US3095121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical feed control system
Assignee: Henkel Corp
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Filing: 1960-10-20
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Granted: 1963-06-25
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Expires: 1980-10-20
Abstract
No abstract record available.
Inventors
- 👤 Douty Alfred
- 👤 Dwight E Buczkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:49
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/4418; A47L15/4427; B; B01; B01J; B01J4/00; B01J4/008; C; C23; C23C; C23C22/00; C23C22/73; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2509
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A CHEMICAL FEED CONTROL SYSTEM COMPRISING A RESERVOIR CONTAINING A RELATIVELY DILUTE CHEMICAL TREATING SOLUTION, A SUPPLY TANK CONTAINING A RELATIVELY CONCENTRATED SOLUTION OF SAID CHEMICAL, AN ASPIRATOR, A SUCTION CONDUIT CONNECTING THE ASPIRATOR WITH THE CONCENTRATED SOLUTION IN SAID SUPPLY TANK, A CONDUIT ADAPTED TO DELIVER DILUTE SOLUTION FROM THE RESERVIOR TO THE ASPIRATOR, A PUMP FOR PLACING THE DILUTE SOLUTION WHICH IS DELIVERED TO THE ASPIRATOR UNDER PRESSURE ABOVE ATMOSPHERIC PRESSURE, SAID ASPIRATOR BEING ACTUATED BY SAID DILUTE SOLUTION UNDER PRESSURE TO EFFECT SAID WITHDRAWAL OF CONCENTRATED SOLUTION THE CONCENTRATED AND THE DILUTE SOLUTIONS BEING MIXED BY THE ASPIRATOR, A SECOND CONDUIT INDEPENDENT OF THE CONDUIT WHICH DELIVERS DILUTE SOLUTION TO THE ASPIRATOR, SAID SECOND CONDUIT DELIVERING SAID MIXTURE TO THE DULITE SOLUTION RESERVIOR, THE DISCHARGE OF SAID MIXTURE BEING OPEN TO THE ATMOSPHERE AT A POINT ABOVE THE LEVEL OF THE SOLUTIONS IN THE RESERVOIR AND IN THE TANK, A VALVE CONTROLLING THE FLOW OF DILUTE SOLUTION TO THE ASPIRATOR, AND MEANS INTERMITTENTLY OPENING SAID VALVE AS DESIRED TO EFFECT WITHDRAWAL OF CONCENTRATED SOLUTION, MIXTURE THEREOF WITH DILUTE SOLUTION AND DELIVERY OF THE MIXTURE OF SAID RESER-
Claim 2
Dependent Claim
190 words
A CHEMICAL FEED CONTROL SYSTEM COMPRISING A RESERVOIR CONTAINING A RELATIVELY DILUTE CHEMICAL TREATING SOLUTION, A SUPPLY TANK CONTAINING A RELATIVELY CONCENTRATED SOLUTION OF SAID CHEMICAL, AN ASPIRATOR, A SUCTION CONDUIT CONNECTING THE ASPIRATOR WITH THE CONCENTRATED SOLUTION IN SAID SUPPLY TANK, A CONDUIT ADAPTED TO DELIVER DILUTE SOLUTION FROM THE RESERVIOR TO THE ASPIRATOR, A PUMP FOR PLACING THE DILUTE SOLUTION WHICH IS DELIVERED TO THE ASPIRATOR UNDER PRESSURE ABOVE ATMOSPHERIC PRESSURE, SAID ASPIRATOR BEING ACTUATED BY SAID DILUTE SOLUTION UNDER PRESSURE TO EFFECT SAID WITHDRAWAL OF CONCENTRATED SOLUTION THE CONCENTRATED AND THE DILUTE SOLUTIONS BEING MIXED BY THE ASPIRATOR, A SECOND CONDUIT INDEPENDENT OF THE CONDUIT WHICH DELIVERS DILUTE SOLUTION TO THE ASPIRATOR, SAID SECOND CONDUIT DELIVERING SAID MIXTURE TO THE DULITE SOLUTION RESERVIOR, THE DISCHARGE OF SAID MIXTURE BEING OPEN TO THE ATMOSPHERE AT A POINT ABOVE THE LEVEL OF THE SOLUTIONS IN THE RESERVOIR AND IN THE TANK, A VALVE CONTROLLING THE FLOW OF DILUTE SOLUTION TO THE ASPIRATOR, AND MEANS INTERMITTENTLY OPENING SAID VALVE AS DESIRED TO EFFECT WITHDRAWAL OF CONCENTRATED SOLUTION, MIXTURE THEREOF WITH DILUTE SOLUTION AND DELIVERY OF THE MIXTURE OF SAID RESER-
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |