US3983909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-way solenoid valve
Assignee: DBA SA
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Filing: 1976-02-18
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Granted: 1976-10-05
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Expires: 1996-02-18
Abstract
Abstract A three way solenoid valve comprising a housing which contains a cylindrical cavity around which an electric coil is disposed. Two seats extend perpendicularly relative to the cavity axis and are arranged opposite one another. The seats communicate respectively with an inlet orifice and an outlet orifice. A work orifice communicates with the cavity. A core of ferromagnetic material is mounted with axial clearance in the cavity and two valve closure members are mounted in the core and capable of cooperating with the seats in accordance with the reciprocations of the core. A return spring urges the core with a position in which one of the valve seats is closed.
Inventors
- 👤 Etienne Anglade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:23
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0603; F16K31/0624; F16K31/0627; F16K31/0631; B; B60; B60T; B60T8/00; B60T8/32; B60T8/34; B60T8/36; B60T8/3615; B60T8/363; B60T8/3635; F16K11/00; F16K11/02; F16K11/04; F16K11/056; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/86879; Y10T137/86895
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
265 words
A three-way solenoid valve comprising a housing defining a cavity therewithin, an electric coil disposed around said cavity, a pair of axially spaced valve seats carried by said housing within said cavity, said housing including an inlet orifice communicating with one of said valve seats, an outlet orifice communicating with the other of said valve seats, a work orifice communicating with said cavity, a core of ferromagnetic material slidably mounted within said cavity, said core defining a bore therewithin, a ball valve member carried by said core in said bore, said ball valve member cooperating with said valve seats to control fluid communication between said orifices, means mounting said ball valve member in said bore, said mounting means including a groove in the wal of said bore, a pair of axially spaced washers, the peripheral edges of said washers extending into said groove, the diameter of said groove being greater than the diameter of said washers whereby said groove permits limited radial movement of the washers with respect to said bore, the walls of the groove cooperating with the sides of the washers to restrain axial movement of the washers with respect to the bore, said ball valve member being carried by said washers, whereby the limited radial movement of said washers carrying said ball valve member permits the latter to center itself on said seats when urged thereagainst, the resilient means yieldably urging said ball valve member into engagement with one of said seats, said ball valve member moving with the core to engage the other of said seats upon energization of said coil.
Claim 2
Dependent Claim
265 words
A three-way solenoid valve comprising a housing defining a cavity therewithin, an electric coil disposed around said cavity, a pair of axially spaced valve seats carried by said housing within said cavity, said housing including an inlet orifice communicating with one of said valve seats, an outlet orifice communicating with the other of said valve seats, a work orifice communicating with said cavity, a core of ferromagnetic material slidably mounted within said cavity, said core defining a bore therewithin, a ball valve member carried by said core in said bore, said ball valve member cooperating with said valve seats to control fluid communication between said orifices, means mounting said ball valve member in said bore, said mounting means including a groove in the wal of said bore, a pair of axially spaced washers, the peripheral edges of said washers extending into said groove, the diameter of said groove being greater than the diameter of said washers whereby said groove permits limited radial movement of the washers with respect to said bore, the walls of the groove cooperating with the sides of the washers to restrain axial movement of the washers with respect to the bore, said ball valve member being carried by said washers, whereby the limited radial movement of said washers carrying said ball valve member permits the latter to center itself on said seats when urged thereagainst, the resilient means yieldably urging said ball valve member into engagement with one of said seats, said ball valve member moving with the core to engage the other of said seats upon energization of said coil.
References Cited (Backward Citations)
US3542333A
Cited
US3661183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |