US3235136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding devices for liquids
Assignee: WATER SERVICE LAB Inc
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Filing: 1964-02-20
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Granted: 1966-02-15
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Expires: 1984-02-20
Abstract
No abstract record available.
Inventors
- 👤 James B Fullman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:26
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A FEEDING DEVICE FOR LIQUID COMPRISING A DIAPHRAGM MADE OF SOFT AND FLEXIBLE MATERIAL, TWO INTERMEDIATE PLATES EACH HAVING TWO OPPOSITE FLAT FACES, ONE OF SAID FACES BEING ADJACENT TO ONE SIDE OF SAID DIAPHRAGM AND HAVING A CAVITY THEREIN AND THE OTHER OF SAID FACES HAVING A SYSTEM OF OPEN INTERCONNECTING CHANNELS THEREIN FORMING AN OPEN UNDERDRAIN, EACH OF SAID INTERMEDIATE PLATES ALSO HAVING A MULTIPLICITY OF PORTS SCATTERED OVER THE SURFACE OF ITS SAID CAVITY AND COMMUNICATING WITH ITS SAID UNDERDRAIN, A PAIR OF END PLATES EACH HAVING A FLAT SURFACE JUXTAPOSED TO THE FLAT FACE OF ONE OF SAID INTERMEDIATE PLATES HAVING SAID UNDERDRAIN THEREIN, AND THEREBY ENCLOSING SAID UNDERDRAIN, A PASSAGE IN EACH OF SAID END PLATES TERMINATING IN ITS SAID SURFACE AND COMMUNICATING WITH ONE OF SAID UNDERDRAINS, A PAIR OF THREE-WAY SOLENOID VALVES, EACH HAVING A NORMALLY OPEN PORT ADAPTED TO BE CLOSED ON ENERGIZATION OF THE SOLENOID VALVE, A NORMALLY CLOSED PORT ADAPTED TO BE OPENED ON ENERGIZATION OF THE SOLENOID VALVE AND A COMMON PORT IN COMMUNICATION WITH BOTH SAID NORMALLY OPEN PORT AND SAID NORMALLY CLOSED PORT, EACH OF SAID SOLENOID VALVES HAVING ITS COMMON PORT CONNECTED WITH THE SAID PASSAGE IN ONE OF SAID
Claim 2
Dependent Claim
204 words
A FEEDING DEVICE FOR LIQUID COMPRISING A DIAPHRAGM MADE OF SOFT AND FLEXIBLE MATERIAL, TWO INTERMEDIATE PLATES EACH HAVING TWO OPPOSITE FLAT FACES, ONE OF SAID FACES BEING ADJACENT TO ONE SIDE OF SAID DIAPHRAGM AND HAVING A CAVITY THEREIN AND THE OTHER OF SAID FACES HAVING A SYSTEM OF OPEN INTERCONNECTING CHANNELS THEREIN FORMING AN OPEN UNDERDRAIN, EACH OF SAID INTERMEDIATE PLATES ALSO HAVING A MULTIPLICITY OF PORTS SCATTERED OVER THE SURFACE OF ITS SAID CAVITY AND COMMUNICATING WITH ITS SAID UNDERDRAIN, A PAIR OF END PLATES EACH HAVING A FLAT SURFACE JUXTAPOSED TO THE FLAT FACE OF ONE OF SAID INTERMEDIATE PLATES HAVING SAID UNDERDRAIN THEREIN, AND THEREBY ENCLOSING SAID UNDERDRAIN, A PASSAGE IN EACH OF SAID END PLATES TERMINATING IN ITS SAID SURFACE AND COMMUNICATING WITH ONE OF SAID UNDERDRAINS, A PAIR OF THREE-WAY SOLENOID VALVES, EACH HAVING A NORMALLY OPEN PORT ADAPTED TO BE CLOSED ON ENERGIZATION OF THE SOLENOID VALVE, A NORMALLY CLOSED PORT ADAPTED TO BE OPENED ON ENERGIZATION OF THE SOLENOID VALVE AND A COMMON PORT IN COMMUNICATION WITH BOTH SAID NORMALLY OPEN PORT AND SAID NORMALLY CLOSED PORT, EACH OF SAID SOLENOID VALVES HAVING ITS COMMON PORT CONNECTED WITH THE SAID PASSAGE IN ONE OF SAID
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |