Patent EP0186947A1 successfully refreshed from Google Patents.
US3086249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing composite plastic articles
Assignee: OI Glass Inc
•
Filing: 1959-12-12
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Granted: 1963-04-23
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Expires: 1979-12-12
Abstract
No abstract record available.
Inventors
- 👤 John R Nelson
- 👤 Leonard D Soubier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:23
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/071; B29C2949/00; B29C2949/30; B29C2949/3032; B29C2949/3041; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B29L; B29L2031/00; B29L2031/712; B29L2031/7158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
THE METHOD OF FORMING A HOLLOW PLASTIC ARTICLE HAVING A CLOSURE INTEGRAL WITH THE NECK THEREOF COMPRISING CLOSING A PARTIBLE NECK AND CLOSURE DEFINING MOLD, BRINGING AN EXTRUSION HEAT HAVING AN ANNULAR ORIFICE INTO COAXIAL ALIGNMENNT WITH THE NECK DEFINING PORTION OF SAID MOLD, EXTRUDING A FIRST HEATER THERMOPLASTIC MATERIAL FROM SAID HEAD INTO AND PARTIALLY FILLING SAID NECK DEFINING PORTION OF SAID PARTIBLE MOLD UNDER PREDETERMINED PRESSURE, INTERRUPTING SAID EXTRUSION PRESSURE, BRINGING AN INJECTION HEAD INTO HORIZONTAL ALIGNMENT WITH THE CLOSURE DEFINING PORTION OF SAID PARTIBLE MOLD AND SPACED FROM SAID EXTRIUSION HEAD, INJECTING A SECOND HEATED THERMOPLASTIC MATERIAL THROUGH THE COMMUNICATING CLOSURE DEFINING PORTION OF THE MOLD INTO AND FILLING THE REMAINDER OF THE NECK DEFINING MOLD, REESTABLISHING SAID EXTRUSION PRESSURE, MOVING, SAID MOLD IN A VERTICAL DIRECTION AWAY FROM SAID EXTRUSION HEAD AND INJECTION HEAD, SIMULTANEOUS THEREWITH CONTAINING THE EXTRUSION OF SAID FIRST THERMOPLASTIC MATERIAL TO FORM A TUBE INTEGRAL WITH TTHE MOLDED NECK PORTION, AND EXPANDING SAID TUBE WITHIN A MOLD CAVITY TO FORM A HOLLOW BODY THEREOF INTEGRAL WITH THE NECK
Claim 2
Independent Claim
176 words
THE METHOD OF FORMING A HOLLOW PLASTIC ARTICLE HAVING A CLOSURE INTEGRAL WITH THE NECK THEREOF COMPRISING CLOSING A PARTIBLE NECK AND CLOSURE DEFINING MOLD, BRINGING AN EXTRUSION HEAT HAVING AN ANNULAR ORIFICE INTO COAXIAL ALIGNMENNT WITH THE NECK DEFINING PORTION OF SAID MOLD, EXTRUDING A FIRST HEATER THERMOPLASTIC MATERIAL FROM SAID HEAD INTO AND PARTIALLY FILLING SAID NECK DEFINING PORTION OF SAID PARTIBLE MOLD UNDER PREDETERMINED PRESSURE, INTERRUPTING SAID EXTRUSION PRESSURE, BRINGING AN INJECTION HEAD INTO HORIZONTAL ALIGNMENT WITH THE CLOSURE DEFINING PORTION OF SAID PARTIBLE MOLD AND SPACED FROM SAID EXTRIUSION HEAD, INJECTING A SECOND HEATED THERMOPLASTIC MATERIAL THROUGH THE COMMUNICATING CLOSURE DEFINING PORTION OF THE MOLD INTO AND FILLING THE REMAINDER OF THE NECK DEFINING MOLD, REESTABLISHING SAID EXTRUSION PRESSURE, MOVING, SAID MOLD IN A VERTICAL DIRECTION AWAY FROM SAID EXTRUSION HEAD AND INJECTION HEAD, SIMULTANEOUS THEREWITH CONTAINING THE EXTRUSION OF SAID FIRST THERMOPLASTIC MATERIAL TO FORM A TUBE INTEGRAL WITH TTHE MOLDED NECK PORTION, AND EXPANDING SAID TUBE WITHIN A MOLD CAVITY TO FORM A HOLLOW BODY THEREOF INTEGRAL WITH THE NECK
References Cited (Backward Citations)
US2432870A
Cited
GB606972A
Cited
US2562523A
Cited
US2544140A
Cited
US2626647A
Cited
US2673374A
Cited
US2750625A
Cited
US2655968A
Cited
FR62145E
Cited
US2781551A
Cited
US2936481A
Cited
US2710987A
Cited
US2878520A
Cited
US2713369A
Cited
US2911673A
Cited
US2830721A
Cited
US2982993A
Cited
FR1159247A
Cited
US2936489A
Cited
US2836319A
Cited
US2980955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |