US3073336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lined ball valve
Assignee: —
•
Filing: —
•
Granted: 1963-01-15
•
Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:39
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0657; F16K27/00; F16K27/06; F16K27/067; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A LINED BALL VALVE COMPRISING A HOLLOW BODY SPOOL, OPPOSED HOLLOW END CASING MOUNTED IN SEALING RELATION ON THE ENDS OF SAID SPOOL, A VALVE BALL HAVING A FLUID PASSAGE THEREIN MOUNTED WITHIN SAID BODY SPOOL IN RESILIENT SEALING ENGAGEMENT WITH SAID END CASINGS, MEANS FOR ROTATING SAID VALVE BALL, SAID END CASINGS AND SAID SPOOL EACH BEING INTERIORLY LINED WITH CORROSION RESISTING MATERIAL, AND LINED WITH CORROSION RESISTING MATERIAL, WHEREBY ALL FLOW CONTACT AREAS ARE PROTECTED FROM CORROSIVE ACTION OF FLUIDS PASSING THERETHROUGH.
Claim 2
Dependent Claim
84 words
A LINED BALL VALVE COMPRISING A HOLLOW BODY SPOOL, OPPOSED HOLLOW END CASING MOUNTED IN SEALING RELATION ON THE ENDS OF SAID SPOOL, A VALVE BALL HAVING A FLUID PASSAGE THEREIN MOUNTED WITHIN SAID BODY SPOOL IN RESILIENT SEALING ENGAGEMENT WITH SAID END CASINGS, MEANS FOR ROTATING SAID VALVE BALL, SAID END CASINGS AND SAID SPOOL EACH BEING INTERIORLY LINED WITH CORROSION RESISTING MATERIAL, AND LINED WITH CORROSION RESISTING MATERIAL, WHEREBY ALL FLOW CONTACT AREAS ARE PROTECTED FROM CORROSIVE ACTION OF FLUIDS PASSING THERETHROUGH.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |