公开(公告)号：US20220193687A1

公开(公告)日：2022-06-23

申请号：US17130797

申请日：2020-12-22

申请人： Troyer Brothers, Inc.

发明人： Marcus C. Troyer ,  John R. McAfee

IPC分类号： B02C4/30

摘要： An apparatus for decompressing/pulverizing and fluffing up bales of compressed thermal insulation includes grinding wheel and a grinding die adjacent thereto thereby forming a gap therebetween. The grinding wheel is constructed with a plurality of plane members cut from flat steel material and stacked longitudinally about a rotatable shaft. The plane members each include a perimeter surface which together form the grinding wheel mantle surface and protrusions thereon. Coupling rods extend through aligned holes in the stacked plane members and retain the plane members in their stacked positions. The grinding die is constructed with a plurality of die plates cut from flat steel material and which are stacked longitudinally. The die plates each include an abutment surface which together form the grinding die surface and protrusions thereon. Coupling rods similarly extend through aligned holes in the stacked die plates and retain the die plates in their stacked positions.