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US3079944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing device
Assignee: Lever Brothers Co
•
Filing: 1958-07-03
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Granted: 1963-03-05
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Expires: 1978-07-03
Abstract
No abstract record available.
Inventors
- 👤 James H Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:48
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/02; D06F39/022; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7498; Y10T137/8593; Y10T137/86187; Y10T137/86196; Y10T137/86236; Y10T137/8626
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
A LIQUID DISPENSER COMPRISING A FIRST SUMP FOR RECEIVING A LIQUID, MEANS TO MAINTAIN A SUBSTANTIALLY CONSTANT LEVEL OF THE LIQUID IN SAID FIRST SUMP, A SECOND SUMP, A PASSAGE FOR LIQUID CONNECTING SAID FIRST SUMP TO SAID SECOND SUMP FOR FLOW OF SAID LIQUID FROM SAID FIRST SUMP TO SAID SECOND SUMP TO FILL SAID SECOND SUMP TO THE SAME LEVEL AS THE LIQUID IN SAID FIRST SUMP, A NORMALLY OPEN VALVE IN SAID PASSAGE, ELECTRICALLY ENERGIZED MEANS FOR CLOSING SAID VALVE, A TUBE EXTENDING DOWNWARDLY INTO SAID SECOND SUMP AND HAVING AN OPEN END TO BE IMMERSED IN THE LIQUID IN SAID SECOND SUMP, MEANS FOR ADJUSTING THE OPEN END OF SAID TUBE UP AND DOWN IN SAID SECOND SUMP, MEANS FOR WITHDRAWING LIQUID FROM SAID SECOND SUMP THROUGH SAID OPEN END OF AND UPWARDLY THROUGH SAID TUBE UNTIL THE LIQUID LEVEL IN SAID SECOND SUMP IS LOWERED SUFFICIENTLY TO UNCOVER SAID OPENING IN SAID TUBE AND TERMINATE WITHDRAWAL OF LIQUID FROM SAID SECOND SUMP AND MEANS FOR ENERGIZING SAID ELECTRICALLY ENERGIZED MEANS FOR CLOSING SAID VALVE TO PREVENT INTRODUCTION OF LIQUID INTO SAID SECOND SUMP WHILE LIQUID IS BEING WITHDRAWN THEREFROM.
Claim 2
Dependent Claim
194 words
A LIQUID DISPENSER COMPRISING A FIRST SUMP FOR RECEIVING A LIQUID, MEANS TO MAINTAIN A SUBSTANTIALLY CONSTANT LEVEL OF THE LIQUID IN SAID FIRST SUMP, A SECOND SUMP, A PASSAGE FOR LIQUID CONNECTING SAID FIRST SUMP TO SAID SECOND SUMP FOR FLOW OF SAID LIQUID FROM SAID FIRST SUMP TO SAID SECOND SUMP TO FILL SAID SECOND SUMP TO THE SAME LEVEL AS THE LIQUID IN SAID FIRST SUMP, A NORMALLY OPEN VALVE IN SAID PASSAGE, ELECTRICALLY ENERGIZED MEANS FOR CLOSING SAID VALVE, A TUBE EXTENDING DOWNWARDLY INTO SAID SECOND SUMP AND HAVING AN OPEN END TO BE IMMERSED IN THE LIQUID IN SAID SECOND SUMP, MEANS FOR ADJUSTING THE OPEN END OF SAID TUBE UP AND DOWN IN SAID SECOND SUMP, MEANS FOR WITHDRAWING LIQUID FROM SAID SECOND SUMP THROUGH SAID OPEN END OF AND UPWARDLY THROUGH SAID TUBE UNTIL THE LIQUID LEVEL IN SAID SECOND SUMP IS LOWERED SUFFICIENTLY TO UNCOVER SAID OPENING IN SAID TUBE AND TERMINATE WITHDRAWAL OF LIQUID FROM SAID SECOND SUMP AND MEANS FOR ENERGIZING SAID ELECTRICALLY ENERGIZED MEANS FOR CLOSING SAID VALVE TO PREVENT INTRODUCTION OF LIQUID INTO SAID SECOND SUMP WHILE LIQUID IS BEING WITHDRAWN THEREFROM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |