US3270111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a hollow article
Assignee: Haldemann SA
•
Filing: 1961-09-29
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Granted: 1966-08-30
•
Expires: 1981-09-29
Abstract
No abstract record available.
Inventors
- 👤 Haldemann Gaston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:29
CPC Classifications
B; B29; B29D; B29D24/00; B29D24/002; B29D24/008; A; A63; A63C; A63C5/00; A63C5/12; B29C; B29C53/00; B29C53/56; B29C53/564; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/44; B29C70/446; B29C70/54; B29C70/56; B29D22/00; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B29K; B29K2105/00; B29K2105/06; B29L; B29L2031/00; B29L2031/52; B29L2031/5263; Y; Y10; Y10S; Y10S273/00; Y10S273/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A METHOD OF PRODUCING A HOLLOW ARTICLE CONSISTING OF THE STEPS OF PROVIDING INFLATABLE AIR CHAMBERS, INFLATING SAID CHAMBERS, WINDING ABOUT EACH OF SAID CHAMBERS A STRIP OF GLASS FIBER IMPREGNATED WITH THERMOSETTING MATERIAL TO OBTAIN A SLUG WHILE ARRANGING FOR THE LONGITUDINAL FIBERS OF SAID FABRIC O EXTEND PARALLEL TO THE AXIS OF THE AIR CHAMBERS, WRAPPING SAID SLUGS WITH A TAPE OF GLASS FIBER FABRIC ALSO IMPREGNATED WITH A THERMOSETTING MATERIAL WHILE ARRANGING FOR THE LONGITUDINAL FIBERS OF SAID FABRIC TO RUN PARALLEL TO THE AXIS OF THE SLUGS, DEFLATING THE INFLATED CHAMBERS OF THE WRAPPED SLUGS AND INSERTING THE ASSEMBLY INTO A MOLD AND STRONGLY COMPRESSING THEM AT THE POSITION WHERE THEY ENTER THE MOLD, INFLATING THE AIR CHAMBERS OF THE SLUGS AFTER THE SAME HAVE BEEN INSERTED INTO THE MOLD TO PROVIDE AN INNER FORCE FOR THE SLUGS AND URGE THE SAME INTO CONTACT WITH THE MOLD INNER WALL AND TO PRE-STRETCH SAID LONGITUDINAL FIBERS DURING MOLDING, THE WRAPPED SLUGS THAT HAVE BEEN DEFALTED AND INSERTED IN THE MOLD ARE ALSO COMPRESSED AT A POSITION ADJCACENT THEIR TIP END, AND FINALLY HEATING THE MOLD FOR HARDENING THE THERMOSETTING MATERIAL.
Claim 2
Independent Claim
193 words
A METHOD OF PRODUCING A HOLLOW ARTICLE CONSISTING OF THE STEPS OF PROVIDING INFLATABLE AIR CHAMBERS, INFLATING SAID CHAMBERS, WINDING ABOUT EACH OF SAID CHAMBERS A STRIP OF GLASS FIBER IMPREGNATED WITH THERMOSETTING MATERIAL TO OBTAIN A SLUG WHILE ARRANGING FOR THE LONGITUDINAL FIBERS OF SAID FABRIC O EXTEND PARALLEL TO THE AXIS OF THE AIR CHAMBERS, WRAPPING SAID SLUGS WITH A TAPE OF GLASS FIBER FABRIC ALSO IMPREGNATED WITH A THERMOSETTING MATERIAL WHILE ARRANGING FOR THE LONGITUDINAL FIBERS OF SAID FABRIC TO RUN PARALLEL TO THE AXIS OF THE SLUGS, DEFLATING THE INFLATED CHAMBERS OF THE WRAPPED SLUGS AND INSERTING THE ASSEMBLY INTO A MOLD AND STRONGLY COMPRESSING THEM AT THE POSITION WHERE THEY ENTER THE MOLD, INFLATING THE AIR CHAMBERS OF THE SLUGS AFTER THE SAME HAVE BEEN INSERTED INTO THE MOLD TO PROVIDE AN INNER FORCE FOR THE SLUGS AND URGE THE SAME INTO CONTACT WITH THE MOLD INNER WALL AND TO PRE-STRETCH SAID LONGITUDINAL FIBERS DURING MOLDING, THE WRAPPED SLUGS THAT HAVE BEEN DEFALTED AND INSERTED IN THE MOLD ARE ALSO COMPRESSED AT A POSITION ADJCACENT THEIR TIP END, AND FINALLY HEATING THE MOLD FOR HARDENING THE THERMOSETTING MATERIAL.
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |