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US3662048A
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Control of wall thickness of irregularly shaped blow molded articles
Assignee: Phillips Petroleum Co
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Filing: 1969-11-13
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Granted: 1972-05-09
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Expires: 1989-11-13
Abstract
Abstract IRREGULARLY SHAPED BLOW MOLDED ARTICLES SUCH AS BOTTLES HAVING A GENERALLY FLAT CONFIGURATION ARE PRODUCED HAVING A MORE UNIFORM WALL THICKNESS BY PROVIDING A THIN FILM OF GASEOUS FLUID BETWEEN AN EXJPANDING PARISON AND THE FIRST PORTION OF THE MOLD WALL TO BE CONTACTED AND/OR PROVIDING A GASEOUS FLUID JET TO COOL THE PORTION OF THE PARISON WHICH EXPANDING TOWARD THE SIDE WALLS AT THE END OF THE LONGER AXIS OF THE MOLD.
Inventors
- 👤 Edward W Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:08
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/64; B29C49/6409; B29C49/6436; B29C49/46; B29C33/00; B29C33/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |