Patent US3281212A successfully refreshed from Google Patents.
US3281212A
Expired / Lapsed
US
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Salt dissolver apparatus
Assignee: International Salt Co Inc
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Filing: 1962-01-18
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Granted: 1966-10-25
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Expires: 1982-01-18
Abstract
No abstract record available.
Inventors
- 👤 Charles E Mackinnon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:36
CPC Classifications
B; B01; B01F; B01F21/00; B01F21/50; B01F21/503; B01F21/15; B01F21/20; Y; Y10; Y10S; Y10S422/00; Y10S422/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A "DOWNFLOW" TYPE APPARATUS FOR PREPARATION OF AQUEOUS SALT SOLUTIONS, COMPRISING A TANK HAVING A BOTTOM WALL AND A HIGHER WALL SPACED ABOVE SAID BOTTOM WALL TO DEFINE THEREBETWEEN A COMBINED SALT AND WATER STORAGE CHAMBER, A BRINE WITHDRAWAL DEVICE HAVING A BRINE INLET A BRINE WITHDRAWL THE BOTTOM WALL OF SAID TANK, A FEED SALT DELIVERY CONDUIT EXTENDING DOWNWARDLY FROM THE BOTTOM OF SAID HOPPER WALL TERMINATING IN SPACED RELATION ABOVE SAID BOTTOM WALL OF THE TANK, A LIQUID FEED DEVICE DISCHARGING INTO SAID FEED SALT DELIVERY CONDUIT, AND AUTOMATIC CONTROL MEANS REGULATING FLOW OF FEED LIQUID INTO SAID DELIVERY CONDUIT OPERABLE TO MAINTAIN CONTINUOUS FLOODING OF SAID COMBINED CHAMBR AND A LIQUID LEVEL ABOVE THE LOWER END OF THE FEED SALT DELIVERY CONDUIT, THEREBY EFFECTIVE SEALING SAID TANK AGAINST INGRESS OF AIR FROM ABOVE.
Claim 2
Dependent Claim
136 words
A "DOWNFLOW" TYPE APPARATUS FOR PREPARATION OF AQUEOUS SALT SOLUTIONS, COMPRISING A TANK HAVING A BOTTOM WALL AND A HIGHER WALL SPACED ABOVE SAID BOTTOM WALL TO DEFINE THEREBETWEEN A COMBINED SALT AND WATER STORAGE CHAMBER, A BRINE WITHDRAWAL DEVICE HAVING A BRINE INLET A BRINE WITHDRAWL THE BOTTOM WALL OF SAID TANK, A FEED SALT DELIVERY CONDUIT EXTENDING DOWNWARDLY FROM THE BOTTOM OF SAID HOPPER WALL TERMINATING IN SPACED RELATION ABOVE SAID BOTTOM WALL OF THE TANK, A LIQUID FEED DEVICE DISCHARGING INTO SAID FEED SALT DELIVERY CONDUIT, AND AUTOMATIC CONTROL MEANS REGULATING FLOW OF FEED LIQUID INTO SAID DELIVERY CONDUIT OPERABLE TO MAINTAIN CONTINUOUS FLOODING OF SAID COMBINED CHAMBR AND A LIQUID LEVEL ABOVE THE LOWER END OF THE FEED SALT DELIVERY CONDUIT, THEREBY EFFECTIVE SEALING SAID TANK AGAINST INGRESS OF AIR FROM ABOVE.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |