US3907149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel having a sealed port
Assignee: Amalga Corp
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Filing: 1974-02-19
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Granted: 1975-09-23
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Expires: 1994-02-19
Abstract
Abstract A reinforced pressure vessel lined with a flexible non-metallic material and having a sealed port in which a closure is threaded to an intermediate boss, and the liner is sealed by pressure or mechanically to the boss or to an unthreaded portion of the closure.
Inventors
- 👤 Emerson R Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:11
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/14; A; A62; A62C; A62C13/00; A62C13/003; B65D39/00; B65D39/08; F; F17; F17C; F17C1/00; F17C1/10; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0119; F17C2201/05; F17C2201/058; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0612; F17C2203/0614; F17C2203/0619; F17C2203/0634; F17C2203/0658; F17C2203/066; F17C2203/0663; F17C2203/067; F17C2203/0673; F17C2203/068; F17C2203/0685; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/0157; F17C2205/0165; F17C2205/03; F17C2205/0302; F17C2205/0305; F17C2205/0323; F17C2205/0329; F17C2205/0388; F17C2205/0394; F17C2209/00; F17C2209/21; F17C2209/2109; F17C2209/2127; F17C2209/2154; F17C2209/22; F17C2209/227; F17C2221/00; F17C2221/01; F17C2221/011; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/013; F17C2223/03; F17C2223/036; F17C2260/00; F17C2260/03; F17C2260/035; F17C2260/036; F17C2270/00; F17C2270/07; F17C2270/0754
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A LINED PRESSURE VESSEL HAVING A SEALED PORT COMPRISING. A RESIN IMPREGNATED FIBERGLASS FILAMENT REINFORCED OUTER SHELL HAVING AN APERTURE THEREIN AT SAID PORT, A FLEXIBLE INNER LINER HAVING AN ANNULAR LIP EXTENDING OUTWARDLY WITHIN AID PORT, A RIGID ANNULAR BOSS HAVING AN INTERIORALLY THREADED OPENING AND HAVING SURFACES DISPOSED BETWEEN AND IN CONTACT WITH THE SHELL AND LINER AT THE SEALED PORT AND WITH THE LOWER END OF THE BOSS FREE OF THREADS AND IN ENGAGEMENT WITH THE OUTSIDE OF THE EXTENDING LIP OF SAID LINER, SAID BOSS BEING SOLID ALONG THE OUTER SURFACE AND HAVING CONCAVE HOLLOWS FACING THE LINER OF THE VESSEL WITH AT LEAST ONE VERTICAL FLANGE ON THE INSIDE OF THE BOSS EXTENDING TOWARD THE INSIDE OF THE BOSS AND INTO ENGAGEMENT WITH THE LINER TO REINFORCE THE BOSS, A VALVE ASSEMBLY THREADED
Claim 2
Dependent Claim
138 words
A LINED PRESSURE VESSEL HAVING A SEALED PORT COMPRISING. A RESIN IMPREGNATED FIBERGLASS FILAMENT REINFORCED OUTER SHELL HAVING AN APERTURE THEREIN AT SAID PORT, A FLEXIBLE INNER LINER HAVING AN ANNULAR LIP EXTENDING OUTWARDLY WITHIN AID PORT, A RIGID ANNULAR BOSS HAVING AN INTERIORALLY THREADED OPENING AND HAVING SURFACES DISPOSED BETWEEN AND IN CONTACT WITH THE SHELL AND LINER AT THE SEALED PORT AND WITH THE LOWER END OF THE BOSS FREE OF THREADS AND IN ENGAGEMENT WITH THE OUTSIDE OF THE EXTENDING LIP OF SAID LINER, SAID BOSS BEING SOLID ALONG THE OUTER SURFACE AND HAVING CONCAVE HOLLOWS FACING THE LINER OF THE VESSEL WITH AT LEAST ONE VERTICAL FLANGE ON THE INSIDE OF THE BOSS EXTENDING TOWARD THE INSIDE OF THE BOSS AND INTO ENGAGEMENT WITH THE LINER TO REINFORCE THE BOSS, A VALVE ASSEMBLY THREADED
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |