Patent ID: 7846297
Filing Date: 2010-12-07
Classification: B08B,D21F

Abstract:
1. A hood for a paper, board, tissue, or pulp machine, the hood comprising: a ceiling, a back side wall, and a front side wall arranged to enclose at least a portion of a paper, board, tissue, or pulp machine, the hood being located about a portion of a paper, board, tissue, or pulp machine; wherein the front side wall includes staggered front side wall segments mounted for movement along rails; wherein there are at least six front side wall segments mounted for movement in a machine direction along rails arranged so that at least two groups of at least three front side wall segments are arranged for movement along the rails, said movement forming at least two groups of at least 3 overlapping front side wall segments, and gaps therebetween so providing access to the paper, board, tissue, or pulp machine; wherein each group of at least three front side wall segments forms a module of similar front side wall segments from which the hood is constructed; wherein the ceiling includes staggered ceiling segments not attached to the front side wall or back side wall and mounted for movement on rails; and wherein there are at least two ceiling segments mounted for movement in a machine direction along rails arranged so that said movement forms at least two overlapping ceiling segments, said movement providing an opening in the ceiling for access to the paper, board, tissue, or pulp machine.