US3216745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flange coupling and method for assembling the same
Assignee: Lummus Nederland NV
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Filing: 1963-02-12
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Granted: 1965-11-09
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Expires: 1983-02-12
Abstract
No abstract record available.
Inventors
- 👤 Oey Djin Kian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:42
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/036; F16J; F16J13/00; F16J13/02; F16J13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A FLANGE COUPLING FOR CONNECTING TWO ABUTTING FLANGES OF A HIGH-PRESSURE VESSEL, IN WHICH THE FLANGES HAVE COINCIDING BOLT HOLES ARRANGED IN A CIRCULAR ROW, DRAW BOLTS IN SAID HOLES AND ENGAGING SAID FLANGES, AND SEALING MEANS ARRANGED BETWEEN SAID VESSEL PARTS, SAID TWO FLANGES HAVING ADJOINING FACES RESPECTIVELY PROVIDED WITH AN ANNULAR RECESS, EACH SAID RECESS BEING BOUNDED BY A SIDE WALL EXTENDING SUBSTANTIALLY RADIALLY INWARDLY FROM THE OUTER PERIPHERY OF THE RESPECTIVE FLANGE AND BY A SUBSTANTIALLY CYLINDRICAL BOTTOM WALL EXTENDING AXIALLY INWARDLY FROM THE END FACE OF SAID FLANGE, SAID CYLINDRICAL BOTTOM WALL HAVING AN ANNULAR GROOVE ADJACENT SAID RADIAL SIDE WALL, THE TWO RECESSES OF SAID TWO FLANGES DEFINING AN ANNULAR CIRCUMFERENTIAL CAVITY OF SUBSTANTIALLY U-SHAPED CROSS-SECTION, SAID BOLT HOLES OPENING INTO SAID CAVITY AND SAID ANNULAR SEALING MEANS BEING ARRANGED RADIALLY INWARDLY OF SAID CAVITY,
Claim 2
Dependent Claim
141 words
IN A FLANGE COUPLING FOR CONNECTING TWO ABUTTING FLANGES OF A HIGH-PRESSURE VESSEL, IN WHICH THE FLANGES HAVE COINCIDING BOLT HOLES ARRANGED IN A CIRCULAR ROW, DRAW BOLTS IN SAID HOLES AND ENGAGING SAID FLANGES, AND SEALING MEANS ARRANGED BETWEEN SAID VESSEL PARTS, SAID TWO FLANGES HAVING ADJOINING FACES RESPECTIVELY PROVIDED WITH AN ANNULAR RECESS, EACH SAID RECESS BEING BOUNDED BY A SIDE WALL EXTENDING SUBSTANTIALLY RADIALLY INWARDLY FROM THE OUTER PERIPHERY OF THE RESPECTIVE FLANGE AND BY A SUBSTANTIALLY CYLINDRICAL BOTTOM WALL EXTENDING AXIALLY INWARDLY FROM THE END FACE OF SAID FLANGE, SAID CYLINDRICAL BOTTOM WALL HAVING AN ANNULAR GROOVE ADJACENT SAID RADIAL SIDE WALL, THE TWO RECESSES OF SAID TWO FLANGES DEFINING AN ANNULAR CIRCUMFERENTIAL CAVITY OF SUBSTANTIALLY U-SHAPED CROSS-SECTION, SAID BOLT HOLES OPENING INTO SAID CAVITY AND SAID ANNULAR SEALING MEANS BEING ARRANGED RADIALLY INWARDLY OF SAID CAVITY,
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |