Patent US3227857A successfully refreshed from Google Patents.
US3227857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced roll
Assignee: EIDP Inc
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Filing: 1962-07-31
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Granted: 1966-01-04
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Expires: 1982-07-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter C Hill
- 👤 Winfield C Twitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:52
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0095; D; D02; D02J; D02J13/00; D02J13/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A ROTARY ROLL OF CYLINDRICAL OUTSIDE PROFILE FABRICATED FROM A CASTING OF ONE OF THE GROUP CONSISTING OF ALUMINUM AND ALUMINUM ALLOYS OF RELATIVELY HIGH HEAT CONDUCTIVITY PROVIDED WITH A GENERALLY CYLINDRICALLY BOUNDED UNITARY CIRCUFERENTIALLY FORMED STEEL CHANNELWAY COEXTENSIVE IN LENGTH WITH THE LENGTH OF SAID ROLL THROUGHOUT WHICH SUBSTANTIALLY UNIFORM TEMPERATURE MAINTENANCE IS DESIRED AND DISPOSED INTERNALLY OF SAID ROLL COAXIAL THEREWITH, SAID CHANNELWAY BEING PROVIDED WITH HEATING MEANS ADAPTED TO HEAT SAID ROLL BY CONDUCTION THROUGH THE WALLS OF SAID CHANNELWAY INTO THE MASS OF SAID ROLL WITHIN WHICH CHANNELWAY IS DISPOSED.
Claim 2
Dependent Claim
94 words
A ROTARY ROLL OF CYLINDRICAL OUTSIDE PROFILE FABRICATED FROM A CASTING OF ONE OF THE GROUP CONSISTING OF ALUMINUM AND ALUMINUM ALLOYS OF RELATIVELY HIGH HEAT CONDUCTIVITY PROVIDED WITH A GENERALLY CYLINDRICALLY BOUNDED UNITARY CIRCUFERENTIALLY FORMED STEEL CHANNELWAY COEXTENSIVE IN LENGTH WITH THE LENGTH OF SAID ROLL THROUGHOUT WHICH SUBSTANTIALLY UNIFORM TEMPERATURE MAINTENANCE IS DESIRED AND DISPOSED INTERNALLY OF SAID ROLL COAXIAL THEREWITH, SAID CHANNELWAY BEING PROVIDED WITH HEATING MEANS ADAPTED TO HEAT SAID ROLL BY CONDUCTION THROUGH THE WALLS OF SAID CHANNELWAY INTO THE MASS OF SAID ROLL WITHIN WHICH CHANNELWAY IS DISPOSED.
References Cited (Backward Citations)
US1435401A
Cited
US1675274A
Cited
US2146141A
Cited
US2466676A
Cited
US2577243A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |