 27, 1976 |
| Priority date | — |
| Expiry date | Jun 17, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7731
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Apparatus for controlling the flow of fluid in pressurized lines; and for closing a valve and stopping said flow whenever downstream pressure drops below a predetermined value, is disclosed. The apparatus comprises a manually-operated valve for starting fluid flow and a spring-biased sequencing valve for stopping fluid flow, with fluid channels connecting the manual valve with the sequencing valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.