US3133659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure containing vessel
Assignee: Individual
•
Filing: 1960-07-11
•
Granted: 1964-05-19
•
Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Dobell Curzon
- 👤 Elliott J Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:53
CPC Classifications
F; F17; F17C; F17C1/00; F17C1/02; F17C1/04; F17C1/06; B; B21; B21D; B21D51/00; B21D51/16; B21D51/24; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/05; F17C2201/056; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/012; F17C2203/06; F17C2203/0602; F17C2203/0609; F17C2203/0612; F17C2203/0614; F17C2203/0624; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0308; F17C2205/0323; F17C2205/0388; F17C2205/0394; F17C2205/0397; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/227; F17C2209/228; F17C2209/23; F17C2209/232; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/03; F17C2223/036; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/012; F17C2260/017; F17C2270/00; F17C2270/07; F17C2270/0745
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A HOLLOW CYLINDRICAL BODY WHICH COMPRISES HELICALLY WOUND STRIP MATERIAL HAVING SUBSTANTIAL TENSILE STRENGTH AND A LARGE RATIO OF WIDTH TO THICKNESS, ARRANGED WITH THE WINDINGS THEREOF TIGHTLY WOUND HELICALLY UNDER DIFFERENTIAL TENSION ONE UPON THE OTHER IN OVERLAPPING RELATIONSHIP WITH THE OVERLAP LARGE ENOUGH TO CONSTITUTE IN THE RESULTING CYLINDRICAL BODY A WAL THICKNESS CONTAINING A PLURALITY OF THICKNESSES OF SAID STRIP MATERIAL WITH THE OUTER EDGE THEREOF RELATIVELY STRETCHED BY SAID DIFFERENTIAL TENSION TO ACCOMMODATE THE OVERLAP, AND BONDING MEANS PROVIDED AT THE INTERFACE BETWEEN THE WINDINGS FOR SECURING THEM TOGETHER, SAID BONDING MEANS PROVIDING SUFFICIENT SHEAR RESISTANCE TO ABSORB THE LONGITUDINAL FORCE IMPOSED UPON SAID WALL THICKNESS WHEN THE CYLINDRICAL BODY IS SUBJECTED TO TENSION IN THE LONGITUNDINAL DIRECTION.
Claim 2
Dependent Claim
122 words
A HOLLOW CYLINDRICAL BODY WHICH COMPRISES HELICALLY WOUND STRIP MATERIAL HAVING SUBSTANTIAL TENSILE STRENGTH AND A LARGE RATIO OF WIDTH TO THICKNESS, ARRANGED WITH THE WINDINGS THEREOF TIGHTLY WOUND HELICALLY UNDER DIFFERENTIAL TENSION ONE UPON THE OTHER IN OVERLAPPING RELATIONSHIP WITH THE OVERLAP LARGE ENOUGH TO CONSTITUTE IN THE RESULTING CYLINDRICAL BODY A WAL THICKNESS CONTAINING A PLURALITY OF THICKNESSES OF SAID STRIP MATERIAL WITH THE OUTER EDGE THEREOF RELATIVELY STRETCHED BY SAID DIFFERENTIAL TENSION TO ACCOMMODATE THE OVERLAP, AND BONDING MEANS PROVIDED AT THE INTERFACE BETWEEN THE WINDINGS FOR SECURING THEM TOGETHER, SAID BONDING MEANS PROVIDING SUFFICIENT SHEAR RESISTANCE TO ABSORB THE LONGITUDINAL FORCE IMPOSED UPON SAID WALL THICKNESS WHEN THE CYLINDRICAL BODY IS SUBJECTED TO TENSION IN THE LONGITUNDINAL DIRECTION.
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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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |