Cartridge solenoid valve with manual override
US4544128A · kind A · utility
21Cited by
18References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1983 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Feb 24, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/408
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve structure (10) wherein a main valve (11) is controlled by a pilot valve (15) which is normally selectively positioned by the coaction of a solenoid coil (17) and plunger (16). A manual override structure (22) is provided for selectively permitting normal control of the pilot valve by the solenoid, or causing a fast repositioning of the plunger against the action of the normal biasing spring 50 thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.