US3837490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable drum type scrubber for stones, rocks, gravel, and the like
Assignee: Barber Greene Co
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Filing: 1973-12-03
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Granted: 1974-09-24
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Expires: 1993-12-03
Abstract
Abstract A rotary washer for crushed stone and the like and for scrubbing the stones to eliminate clay, dirt and soft stones and of the type having a hollow rotary drum which is rotated about a generally horizontal axis. The drum is rotatably supported by rubber tire wheel assemblies and in such a manner that the tires can be individually removed for repair, replacement or the like and without dismantling all of the other wheel assemblies or other parts of the rotary mounting means. The scrubber also includes double tapered roller anti-friction bearing assemblies of the pre-seal type and which are used to rotatably support the shafts on which the rubber tire wheel assemblies are mounted.
Inventors
- 👤 C Driebel
- 👤 R Dediemar
- 👤 L Schuman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:54
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/48; B03B5/56
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
191 words
A scrubber for washing gravel, rock or the like and comprising, a rotary, general horizontal drum through which the material is passed from one end to the other while being processed, a rubber tire drive assembly for rotatably mounting said drum and comprising a shaft rotatably mounted along said drum and in parallelism therewith, an elongated tire hub fixed to said shaft for rotation therewith, said hub having a radially extending first flange formed integrally therewith, a first rubber tire wheel assembly detachably mounted on said first flange, said hub also having an integral second flange and axially spaced from said first flange, said second flange being of shorter radial dimension than said first flange, and a segmental hub ring detachably secured to said second flange, and a second rubber tire wheel assembly detachably secured to said hub ring, the outermost radial dimension of said second flange being less than the internal radial dimension of said first rubber tire wheel assembly whereby when said segmental hub ring is removed from said second flange, said first tire wheel assembly can be moved axially over said second flange for removal from said shaft.
Claim 2
Dependent Claim
191 words
A scrubber for washing gravel, rock or the like and comprising, a rotary, general horizontal drum through which the material is passed from one end to the other while being processed, a rubber tire drive assembly for rotatably mounting said drum and comprising a shaft rotatably mounted along said drum and in parallelism therewith, an elongated tire hub fixed to said shaft for rotation therewith, said hub having a radially extending first flange formed integrally therewith, a first rubber tire wheel assembly detachably mounted on said first flange, said hub also having an integral second flange and axially spaced from said first flange, said second flange being of shorter radial dimension than said first flange, and a segmental hub ring detachably secured to said second flange, and a second rubber tire wheel assembly detachably secured to said hub ring, the outermost radial dimension of said second flange being less than the internal radial dimension of said first rubber tire wheel assembly whereby when said segmental hub ring is removed from said second flange, said first tire wheel assembly can be moved axially over said second flange for removal from said shaft.
Claim 3
Dependent Claim
46 words
The scrubber set forth in claim 1 including a rigid base frame, and a self-contained, pre-assembled, pre-set and pre-lubricated sealed anti-friction bearing assembly of the double roller type for rotatably mounting said shaft, and mounting plates for removably mounting said bearing assembly on said base frame.
Claim 4
Dependent Claim
39 words
The scrubber set forth in claim 2 further characterized in that said mounting plates include a plate having a generally upwardly facing recess, and a generally semi-circular bearing adaptor mounted in said recess for receiving said anti-friction bearing assembly.
Claim 5
Dependent Claim
79 words
The scrubber set forth in claim 2 further characterized in that said bearing assembly includes a pair of opposed tapered roller assemblies each having an inner cage mounted around said shaft and a common outer race embracing said pair of opposed roller assemblies, a wear ring located at each of opposite ends of said outer race for abutting thereagainst, and an end cap located at the outer end of said rings for holding said bearing assembly in assembled relationship.
References Cited (Backward Citations)
DE1049321B
Cited
US3014315A
Cited
US2080875A
Cited
US2296851A
Cited
US2751959A
Cited
US2964185A
Cited
FR1222234A
Cited
US3174624A
Cited
US3213703A
Cited
US3708001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |