US3240644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making pressure vessels
Assignee: Specialties Development Corp
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Filing: 1962-11-02
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Granted: 1966-03-15
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Expires: 1982-11-02
Abstract
No abstract record available.
Inventors
- 👤 Wolff Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:27
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/54; B29C70/56; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602; B29D; B29D22/00; B29D22/003; F; F17; F17C; F17C1/00; F17C1/16; B29L; B29L2031/00; B29L2031/712; B29L2031/7154; B29L2031/7156; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0345; F17C2203/035; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0619; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2203/0646; F17C2203/0656; F17C2203/0658; F17C2203/0663; F17C2203/0665; F17C2223/00; F17C2223/03; F17C2223/036; F17C2260/00; F17C2260/01; F17C2260/012; F17C2270/00; F17C2270/01; F17C2270/0186; F17C2270/0189; F17C2270/0197
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
THE METHOD OF FABRICATING VESSELS FOR STORING FLUID UNDER PRESSURE WHICH METHOD COMPRISES APPLYING A HOOP WINDING UNDER SUFFICIENT TENSION A PLURALITY OF LAYERS OF RESIN COATED HIGH TENSILE STRENGTH CONTINUOUS FILAMENTS ON A CYLINDRICAL WALL SECTION OF A SHELL FORMED OF HIGH STRENGTH, DUCTILE METAL TO ESTABLISH A PRECEPTABLE PRESTRESS IN THE CYLINDRICAL WALL SECTION, THE SHELL HAVING END WALLS ONE OF WHICH IS PROVIDED WITH AN OPENING FOR INTRODUCTION AND DISCHARGING FLUID UNDER PRESURE; CURING THE RESIN TO PROVIDE A PERMANENT FILAMENT RESIN LAMINATE ON THE CYLINDRICAL WALL SECTION; AND THEREAFTER SUBJECTING THE INTERIOR OF THE SHELL TO FLUID PRESSURE AT A VALUE AND FOR A SUFFICIENT DURATION OF TIME TO EXPAND THE SHELL AND CAUSE THE YIELD STRENGTH TO APPROACH THE ULTIMATE TENSILE STRENGTH OF THE METAL PROVIDING THE CYLINDRICAL SECTION TO THEREBY ESTABLISH A FURTHER PRECEPTABLE PRE-STRESS IN THE CYLINDRICAL WALL SECTION.
Claim 2
Independent Claim
146 words
THE METHOD OF FABRICATING VESSELS FOR STORING FLUID UNDER PRESSURE WHICH METHOD COMPRISES APPLYING A HOOP WINDING UNDER SUFFICIENT TENSION A PLURALITY OF LAYERS OF RESIN COATED HIGH TENSILE STRENGTH CONTINUOUS FILAMENTS ON A CYLINDRICAL WALL SECTION OF A SHELL FORMED OF HIGH STRENGTH, DUCTILE METAL TO ESTABLISH A PRECEPTABLE PRESTRESS IN THE CYLINDRICAL WALL SECTION, THE SHELL HAVING END WALLS ONE OF WHICH IS PROVIDED WITH AN OPENING FOR INTRODUCTION AND DISCHARGING FLUID UNDER PRESURE; CURING THE RESIN TO PROVIDE A PERMANENT FILAMENT RESIN LAMINATE ON THE CYLINDRICAL WALL SECTION; AND THEREAFTER SUBJECTING THE INTERIOR OF THE SHELL TO FLUID PRESSURE AT A VALUE AND FOR A SUFFICIENT DURATION OF TIME TO EXPAND THE SHELL AND CAUSE THE YIELD STRENGTH TO APPROACH THE ULTIMATE TENSILE STRENGTH OF THE METAL PROVIDING THE CYLINDRICAL SECTION TO THEREBY ESTABLISH A FURTHER PRECEPTABLE PRE-STRESS IN THE CYLINDRICAL WALL SECTION.
References Cited (Backward Citations)
US1232110A
Cited
US2160371A
Cited
US2376831A
Cited
US2381396A
Cited
GB703811A
Cited
US2988240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |