Patent US3330894A successfully refreshed from Google Patents.
US3330894A
Expired / Lapsed
US
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Method for molding articles
Assignee: Individual
•
Filing: 1963-09-10
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Granted: 1967-07-11
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Expires: 1983-09-10
Abstract
No abstract record available.
Inventors
- 👤 Emery I Valyi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:07
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/02; B29C49/06; B29C2049/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN THE METHOD OF MOLDING A HOLLOW OBJECT OF ORGANIC PLASTIC MATERIAL IN A SYSTEM INCLUDING A BLOW CORE ON WHICH A PARISON IS INJECTED IN A PARISON DIE AND WHICH INCLUDES A BLOW MOLD HAVING A MOLD CAVITY SHAPED TO FORM THE OBJECT BY INTRODUCING THE BLOW CORE WITH THE PARISON THEREON INTO THE BLOW MOLD CAVITY AND EXPANDING THE PARISON INTO THE BLOW MOLD CAVITY BY INTRODUCING A FLUID UNDER PRESSURE THROUGH THE BLOW PASSAGE OF THE BLOW CORE, THE IMPROVEMENT WHICH COMPRISES WITHDRAWING THE BLOW CORE FROM THE BLOWN OBJECT IN THE BLOW MOLD AND PROVIDING A CLOSURE FOR THE MOLD CAVITY INCLUDING A PRESSURE SEAL AND INTRODUCING A FLUID UNDER PRESSURE THROUGH SAID CLOSURE FROM A SECOND PASSAGE INDEPENDENT OF SAID BLOW PASSAGE FOR MAINTAINING THE BLOWN OBJECT UNDER FLUID PRESSURE WHILE IN THE BLOW MOLD AND AFTER THE REMOVAL OF THE BLOW CORE THEREFROM.
Claim 2
Dependent Claim
149 words
IN THE METHOD OF MOLDING A HOLLOW OBJECT OF ORGANIC PLASTIC MATERIAL IN A SYSTEM INCLUDING A BLOW CORE ON WHICH A PARISON IS INJECTED IN A PARISON DIE AND WHICH INCLUDES A BLOW MOLD HAVING A MOLD CAVITY SHAPED TO FORM THE OBJECT BY INTRODUCING THE BLOW CORE WITH THE PARISON THEREON INTO THE BLOW MOLD CAVITY AND EXPANDING THE PARISON INTO THE BLOW MOLD CAVITY BY INTRODUCING A FLUID UNDER PRESSURE THROUGH THE BLOW PASSAGE OF THE BLOW CORE, THE IMPROVEMENT WHICH COMPRISES WITHDRAWING THE BLOW CORE FROM THE BLOWN OBJECT IN THE BLOW MOLD AND PROVIDING A CLOSURE FOR THE MOLD CAVITY INCLUDING A PRESSURE SEAL AND INTRODUCING A FLUID UNDER PRESSURE THROUGH SAID CLOSURE FROM A SECOND PASSAGE INDEPENDENT OF SAID BLOW PASSAGE FOR MAINTAINING THE BLOWN OBJECT UNDER FLUID PRESSURE WHILE IN THE BLOW MOLD AND AFTER THE REMOVAL OF THE BLOW CORE THEREFROM.
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |