US3245651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Appliance drain valve
Assignee: Dole Valve Co
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Filing: 1963-01-29
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Granted: 1966-04-12
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Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Howard L Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:20
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; F16K31/0658; F16K31/0665
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A SOLENOID OPERATED VALVE INCLUDING AN ARMATURE AND A VALVE SEAT AND A RESILIENT DIAPHRAGM-LIKE SCREEN FOR PROTECTING THE ARMATURE, THE IMPROVEMENT OF A CENTRAL VALVE PLUG PORTION ON SAID SCREEN RETAININGLY ENGAGED ON AND MOVABLE WITH SAID ARMATURE INTO AND OUT OF ENGAGEMENT WITH SAID VALVE SEAT, SAID SCREEN COMPRISING AN ANNULAR RING-SHAPED RESILIENT PORTION HAVING SERIES OF HOLES THEREIN AND BEING DISPOSED CIRCUMFERENTIALLY ABOUT SAID CENTRAL VALVE PLUG PORTION FOR PROTECTING SAID ARMATURE FROM CONTAMINATION, AND A SERIES OF PROJECTIONS ON SAID ANNULAR RING-SHAPED PORTION PROJECTING AWAY FROM SAID HOLES AND AWAY FROM SAID SCREEN FOR PREVENTING THE HOLES FROM BECOMING BLOCKED.
Claim 2
Dependent Claim
105 words
IN A SOLENOID OPERATED VALVE INCLUDING AN ARMATURE AND A VALVE SEAT AND A RESILIENT DIAPHRAGM-LIKE SCREEN FOR PROTECTING THE ARMATURE, THE IMPROVEMENT OF A CENTRAL VALVE PLUG PORTION ON SAID SCREEN RETAININGLY ENGAGED ON AND MOVABLE WITH SAID ARMATURE INTO AND OUT OF ENGAGEMENT WITH SAID VALVE SEAT, SAID SCREEN COMPRISING AN ANNULAR RING-SHAPED RESILIENT PORTION HAVING SERIES OF HOLES THEREIN AND BEING DISPOSED CIRCUMFERENTIALLY ABOUT SAID CENTRAL VALVE PLUG PORTION FOR PROTECTING SAID ARMATURE FROM CONTAMINATION, AND A SERIES OF PROJECTIONS ON SAID ANNULAR RING-SHAPED PORTION PROJECTING AWAY FROM SAID HOLES AND AWAY FROM SAID SCREEN FOR PREVENTING THE HOLES FROM BECOMING BLOCKED.
References Cited (Backward Citations)
US2291101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |