US3372075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an insulated storage tank
Assignee: Amercoat Corp
•
Filing: 1964-03-06
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Granted: 1968-03-05
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Expires: 1984-03-06
Abstract
No abstract record available.
Inventors
- 👤 Charles R Holt
- 👤 Ray A Madewell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:06
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0329; F17C2203/0333; F17C2203/0345; F17C2203/035; F17C2203/0375; F17C2203/0383; F17C2203/06; F17C2203/0602; F17C2203/0609; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0658; F17C2203/066; F17C2203/0663; F17C2203/067; F17C2209/00; F17C2209/21; F17C2209/2109; F17C2209/2154; F17C2209/2163; F17C2209/23; F17C2209/234; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/012; F17C2260/05; F17C2260/053; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
THE METHOD OF MAKING AN INSULATED STORAGE TANK USING SANDWICH CONSTRUCTION COMPRISING, HELICALLY WINDING A RESIN IMPREGNATED GLASS FIBER INNER SHELL INCLUDING A CYLINDRICAL SECTION AND AT LEAST OEN DOME SHAPED AND SECTION, CURING THE INNER SHELL, PREFORMING THE CORE OF INSULATING MATERIAL FOR CONTOURING OVER THE DOME SECTION, FORMING A SHORT CYLINDRICAL SECTION OF INSULATING MATERIAL SIZED TO FIT AROUND THE CYLIDRICAL SECTION OF THE INNER SHELL, BONDING THE SHORT CYLINDRICAL SECTION TO THE DOME SHAPED INSULATING MATERIAL SECTION, PLACING THE SHORT CYLINDRICAL SECTION TO THE DOME SHAPED INSULATING MATERIAL SECTION, PLACING THE SHORT CYLINDRICAL AND DOOMED SECTIONS OF INSULATED MATERIAL OVER THE INER SHELL AND ATTACHING THEM THERETO BY WINDING GLASS FIBERS AROUND THE CYLINDRICAL SECTION, CUTTING A DIAGONAL LINE ACROSS A RECTANGULAR SECTION OF INSULATING MATERIAL FORMING FIRST AND SECOND PIE SHAPED TRANSITION PIECES, PLACING EACH OF SAID PIE SHAPED TRANSITION PIECES ON THE INNER CYLINDRICAL SHELL AT EACH END, HELICALLY WRAPPING SEGMENTS OF INSULATING MATERIAL ABOUT THE INNER CYLINDRICAL SHELL AND SECURING THEM THERETO BY WRAPPING WITH GLASS FIBERS, HELICALLY WINDING A RESIN IMPREGNATED GLASS FIBER OUTER SHELL UNDER TENSION OVER THE INSULATION OF SAID CYLINDRICAL AND DOMED SECTIONS, AND CURING THE OUTER SHELL.
Claim 2
Independent Claim
198 words
THE METHOD OF MAKING AN INSULATED STORAGE TANK USING SANDWICH CONSTRUCTION COMPRISING, HELICALLY WINDING A RESIN IMPREGNATED GLASS FIBER INNER SHELL INCLUDING A CYLINDRICAL SECTION AND AT LEAST OEN DOME SHAPED AND SECTION, CURING THE INNER SHELL, PREFORMING THE CORE OF INSULATING MATERIAL FOR CONTOURING OVER THE DOME SECTION, FORMING A SHORT CYLINDRICAL SECTION OF INSULATING MATERIAL SIZED TO FIT AROUND THE CYLIDRICAL SECTION OF THE INNER SHELL, BONDING THE SHORT CYLINDRICAL SECTION TO THE DOME SHAPED INSULATING MATERIAL SECTION, PLACING THE SHORT CYLINDRICAL SECTION TO THE DOME SHAPED INSULATING MATERIAL SECTION, PLACING THE SHORT CYLINDRICAL AND DOOMED SECTIONS OF INSULATED MATERIAL OVER THE INER SHELL AND ATTACHING THEM THERETO BY WINDING GLASS FIBERS AROUND THE CYLINDRICAL SECTION, CUTTING A DIAGONAL LINE ACROSS A RECTANGULAR SECTION OF INSULATING MATERIAL FORMING FIRST AND SECOND PIE SHAPED TRANSITION PIECES, PLACING EACH OF SAID PIE SHAPED TRANSITION PIECES ON THE INNER CYLINDRICAL SHELL AT EACH END, HELICALLY WRAPPING SEGMENTS OF INSULATING MATERIAL ABOUT THE INNER CYLINDRICAL SHELL AND SECURING THEM THERETO BY WRAPPING WITH GLASS FIBERS, HELICALLY WINDING A RESIN IMPREGNATED GLASS FIBER OUTER SHELL UNDER TENSION OVER THE INSULATION OF SAID CYLINDRICAL AND DOMED SECTIONS, AND CURING THE OUTER SHELL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |