US3159306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water conditioning tank and liner
Assignee: Culligan Inc
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Filing: 1963-07-03
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Granted: 1964-12-01
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Expires: 1983-07-03
Abstract
No abstract record available.
Inventors
- 👤 Charles E Lyall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:56
CPC Classifications
E; E03; E03B; E03B11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A HOLLOW TANK AND LINER COMBINATION, COMPRISING A CYLINDRICAL TANK HAVING A TOP AND BOTTOM CLOSURE WITH A BOTTOM SUPPORTING MEMBER AND A SLOTTED OPENING CENTRALLY LOCATED IN THE TOP CLOSURE OF THE TANK, A FLEXIBLE REMOVABLE PLASTIC LINER CONFORMABLY FITTING WITHIN THE TANK AND HAVING SPACED OPENINGS AT ONE END THEREOF, A YOKE POSITIONED WITHIN THE LINER IN THE TANK, SAID YOKE INCLUDING A GENERALLY FLAT PLATE AND A PAIR OF SPACED THREADED PROJECTIONS EXTENDING THROUGH THE OPENINGS IN THE LINER AND THROUGH THE SLOTTED OPENING OF THE TOP CLOSURE, SAID PROJECTIONS DEFINING A PAIR OF SPACED OPENINGS ADAPTED TO RECEIVE SUITABLE FITTINGS FOR THE TANK, A SEALING GASKET MOUNTED BETWEEN THE LINER AND THE TOP CLOSURE TO SEAL THE LINER IN THE TANK AND SEAL SAID OPENING, A COVER PLATE FITTING OVER SAID PROJECTIONS AT THE EXTERIOR OF THE TANK AND EXTENDING BEYOND THE SLOTTED OPENING, AND A PAIR OF NUTS THREADINGLY ENGAGING THE PROJECTIONS TO SEAL AND SECURE THE YOKE AND LINER IN THE TANK.
Claim 2
Dependent Claim
168 words
A HOLLOW TANK AND LINER COMBINATION, COMPRISING A CYLINDRICAL TANK HAVING A TOP AND BOTTOM CLOSURE WITH A BOTTOM SUPPORTING MEMBER AND A SLOTTED OPENING CENTRALLY LOCATED IN THE TOP CLOSURE OF THE TANK, A FLEXIBLE REMOVABLE PLASTIC LINER CONFORMABLY FITTING WITHIN THE TANK AND HAVING SPACED OPENINGS AT ONE END THEREOF, A YOKE POSITIONED WITHIN THE LINER IN THE TANK, SAID YOKE INCLUDING A GENERALLY FLAT PLATE AND A PAIR OF SPACED THREADED PROJECTIONS EXTENDING THROUGH THE OPENINGS IN THE LINER AND THROUGH THE SLOTTED OPENING OF THE TOP CLOSURE, SAID PROJECTIONS DEFINING A PAIR OF SPACED OPENINGS ADAPTED TO RECEIVE SUITABLE FITTINGS FOR THE TANK, A SEALING GASKET MOUNTED BETWEEN THE LINER AND THE TOP CLOSURE TO SEAL THE LINER IN THE TANK AND SEAL SAID OPENING, A COVER PLATE FITTING OVER SAID PROJECTIONS AT THE EXTERIOR OF THE TANK AND EXTENDING BEYOND THE SLOTTED OPENING, AND A PAIR OF NUTS THREADINGLY ENGAGING THE PROJECTIONS TO SEAL AND SECURE THE YOKE AND LINER IN THE TANK.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |