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US3884346A Expired / Lapsed US ⏱️ 0.0 years remaining

Conveyor unit

Assignee: Powerscreen International Ltd
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Filing: 1973-06-21
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Granted: 1975-05-20
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Expires: 1993-06-21
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Abstract

Abstract This invention relates to an articulated conveyor assembly, and to a conveyor unit for use as a loading end extension or as a delivery end extension for a main conveyor in, for example, a material handling apparatus, or for use as a delivery end extension for each conveyor and/or chute incorporated in apparatus, for example screening apparatus, crushing apparatus or de-watering apparatus. The conveyor unit includes an elongate framework carrying at least two transverse, longitudinally spaced rollers, one of which is driven by a hydraulic motor, an endless conveyor belt entrained around said spaced rollers, said framework including means for mounting the framework on a main conveyor, and being mounted for transverse pivotal movement at a location above the framework and at a location below the framework to enable the framework to be pivoted relative to the main conveyor, the two locations being vertically aligned, and a swivel arrangement being incorporated in the means for mounting the framework for rotating the framework relative to the means for mounting the framework.

Inventors

  • 👤 Patrick O'neill
  • 👤 Patrick Joseph Douglas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 10:35
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/28; B07; B07B; B07B1/00; B07B1/005; B07B13/00; B07B13/14; B07B13/16; B65G37/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 112 words
A conveyor assembly comprising a main conveyor; an extension conveyor unit comprising an upright C-frame, a framework mounted on said C-frame and a conveyor mounted on said framework, said framework being pivotally mounted along an upright axis on the lower arm of the C-frame and connected to the upper arm by a brace, also pivotally mounted along said axis; attachment means mounting said C-frame to the off-loading end of said main conveyor, comprising a pivotal connection for pivotal movement of the C-frame relative to the main conveyor in a vertical plane and a length adjustable rod which is adjustable to pivot the C-frame relative to the main conveyor in said vertical plane.
Claim 2
Dependent Claim 112 words
A conveyor assembly comprising a main conveyor; an extension conveyor unit comprising an upright C-frame, a framework mounted on said C-frame and a conveyor mounted on said framework, said framework being pivotally mounted along an upright axis on the lower arm of the C-frame and connected to the upper arm by a brace, also pivotally mounted along said axis; attachment means mounting said C-frame to the off-loading end of said main conveyor, comprising a pivotal connection for pivotal movement of the C-frame relative to the main conveyor in a vertical plane and a length adjustable rod which is adjustable to pivot the C-frame relative to the main conveyor in said vertical plane.

References Cited (Backward Citations)

US400270A Cited
US413045A Cited
US583649A Cited
US1620268A Cited
US2814377A Cited
US3226043A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-05-19 1978-11-18 1979-05-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-05-19 1982-11-18 1983-05-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-05-19 1986-11-18 1987-05-20 $7700.00 Window Closed / Lapsed

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