US3293689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion die deckle
Assignee: Leesona Corp
•
Filing: 1964-05-04
•
Granted: 1966-12-27
•
Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 John J Chiselko
- 👤 James A Gibbons
- 👤 George N Helmstetter
- 👤 Perkins George Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:34
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/31; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A DIE HAVING AN ELONGATED SLOT FOR FORMING FILMS OR SHEETS OF FLOWABLE PLASTIC MATERIAL AND PROVIDED WITH BEARING SURFACES FOR A DECKLE BAR EACH EXTENDING OUTWARDLY FROM AND ALONG ONE SIDE EDGE OF SAID SLOT, A DECKLE BAR HAVING A SEALING FACE BRIDGING SAID SLOT AND IN SLIDABLE SEALING CONTACT WITH SAID BEARING SURFACES OF THE DIE, AND MEANS MOUNTING SAID DECKLE BAR ON SAID DIE FOR MOVEMENT LONGITUDINALLY OF SAID SLOT INCLUDING A TRACK ON THE DIE AT EACH SIDE OF AN PARALLEL TO SAID SLOT, A U-SHAPED DECKLE BAR CARRIER HAVING A BASE PORTION SUPPORTING THE DECKLE BAR AND ITS ARMS PROVIDED WITH INTURNED HANGER FLANGES EACH OF WHICH IS SLIDABLE ON ONE OF SAID TRACKS, A RACK ON EACH OF SAID FLANGES, AND TWO PINIONS JOURNALED ON A COMMON SHAFT ON SAID DIE AND EACH MESHING WITH ONE OF SAID RACKS.
Claim 2
Dependent Claim
145 words
A DIE HAVING AN ELONGATED SLOT FOR FORMING FILMS OR SHEETS OF FLOWABLE PLASTIC MATERIAL AND PROVIDED WITH BEARING SURFACES FOR A DECKLE BAR EACH EXTENDING OUTWARDLY FROM AND ALONG ONE SIDE EDGE OF SAID SLOT, A DECKLE BAR HAVING A SEALING FACE BRIDGING SAID SLOT AND IN SLIDABLE SEALING CONTACT WITH SAID BEARING SURFACES OF THE DIE, AND MEANS MOUNTING SAID DECKLE BAR ON SAID DIE FOR MOVEMENT LONGITUDINALLY OF SAID SLOT INCLUDING A TRACK ON THE DIE AT EACH SIDE OF AN PARALLEL TO SAID SLOT, A U-SHAPED DECKLE BAR CARRIER HAVING A BASE PORTION SUPPORTING THE DECKLE BAR AND ITS ARMS PROVIDED WITH INTURNED HANGER FLANGES EACH OF WHICH IS SLIDABLE ON ONE OF SAID TRACKS, A RACK ON EACH OF SAID FLANGES, AND TWO PINIONS JOURNALED ON A COMMON SHAFT ON SAID DIE AND EACH MESHING WITH ONE OF SAID RACKS.
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |