Patent US3121444A successfully refreshed from Google Patents.
US3121444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced valves
Assignee: Individual
•
Filing: 1960-07-13
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Granted: 1964-02-18
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Expires: 1980-07-13
Abstract
No abstract record available.
Inventors
- 👤 Bering Jorgen Dietz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:55
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/22; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7381; Y10T137/74; Y10T137/7423; Y10T137/7426; Y10T137/7433; Y10T137/7439; Y10T137/7491
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A LIQUID VALVE COMPRISING A STEM HAVING A HOLLOW CENTRAL PORTION, AN INLET TUBE AT ONE END OF SAID STEM OPENING INTO SAID HOLLOW CENTRAL PORTION, SIDE DISCHARGE PORTS OPENING LATERALLY FROM SAID CENTRAL PORTION, AND A SOLID PLUG SECTION ON THE END OF SAID STEM OPPOSITE SAID INLET TUBE; A HOLLOW VALVE BODY HAVING A CENTRAL SECTION ENCLOSING SAID PLUG SECTION HAVING CLEARANCE FOR LIQUID PASSAGE AROUND SAID PLUG SECTION AND ALSO FORMED AT ONE END WITH A VALVE SEAT COOPERABLE WITH SAID PLUG TO FORM A LIQUID TIGHT SEAL, SAID BODY FORMED AT ITS END OPPOSIT SAID SEAT WITH A CYLINDRICAL PORT IN LIQUID TIGHT ENGAGEMENT WITH SAID INLET TUBE OF SAID STEM, THE CROSS-SECTIONAL AREA OF SAID INLET TUBE AND OF SAID BODY SURROUNDING SAID VALVE SEAT BEING SUBSTANTIALLY EQUAL; AND A FLOAT FIXED TO SAID HOLLOW VALVE BODY CONTROLLING OPENING UP SAID VALVE DEPENDENT UPON THE LEVEL OF LIQUID IN WHICH SAID VALVE IS IMMERSED, WHEREBY SAID FLOAT CAUSES MOVEMENT OF SAID HOLLOW VALVE BODY RELATIVE TO SAID STEM FOR OPENING AND CLOSING MOVEMENT OF SAID VALVE BALANCED AGAINST LINE PRESSURE IN SAID INLET TUBE.
Claim 2
Dependent Claim
189 words
A LIQUID VALVE COMPRISING A STEM HAVING A HOLLOW CENTRAL PORTION, AN INLET TUBE AT ONE END OF SAID STEM OPENING INTO SAID HOLLOW CENTRAL PORTION, SIDE DISCHARGE PORTS OPENING LATERALLY FROM SAID CENTRAL PORTION, AND A SOLID PLUG SECTION ON THE END OF SAID STEM OPPOSITE SAID INLET TUBE; A HOLLOW VALVE BODY HAVING A CENTRAL SECTION ENCLOSING SAID PLUG SECTION HAVING CLEARANCE FOR LIQUID PASSAGE AROUND SAID PLUG SECTION AND ALSO FORMED AT ONE END WITH A VALVE SEAT COOPERABLE WITH SAID PLUG TO FORM A LIQUID TIGHT SEAL, SAID BODY FORMED AT ITS END OPPOSIT SAID SEAT WITH A CYLINDRICAL PORT IN LIQUID TIGHT ENGAGEMENT WITH SAID INLET TUBE OF SAID STEM, THE CROSS-SECTIONAL AREA OF SAID INLET TUBE AND OF SAID BODY SURROUNDING SAID VALVE SEAT BEING SUBSTANTIALLY EQUAL; AND A FLOAT FIXED TO SAID HOLLOW VALVE BODY CONTROLLING OPENING UP SAID VALVE DEPENDENT UPON THE LEVEL OF LIQUID IN WHICH SAID VALVE IS IMMERSED, WHEREBY SAID FLOAT CAUSES MOVEMENT OF SAID HOLLOW VALVE BODY RELATIVE TO SAID STEM FOR OPENING AND CLOSING MOVEMENT OF SAID VALVE BALANCED AGAINST LINE PRESSURE IN SAID INLET TUBE.
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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) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |