Patent US3670870A successfully refreshed from Google Patents.
US3670870A
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US
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Conveyor belt structure
Assignee: McDowell-Wellman Engineering Co
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Filing: 1971-03-15
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Granted: 1972-06-20
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Expires: 1991-03-15
Abstract
Abstract There is provided an endless belt for use in an apparatus capable of performing the operations of stacking and reclaiming bulk material and characterized by a wire cable-reinforced rubber belt having upstanding rigid flights anchored thereto in a manner to utilize the wire cable as a supporting and securing member for the flights. The belts may be either troughed or flat. Lateral stabilizing means may desirably be associated with the flights.
Inventors
- 👤 Edward E Cheek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:30
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/42; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
An endless stacker-reclaimer belt comprising in combination: a. an endless fabric-reinforced rubber belt having a plurality of transversely spaced longitudinally extending reinforcing wire ropes embedded therein; b. a plurality of upstanding generally cup-shaped rigid flights disposed at intervals along said belt and projecting outwardly therefrom; and c. clamping means coacting at laterally spaced points between each of said flights and correspondingly spaced wire ropes in said belt to secure said flights to said belt.
Claim 2
Dependent Claim
45 words
An endless stacker-reclaimer belt in accordance with claim 1 wherein the clamping means are disposed inwardly of the marginal edges of the belt, and the belt-engaging marginal edges of each flight diverge upwardly and outwardly from said clamping means to permit troughing of the belt.
Claim 3
Dependent Claim
35 words
An endless stacker-reclaimer belt in accordance with claim 1 wherein the clamping means are disposed at the marginal edges of the belt and the belt-engaging marginal edges of each flight lie in a common plane.
Claim 4
Dependent Claim
27 words
An endless stacker-reclaimer belt in accordance with claim 1 wherein each flight includes a laterally projecting wear bar secured thereto and extending outwardly from each side thereof.
Claim 5
Dependent Claim
49 words
An endless stacker-reclaimer belt in accordance with claim 3 wherein the clamping means includes an upper clamping bar and a lower clamping bar and fastening means extensible through the belt coacting between the upper and lower clamping bars and means for attaching the upper clamping bar to the flight.
Claim 6
Dependent Claim
35 words
An endless stacker-reclaimer belt in accordance with claim 5 wherein the upper and lower clamping bars extend outwardly beyond the marginal edge of the belt on each side thereof to provide a wear bar portion.
Claim 7
Dependent Claim
40 words
An endless stacker-reclaimer belt in accordance with claim 5 wherein the fastening means includes a pair of thread-bearing studs welded to one of the clamping bars, corresponding to stud-receiving bores in the other clamping bar and nuts for said studs.
Claim 8
Dependent Claim
45 words
An endless stacker-reclaimer belt in accordance with claim 5 wherein the lower clamping bar is provided with a marginally located block, the inner face of which defines an abutment for the marginal edge of the belt, and the outer face defines a lateral wear surface.
Claim 9
Dependent Claim
34 words
An endless stacker-reclaimer belt in accordance with claim 7 wherein the lower clamping bar includes the studs welded thereto and the upper clamping bar is provided with nut-receiving recesses concentric with the stud-receiving bores.
References Cited (Backward Citations)
US1465071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |