US3272340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quickly detachable strainer system for water treatment tanks
Assignee: Hungerford and Terry Inc
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Filing: 1963-05-22
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Granted: 1966-09-13
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Expires: 1983-05-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Churchill Hungerford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:00
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/46; B01D24/4631; B01D24/02; B01D24/10; B01D24/12; C; C02; C02F; C02F1/00; C02F1/001; C02F1/004; C02F1/28; C02F1/281; C02F1/42; C02F2001/425; C02F2201/00; C02F2201/002; C02F2201/004; C02F2303/00; C02F2303/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN WATER TREATING EQUIPTMENT EMPLOYING A FILTER-TYPE BED OF SMALL-PARTICLED TREATING MATERIAL, THE COMBINATION OF A TANK HAVING A BOTTOM HEAD, A PLURALITY OF OPENINGS IN SAID HEAD, STRAINER MEMBRES ADAPTED FOR READY INSERTION AND REMOVAL THROUGH THE OPENINGS FROM OUTSIDE THE HEAD, A COLLECTOR MANIFOLD BELOW THE HEAD, QUICKLY DETACHABLE MEANS SECURING EACH STRAINER MEMBER IN ITS OPENING, AND FLUID CONNECTION MEANS BETWEEN EACH STRAINER MEMBER AND THE MANIFOLD, ALL SO ARRANGED THAT SAID STRAINER MEMBERS MAY BE REMOVED WITHOUT DISTURBING SAID MANIFOLD.
Claim 2
Dependent Claim
84 words
IN WATER TREATING EQUIPTMENT EMPLOYING A FILTER-TYPE BED OF SMALL-PARTICLED TREATING MATERIAL, THE COMBINATION OF A TANK HAVING A BOTTOM HEAD, A PLURALITY OF OPENINGS IN SAID HEAD, STRAINER MEMBRES ADAPTED FOR READY INSERTION AND REMOVAL THROUGH THE OPENINGS FROM OUTSIDE THE HEAD, A COLLECTOR MANIFOLD BELOW THE HEAD, QUICKLY DETACHABLE MEANS SECURING EACH STRAINER MEMBER IN ITS OPENING, AND FLUID CONNECTION MEANS BETWEEN EACH STRAINER MEMBER AND THE MANIFOLD, ALL SO ARRANGED THAT SAID STRAINER MEMBERS MAY BE REMOVED WITHOUT DISTURBING SAID MANIFOLD.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |