US3122789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion die incorporating a hydraulically deformable orifice
Assignee: Eastman Kodak Co
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Filing: 1962-03-07
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Granted: 1964-03-03
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Expires: 1982-03-07
Abstract
No abstract record available.
Inventors
- 👤 Robert D Coffee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:09
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/31; B29C48/313; B29C48/03; B29C48/07; B29C48/08; B29K; B29K2995/00; B29K2995/0037; B29K2995/0072; B29K2995/0073; Y; Y10; Y10S; Y10S425/00; Y10S425/019
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
AN EXTRUSION DIE COMPRISING AN ORIFICE DEFINED BY FOUR WALLS AT LEAST ONE OF WHICH WALLS IS DEFORMABLE IN A DIRECTION NORMAL TO ITS SURFACE, A CAVITY DEFINED BY CONTAINMENT MEANS DISPOSED ADJACENT AND CONNECTED WITH SAID DEFORMABLE WALL OPPOSITE SAID ORIFICE, FLUID FILLING SAID CAVITY AND MEANS FOR EXERTING PRESSURE ON SAID FLUID WHEREBY THE PRESSURE OF SAID FLUID CAN BE INCREASED SO AS TO DEFORM SAID DEFORMABLE WALL AND ACCURATELY AFFECT MINUTE CHANGES IN THE SIZE OF SAID ORIFICE.
Claim 2
Dependent Claim
81 words
AN EXTRUSION DIE COMPRISING AN ORIFICE DEFINED BY FOUR WALLS AT LEAST ONE OF WHICH WALLS IS DEFORMABLE IN A DIRECTION NORMAL TO ITS SURFACE, A CAVITY DEFINED BY CONTAINMENT MEANS DISPOSED ADJACENT AND CONNECTED WITH SAID DEFORMABLE WALL OPPOSITE SAID ORIFICE, FLUID FILLING SAID CAVITY AND MEANS FOR EXERTING PRESSURE ON SAID FLUID WHEREBY THE PRESSURE OF SAID FLUID CAN BE INCREASED SO AS TO DEFORM SAID DEFORMABLE WALL AND ACCURATELY AFFECT MINUTE CHANGES IN THE SIZE OF SAID ORIFICE.
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |