US3676909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller
Assignee: Lenox Machine Co Inc
•
Filing: 1970-06-01
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Granted: 1972-07-18
•
Expires: 1990-06-01
Abstract
Abstract Inside a tubelike mantle a shaft is attached at the middle of the mantle and the shaft has roller bearings at both ends for rotating the mantle on a support or stand. The mantle is furthermore supported at one or several points between the point at which the shaft is attached to the mantle and the end of the mantle by supporting means mounted either inside the mantle on the shaft or outside the mantle on the support, stand, base or the like.
Inventors
- 👤 Jorma A K Tuomaala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:39
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/02; F16C13/022; F16C13/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
Improved roller of the type having a tubelike mantle, a shaft inside the mantle and attached to the middle thereof, and roller bearings at both ends of the shaft for supporting the shaft, and including: hydraulic supporting means at at least one point between the point at which the shaft is attached to the mantle and the end of the mantle, said hydraulic supporting means being mounted inside the mantle on the shaft and including an hydraulic piston radially movable with respect to the shaft.
Claim 2
Dependent Claim
85 words
Improved roller of the type having a tubelike mantle, a shaft inside the mantle and attached to the middle thereof, and roller bearings at both ends of the shaft for supporting the shaft, and including: hydraulic supporting means at at least one point between the point at which the shaft is attached to the mantle and the end of the mantle, said hydraulic supporting means being mounted inside the mantle on the shaft and including an hydraulic piston radially movable with respect to the shaft.
References Cited (Backward Citations)
US26219A
Cited
US41851A
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US1546408A
Cited
US1868860A
Cited
US2648122A
Cited
US2854700A
Cited
GB893426A
Cited
US3424651A
Cited
US3389450A
Cited
US3430319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |