Vapor vent control valve
US4679580A · kind A · utility
11Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1986 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Jun 23, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0874
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vapor vent control valve arrangement for a fluid tank is disclosed. The valve arrangement includes a solenoid operated valve with a normally-open parallel switch assembly and a normally-closed switch in an electrical circuit to activate the solenoid valve. An impact switch may also be provided as a safety precaution in the series circuit. The valve assembly is spring-biased to provide an over-pressure check valve function and also includes a back-pressure relief valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.