Patent GB575798A successfully refreshed from Google Patents.
US3084448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal treatments at high pressure
Assignee: Individual
•
Filing: 1959-10-20
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Granted: 1963-04-09
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Expires: 1979-10-20
Abstract
No abstract record available.
Inventors
- 👤 Dungler Julien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:07
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/101; D; D06; D06B; D06B3/00; D06B3/10; D06B3/20; D21; D21F; D21F5/00; Y; Y10; Y10S; Y10S159/00; Y10S159/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
A DEVICE FOR TREATING MATERIALS COMPRISING WALL MEANS DEFINING A CLOSED CHAMBER HAVING AN INLET AND AN OUTLET OPENING, AN UPPER CONVEYOR BAND OF SLIGHTLY SMALLER WIDTH THAN SAID INLET AND OUTLET OPENINGS TRAINED TO RUN INTO SAID INLET THROUGH SAID CHAMBER AND OUT SAID OUTLET, A LOWER CONVEYOR BAND OF SLIGHTLY SMALLER WIDTH THAN SAID INLET AND OUTLET OPENINGS TRAINED TO RUN THROUGH SAID CHAMBER AND OUT SAID OUTLET, MEANS FOR FEEDING MATERIAL TO BE TREATED BETWEEN SAID UPPER AND LOWER BANDS, MEANS FOR INTRODUCING A TREATMENT FLUID UNDER PRESSURE INTO SAID CHAMBER, AND FLEXIBLE MEANS DISPOSED ON THE INTERIOR OF SAID CHAMBER WALL MEANS ADJACENT SAID INLET AND OUTLET OPENINGS AND HAVING PORTIONS EXTENDING FROM SAID WALL MEANS INTO CONTACT WITH THE OUTER SURFACES OF SAID UPPER AND LOWER CONVEYOR WHEREBY THE PRESSURE DIFFERENCE BETWEEN THE INSIDE AND THE OUTSIDE OF SAID CHAMBER BIASES SAID FLEXIBLE MEANS INTO CONTACT WITH SAID CONVEYOR BANDS, SAID FLEXIBLE MEANS INCLUDING SEMI-RIGID SPRING MEMBERS CONNECTED TO SAID WALL MEANS ABOVE AND BELOW SAID INLET AND OUTLET AND EXTENDING DOWNWARDLY AND UPWARDLY, RESPECTIVELY, INTO CONTACT WITH SAID CONVEYOR BAND, AND A PLASTIC MEMBER OVERLYING SAID RESILIENT MEMBER AND HAVING AN OUTSTANDING PORTION EXTENDING THEREBEYOND AND INTO CONTACT WITH SAID CONVEYOR BAND.
Claim 2
Independent Claim
208 words
A DEVICE FOR TREATING MATERIALS COMPRISING WALL MEANS DEFINING A CLOSED CHAMBER HAVING AN INLET AND AN OUTLET OPENING, AN UPPER CONVEYOR BAND OF SLIGHTLY SMALLER WIDTH THAN SAID INLET AND OUTLET OPENINGS TRAINED TO RUN INTO SAID INLET THROUGH SAID CHAMBER AND OUT SAID OUTLET, A LOWER CONVEYOR BAND OF SLIGHTLY SMALLER WIDTH THAN SAID INLET AND OUTLET OPENINGS TRAINED TO RUN THROUGH SAID CHAMBER AND OUT SAID OUTLET, MEANS FOR FEEDING MATERIAL TO BE TREATED BETWEEN SAID UPPER AND LOWER BANDS, MEANS FOR INTRODUCING A TREATMENT FLUID UNDER PRESSURE INTO SAID CHAMBER, AND FLEXIBLE MEANS DISPOSED ON THE INTERIOR OF SAID CHAMBER WALL MEANS ADJACENT SAID INLET AND OUTLET OPENINGS AND HAVING PORTIONS EXTENDING FROM SAID WALL MEANS INTO CONTACT WITH THE OUTER SURFACES OF SAID UPPER AND LOWER CONVEYOR WHEREBY THE PRESSURE DIFFERENCE BETWEEN THE INSIDE AND THE OUTSIDE OF SAID CHAMBER BIASES SAID FLEXIBLE MEANS INTO CONTACT WITH SAID CONVEYOR BANDS, SAID FLEXIBLE MEANS INCLUDING SEMI-RIGID SPRING MEMBERS CONNECTED TO SAID WALL MEANS ABOVE AND BELOW SAID INLET AND OUTLET AND EXTENDING DOWNWARDLY AND UPWARDLY, RESPECTIVELY, INTO CONTACT WITH SAID CONVEYOR BAND, AND A PLASTIC MEMBER OVERLYING SAID RESILIENT MEMBER AND HAVING AN OUTSTANDING PORTION EXTENDING THEREBEYOND AND INTO CONTACT WITH SAID CONVEYOR BAND.
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |