Patent US3131710A successfully refreshed from Google Patents.
US3131710A
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US
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Compound mixing system
Assignee: AT&T Inc
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Filing: 1962-02-09
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Granted: 1964-05-05
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Expires: 1982-02-09
Abstract
No abstract record available.
Inventors
- 👤 Ludwig Alfons
- 👤 Bradner N Monell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:41
CPC Classifications
B; B21; B21C; B21C9/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2534; Y10T137/4673; Y10T137/7287; Y10T137/7306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A FLUID MIXING SYSTEM INCLUDING: AT LEAST TWO SUPPLY TANKS, EACH REQUIRING A DIFFERENT CONCENTRATION OF FLUID, A CONCENTRATE TANK CONTAINING A CONCENTRATED FLUID, A DILUTION TANK, MEANS FOR SUPPLYING CONCENTRATED FLUID FROM THE CONCENTRATE TANK TO THE DILUTION TANK, ONE OR MORE FLUID SUPPLY MEANS FOR SUPPLYING A DILUTING MEDIUM TO THE DILUTION TANK, LEVEL CONTROL MEANS INDIVIDUAL TO EACH SUPPLY TANK, FIRST MEANS RESPONSIVE TO THE LEVEL CONTROL MEANS IN EACH SUPPLY TANK FOR INITIATING A FLOW OF FLUID FROM THE CONCENTRATE TANK TO THE DILUTION TANK WHEN THE FLUID IN A SUPPLY TANK DROPS TO A PREDETERMINED LEVEL,
Claim 2
Dependent Claim
101 words
A FLUID MIXING SYSTEM INCLUDING: AT LEAST TWO SUPPLY TANKS, EACH REQUIRING A DIFFERENT CONCENTRATION OF FLUID, A CONCENTRATE TANK CONTAINING A CONCENTRATED FLUID, A DILUTION TANK, MEANS FOR SUPPLYING CONCENTRATED FLUID FROM THE CONCENTRATE TANK TO THE DILUTION TANK, ONE OR MORE FLUID SUPPLY MEANS FOR SUPPLYING A DILUTING MEDIUM TO THE DILUTION TANK, LEVEL CONTROL MEANS INDIVIDUAL TO EACH SUPPLY TANK, FIRST MEANS RESPONSIVE TO THE LEVEL CONTROL MEANS IN EACH SUPPLY TANK FOR INITIATING A FLOW OF FLUID FROM THE CONCENTRATE TANK TO THE DILUTION TANK WHEN THE FLUID IN A SUPPLY TANK DROPS TO A PREDETERMINED LEVEL,
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |