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USRE30759E Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for producing and transporting single and multilayer chipboards

Assignee: Carl Schenck AG
•
Filing: 1980-01-24
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Granted: 1981-10-06
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Expires: 2000-01-24
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Abstract

Abstract Method of producing chipboards includes conveying elongated cauls end-to-end sequentially past a material-dispensing device, forming a mat of the dispensed material on the cauls, severing the mat transversely to chipboard lengths, feeding the severed mat lengths together with the cauls into a heating press and beating and compressing the same to form chipboards, withdrawing the chipboards and cauls together from the heating press and separating them from one another, and continuously reconveying the cauls past the material-dispensing device. In apparatus for carrying out the method, an endless conveyor for conveying the cauls end-to-end has entrainer dogs engageable with abutment rods on the cauls for advancing the cauls in a substantially horizontal conveying direction along an upper run of the conveyor located below the material-dispesing device.

Inventors

  • 👤 Wolfgang Burkner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 09:37
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/16; B27N3/20; B27N3/22; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/12

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 256 words
device..]. .[.7. Apparatus for producing and transporting chipboards of material consisting primarily of wood particles, chips, fibers or the like and a binding agent, comprising a material-dispensing device, a plurality of elongaged cauls, main conveyor means for conveying said cauls end-to-end sequentially past said material-dispensing device so that material is continuously spread from said device over said cauls to form a continuous mat of the material thereon, severing means located adjacent said main conveyor means downstream from said material-dispensing device for transversely severing the mat into lengths thereof on the respective cauls corresponding substantially to the ultimate length of the chipboard to be formed, a multitier heating press located downstream from said severing means for receiving said mat portions and respective cauls therein and subjecting them to heat and pressure to form the mat portions into chipboards, means for withdrawing the chipboards and respective cauls together from said heating press, means for separating the chipboards from the respective cauls, and conveyor means for reconveying said cauls in a closed cycle past said material-dispensing device..]. .[.8. Apparatus according to claim 7 wherein said cauls have a main body portion of metal cloth construction and are provided with a ledge at the leading edge thereof extending laterally beyond said main body portion..]. .[.9. Apparatus according to claim 7 including a multitier supply cage located upstream of said heating press adapted to receive a mat portion with its respective caul in each tier thereof, and means for simultaneously transferring a plurality of the mat portions and respective cauls into
Claim 2
Dependent Claim 66 words
said heating press..]. 10. Apparatus according to claim .[.8.]. .Iadd.16 .Iaddend.further comprising a horizontally disposed thrust mechanism adjustable to a selected length and having a plurality of gripping members thereon for respectively engaging the ledges of a plurality of cauls at the rear edge thereof so as to advance said cauls in the main conveying direction, and second conveyor means for driving said connecting member in
Claim 3
Dependent Claim 52 words
substantially horizontal direction. 11. Apparatus according to claim .[.8.]. .Iadd.16 .Iaddend.including a control station located downstream of said severing means for comparing the severed mat portions to nominal specifications, and means operatively connected to said control station for blocking a mat portion from said heating press if it fails to meet the
Claim 4
Dependent Claim 62 words
nominal specifications. 12. Apparatus according to claim 11 wherein said control station is located upstream from said supply cage, and said blocking means comprises a pivot table located between said control station and said supply cage. .[.13. Apparatus according to claim 7 wherein said heating press is provided with heating platens, and screen-like cauls are disposed on the underside of said heating
Claim 5
Dependent Claim 482 words
platens..]. 14. Apparatus according to claim .[.8.]. .Iadd.16 .Iaddend.wherein said supply cage has a lowermost tier provided with a substantially horizontal slotted plate, and a substantially horizontal conveyor located at the underside of said plate, and a common thrust beam located at all the other tiers of said supply cage for simultaneously transferring mat portions and cauls located at said other tiers into said heating press. .Iadd. 15. Method of producing and transporting chipboards of material consisting primarily of wood particles, chips, fibers or the like and a binding agent which comprises conveying a plurality of elongated cauls each of which has a main body portion of screen-like metal cloth construction and a ledge at the leading edge thereof extending beyond the main body portion, end to end sequentially past a material dispensing station with the ledge of one caul overlapping the trailing edge of the immediately preceeding caul in the conveying direction, continuously spreading material dispensed from the device over the cauls so as to form a continuous mat of the material thereon, transversely severing the mat to form lengths thereof on the respective cauls corresponding substantially to the ultimate length of the chipboard to be formed, feeding the severed mat portions together with the respective cauls into a multitier heating press, subjecting the mat portions and cauls to pressure and heat in the heating press to form the mat portions into chipboards, withdrawing the chipboards and respective cauls together from the heating press, separating the chipboards from the cauls and continuously reconveying the cauls in closed circuit past the material dispensing device. .Iaddend..Iadd. 16. Apparatus for producing and transporting chipboards of material consisting primarily of wood particles, chips, fibers or the like and a binding agent, comprising a material-dispensing device, a plurality of elongated cauls, each of which has a main body portion of screen-like metal cloth construction and a ledge at the leading edge thereof extending laterally beyond said main body portion, main conveyor means for conveying said cauls end-to-end sequentially past said material-dispensing device so that material is continuously spread from said device over said cauls to form a continuous mat of the material thereon, severing means located adjacent said main conveyor means downstream from said material-dispensing device for transversely severing the mat into lengths thereof on the respective cauls corresponding substantially to the ultimate length of the chipboard to be formed, a multitier heating press located downstream from said severing means for receiving said mat portions and respective cauls therein and subjecting them to heat and pressure to form the mat portions into chipboards, a multitier supply cage for feeding said mat portions and respective cauls to said heating press, means for withdrawing the chipboards and respective cauls together from said heating press, means for separating the chipboards from the respective cauls, and conveyor means for reconveying said cauls in a closed cycle past said material-dispensing device..Iaddend.

References Cited (Backward Citations)

US2693135A Cited
DE1162550B Cited
US3372217A Cited
US3173976A Cited
DE1236182B Cited
US3478137A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-10-05 1985-04-06 1985-10-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-10-05 1989-04-06 1989-10-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-10-05 1993-04-06 1993-10-06 $7700.00 Window Closed / Lapsed

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