Usg Interiors, Inc.

United States Gypsum Company

Usg Inieriors, LLC

John Matthew Willi

James Joseph Lehane

Peder John Gulbrandsen

Abraham M Underkofler

Lee Matthew Tedesco

Donald James Leahy

Michael P O'Donnell

Yelena Straight

Ronald Edward Schenck

Thomas Gregory Rowland

Dale M Shubert

Ronald E Schenck

Embodiments of a system and a method for manufacturing a gypsum board can be used to produce a gypsum board having at least one perforated cover sheet via a cover sheet perforator system. The cover sheet perforator system can include a perforator roller is disposed downstream of a forming station along a machine direction, a roller support frame for rotatably supporting the perforator roller such that its rotational axis extends along the cross-machine direction, and a motor arranged with the perforator roller to rotate the perforator roller about the rotational axis. The drive motor can be adapted to rotate the perforator roller with a tangential speed substantially equal to the line speed to produce a series of perforation holes in an upwardly-facing cover sheet as the gypsum board moves past the perforator roller.

Gypsum board with perforated cover sheet and system and method for manufacturing same

An elongated sheet metal channel for transversely supporting drywall grid tees at regular intervals along the channel, the channel having a generally vertical web, and a lower flange and an upper flange, a vertical spacing between the flanges being sufficient to receive upright grid tees at the intervals, the lower flange having outer and mid-width portions lying in a generally horizontal plane at an interval when a tee is received therein, opposed formations stamped into one of the flanges at the intervals to longitudinally locate the grid tee, the upper flange at said intervals having a pocket for receiving a distorted end of a grid tee.

Wall channel for grid tee

Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls.

Free span ceiling grid system

Growing community of inventors

Westlake, OH, United States of America

John Matthew Willi