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US3578151A Expired / Lapsed US ⏱️ 0.0 years remaining

Sheet conveyor system

Assignee: Leading Plywood
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Filing: 1968-11-29
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Granted: 1971-05-11
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Expires: 1988-11-29
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Abstract

Abstract A conveyor system is disclosed for the transfer of sheet material. The traveling components comprise a multitude of replaceable elastic members each identically entrained about powered roller means. The system presently disclosed is adapted for conveying sheet material which is to be treated while being conveyed with additional structure being disclosed for cleaning of the elastic conveyor components. Toward this end a rinse is provided for the conveyor components along with means for removing water particles from said components prior to their again receiving delivered sheet material to be treated.

Inventors

  • 👤 John H Crawford

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 22:04
CPC Classifications
B; B65; B65G; B65G45/00; B65G45/10; B65G45/18

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 247 words
A conveyor system for the transfer of successive wood veneer sheets past a glue spray station with the system providing for the removal of overspray and wood fragments from the conveyor components, said system comprising, a pair of powered smooth surfaced rollers oppositely disposed from the said material spray station, an additional powered roller disposed below said pair of rollers, a multitude of independent rubber cords of circular sections entrained in parallel relationship on said rollers for transferring said sheet material, each of said cords having a normal relaxed length less than their stretched length when entrained in place in the conveyor system, cooperating hook members inserted in opposite ends of each of said cords whereby a cord may be individually entrained about said rollers and stretched permitting joining of said hook members for tensioned installation of the cord on said rollers, a liquid filled tank located along the course of said cords with said additional roller disposed therein to cause said cords to be immersed, means simultaneously spacing and wiping a portion of the surface of each of said cords, rinse applicator means also located along said course of said cords, and a powered brush transversely disposed across the path of said cords with a portion of the brush moving arcuately through and beyond the cords for collecting excess liquid from the cords prior to their receiving sheet material, said brush independently powered at a rotational speed adequately to discharge the collected liquid by centrifugal force.
Claim 2
Dependent Claim 247 words
A conveyor system for the transfer of successive wood veneer sheets past a glue spray station with the system providing for the removal of overspray and wood fragments from the conveyor components, said system comprising, a pair of powered smooth surfaced rollers oppositely disposed from the said material spray station, an additional powered roller disposed below said pair of rollers, a multitude of independent rubber cords of circular sections entrained in parallel relationship on said rollers for transferring said sheet material, each of said cords having a normal relaxed length less than their stretched length when entrained in place in the conveyor system, cooperating hook members inserted in opposite ends of each of said cords whereby a cord may be individually entrained about said rollers and stretched permitting joining of said hook members for tensioned installation of the cord on said rollers, a liquid filled tank located along the course of said cords with said additional roller disposed therein to cause said cords to be immersed, means simultaneously spacing and wiping a portion of the surface of each of said cords, rinse applicator means also located along said course of said cords, and a powered brush transversely disposed across the path of said cords with a portion of the brush moving arcuately through and beyond the cords for collecting excess liquid from the cords prior to their receiving sheet material, said brush independently powered at a rotational speed adequately to discharge the collected liquid by centrifugal force.
Claim 3
Dependent Claim 33 words
The conveyor system as claimed in claim 1 wherein said means for horizontally spacing each of said cords includes arcuate portions in wiping contact with a semicircular surface of each of said cords.
Claim 4
Dependent Claim 42 words
The conveyor system as claimed in claim 1 wherein said hook members are of a reduced size as to not extend beyond a projected periphery of said cords so as to not interfere with cord passage through the spacing and wiping means.

References Cited (Backward Citations)

US2416622A Cited
US2870808A Cited
US2846975A Cited
US2987988A Cited
US3212631A Cited
US3279587A Cited
US3464537A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-05-10 1974-11-09 1975-05-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-05-10 1978-11-09 1979-05-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-05-10 1982-11-09 1983-05-11 $7700.00 Window Closed / Lapsed

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