US3332815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for continuously forming elongated hollow articles
Assignee: Calgon Corp
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Filing: 1964-06-15
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Granted: 1967-07-25
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Glenn G Havens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:44
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/8008; B29C53/805; B29C53/8058; B29C53/8016; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/52; B29C70/521; B29C70/525; B29C70/527
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
THE METHOD OF FORMING ELONGATED HOLLOW ARTICLES COMPRISING THE STEPS OF: ORIENTING A PLURALITY OF FIRST FIBERS CIRCUMFERENTIALLY ABOUT THE CIRCUMFERENCE OF A FORMING MEMBER IN PARALLEL RELATIONSHIP TO EACH OTHER AND TO THE LONGITUDINAL AXIS OF SAID MANDREL; MOVING SAID FIBERS RELATIVE TO SAID MANDREL AND ALONG SAID LONGITUDINAL AXIS; WINDING A PLURALITY OF SECOND FIBERS ABOUT SAID AXIS AND UPON SAID FIRST FIBERS; RELATIVELY SLOWLY ROTATING SAID MANDREL AND SAID FIRST FIBERS THEREON ABOUJT SAID AXIS AND IN A DIRECTION OPPOSITE THE DIRECTION OF SAID WINDING TO THEREBY MAINTAIN SAID FIRST FIBERS IN SAID RELATIONSHIP; AND BONDING CERTAIN OF SAID FIBERS TOGETHER IN ASSEMBLED RELATIONSHIP.
References Cited (Backward Citations)
US1932942A
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US2723705A
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US2760549A
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US3033729A
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US3068133A
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US3235429A
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US3216876A
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US3249481A
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |