Pressure retaining sleeve
US9099231B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2007 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | May 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic core (106) is adapted for a solenoid valve (100). The magnetic core (106) includes a base (113), a stem (112), and an inner cavity (115). The inner cavity (115) is formed in a portion of the base (113) and in a portion of the stem (112). The inner cavity (115) defines a thin wall (108) of the stem (112). The magnetic core (106) further comprises a non-magnetic pressure retaining sleeve (420). The non-magnetic pressure retaining sleeve (420) is arranged in such a way that either the non-magnetic pressure retaining sleeve surrounds at least a portion of the thin wall of the stem or that at least a portion of the thin wall portion surrounds the non-magnetic pressure retaining sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.