US3302816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent and closure cap assembly
Assignee: American Flange and Manufacturing Co Inc
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Filing: 1965-01-05
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Granted: 1967-02-07
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Expires: 1985-01-05
Abstract
No abstract record available.
Inventors
- 👤 Sloper Leonard
- 👤 Rezner Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:40
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A CLOSURE AND VENTING FITTING FOR TANKS COMPRISING A PIVOTALLY INTERCONNECTED CLOSURE FLANGE AND CAP, SAID FLANGE HAVING AN UPSTANDING CYLINDRICAL NECK TERMINATING IN AN UPWARDLY FACING FREE EDGE, A LATERALLY OUTWARDLY EXTENDING ANNULAR BASE SURROUNDING THE LOWER END OF SAID NECK ADAPTED TO BE SECURED ABOUT A TANK WALL OPENING, SAID BASE TERMINATING IN AN OUTWARDLY FACING FREE EDGE, A PAIR OF DIAMETRICALLY OPPOSED LUGS INTEGRALLY FORMED WITH SAID FLANGE EXTENDING OUTWARDLY FROM SAID OUTWARDLY FACING FREE EDGE, SAID LUGS HAVING AN UPPERMOST INWARDLY CURVED PORTION AND AN ARM EXTENDING RADIALLY INWARDLY FROM SAID INWARDLY CURVED POSITION, SAID CAP DISPOSED IN OVERLYING ENGAGEMENT WITH SAID CLOSURE FLANGE AND HAVING A DISC-LIKE TOP, A DEPENDING SKIRT SURROUNDING SAID TOP, A PAIR OF DIAMETRICALLY OPPOSED CHANNEL PORTIONS INTEGRALLY FORMED WITH SAID CAP EXTENDING LATERALLY OUTWARDLY FROM SAID TOP, SAID CHANNEL PORTIONS HAVING A TOP WALL FORMED AS AN EXTENSION OF SAID DISC-LIKE CAP TOP, AND SPACED SIDE WALLS DEPENDING FROM SAID CHANNEL TOP WALL AND EXTENDING LATERALLY OUTWARDLY FROM SAID SKIRT, SAID CHANNEL PORTIONS CONFINING SAID RESPECTIVE LUGS THEREWITHIN.
Claim 2
Dependent Claim
178 words
A CLOSURE AND VENTING FITTING FOR TANKS COMPRISING A PIVOTALLY INTERCONNECTED CLOSURE FLANGE AND CAP, SAID FLANGE HAVING AN UPSTANDING CYLINDRICAL NECK TERMINATING IN AN UPWARDLY FACING FREE EDGE, A LATERALLY OUTWARDLY EXTENDING ANNULAR BASE SURROUNDING THE LOWER END OF SAID NECK ADAPTED TO BE SECURED ABOUT A TANK WALL OPENING, SAID BASE TERMINATING IN AN OUTWARDLY FACING FREE EDGE, A PAIR OF DIAMETRICALLY OPPOSED LUGS INTEGRALLY FORMED WITH SAID FLANGE EXTENDING OUTWARDLY FROM SAID OUTWARDLY FACING FREE EDGE, SAID LUGS HAVING AN UPPERMOST INWARDLY CURVED PORTION AND AN ARM EXTENDING RADIALLY INWARDLY FROM SAID INWARDLY CURVED POSITION, SAID CAP DISPOSED IN OVERLYING ENGAGEMENT WITH SAID CLOSURE FLANGE AND HAVING A DISC-LIKE TOP, A DEPENDING SKIRT SURROUNDING SAID TOP, A PAIR OF DIAMETRICALLY OPPOSED CHANNEL PORTIONS INTEGRALLY FORMED WITH SAID CAP EXTENDING LATERALLY OUTWARDLY FROM SAID TOP, SAID CHANNEL PORTIONS HAVING A TOP WALL FORMED AS AN EXTENSION OF SAID DISC-LIKE CAP TOP, AND SPACED SIDE WALLS DEPENDING FROM SAID CHANNEL TOP WALL AND EXTENDING LATERALLY OUTWARDLY FROM SAID SKIRT, SAID CHANNEL PORTIONS CONFINING SAID RESPECTIVE LUGS THEREWITHIN.
References Cited (Backward Citations)
US2173787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |