US3114665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making lightweight pressure vessels of wound flexible strands
Assignee: Apex Fibre-Glass Products Inc
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Filing: 1960-05-27
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Granted: 1963-12-17
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Expires: 1980-05-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Wiltshire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:41
CPC Classifications
F; F17; F17C; F17C1/00; F17C1/16; B; B21; B21D; B21D51/00; B21D51/16; B21D51/24; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/80; B29C53/82; B29C53/821; B29C53/822; B29C70/00; B29C70/68; B29C70/86; B29C33/00; B29C33/44; B29C33/52; B29L; B29L2031/00; B29L2031/712; B29L2031/7154; B29L2031/7156; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2203/00; F17C2203/06; F17C2203/0634; F17C2203/0658; F17C2203/0663; F17C2203/0673; F17C2205/00; F17C2205/03; F17C2205/0388; F17C2205/0394; F17C2205/0397; F17C2209/00; F17C2209/21; F17C2209/2109; F17C2209/2154; Y; Y10; Y10S; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
THE METHOD OF MAKING A PRESSURE VESSEL WHICH COMPRISES SECURING A LOW MELTING POINT METAL CORE OF SPHERICAL SHAPE TO AN ARBOR BY MEANS OF A FITTING AT EACH END OF SAID ARBOR AND SAID CORE, APPLYING AN IMPERVIOUS RESILIENT FLEXIBLE RUBBER COVERING TO SAID CORE,SECURING SAID COVERING TO SAID FITTING ROTATING SAID CORE ON THE AXIS OF SAID ARBOR, COATING A STRAND OF GLASS FIBERS WITH A LIQUID RESIN, APPLYING SAID STRAND OF RESIN COATED GLASS FIBERS TO SAID RESILIENT COVERING WHILE ROTATING SAID CORE ABOUT SAID AXIS TO FORM WINDINGS LYING IN SUBSTATIALLY GREATG CIRCLE PATHS
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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) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |