US3308510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film extrusion mill
Assignee: Individual
•
Filing: 1965-07-02
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Granted: 1967-03-14
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Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 Gabbrielli Ernesto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:19
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/465; B29C48/03; B29C48/07; B29C48/08; B29C48/30; B29C48/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
IN A PRESSURE SHAPING APPARATUS, IN COMBINATION: (A) A SUPPORT; (B) A ROLL MOUNTED ON SAID SUPPORT FOR ROTATION ABOUT AN AXIS; (C) A SHELL SECURED ON SAID SUPPORT AGAINST ROTATION AND ENVELOPING A PORTION OF SAID ROLL, (1) RESPECTIVE OPPOSITE FACES OF SAID ROLL AND OF SAID SHELL DEFINING THEREBETWEEN A CIRCUMFERENTIALLY EXTENDING CHAMBER HAVING TWO CIRCUMFERENTIALLY TERMINAL PORTIONS, (2) THE SPACING OF SAID SHELL AND OF SAID ROLL DETERMINING THE WIDTH OF SAID CHAMBER; (D) AXIALLY EXTENDING BAFFLE MEANS MOUNTED ON SAID SHELL IN SAID CHAMBER BETWEEN THE TERMINAL PORTIONS THEREOF FOR MOVEMENT TOWARD AND AWAY FROM SAID ROLL, SAID BAFFLE MEANS CIRCUMFERENTIALLY DIVIDING SAID CHAMBER INTO TWO OR MORE COMPARTMENTS, SAID BAFFLE MEANS INCLUDING (1) AN AXIALLY ELONGATED MEMBER PARTLY RECEIVED IN AN AXIALLY ELONGATED GROOVE IN SAID FACE OF THE SHELL, AND (2) ACTUATING MEANS FOR ACTUATING MOVEMENT OF SAID BAFFLE MEMBER OUTWARD OF SAID GROOVE AND TOWARD SAID FACE OF SAID ROLL AGAINST THE PRESSURE OF A MATERIAL IN SAID CHAMBER; (E) FEED MEANS FOR FEEDING A MATERIAL TO BE SHAPED TO ONE OF SAID TERMINAL PORTIONS; AND (F) A SHAPING DIE AT THE OTHER TERMINAL PORTION.
Claim 2
Dependent Claim
192 words
IN A PRESSURE SHAPING APPARATUS, IN COMBINATION: (A) A SUPPORT; (B) A ROLL MOUNTED ON SAID SUPPORT FOR ROTATION ABOUT AN AXIS; (C) A SHELL SECURED ON SAID SUPPORT AGAINST ROTATION AND ENVELOPING A PORTION OF SAID ROLL, (1) RESPECTIVE OPPOSITE FACES OF SAID ROLL AND OF SAID SHELL DEFINING THEREBETWEEN A CIRCUMFERENTIALLY EXTENDING CHAMBER HAVING TWO CIRCUMFERENTIALLY TERMINAL PORTIONS, (2) THE SPACING OF SAID SHELL AND OF SAID ROLL DETERMINING THE WIDTH OF SAID CHAMBER; (D) AXIALLY EXTENDING BAFFLE MEANS MOUNTED ON SAID SHELL IN SAID CHAMBER BETWEEN THE TERMINAL PORTIONS THEREOF FOR MOVEMENT TOWARD AND AWAY FROM SAID ROLL, SAID BAFFLE MEANS CIRCUMFERENTIALLY DIVIDING SAID CHAMBER INTO TWO OR MORE COMPARTMENTS, SAID BAFFLE MEANS INCLUDING (1) AN AXIALLY ELONGATED MEMBER PARTLY RECEIVED IN AN AXIALLY ELONGATED GROOVE IN SAID FACE OF THE SHELL, AND (2) ACTUATING MEANS FOR ACTUATING MOVEMENT OF SAID BAFFLE MEMBER OUTWARD OF SAID GROOVE AND TOWARD SAID FACE OF SAID ROLL AGAINST THE PRESSURE OF A MATERIAL IN SAID CHAMBER; (E) FEED MEANS FOR FEEDING A MATERIAL TO BE SHAPED TO ONE OF SAID TERMINAL PORTIONS; AND (F) A SHAPING DIE AT THE OTHER TERMINAL PORTION.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |