Patent US4293970A successfully refreshed from Google Patents.
US4293970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt cleaning apparatus
Assignee: Individual
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Filing: 1979-06-28
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Granted: 1981-10-13
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Expires: 1999-06-28
Abstract
Abstract Disclosed is a cleaning apparatus for continuous, abrasive belts of essentially any dimension, which apparatus has a base having elongated belt supporting mandrel means mounted thereon, and belt drive roll means rotatably mounted on the base and having its rotational axis substantially parallel to the axis of the mandrel means, and wherein a first portion of the periphery of the mandrel means is movable substantially parallelly into close juxtaposition to the periphery of the drive roll means upon angular movement of the mandrel means relative to the drive roll means in order to provide for easy loading and unloading of the belts while providing positive belt driving force.
Inventors
- 👤 Robert C. Bencene
- 👤 Charles A. Granger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:45
CPC Classifications
B; B08; B08B; B08B1/00; B08B1/20; B08B2230/00; B08B2230/01
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
A cleaning apparatus for a continuous belt, comprising a base having elongated belt supporting mandrel means rotatably mounted thereon, said mandrel means having a plurality of belt engaging peripheral portions spaced from the rotational axis thereof, drive roll means for said continuous belt rotatably mounted on said base and having its rotational axis substantially parallel to the rotational axis of said mandrel means, belt cleaning means adjacent the periphery of said mandrel means and adapted to engage said belt, and a first one of said peripheral portions of said mandrel means being movable substantially parallelly into close juxtaposition to the periphery of said drive roll means upon rotative movement of said mandrel means.
Claim 2
Dependent Claim
113 words
A cleaning apparatus for a continuous belt, comprising a base having elongated belt supporting mandrel means rotatably mounted thereon, said mandrel means having a plurality of belt engaging peripheral portions spaced from the rotational axis thereof, drive roll means for said continuous belt rotatably mounted on said base and having its rotational axis substantially parallel to the rotational axis of said mandrel means, belt cleaning means adjacent the periphery of said mandrel means and adapted to engage said belt, and a first one of said peripheral portions of said mandrel means being movable substantially parallelly into close juxtaposition to the periphery of said drive roll means upon rotative movement of said mandrel means.
Claim 3
Dependent Claim
49 words
The apparatus of claim 1 wherein the axis of said mandrel means is eccentrically positioned with respect to portions of its periphery such that rotation of said mandrel means about its axis will change the radial dimension of said mandrel means in a given stationary plane through said axis.
Claim 4
Dependent Claim
29 words
The apparatus of claim 1 wherein said mandrel means comprises a plurality of individual, substantially parallel rollers rotatably mounted on a support which is rotatably mounted on said base.
Claim 5
Dependent Claim
48 words
The apparatus of claim 3 wherein said belt cleaning means comprises driven, rotatable brush means provided to contact said belt as it is pulled around said mandrel means, said brush means being driven in a direction opposite to the direction of travel of said belt through said apparatus.
Claim 6
Dependent Claim
59 words
The apparatus of claim 3 wherein said support is rotatably mounted on said base by means of a shaft and bearing assembly, and is provided with a locking mechanism for releaseably holding said mandrel in an angular position whereby a roller thereof is maintained in contact with said belt which is maintained in contact with said drive roll means.
Claim 7
Dependent Claim
20 words
The apparatus of claim 3 wherein means is provided to continually urge said drive roll means toward said mandrel means.
Claim 8
Dependent Claim
61 words
The apparatus of claim 1 provided with friction roll means mounted on said base and having its rotational axis substantially parallel to the axis of said mandrel means, and a second one of said peripheral portions of said mandrel means being movable substantially parallelly into close juxtaposition to the periphery of said friction roll means upon rotation of said mandrel means.
Claim 9
Dependent Claim
24 words
The apparatus of claim 7 wherein said first and second peripheral portions are individual rollers which move simultaneously with rotation of said mandrel means.
Claim 10
Dependent Claim
33 words
The apparatus of claim 8 wherein at least one additional of said peripheral portions moves with said first and second portions to move a belt into a working position at a cleaning station.
Claim 11
Dependent Claim
18 words
The apparatus of claim 1 wherein said mandrel means is rotatably supported at one end on said base.
References Cited (Backward Citations)
US2140439A
Cited
US2297107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-12 | 1985-04-13 | 1985-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-12 | 1989-04-13 | 1989-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-12 | 1993-04-13 | 1993-10-13 | $7700.00 | Window Closed / Lapsed |