Two-piece solenoid valve
US6050543A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1999 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Mar 1, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/0651
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A solenoid valve comprises a conduit having first and second ports and a valve seat in the conduit between the ports. A ferro-magnetic valve member is positioned in the conduit between one of the ports in the valve seat which valve member is movable between a closed position wherein the valve member seats against the valve seat and isolates the two ports and an open position wherein the valve member is spaced from the valve seat and allows fluid flow between the ports. The valve also includes a multi-turn coil having an axial passage therethrough which passage is dimensioned to slidably receive the conduit. The valve member is normally biased to one of its two positions in the conduit. However, when the conduit is received in the coil passage and the coil is energized, the electromagnetic field produced by the coil moves the valve member to its other position thereby either opening or closing the valve depending upon the initial state of the valve member. The valve conduit and its contents are separable from the solenoid coil so that the conduit and its contents can be separately handled and sterilized and can be installed in various apparatus equipped with similar solenoid coils f…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.