US3305891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing hollow articles from a softened tubular blank of resinous material
Assignee: Individual
•
Filing: 1963-03-20
•
Granted: 1967-02-28
•
Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Nozaki Kenichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:02
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/58; B29C49/60; B29C49/28; B29C49/30; B29C49/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
AN APPARATUS FOR MANURFACTURING HOLLOW ARTICLES FROM A SOFTENED TUBULAR BLANK OF RESINOUS MATERIAL COMPRISING A ROTARY DISC, A PLURALITY OF SPLIT MOULDS MOUNTED ON THE PERIPHERY OF SAID ROTARY DISC, MEANS TO SEQUENTIALLY OPEN AND CLOSE SAID SPLIT MOULDS, MEANS TO FEED SAID SOFTENED TUBULAR BLANK INTO AN OPENED BLANK, MEANS TO ATTRACT A PORTION OF THE WALL OF A SECTION OF SAID TUBULAR BLANK WHICH IS CLAMPED BY AND ENCLOSED IN THE CLOSED MOULD SO AS TO RUPTURE SAID WALL PORTION, SAID MEANS INCLUDING A PAIR OF INNER AND OUTER CONCENTRIC TUBES EXTENDING FROM THE OUTSIDE TO THE INSIDE OF THE MOLD, THE INNER END OF THE INNER TUBE PROJECTING BEYOND THE INNER END OF THE OUTER TUBE, AND MEANS TO PROVIDE AIR SUCTION TO THE OUTER TUBE AND TO INTRODUCE COMPRESSED AIR INTO SAID TUBULAR BLANK THROUGH SAID INNER TUBE.
Claim 2
Independent Claim
143 words
AN APPARATUS FOR MANURFACTURING HOLLOW ARTICLES FROM A SOFTENED TUBULAR BLANK OF RESINOUS MATERIAL COMPRISING A ROTARY DISC, A PLURALITY OF SPLIT MOULDS MOUNTED ON THE PERIPHERY OF SAID ROTARY DISC, MEANS TO SEQUENTIALLY OPEN AND CLOSE SAID SPLIT MOULDS, MEANS TO FEED SAID SOFTENED TUBULAR BLANK INTO AN OPENED BLANK, MEANS TO ATTRACT A PORTION OF THE WALL OF A SECTION OF SAID TUBULAR BLANK WHICH IS CLAMPED BY AND ENCLOSED IN THE CLOSED MOULD SO AS TO RUPTURE SAID WALL PORTION, SAID MEANS INCLUDING A PAIR OF INNER AND OUTER CONCENTRIC TUBES EXTENDING FROM THE OUTSIDE TO THE INSIDE OF THE MOLD, THE INNER END OF THE INNER TUBE PROJECTING BEYOND THE INNER END OF THE OUTER TUBE, AND MEANS TO PROVIDE AIR SUCTION TO THE OUTER TUBE AND TO INTRODUCE COMPRESSED AIR INTO SAID TUBULAR BLANK THROUGH SAID INNER TUBE.
References Cited (Backward Citations)
US2579399A
Cited
US2959812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |