Patent US2930468A successfully refreshed from Google Patents.
Patent US3105553A successfully refreshed from Google Patents.
US3105553A
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Fluid flow control apparatus
Assignee: Halliburton Co
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Filing: 1959-12-03
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Granted: 1963-10-01
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Expires: 1979-12-03
Abstract
No abstract record available.
Inventors
- 👤 Pat T W Chisholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:31
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN FLUID FLOW CONTROL APPARATUS, THE COMBINATION OF A HOUSING MEMBER ADAPTED TO BE CONNECTED BETWEEN SECTIONS OF A CONDUIT, MEANS FORMING A PASSAGEWAY EXTENDING LONGITAUDINALLY THROUGH SAID HOUSING MEMBER WHEREBY FLUID MAY FLOW FROM A SECTION OF THE CONDUIT THEREBELOW INTO A SECTION OF THE CONDUIT THEREABOVE, SAID HOUSING MEMBER HAVING A BY-PASS PORT IN THE WALL THEREOF, SAID BY-PASS PORT BEING ADAPTED WHEN OPEN TO PROVIDE FLUID COMMUNICATION BETWEEN SAID PASSAGEWAY AND THE OUTSIDE OF SAID HOUSING MEMBER, A MAIN VALVE MEMBER MOUNTED FOR MOVEMENT IN SAID HOUSING MEMBER FROM AN INITIAL POSITION CLOSING SAID PASSAGEWAY TO A POSITION WHEREIN SAID PASSAGEWAY IS OPEN, AND A MOVABLY MOUNTED BY-PASS VALVE MEMBER FOR CON-
Claim 2
Dependent Claim
115 words
IN FLUID FLOW CONTROL APPARATUS, THE COMBINATION OF A HOUSING MEMBER ADAPTED TO BE CONNECTED BETWEEN SECTIONS OF A CONDUIT, MEANS FORMING A PASSAGEWAY EXTENDING LONGITAUDINALLY THROUGH SAID HOUSING MEMBER WHEREBY FLUID MAY FLOW FROM A SECTION OF THE CONDUIT THEREBELOW INTO A SECTION OF THE CONDUIT THEREABOVE, SAID HOUSING MEMBER HAVING A BY-PASS PORT IN THE WALL THEREOF, SAID BY-PASS PORT BEING ADAPTED WHEN OPEN TO PROVIDE FLUID COMMUNICATION BETWEEN SAID PASSAGEWAY AND THE OUTSIDE OF SAID HOUSING MEMBER, A MAIN VALVE MEMBER MOUNTED FOR MOVEMENT IN SAID HOUSING MEMBER FROM AN INITIAL POSITION CLOSING SAID PASSAGEWAY TO A POSITION WHEREIN SAID PASSAGEWAY IS OPEN, AND A MOVABLY MOUNTED BY-PASS VALVE MEMBER FOR CON-
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |