US3905689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct operating valve
Assignee: Individual
•
Filing: 1974-02-28
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Granted: 1975-09-16
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Expires: 1994-02-28
Abstract
Abstract Direct operating solenoid valve has large port area and high lift by employing resilient edge supported seal disc so that as the magnetic armature is moved toward its pole piece by magnetic force, at the first part of the stroke the resilient poppet seal disc is deflected and at the last part of the stroke it is pulled off its port seat. Thus, high lift is achieved with large port diameter.
Inventors
- 👤 Gerald D Mylander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:17
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0672; F16K31/0651
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
356 words
A directly operating solenoid valve comprising: a valve having a body, an armature movably mounted within said body from a first position to a second position, a solenoid coil around said body for magnetically urging said armature from its first position toward its second position, a seat within said body having an orifice therethrough for the passage of fluid, the improvement comprising: a valve disc of resilient material within said body for movement with respect to said seat, said valve disc having a sealing surface for sealing with respect to said seat when said armature is in its first position, said valve disc being substantially circular, a cap having an inwardly directed circular cap flange having a conically beveled inner face directed toward said disc to permit deflection of said resilient valve disc, said cap being secured on said armature so that, as said armature moves from its first position where said disc is on said seat toward its second position, said cap urges the edges of said disc toward said second position, said armature having a head thereon directed toward said seat, a boss on said head facing said seat, said boss being positioned inwardly from said cap flange so that the center of said valve disc normally lies against said boss and said valve disc is unsupported on the side opposite said cap flange so that, as said armature moves, said edges of said valve disc toward its second position and fluid pressure toward said seat holds the center of said resilient valve disc in said seat so that the center of said disc leaves said boss and the outer edges of said valve disc turn into the space beside said boss to leave free said edges of said valve disc with resilient bending of said valve disc being limited by said conically beveled inner face of said inwardly directed circular cap flange and so that, upon separation of said valve disc from its seat, said valve disc resiliently returns to its undeflected position when said armature is in the second position to maximize flow area between said valve disc and said valve seat.
Claim 2
Dependent Claim
356 words
A directly operating solenoid valve comprising: a valve having a body, an armature movably mounted within said body from a first position to a second position, a solenoid coil around said body for magnetically urging said armature from its first position toward its second position, a seat within said body having an orifice therethrough for the passage of fluid, the improvement comprising: a valve disc of resilient material within said body for movement with respect to said seat, said valve disc having a sealing surface for sealing with respect to said seat when said armature is in its first position, said valve disc being substantially circular, a cap having an inwardly directed circular cap flange having a conically beveled inner face directed toward said disc to permit deflection of said resilient valve disc, said cap being secured on said armature so that, as said armature moves from its first position where said disc is on said seat toward its second position, said cap urges the edges of said disc toward said second position, said armature having a head thereon directed toward said seat, a boss on said head facing said seat, said boss being positioned inwardly from said cap flange so that the center of said valve disc normally lies against said boss and said valve disc is unsupported on the side opposite said cap flange so that, as said armature moves, said edges of said valve disc toward its second position and fluid pressure toward said seat holds the center of said resilient valve disc in said seat so that the center of said disc leaves said boss and the outer edges of said valve disc turn into the space beside said boss to leave free said edges of said valve disc with resilient bending of said valve disc being limited by said conically beveled inner face of said inwardly directed circular cap flange and so that, upon separation of said valve disc from its seat, said valve disc resiliently returns to its undeflected position when said armature is in the second position to maximize flow area between said valve disc and said valve seat.
Claim 3
Dependent Claim
26 words
The direct operating solenoid valve of claim 1 wherein said boss has a roughened surface to prevent suction adhesion of said valve disc on said boss.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |