Patent US3847260A successfully refreshed from Google Patents.
US3847260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer belt roller
Assignee: Individual
•
Filing: 1973-07-09
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Granted: 1974-11-12
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Expires: 1993-07-09
Abstract
Abstract A cylindrical roller rotatably supported on a stationary shaft and used as an idler in a conveyer belt arrangement, the roller including an end bearing supported relatively thick cylinder of a ceramic material with a very hard and smooth outer surface for contacting the conveyer belt, the roller being in the form of either a single elongated ceramic cylinder supported at its ends by end bearings, or a single elongated ceramic cylinder mounted on an end bearing supported steel sleeve, or a plurality of spaced relatively shorter elongated ceramic segments mounted on an end bearing supported steel sleeve or tube.
Inventors
- 👤 A Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:13
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; B65G39/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
An endless conveyer belt roller, comprising: an elongated roller shaft having supportable shaft ends; end bearings mounted on said roller shaft adjacent said shaft ends; an elongated metallic tube mounted on said end bearings to rotate about the longitudinal axis of said roller shaft; a relatively thick cylinder of solid ceramic material with an inner cylindrical surface and an endless belt-supporting glazed outer cylindrical surface disposed coaxially about said roller shaft; and mounting means including a resilient sleeve with a pressure deformable ribbed inner surface press fit between said tube and said inner cylindrical surface of said cylinder of solid ceramic material for absorbing shock energy exerted on said cylinder of solid ceramic material.
Claim 2
Dependent Claim
114 words
An endless conveyer belt roller, comprising: an elongated roller shaft having supportable shaft ends; end bearings mounted on said roller shaft adjacent said shaft ends; an elongated metallic tube mounted on said end bearings to rotate about the longitudinal axis of said roller shaft; a relatively thick cylinder of solid ceramic material with an inner cylindrical surface and an endless belt-supporting glazed outer cylindrical surface disposed coaxially about said roller shaft; and mounting means including a resilient sleeve with a pressure deformable ribbed inner surface press fit between said tube and said inner cylindrical surface of said cylinder of solid ceramic material for absorbing shock energy exerted on said cylinder of solid ceramic material.
Claim 3
Dependent Claim
38 words
The endleSs conveyer belt roller according to claim 1, wherein a plurality of said cylinders of solid ceramic material in the form of spaced cylindrical roller segments are mounted on said tube by means of said mounting means.
Claim 4
Dependent Claim
50 words
The endless conveyer belt roller according to claim 2, wherein said ribbed inner surface includes a plurality of spaced apart rib portions of said sleeve, said rib portions being parallel to the axis of said roller segments and resiliently deformed under compressive loads between said tube and said roller segments.
Claim 5
Dependent Claim
43 words
The endless conveyer belt roller according to claim 2, wherein said resilient sleeve is extruded from plastic material and has an initial outer peripheral surface diameter greater than the inside diameter of said inner cylindrical surface of said cylinder of solid ceramic material.
References Cited (Backward Citations)
US1394684A
Cited
US2644575A
Cited
FR1099897A
Cited
GB844210A
Cited
GB1042987A
Cited
US3462058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |