Patent US3346005A successfully refreshed from Google Patents.
US3346005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lined butterfly valves
Assignee: Conoflow Corp
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Filing: 1964-10-29
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Granted: 1967-10-10
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Expires: 1984-10-29
Abstract
No abstract record available.
Inventors
- 👤 Albert J Hanssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:25
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/226; F16K1/2268; F16K1/2263; F16K1/2265; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
A LINED BUTTERFLY VALVE COMPRISING: (1) A BODY WHICH: (A) IS FORMED OF A RIGID MATERIAL, (B) HAS AN INTERIOR WALL SURFACE, (C) HAS AN EXTERIOR WALL SURFACE SPACED FROM SAID INTERIOR WALL SURFACE, (D) HAS AN INTERIOR CAVITY WHICH: (1) IS DEFINED BY SAID INTERIOR WALL SURFACE, (E) HAS A STEM OPENING WHICH: (1) EXTENDS BETWEEN SAID WALL SURFACES, 2) COMMUNICATES WITH SAID INTEIOR CAVITY, (3) HAS AN AXIS, (II) A LINER WHICH: (A) IS FORMED OF RESILIENT MATERIAL, (B) HAS AN OUTER SURFACE WHICH: (1) ENGAGES SAID BODY INTERIOR SURFACE, (2) COVERS SAID BODY INTERIOR SURFACE, (C) HAS AN INNER SURFACE WHICH: (1) IS SPACED INWARDLY WITH RESPECT TO SAID OUTER LINER SURFACE, (2) FORMS A GENERALLY CYLINDRICAL FLOW PASSAGE, 3) HAS A SEATING REGION WHICH: (A) IS GENERALLY DEFINED BY INTERSECTION OF SAID LINER INNER SURFACE AND A FIRST PLANE WHICH: (I) INCLUDES SAID STEM OPENING AXIS, (II) LIES ACROSS SAID FLOW PASSAGE, (B) HAS FIRST PORTIONS WHICH: (I) ARE REMOTE FROM SAID STEM OPENING AXIS, (II) FOLLOW A CURVE, (C) HAS SECOND PORTIONS WHICH: (I) ARE LOCATED AT SAID STEM OPENING AXIS, (II) JOIN AND SAID FIRST LINER PORTIONS TO FORM CORNERS WHICH: (O) ARE ON OPPOSITE SIDES OF SAID STEM OPENING AXIS, (OO) ARE EACH SPACED A SELECTED DISTANCE FROM SAID STEM OPENING AXIS,
Claim 2
Dependent Claim
219 words
A LINED BUTTERFLY VALVE COMPRISING: (1) A BODY WHICH: (A) IS FORMED OF A RIGID MATERIAL, (B) HAS AN INTERIOR WALL SURFACE, (C) HAS AN EXTERIOR WALL SURFACE SPACED FROM SAID INTERIOR WALL SURFACE, (D) HAS AN INTERIOR CAVITY WHICH: (1) IS DEFINED BY SAID INTERIOR WALL SURFACE, (E) HAS A STEM OPENING WHICH: (1) EXTENDS BETWEEN SAID WALL SURFACES, 2) COMMUNICATES WITH SAID INTEIOR CAVITY, (3) HAS AN AXIS, (II) A LINER WHICH: (A) IS FORMED OF RESILIENT MATERIAL, (B) HAS AN OUTER SURFACE WHICH: (1) ENGAGES SAID BODY INTERIOR SURFACE, (2) COVERS SAID BODY INTERIOR SURFACE, (C) HAS AN INNER SURFACE WHICH: (1) IS SPACED INWARDLY WITH RESPECT TO SAID OUTER LINER SURFACE, (2) FORMS A GENERALLY CYLINDRICAL FLOW PASSAGE, 3) HAS A SEATING REGION WHICH: (A) IS GENERALLY DEFINED BY INTERSECTION OF SAID LINER INNER SURFACE AND A FIRST PLANE WHICH: (I) INCLUDES SAID STEM OPENING AXIS, (II) LIES ACROSS SAID FLOW PASSAGE, (B) HAS FIRST PORTIONS WHICH: (I) ARE REMOTE FROM SAID STEM OPENING AXIS, (II) FOLLOW A CURVE, (C) HAS SECOND PORTIONS WHICH: (I) ARE LOCATED AT SAID STEM OPENING AXIS, (II) JOIN AND SAID FIRST LINER PORTIONS TO FORM CORNERS WHICH: (O) ARE ON OPPOSITE SIDES OF SAID STEM OPENING AXIS, (OO) ARE EACH SPACED A SELECTED DISTANCE FROM SAID STEM OPENING AXIS,
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 |