Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With gas – vapor – or flame contact means for work
Patent
1985-03-29
1986-08-12
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With gas, vapor, or flame contact means for work
156 622, 156 626, 156 628, 156382, 156499, 1565835, 144271, 264109, 425 73, 425 74, 425445, 425446, B32B 3126
Patent
active
046054677
ABSTRACT:
An apparatus for pressing and steam curing a wood-particle mat to produce a wood-particle board includes a pair of pressing belts which are arranged above each other at a distance to define a gap therebetween within which the wood-particle mat is conveyed and shaped. Along its passage through the pressing belts, the wood-particle mat is first moved along a compression zone in which the gap is gradually reduced and then passes along a sizing zone. Cooperating with the pressing is a steam injection unit which includes a steam supply channel system and a steam discharge channel system. Both channel systems border on the pressing gap and are provided with nozzle bores extending towards the gap. Via the supply channel system, steam is injected along the compression zone in direction of the wood-particle mat while the discharge channel system which extends at least along a downstream section of the sizing zone is provided to collect and eventually to discharge steam.
REFERENCES:
patent: 2282230 (1942-05-01), MacAlpine
patent: 2430868 (1947-11-01), Francis
patent: 3193406 (1965-07-01), Mittelman
patent: 3230287 (1966-01-01), Caron et al.
patent: 4311550 (1982-01-01), Kerttula
patent: 4326844 (1982-04-01), Kissell
Dubno Herbert
G. Siempelkamp GmbH & Co.
Ross Karl F.
Weston Caleb
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