Roger D May

US Patent:

20190127986, May 2, 2019

Filed:

Sep 5, 2018

Appl. No.:

16/122096

Inventors:

Roger A. May - Kentwood MI, US

International Classification:

E04F 13/04
E04B 2/72
E04C 2/04
E04F 19/02

Abstract:

Drywall made with a pre-formed facer layer, pre-formed to have a well-defined depression along the side edge portion of the drywall. When the pre-formed paper is applied to the drywall core, the resulting sheet of drywall has a well-defined depressed edge portion for receiving mud and drywall tape. The facer layer is pre-formed by passing the semi-solid paper slurry beneath an embossing roller which includes a raised circumferential rib on each side of the roller, and preferably at least one raised crossbar. As the semi-solid paper slurry passes beneath embossing roller, a depressed side edge is formed along each side edge portion of the paper, and preferably a wider lateral depression is formed across the width of the paper every 8, 10 or 12 feet along the length of paper as it is pressed by roller.