Patent US3318310A successfully refreshed from Google Patents.
Patent US3346002A successfully refreshed from Google Patents.
US3346002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary valve with expandable liner
Assignee: Halliburton Co
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Filing: 1965-02-12
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Granted: 1967-10-10
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Expires: 1985-02-12
Abstract
No abstract record available.
Inventors
- 👤 Jr William S Thompson
- 👤 Bruce J Frazier
- 👤 O L Morrisett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:06
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/18; F16K5/184; F16K5/04; F16K5/0457; F16K5/0471; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4442; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/49416; Y10T29/49419
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A ROTARY PLUG VALVE COMPRISING A VALVE BODY HAVING INLET AND OUTLET PASSAGEWAYS AND A CYLINDRICAL BORE TRANSVERSELY DISPOSED WITH RESPECT TO SAID PASSAGEWAYS, A CYLINDRICAL ELASTICALLY DEFORMABLE, SPLIT, RADIALLY EXPANDABLE LINER FIXEDLY POSITIONED WITHIN SAID BORE, MEANS FIXEDLY POSITIONING SAID LINEAR AGAINST ROTATION RELATIVE TO SAID VALVE BODY, SAID LINEAR HAVING INLET AND OUTLET PASSAGEWAYS IN FLUID COMMUNICATION WITH SAID INLET AND OUTLET PASSAGEWAYS IN SAID VALVE BODY AND A CYLINDRICAL BORE TRANSVERSELY DISPOSED WITH RESPECT TO SAID PASSAGEWAYS, A CYLINDRICAL VALVE ROTATABLY POSITIONED WITHIN SAID BORE OF SAID LINER, SAID VALVE HAVING A BORE ADAPTED TO BE ALIGNED WITH SAID PASSAGEWAYS, THE CORRESPONDING DIMENSIONS OF SAID CYLINDRICAL VALVE AND SAID CYLINDRICAL BORE IN SAID CYLINDRICAL LINER BEING SUCH THAT SAID LINER IS HELD IN A RADIALLY OUTWARDLY, ELASTICALLY DEFORMED CONDITION BY SAID VALVE INDEPENDENT OF ANY CONSTRAINING ACTION OF SAID VALVE BODY.
Claim 2
Dependent Claim
29 words
A ROTARY PLUG VALVE ACCORDING TO CLAIM 3 WHEREIN SAID VALVE INCLUDES PASSAGEWAYS FOR APPLYING LUBRICANT BETWEEN SAID VALVE AND SAID LINER BETWEEN SAID VALVE AND SAID VALVE BODY.
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |