Patent ID: 7145117
Filing Date: 2006-12-05
Classification: F26B,H05B

Abstract:
1. An apparatus for heating a board product containing glued wood, said apparatus comprising: a heating chamber through which the board product passes, wherein said heating chamber contains a wave spreader arranged to apply a microwave frequency energy from a wave generator in a direction perpendicular to a board plane of the board product, said board plane being transverse to planes corresponding to edges of said board product, and wherein said wave spreader is arranged to spread a wave pattern of the microwave frequency energy such that the wave pattern stretches in a direction transverse to the direction in which the board product passes through the heating chamber; and slide pieces substantially filling running clearances between respective side edges of the board and side walls of the heating chamber, wherein the slide pieces are made of a material having a small loss tangent and a low dielectric factor.