US3080608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic material extrusion apparatus
Assignee: Individual
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Filing: 1961-03-30
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Granted: 1963-03-12
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Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 Jurian W Van Riper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:04
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/31; B29C48/313; B29C48/03; B29C48/07; B29C48/08; B29C48/255; B29C48/2556
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
APPARATUS FOR EXTRUDING PLASTIC MATERIAL COMPRISING AN EXTRUSION HEAD HAVING A PLASTIC MATERIAL CONDUCTING PASSAGE THEREIN, THE HEAD BEING ADAPTED TO BE CONNECTED TO AN EXTRUSION MACHINE HAVING MEANS DELIVERING PLASTIC MATERIAL FORWARDLY UNDER PRESSURE TO SAID PASSAGE IN THE HEAD, AND A DIE MOUNTED ON THE HEAD, SAID DIE COMPRISING A DIE ELEMENT HAVING AN INNER SURFACE GENERALLY FORMING A PROLONGATION OF AN INNER SURFACE OF THE PASSAGE, THE DIE ELEMENT HAVING A STRAIGHT REAR EDGE AT THE SURFACE OF THE PASSAGE, THE EDGE OF THE HEAD CONFRONTING SAID EDGE OF THE DIE ELEMENT BEING STRAIGHT, THE SAID TWO EDGES BEING ALINGNED AND IN PLASTIC MATERIAL-TIGHT ENGAGEMENT WITH EACH OTHER, AND MEANS ANGULARLY TO ADJUST THE DIE ELEMENT ABOUT THE SAID EDGE OF THE HEAD WHEREBY TO CHANGE THE THICKNESS OF SECTION OF THE PLASTIC MATERIAL TRAVELLING FORWARDLY PAST THE DIE ELEMENT.
Claim 2
Dependent Claim
143 words
APPARATUS FOR EXTRUDING PLASTIC MATERIAL COMPRISING AN EXTRUSION HEAD HAVING A PLASTIC MATERIAL CONDUCTING PASSAGE THEREIN, THE HEAD BEING ADAPTED TO BE CONNECTED TO AN EXTRUSION MACHINE HAVING MEANS DELIVERING PLASTIC MATERIAL FORWARDLY UNDER PRESSURE TO SAID PASSAGE IN THE HEAD, AND A DIE MOUNTED ON THE HEAD, SAID DIE COMPRISING A DIE ELEMENT HAVING AN INNER SURFACE GENERALLY FORMING A PROLONGATION OF AN INNER SURFACE OF THE PASSAGE, THE DIE ELEMENT HAVING A STRAIGHT REAR EDGE AT THE SURFACE OF THE PASSAGE, THE EDGE OF THE HEAD CONFRONTING SAID EDGE OF THE DIE ELEMENT BEING STRAIGHT, THE SAID TWO EDGES BEING ALINGNED AND IN PLASTIC MATERIAL-TIGHT ENGAGEMENT WITH EACH OTHER, AND MEANS ANGULARLY TO ADJUST THE DIE ELEMENT ABOUT THE SAID EDGE OF THE HEAD WHEREBY TO CHANGE THE THICKNESS OF SECTION OF THE PLASTIC MATERIAL TRAVELLING FORWARDLY PAST THE DIE ELEMENT.
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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |