Patent US3215273A successfully refreshed from Google Patents.
US3215273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple flow valve control for liquid treatment apparatus
Assignee: Union Tank Car Co
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Filing: 1962-04-30
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Granted: 1965-11-02
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 Benjamin H Kryzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:47
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42; C02F2303/00; C02F2303/16; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87338; Y10T137/87362
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A MULTIPLE FLOW VALVE CONTROL FOR LIQUID TREATMENT APPARATUS COMPRISING, HOUSING MEANS DEFINING A SERIES OF CHAMBERS INCLUDING A MIDDLE CHAMBER AND UPPER AND LOWER CHAMBERS, A FOURTH CAMBER, A FIRST INLET PORT COMMUNICATING WITH SAID MIDDLE CHAMBER, A FIRST OUTLET PORT, A FIRST BY-PASS MEANS CONNECTING SAID UPPER CHAMBER TO SAID FIRST OUTLET PORT, UPPER AND LOWER PORTS CONNECTING SAID UPPER AND LOWER CHAMBERS RESPECTIVELY TO SAID MIDDLE CHAMBER, UPPER AND LOWER OPPOSITELY DISPOSED VALVE SEATS SURROUNDING SAID UPPER AND LOWER PORTS IN SAID MIDDLE CHAMBER, A FLOAT VALVE CLOSURE MEMBER FREELY MOVABLE IN SAID MIDDLE CHAMBER ALTERNATELY TO POSITIONS IN CLOSED RELATION TO SAID UPPER AND LOWER VALVE SEATS RESPECTIVELY, A TANK CONNECTING PORT COMMUNICATING WITH SAID LOWER CHAMBER, A SECOND TANK CONNECTING PORT COMMUNICATING WITH SAID FOURTH CHAMBER, A REGENERANT SUPPLY CONNECTING PORT COMMUNICATING WITH SAID FOURTH CHAMBER, A SECOND BY-PASS MEANS CONNECTING SAID FIRST BY-PASS MEANS TO SAID FOURTH CHAMBER, A WASTE CONNECTING PORT COMMUNICATING WITH SAID LOWER CHAMBER, A WASTE CONDUIT CONNECTED TO SID WASTE CONNECTING PORT, A SECOND OUTLET PORT COMMUNICATING WITH SAID UPPER CHAMBER, SAID FLOAT VALVE CLOSURE MEMBER BEING FREE FOR
Claim 2
Dependent Claim
189 words
A MULTIPLE FLOW VALVE CONTROL FOR LIQUID TREATMENT APPARATUS COMPRISING, HOUSING MEANS DEFINING A SERIES OF CHAMBERS INCLUDING A MIDDLE CHAMBER AND UPPER AND LOWER CHAMBERS, A FOURTH CAMBER, A FIRST INLET PORT COMMUNICATING WITH SAID MIDDLE CHAMBER, A FIRST OUTLET PORT, A FIRST BY-PASS MEANS CONNECTING SAID UPPER CHAMBER TO SAID FIRST OUTLET PORT, UPPER AND LOWER PORTS CONNECTING SAID UPPER AND LOWER CHAMBERS RESPECTIVELY TO SAID MIDDLE CHAMBER, UPPER AND LOWER OPPOSITELY DISPOSED VALVE SEATS SURROUNDING SAID UPPER AND LOWER PORTS IN SAID MIDDLE CHAMBER, A FLOAT VALVE CLOSURE MEMBER FREELY MOVABLE IN SAID MIDDLE CHAMBER ALTERNATELY TO POSITIONS IN CLOSED RELATION TO SAID UPPER AND LOWER VALVE SEATS RESPECTIVELY, A TANK CONNECTING PORT COMMUNICATING WITH SAID LOWER CHAMBER, A SECOND TANK CONNECTING PORT COMMUNICATING WITH SAID FOURTH CHAMBER, A REGENERANT SUPPLY CONNECTING PORT COMMUNICATING WITH SAID FOURTH CHAMBER, A SECOND BY-PASS MEANS CONNECTING SAID FIRST BY-PASS MEANS TO SAID FOURTH CHAMBER, A WASTE CONNECTING PORT COMMUNICATING WITH SAID LOWER CHAMBER, A WASTE CONDUIT CONNECTED TO SID WASTE CONNECTING PORT, A SECOND OUTLET PORT COMMUNICATING WITH SAID UPPER CHAMBER, SAID FLOAT VALVE CLOSURE MEMBER BEING FREE FOR
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |