US3070872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller or bowl for providing a uniform pressure in the pressing of flat material, e. g., textile woven fabric runs
Assignee: Maschinenfabrik Friedrich Haas GmbH and Co
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Filing: 1960-01-19
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Granted: 1963-01-01
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Expires: 1980-01-19
Abstract
No abstract record available.
Inventors
- 👤 Ulrichs Fritz
- 👤 Heitkamp Karl-Heinz
- 👤 Kohne Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:30
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/02; F16C13/022; F16C13/024; F16C13/026; D; D06; D06C; D06C15/00; D06C15/08; F16C2340/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A ROLLER FOR PRESSING FLAT MATERIAL SAID ROLLER HAVING A CYLINDRICAL ROLLER SHELL, A CYLINDRICAL CORE MEMBER WITHIN SAID SHELL AND SECURED THERETO TO ROTATE THEREWITH, SAID CORE HAVING A DIAMETER LESS THAN THE INTERIOR DIAMETER OF SAID ROLLER SHELL WHEREBY A CYLINDRICAL SPACE IS PROVIDED BETWEEN SAID CORE AND SAID ROLLER SHELL, MEANS DIVIDING SAID SPACE INTO A PLURALITY OF CHAMBERS WHICH EXTEND FROM ONE END TO THE OTHER OF THE ROLLER SHELL, SAID CHAMBERS EACH BEING FILLED WITH A LIQUID PRESSURE MEDIUM, MEANS TO ROTATE THE ROLLER, AND MEANS TO PLACE THE PRESSURE MEDIUM IN EACH CHAMBER UNDER AN INCREASED PRESSURE AS SAID CHAMBER IS MOVED BY THE ROTATION OF THE ROLLER INTO AND THROUGH THE POINT WHERE THE ROLLER SHELL IS APPLYING PRESSURE TO THE FLAT MATERIAL.
Claim 2
Dependent Claim
130 words
A ROLLER FOR PRESSING FLAT MATERIAL SAID ROLLER HAVING A CYLINDRICAL ROLLER SHELL, A CYLINDRICAL CORE MEMBER WITHIN SAID SHELL AND SECURED THERETO TO ROTATE THEREWITH, SAID CORE HAVING A DIAMETER LESS THAN THE INTERIOR DIAMETER OF SAID ROLLER SHELL WHEREBY A CYLINDRICAL SPACE IS PROVIDED BETWEEN SAID CORE AND SAID ROLLER SHELL, MEANS DIVIDING SAID SPACE INTO A PLURALITY OF CHAMBERS WHICH EXTEND FROM ONE END TO THE OTHER OF THE ROLLER SHELL, SAID CHAMBERS EACH BEING FILLED WITH A LIQUID PRESSURE MEDIUM, MEANS TO ROTATE THE ROLLER, AND MEANS TO PLACE THE PRESSURE MEDIUM IN EACH CHAMBER UNDER AN INCREASED PRESSURE AS SAID CHAMBER IS MOVED BY THE ROTATION OF THE ROLLER INTO AND THROUGH THE POINT WHERE THE ROLLER SHELL IS APPLYING PRESSURE TO THE FLAT MATERIAL.
References Cited (Backward Citations)
US2970339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |