公开(公告)号：US11029139B2

公开(公告)日：2021-06-08

申请号：US16375670

申请日：2019-04-04

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Jerry D. Wonderlich ,  John A. Koch ,  Charles W. Cochran ,  Tim Lucas ,  Jenner Omodt

IPC: G01B5/28 ,  B26F3/00 ,  G01B5/14

Abstract: A procedure is provided for evaluating the score, snap and edge appearance of wallboard panels, and includes scoring a wallboard panel with a knife at a constant and known force using a benchtop board scoring device; snapping the scored panel in a Universal Board Testing Machine to measure the breaking force, forming a snapped panel edge; measuring a cleanliness of the snapped panel edge by placing a straight edge against the snapped panel edge and measuring gaps between the snapped panel edge and the straight edge in a plurality of locations on a face of the panel, and a plurality of locations on a back of the panel; and averaging all of the measured gaps to create an Index Score.

公开(公告)号：US10309771B2

公开(公告)日：2019-06-04

申请号：US15099082

申请日：2016-04-14

Applicant: United States Gypsum Company

Inventor： Jenner Omodt ,  Alfred C. Li ,  Michael P. Shake ,  Weixin D. Song

IPC: G01B11/30

Abstract: Embodiments of a system and a method for determining a surface smoothness of a facing specimen can be used in connection with the manufacture of products, including cementitious products such as gypsum wallboard, for example. Such systems and methods can be used to generate a composite smoothness factor based upon a measured mottle value and topography value using stochastic frequency distribution analysis.

公开(公告)号：US20190003176A1

公开(公告)日：2019-01-03

申请号：US16000357

申请日：2018-06-05

Applicant: United States Gypsum Company

Inventor： Jeffrey William Donelan ,  Steven Richmond ,  Chris C. Lee ,  Michael P. Shake ,  Jenner Omodt ,  Serguei Zelepouga ,  Yanfei Peng

IPC: E04B1/76 ,  B32B13/04 ,  B32B13/14 ,  C04B28/04 ,  C04B28/16

Abstract: Embodiments of a system and a method for manufacturing a cementitious panel can be used to produce a cementitious panel having a multi-layer air/water barrier membrane assembly. The layers of the membrane can be built up via a series of applicator stations applying a fluid composition using roll coating, for example. Between applicator stations the applied layer of fluid composition can be subjected to drying conditions via infrared heating. To help protect from the deleterious effects of infrared heating, the cementitious panel can be conveyed through a cooling tunnel after each drying section.