Patent US3117342A successfully refreshed from Google Patents.
US3117342A
Expired / Lapsed
US
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Film extrusion apparatus
Assignee: FMC Corp
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Filing: 1961-03-07
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Granted: 1964-01-14
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Expires: 1981-03-07
Abstract
No abstract record available.
Inventors
- 👤 Koppehele Hugo Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
FILM EXTRUSION APPARATUS INCLUDING MEANS FOR DELIVERING A FLOWABLE FILM-FORMING MATERIAL, AN EXTRUSION BLCOK HAVING A SERIES OF CLOSELY SPACED ORIFICES FOR SHAPING THE DELIVERED FILM-FORMING MATERIAL UNDER PRESSURE INTO A PLURALITY OF INDIVIDUAL STREAMS DISPOSED IN SIDE-BY-SIDE RELATIONSHIP, MEANS FOR INDEPENDENTLY CONTROLLING THE FLOW OF FILM-FORMING MATERIAL THROUGH THE INDIVIDUAL ORIFICES, AND MEANS DEFINING AN OUTLET FROM THE APPARATUS POSITIONED TO BE ENGAGED BY THE PLURALITY OF STREAMS OF FILMFORMING MATERIAL AS THEY EXPANDED UPON LEAVING SAID EXTRUSION ORIFICES AND THEREBY BECOME BLENDED TOGETHER INTO A SINGLE FLAT STREAM HAVING SMOOTH OPPOSITE SURFACES.
Claim 2
Dependent Claim
94 words
FILM EXTRUSION APPARATUS INCLUDING MEANS FOR DELIVERING A FLOWABLE FILM-FORMING MATERIAL, AN EXTRUSION BLCOK HAVING A SERIES OF CLOSELY SPACED ORIFICES FOR SHAPING THE DELIVERED FILM-FORMING MATERIAL UNDER PRESSURE INTO A PLURALITY OF INDIVIDUAL STREAMS DISPOSED IN SIDE-BY-SIDE RELATIONSHIP, MEANS FOR INDEPENDENTLY CONTROLLING THE FLOW OF FILM-FORMING MATERIAL THROUGH THE INDIVIDUAL ORIFICES, AND MEANS DEFINING AN OUTLET FROM THE APPARATUS POSITIONED TO BE ENGAGED BY THE PLURALITY OF STREAMS OF FILMFORMING MATERIAL AS THEY EXPANDED UPON LEAVING SAID EXTRUSION ORIFICES AND THEREBY BECOME BLENDED TOGETHER INTO A SINGLE FLAT STREAM HAVING SMOOTH OPPOSITE SURFACES.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |