Patent US2710987A successfully refreshed from Google Patents.
US2710987A
Expired / Lapsed
US
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Method and apparatus for forming laminated plastic articles
Assignee: OI Glass Inc
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Filing: 1954-04-21
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Granted: 1955-06-21
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Expires: 1974-04-21
Abstract
No abstract record available.
Inventors
- 👤 Orville B Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:54
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/16; B29C48/18; B29C48/21; B29C48/25; B29C48/30; B29C48/32; B29C48/335; B29C48/336; B29C2949/00; B29C2949/30; B29C2949/3032; B29C2949/3041; B29L; B29L2031/00; B29L2031/712; B29L2031/7158
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
77 words
IN THE METHOD OF FORMING HOLLOW PLASTIC ARTICLES, THE STEPS WHICH COMPRISE FORMING A NECK OF SAID ARTICLE FROM A SOURCE OF PLASTIC MATERIAL, FORMING A SECOND NECK COAXIAL WITH AND CONTIGUOUS TO SAID FIRST NECK FROM A SECOND SOURCE OF PLASTIC MATERIAL, SAID MATERIALS BEING IN A CONDITION OF PLASTICITY TO PERMIT EXPANSION AND SETTING IN PREDETERMINED FORM, SIMULTANEOUSLY EXTRUDING A LENGTH OF TUBING INTEGRAL WITH EACH NECK PORTION FROM ITS RESPECTIVE SOURCE OF PLASTIC MATERIAL.
Claim 2
Dependent Claim
77 words
IN THE METHOD OF FORMING HOLLOW PLASTIC ARTICLES, THE STEPS WHICH COMPRISE FORMING A NECK OF SAID ARTICLE FROM A SOURCE OF PLASTIC MATERIAL, FORMING A SECOND NECK COAXIAL WITH AND CONTIGUOUS TO SAID FIRST NECK FROM A SECOND SOURCE OF PLASTIC MATERIAL, SAID MATERIALS BEING IN A CONDITION OF PLASTICITY TO PERMIT EXPANSION AND SETTING IN PREDETERMINED FORM, SIMULTANEOUSLY EXTRUDING A LENGTH OF TUBING INTEGRAL WITH EACH NECK PORTION FROM ITS RESPECTIVE SOURCE OF PLASTIC MATERIAL.
Claim 3
Dependent Claim
85 words
IN AN APPARATUS FOR FORMING LAMINATED HOLLOW PLASTIC ARTICLES, AN EXTRUDER BODY HAVING CONCENTRIC ORIFICES THROUGH WHICH CONCENTRIC LENGTHS OF TUBING MAY BE SIMULTANEOUSLY EXTRUDED, A NECK MOLD MOVABLE AXIALLY INTO AND OUT OF CONTACT WITH THE EXTRUDER BODY AND OVERLYING THE ORIFICES, MEANS RECIPROCABLE WITHIN THE NECK MOLD AND MOVABLE INTO POSITION TO SEAL ONE OF SAID ORIFICES WHEN THE NECK MOLD IS IN CONTACT WITH THE EXTRUDER BODY THEREBY PERMITTING THE PLASTIC MATERIAL TO FLOW ONLY OUT OF THE OTHER OF SAID ORIFICES.
Claim 4
Dependent Claim
85 words
IN AN APPARATUS FOR FORMING LAMINATED HOLLOW PLASTIC ARTICLES, AN EXTRUDER BODY HAVING CONCENTRIC ORIFICES THROUGH WHICH CONCENTRIC LENGTHS OF TUBING MAY BE SIMULTANEOUSLY EXTRUDED, A NECK MOLD MOVABLE AXIALLY INTO AND OUT OF CONTACT WITH THE EXTRUDER BODY AND OVERLYING THE ORIFICES, MEANS RECIPROCABLE WITHIN THE NECK MOLD AND MOVABLE INTO POSITION TO SEAL ONE OF SAID ORIFICES WHEN THE NECK MOLD IS IN CONTACT WITH THE EXTRUDER BODY THEREBY PERMITTING THE PLASTIC MATERIAL TO FLOW ONLY OUT OF THE OTHER OF SAID ORIFICES.
References Cited (Backward Citations)
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US1770335A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |