US2715751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming articles from plastic material
Assignee: OI Glass Inc
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Filing: 1951-10-20
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Granted: 1955-08-23
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Expires: 1971-10-20
Abstract
No abstract record available.
Inventors
- 👤 Weber Walter Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:54
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/02; B29C49/06; B29C49/061; B29C49/062; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B29C48/25; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C49/08; B29C49/16; B29C49/28; B29C49/30; B29C49/36; B29C2049/023; B29C2949/00; B29C2949/07; B29C2949/0715; B29C33/00; B29C33/20; B29C33/26; B29C49/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METHOD OF FORMING HOLLOW ARTICLES OF ORGANIC PLASTIC MATERIAL WHICH COMPRISES PLASTICIZING SAID MATERIAL, INJECTING SAID PLASTICIZED MATERIAL INTO A MOLD TO FORM A PORTION, PARTIALLY EXPANDING SAID PARISON IN A SECOND MOLD BY A CHARGE OF FLUID PRESSURE AND FINALLY EXPANDING SAID PARISON TO FINAL FORM IN A FINISHING MOLD UNDER THE ACTION OF FLUID UNDER PRESSURE OF MAINTAINING THE FLUID PRESSURE IN THE PARISON BETWEEN THE STEPS OF PARTIALLY EXPANDING AND FINALLY EXPANDING THE PARISON.
Claim 2
Independent Claim
122 words
AN APPARATUS FOR FORMING HOLLOW ARTICLES OF ORGANIC PLASTIC MATERIAL WHICH COMPRISES A FINISHING MOLD MOVABLE IN A CLOSED PATH, A NECK MOLD INDIVIDUAL THEREON, MEANS FOR OPENING AND CLOSING SAID FINISHING MOLD, MEANS FOR OPENING AND CLOSING SAID NECK MOLD, MEANS FOR INTERMITTENTLY MOVING SAID FINSIHING MOLD AND NECK MOLD ALONG THEIR PATH, AN INJECTION STATION ALONG THE PATH OF SAID FINSIHING MOLD AND NECK MOLD, A PARISON MOLD AT SAID INJECTION STATION, MEANS FOR PLASTICIZING AND INJECTING A PREDETERMINED QUANTITY OF PLASTIC MATERIAL INTO SAID PARISON MOLD, AN INTERMEDIATE MOLD FURTHER ALONG THE PATH OF SAID NECK MOLD, MEANS FOR OPENING AND CLOSING SAID INTERMEDIATE MOLD, AND MEANS FOR SUPPLYING AIR UNDER PRESSURE TO THE PARSION THROUGH THE NECK MOLD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |