Patent ID: 7811413
Filing Date: 2010-10-12
Classification: B28B,B32B,E04C,Y10T

Abstract:
1. In a gypsum board forming device comprising a supply of continuous sheet of material, a gypsum slurry mixer, including a gypsum delivery mechanism for delivering a first gypsum slurry, disposed at least at one gypsum delivery station for delivering said first gypsum slurry onto said continuous sheet, at least one additive assembly connected to an additive fluid feed for adding a homogenous stream of an additive to the first gypsum slurry in a first gypsum slurry transport receptacle, a gypsum core delivery mechanism including a second gypsum slurry transport receptacle, a sheet joining station for joining said continuous sheet to said core gypsum, and a gypsum conveyor line, having a belt with a surface for conveying formed gypsum board from the sheet joining station, the at least one additive assembly further comprising: an additive delivery port in fluid communication with the additive fluid feed; a turbulator disposed in-line with the additive fluid feed of at least one of the gypsum delivery mechanisms, the turbulator comprising a fluid constrictor having an outlet, the fluid constrictor outlet being disposed adjacent the gypsum slurry stream being transported through the first gypsum slurry transport receptacle.