Patent US3336767A successfully refreshed from Google Patents.
US3336767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic chemical dispensing system
Assignee: Ael Products Inc
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Filing: 1966-01-11
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Granted: 1967-08-22
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Expires: 1986-01-11
Abstract
No abstract record available.
Inventors
- 👤 Franklin H Mackenzie
- 👤 Walter W Ludman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:17
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/02; D06F39/022; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109; Y10T137/4238; Y10T137/4245; Y10T137/4259; Y10T137/7287; Y10T137/7306; Y10T137/8593; Y10T137/86187; Y10T137/86389; Y10T137/86445
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A LAUNDRY SYSTEM COMPRISING A PLURALITY OF SUPPLY TANKS, A MEASURING TANK, VALVE CONDUIT MEANS PROVIDING COMMUNICATION BETWEEN THE SUPPLY TANKS AND THE MEASURING TANK, SELECTIVELY OPERABLE MEANS FOR CAUSING LIQUID TO FLOW FROM SAID SUPPLY TANKS TO SAID MEASURING TANK, SELECTIVELY OPERABLE MEANS FOR DISCHARGING THE LIQUID FROM SAID TANK, SELECTIVELY OPERABLE MEANS FOR DETECTING THE LEVEL OF THE LIQUID RECEIVED BY SAID MEASURING TANK FROM SAID SUPPLY TANK, MEANS RESPONSIVE TO SAID LEVEL DETECTING MEANS FOR RENDERING SAID FIRST-MENTIONED SELECTIVELY OPERABLE MEANS INOPERATIVE AND FOR INITIATING OPERATION OF SAID MEANS FOR DISCHARGING THE LIQUID FROM SAID MEASURING TANK, AND MEANS FOR FLUSHING SAID MEASURING TANK IN RESPONSE TO THE DISCHARGE OF A MEASURED QUANTITY OF LIQUID, SAID FLUSHING MEANS BEING OPERABLE IN RESPONSE TO SAID RESPONSIVE MEANS.
Claim 2
Dependent Claim
130 words
IN A LAUNDRY SYSTEM COMPRISING A PLURALITY OF SUPPLY TANKS, A MEASURING TANK, VALVE CONDUIT MEANS PROVIDING COMMUNICATION BETWEEN THE SUPPLY TANKS AND THE MEASURING TANK, SELECTIVELY OPERABLE MEANS FOR CAUSING LIQUID TO FLOW FROM SAID SUPPLY TANKS TO SAID MEASURING TANK, SELECTIVELY OPERABLE MEANS FOR DISCHARGING THE LIQUID FROM SAID TANK, SELECTIVELY OPERABLE MEANS FOR DETECTING THE LEVEL OF THE LIQUID RECEIVED BY SAID MEASURING TANK FROM SAID SUPPLY TANK, MEANS RESPONSIVE TO SAID LEVEL DETECTING MEANS FOR RENDERING SAID FIRST-MENTIONED SELECTIVELY OPERABLE MEANS INOPERATIVE AND FOR INITIATING OPERATION OF SAID MEANS FOR DISCHARGING THE LIQUID FROM SAID MEASURING TANK, AND MEANS FOR FLUSHING SAID MEASURING TANK IN RESPONSE TO THE DISCHARGE OF A MEASURED QUANTITY OF LIQUID, SAID FLUSHING MEANS BEING OPERABLE IN RESPONSE TO SAID RESPONSIVE MEANS.
References Cited (Backward Citations)
CA626070A
Cited
US1954261A
Cited
US2083965A
Cited
US2540431A
Cited
US2641992A
Cited
US2647384A
Cited
US3091252A
Cited
US3160317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |