US3144879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable laminar flow restriction
Assignee: Individual
•
Filing: 1963-03-12
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Granted: 1964-08-18
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Expires: 1983-03-12
Abstract
No abstract record available.
Inventors
- 👤 Hans D Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:48
CPC Classifications
F; F16; F16K; F16K47/00; G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/40; G05; G05D; G05D7/00; G05D7/01; G05D7/0186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
APPARATUS FOR CONTROLLABLY RESTRICTING THE FLOW OF FLUID THERETHROUGH WHICH COMPRISES A HOUSING HAVING A FLAT UPPER SURFACE AND HAVING AN OPENING TO RECEIVE A SCREW OR VALVE STEM CENTRALLY OF SAID UPPER SURFACE AND EXTENDING INTO THE HOUSING, SAID HOUSING ALSO BEING PROVIDED WITH A CIRCULAR CHANNEL DISPOSED SUBSTANTIALLY CORADIALLY AND IN APPOSITION WITH SAID SCREW OPENING AND COMMUNICATING WITH THE UPPER FLAT SURFACE, SAID HOUSING BEING FURTHER PROVIDED WITH AN OPENING THROUGH ONE OF ITS SURFACES OTHER THAN THE UPPER FLAT SURFACE AND EXTENDING INTO THE HOUSING TO PROVIDE FOR INGRESS OF FLUID AND SAID HOUSING BEING ALSO PROVIDED WITH ANOTHER OPENING THROUGH ONE OF ITS SURFACES OTHER THAN ITS UPPER FLAT SURFACE TO PROVIDE FOR EGRESS OF FLUID THEREFROM, SAID HOUSING BEING PROVIDED WITH A PORT TO CONNECT THE INLET OPENING TO THE CIRCULAR CHANNEL AND FLAT UPPER SURFACE OF THE HOUSING SUBSTANTIALLY CENTRALLY OF SAID SURFACE, SAID HOUSING BEING PROVIDED WITH A SECOND PORT WHICH CONNECTS THE FLUID EGRESS OPENING WITH THE FLAT UPPER SURFACE AT A SUBSTANTIALLY GREATER RADIAL DISTANCE FROM THE CENTER OF SAID FLAT UPPER SURFACE THAN THE INLET PORT CONNECTION THERETO; A FLAT PLATE HELD ABOVE AND IN OPPOSITION TO THE FLAT UPPER
Claim 2
Dependent Claim
201 words
APPARATUS FOR CONTROLLABLY RESTRICTING THE FLOW OF FLUID THERETHROUGH WHICH COMPRISES A HOUSING HAVING A FLAT UPPER SURFACE AND HAVING AN OPENING TO RECEIVE A SCREW OR VALVE STEM CENTRALLY OF SAID UPPER SURFACE AND EXTENDING INTO THE HOUSING, SAID HOUSING ALSO BEING PROVIDED WITH A CIRCULAR CHANNEL DISPOSED SUBSTANTIALLY CORADIALLY AND IN APPOSITION WITH SAID SCREW OPENING AND COMMUNICATING WITH THE UPPER FLAT SURFACE, SAID HOUSING BEING FURTHER PROVIDED WITH AN OPENING THROUGH ONE OF ITS SURFACES OTHER THAN THE UPPER FLAT SURFACE AND EXTENDING INTO THE HOUSING TO PROVIDE FOR INGRESS OF FLUID AND SAID HOUSING BEING ALSO PROVIDED WITH ANOTHER OPENING THROUGH ONE OF ITS SURFACES OTHER THAN ITS UPPER FLAT SURFACE TO PROVIDE FOR EGRESS OF FLUID THEREFROM, SAID HOUSING BEING PROVIDED WITH A PORT TO CONNECT THE INLET OPENING TO THE CIRCULAR CHANNEL AND FLAT UPPER SURFACE OF THE HOUSING SUBSTANTIALLY CENTRALLY OF SAID SURFACE, SAID HOUSING BEING PROVIDED WITH A SECOND PORT WHICH CONNECTS THE FLUID EGRESS OPENING WITH THE FLAT UPPER SURFACE AT A SUBSTANTIALLY GREATER RADIAL DISTANCE FROM THE CENTER OF SAID FLAT UPPER SURFACE THAN THE INLET PORT CONNECTION THERETO; A FLAT PLATE HELD ABOVE AND IN OPPOSITION TO THE FLAT UPPER
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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |