US3985647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleated conveyor belt
Assignee: Continental Can Co Inc
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Filing: 1975-08-07
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Granted: 1976-10-12
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Expires: 1995-08-07
Abstract
Abstract An improved conveyor belt for use in a magnetic waste separator characterized by the provision of protective cleats mounted transverse the conveyor belt. The cleats are strategically positioned to protect the belt from abrasion caused by the sharp-edged metal fragments being processed. Further, the particular configuration and spacing of the cleats enhances tumbling or bouncing of the separated metal fragments which serves to reduce the amount of entrained nonmagnetic materials, thereby increasing separator efficiency.
Inventors
- 👤 Milbourn L. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:59
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
143 words
An improved belt member for use in a magnetic separating device of the type wherein a moving conveyor is interposed between a magnetic assembly and a waste aggregate comprising a mixture of magnetic and nonmagnetic materials, and wherein the magnets attract said magnetic materials, draw it from said mixture, and hold it in sliding contact with said moving belt member, said sliding contact resulting in severe scoring and abrading of said belt member; the improvement comprising a plurality of protective tumble-inducing cleats on the outer surface of said belt member, said belt member including a plurality of regularly spaced, outwardly projecting transverse sweep bars and said cleats being regularly spaced with respect to said sweep bars, said cleats being substantially rectangular in cross-section and lying transverse said belt member, and a cleat abutting each of said sweep bars on the downstream side thereof.
Claim 2
Dependent Claim
143 words
An improved belt member for use in a magnetic separating device of the type wherein a moving conveyor is interposed between a magnetic assembly and a waste aggregate comprising a mixture of magnetic and nonmagnetic materials, and wherein the magnets attract said magnetic materials, draw it from said mixture, and hold it in sliding contact with said moving belt member, said sliding contact resulting in severe scoring and abrading of said belt member; the improvement comprising a plurality of protective tumble-inducing cleats on the outer surface of said belt member, said belt member including a plurality of regularly spaced, outwardly projecting transverse sweep bars and said cleats being regularly spaced with respect to said sweep bars, said cleats being substantially rectangular in cross-section and lying transverse said belt member, and a cleat abutting each of said sweep bars on the downstream side thereof.
Claim 3
Dependent Claim
19 words
The invention of claim 1, wherein a cleat abuts each of said sweep bars on the downstream side thereof.
Claim 4
Dependent Claim
23 words
The invention of claim 1, wherein the height of said sweep bars is at least three-quarters the modal diameter of said magnetic materials.
Claim 5
Dependent Claim
19 words
The invention of claim 2, wherein the width of said cleats is between one-quarter and one-half said modal diameter.
Claim 6
Dependent Claim
14 words
The invention of claim 4, wherein said width is approximately one-third said modal diameter.
Claim 7
Dependent Claim
36 words
The invention of claim 1, wherein the space between two consecutive cleats, at least one of which does not abut one of said sweep bars, is substantially equal to the width of one of said cleats.
Claim 8
Dependent Claim
21 words
The invention of claim 1, wherein said cleats and said sweep bars terminate inwardly of the periphery of said belt member.
Claim 9
Dependent Claim
28 words
The invention of claim 7, wherein the distance between said periphery and said ends of said cleats and said sweep bars is at least one-third said modal diameter.
Claim 10
Dependent Claim
17 words
The invention of claim 8, wherein said cleats and sweep bars each comprise a single linear section.
Claim 11
Dependent Claim
17 words
The invention of claim 9, wherein the height of said cleats is substantially one-half the width thereof.
References Cited (Backward Citations)
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Cited
US553446A
Cited
US557121A
Cited
DE1128821B
Cited
US3672496A
Cited
US3901795A
Cited
US3809239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |