US3215165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for the control of fluid flow
Assignee: Consolidated Paper Bahamas Ltd
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Filing: 1963-05-27
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Granted: 1965-11-02
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Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 John D Boadway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:33
CPC Classifications
F; F16; F16K; F16K3/00; F15; F15D; F15D1/00; F15D1/0015
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A DEVICE FOR CONTROLLING THE FLOW OF A LIQUID, COMPRISING AN ENCLOSURE HAVING AN UNOBSTRUCTED INTERIOR DEFINED BY A CONTINUOUSLY CURVED SIDE WALL AND A PAIR OF FLAT, PARALLEL END WALLS, SAID SIDE WALL BEING PROVIDED WITH AN INLET OPENING EXTENDING SUBSTANTIALLY FROM ONE END WALL TO THE OTHER AND HAVING A FIRST AREA, ONE OF SAID END WALLS BEING PROVIDED WITH A CENTRALLY LOCATED OUTLET OPENING HAVING A SECOND AREA SUBSTANTIALLY EQUAL TO THE FIRST AREA, AN INLET PIPE CONNECTED TO THE ENCLOSURE AT SAID INLET OPENING FOR DIRECTING A LIQUID TANGENTIALLY INTO SAID ENCLOSURE THROUGH SAID INLET TO FORM A LIQUID VORTEX, A MOVABLE GATE LOCATED AT SAID INLET OPENING POSITIONED IN THE INLET LIQUID OPENING INLET OPENING POSITIONED MEANS MOVING THE GATE TO OBSTRUCT THE PATH BY VARYING AMOUNTS.
Claim 2
Independent Claim
132 words
A DEVICE FOR CONTROLLING THE FLOW OF A LIQUID, COMPRISING AN ENCLOSURE HAVING AN UNOBSTRUCTED INTERIOR DEFINED BY A CONTINUOUSLY CURVED SIDE WALL AND A PAIR OF FLAT, PARALLEL END WALLS, SAID SIDE WALL BEING PROVIDED WITH AN INLET OPENING EXTENDING SUBSTANTIALLY FROM ONE END WALL TO THE OTHER AND HAVING A FIRST AREA, ONE OF SAID END WALLS BEING PROVIDED WITH A CENTRALLY LOCATED OUTLET OPENING HAVING A SECOND AREA SUBSTANTIALLY EQUAL TO THE FIRST AREA, AN INLET PIPE CONNECTED TO THE ENCLOSURE AT SAID INLET OPENING FOR DIRECTING A LIQUID TANGENTIALLY INTO SAID ENCLOSURE THROUGH SAID INLET TO FORM A LIQUID VORTEX, A MOVABLE GATE LOCATED AT SAID INLET OPENING POSITIONED IN THE INLET LIQUID OPENING INLET OPENING POSITIONED MEANS MOVING THE GATE TO OBSTRUCT THE PATH BY VARYING AMOUNTS.
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) | 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 |