Patent US3814628A successfully refreshed from Google Patents.
US3814628A
Expired / Lapsed
US
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Battery paste pumping and metering system
Assignee: Gates Rubber Co
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Filing: 1972-04-17
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Granted: 1974-06-04
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Expires: 1992-04-17
Abstract
Abstract A CLOSED LOOP PUMPING AND METERING SYSTEM FOR PASTING BATTERY ELECTRODE PLATES WITH A VISCOUS, THIXOTROPIC BATTERY PASTE IS DISCLOSED. THE CLOSED LOOP INCLUDES AN INLET FOR CHARGING MAKE-UP PASTE, A FIRST PUMP FOR AGITATING AND CIRCULATING THE PASTE AROUND THE LOOP, AND A METERING PUMP DOWNSTREAM OF THE CIRCULATING PUMP FOR INITIATING FLOW OF A PREDETERMINED VOLUMETERIC FLOW RATE OF PASTE THROUGH A DISCHARGE MEANS ONTO A BATTERY GRID SUBSTRATE, OR THE LIKE. THE PASTE CONSISTENCY AND WORKING LIFE ARE ENHANCED BY THE MIXING EFFECT PROVIDED BY REPEATED PASSES THROUGH THE CIRCULATING AND METERING PUMPS.
Inventors
- 👤 T Larkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:23
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/14; H01M4/16; H01M4/20; B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/0403; B05B9/0406; B05C; B05C5/00; B05C5/02; F; F04; F04C; F04C13/00; F04C13/001; F04C13/002; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |