US3338262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for a constant-level flow regulator
Assignee: HENRY POTEZ ETS
•
Filing: 1964-11-02
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Granted: 1967-08-29
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Expires: 1984-11-02
Abstract
No abstract record available.
Inventors
- 👤 Chopelin Bruno Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:09
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/24; F16K31/26; F16K31/265; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7297; Y10T137/73; Y10T137/7329; Y10T137/7358; Y10T137/7365; Y10T137/7439; Y10T137/7465; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86453; Y10T137/87096; Y10T137/87121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A SAFETY DEVICE FOR A LIQUID FLOW REGULATOR OF THE TYPE HAVING A BODY, A CONSTANT-LEVEL FLOAT CHAMBER IN THE BODY, A FLOAT MOVABLE IN THE FLOAT CHAMBER AND A LIQUID SUPPLY CONDUIT COMMUNICATING WITH THE CHAMBER, SAID DEVICE COMPRISING IN COMBINATION, A FIRST NEEDLE VALVE AND A SECOND NEEDLE VALVE IN CONCENTRIC CO-AXIAL AND AXIALLY MOVABLE RELATION TO EACH OTHER, TWO VALVE SEATS INSERTED IN SERIES RELATION IN THE LIQUID SUPPLY CONDUIT, ONE OF SAID VALVE SEATS BEING AN UPSTREAM VALVE SEAT AND THE OTHER OF THE VALVE SEATS BEING A DOWNSTREAM VALVE SEAT RELATIVE TO THE DIRECTION OF FLOW OF THE LIQUID TOWARD THE FLOAT CHAMBER, THE FIRST NEEDLE VALVE AND SECOND NEEDLE VALVE RESPECTIVELY COACTING WITH THE UPSTREAM AND DOWNSTREAM VALVE SEATS, A FIRST LINKAGE DEVICE OPERATIVELY CONNECTED TO THE FLOAT AND TO THE FIRST NEEDLE VALVE FOR APPLYING THE FIRST NEEDLE VALVE AGAINST THE UPSTREAM VALVE SEAT WHEN THE LIQUID IN THE FLOAT CHAMBER REACHES A PREDETERMINED FIRST LEVEL, AND A SECOND LINKAGE DEVICE OPERA-
Claim 2
Dependent Claim
169 words
A SAFETY DEVICE FOR A LIQUID FLOW REGULATOR OF THE TYPE HAVING A BODY, A CONSTANT-LEVEL FLOAT CHAMBER IN THE BODY, A FLOAT MOVABLE IN THE FLOAT CHAMBER AND A LIQUID SUPPLY CONDUIT COMMUNICATING WITH THE CHAMBER, SAID DEVICE COMPRISING IN COMBINATION, A FIRST NEEDLE VALVE AND A SECOND NEEDLE VALVE IN CONCENTRIC CO-AXIAL AND AXIALLY MOVABLE RELATION TO EACH OTHER, TWO VALVE SEATS INSERTED IN SERIES RELATION IN THE LIQUID SUPPLY CONDUIT, ONE OF SAID VALVE SEATS BEING AN UPSTREAM VALVE SEAT AND THE OTHER OF THE VALVE SEATS BEING A DOWNSTREAM VALVE SEAT RELATIVE TO THE DIRECTION OF FLOW OF THE LIQUID TOWARD THE FLOAT CHAMBER, THE FIRST NEEDLE VALVE AND SECOND NEEDLE VALVE RESPECTIVELY COACTING WITH THE UPSTREAM AND DOWNSTREAM VALVE SEATS, A FIRST LINKAGE DEVICE OPERATIVELY CONNECTED TO THE FLOAT AND TO THE FIRST NEEDLE VALVE FOR APPLYING THE FIRST NEEDLE VALVE AGAINST THE UPSTREAM VALVE SEAT WHEN THE LIQUID IN THE FLOAT CHAMBER REACHES A PREDETERMINED FIRST LEVEL, AND A SECOND LINKAGE DEVICE OPERA-
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |