公开(公告)号：US10286572B2

公开(公告)日：2019-05-14

申请号：US13659423

申请日：2012-10-24

Applicant: United States Gypsum Company

Inventor： Alfred Li ,  Chris C. Lee ,  Cesar Chan ,  Ronald E. Schenck ,  Weixin D. Song ,  Curt Loring ,  James Wittbold ,  William Rago

IPC: B32B5/20 ,  B28B19/00 ,  F16L41/02 ,  B29B7/74 ,  B29B7/76

Abstract: A flow splitter can include an inlet conduit and first and second outlet conduits separated by a junction portion. The inlet conduit can include an inlet end and a junction end. The inlet conduit is disposed along a main flow axis extending between the inlet end and the junction end. The inlet end defines an inlet opening. The junction end defines first and second junction openings. The first junction opening is disposed in spaced relationship to the second junction opening. The junction portion is disposed at the junction end of the inlet conduit between the first and second junction openings. The junction portion includes a substantially planar wall region that is substantially perpendicular to the main flow axis. The flow splitter can be placed in fluid communication with a cementitious slurry mixer and a slurry distributor with the flow splitter disposed therebetween.

公开(公告)号：US20190137114A1

公开(公告)日：2019-05-09

申请号：US16179878

申请日：2018-11-02

Applicant: United States Gypsum Company

Inventor： Ajith Rao ,  Suman Sinha Ray

IPC: F24D13/02 ,  E04F15/16 ,  H05B3/36

Abstract: A heating system for a floor is provided and includes a plurality of heating devices, where each of the heating devices includes a membrane, and a plurality of heating elements and at least one electrical coupling member attached to the membrane. At least one heating device coupling member is attached to the at least one electrical coupling member on adjacent heating devices of the plurality of heating devices, where the at least one heating device coupling member conveys electricity between the adjacent heating devices.

公开(公告)号：US10272399B2

公开(公告)日：2019-04-30

申请号：US15663104

申请日：2017-07-28

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Ashish Dubey ,  Peter B. Groza ,  Christopher R. Nelson

IPC: B28B3/22 ,  B01F7/00 ,  B01F3/12 ,  B01F7/04 ,  B01F7/06 ,  B01F7/08 ,  B01F13/10 ,  B01F15/02 ,  B28C5/12 ,  B28C5/14 ,  B28B1/52 ,  B28B5/02 ,  B28C5/40 ,  B29B7/48

Abstract: A method in which a stream of dry cementitious powder from a dry powder feeder passes through a dry cementitious powder inlet conduit to feed a first feed section of a fiber-slurry mixer. An aqueous medium stream passes through at least one aqueous medium stream conduit to feed a first mixing section the fiber-slurry mixer. A stream of reinforcing fibers passes from a fiber feeder through a reinforcing fibers stream conduit to feed a second mixing section of the fiber-slurry mixer. The stream of dry cementitious powder, aqueous medium stream, and stream of reinforcing fibers combine in the fiber-slurry mixer to make a stream of fiber-cement mixture which discharges through a discharge conduit at a downstream end of the mixer.

公开(公告)号：US20190092689A1

公开(公告)日：2019-03-28

申请号：US16126969

申请日：2018-09-10

Applicant: United States Gypsum Company

Inventor： Yijun SANG ,  Mark K. HEMPHILL

IPC: C04B28/14 ,  C04B24/38 ,  C04B22/12 ,  C04B40/00

Abstract: Disclosed is gypsum board formed from stucco, water, and at least one migrating starch having a cold-water solubility of at least about 25%. Generally, the starch has a viscosity of less than about 20 centipoise (e.g., from about 1 centipoise to about 20 centipoise), as determined according to the VMA method. Also disclosed are related slurries and methods of preparing gypsum board.

公开(公告)号：US10232588B2

公开(公告)日：2019-03-19

申请号：US14523016

申请日：2014-10-24

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Yufeng Xu ,  Wenqi Luan

IPC: B32B13/08 ,  B32B13/00 ,  B32B29/00 ,  C04B24/42 ,  C04B28/14 ,  B28B19/00 ,  C04B111/00 ,  B28B5/02

Abstract: An improved water-resistant gypsum product prepared with a high-viscosity siloxane is provided. A fuel-efficient method for making the product and reducing the amount of siloxane dust released is provided as well.

公开(公告)号：US20190077700A1

公开(公告)日：2019-03-14

申请号：US15988974

申请日：2018-05-24

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Wei XU ,  Derrick HUTCHINSON ,  Christopher J. ROKKE ,  Lori TUTTLE ,  Michael J. HOUGH

IPC: C03C14/00 ,  C03C25/26 ,  C03C25/47 ,  B32B19/04 ,  B32B19/06 ,  B32B5/02 ,  E04D11/02

Abstract: Composite roofing structures can include mineral fiber roof cover boards with high concentration of mineral wool or mineral wool and perlite. The roofing structure may include: a roof cover board including a dried base mat including: 8-25% mineral wool, 40-65% perlite, 9-15% binder, 9-15% cellulosic fiber, and 0.25-2% sizing agent, all % by weight; an insulation layer; and a roofing membrane. The roof cover board is over the insulation layer, the roofing membrane is over the roof cover board. The roof cover board is attached to the insulation layer. The roofing membrane is attached to the roof cover board. Alternatively dried base mat may include: 30-70% mineral wool, 10-50% perlite, 5-15% binder, 2-20% cellulosic fiber, and 0.25-2% sizing agent. Alternatively the dried base mat may include: 60-90% mineral wool, 0-10% fiber, 0-10% perlite, 4-10% binder, 0-5% gypsum, and 0.25-2% sizing agent.

公开(公告)号：US10221096B2

公开(公告)日：2019-03-05

申请号：US15452110

申请日：2017-03-07

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Ashish Dubey

IPC: C04B28/00 ,  C04B7/32 ,  C04B12/00 ,  C04B28/18 ,  C04B22/10 ,  C04B111/00 ,  C04B111/34 ,  C04B111/62 ,  C04B111/72 ,  C04B103/22 ,  C04B103/32

Abstract: A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar and repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium aluminate cement, a calcium sulfate and a chemical activator with water.

公开(公告)号：US20190062226A1

公开(公告)日：2019-02-28

申请号：US16050351

申请日：2018-07-31

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Samar Emami ,  Jeffrey F. Grussing ,  Nancy L. Bernicke-Grussing ,  Salvatore C. Immordino ,  Nabin Kaini ,  Alexander J. Donovan

IPC: C04B41/45 ,  C04B41/50 ,  B65D65/46 ,  B65D85/00

Abstract: A water-soluble texture enhancing composition, including a base powdered composition including powdered calcium carbonate, and a soluble packaged bleach, provided in sufficient quantity so that upon mixing with the base composition and water to form an aqueous slurry, and being agitated, the bleach provides an anti-microbial function for an extended period, preferably up to 80 hours. Also, a process for preparing a textured composition is provided, including providing a base powdered texture composition, providing soluble packaged bleach and mixing same with the base composition, and adding water to create an aqueous slurry, the soluble packaged bleach being provided in sufficient amount for inhibiting microbial growth in the solution for an extended period, preferably up to 80 hours.

公开(公告)号：US20190055161A1

公开(公告)日：2019-02-21

申请号：US16168107

申请日：2018-10-23

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Ashish Dubey ,  Yanfei Peng

IPC: C04B7/26 ,  E04F15/18 ,  E04C2/26 ,  B28B11/04 ,  B28B23/00 ,  B32B5/26 ,  B32B13/08 ,  B32B13/14 ,  B32B29/00 ,  C04B14/42 ,  C04B41/45 ,  C04B41/46 ,  C04B41/48 ,  C04B41/50 ,  E04C2/06 ,  E04C2/04 ,  C09D5/00 ,  C04B41/70 ,  C04B41/63 ,  C04B41/52 ,  C04B111/00 ,  C04B111/27

Abstract: Disclosed are hydrophobic finish compositions and cementitious articles made with the hydrophobic finish compositions. In some embodiments, the article is a waterproof gypsum panel surface reinforced with inorganic mineral fibers that face a flexible and hydrophobic cementitious finish possessing beneficial waterproofing properties. The waterproof gypsum panels of the invention have many uses, such as, tilebacker board in wet or dry areas of buildings, exterior weather barrier panel for use as exterior sheathing, and roof cover board having water durability and low surface absorption. The flexible and hydrophobic cementitious finish can include fly ash, film-forming polymer, silane compound (e.g., alkyl alkoxysilane), an extended flow time retention agent including either one or more carboxylic acids, salts of carboxylic acids, or mixtures thereof, and other optional additives.

公开(公告)号：US10195636B2

公开(公告)日：2019-02-05

申请号：US14719851

申请日：2015-05-22

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Robert H. Negri ,  Bernie St. James ,  Elliot St. James ,  Aaron St. James

IPC: B32B37/22 ,  B44C7/04 ,  B05C5/02 ,  B05C11/02 ,  C09J5/00 ,  B05D1/40 ,  E04F21/00 ,  E04F21/165

Abstract: An automatic dispensing device for wallboard joint taping is provided, including a body for holding a supply of viscous material and having a rear end and an opposite front end, a spool assembly disposed on the body and configured for supporting a spool of tape; at least one drive roller positioned at the front end and receiving an end of the spool of tape. Certain embodiments include an adhesive application assembly connected to the drive roller and mounted in operational relationship to the front end for dispensing a measured amount of adhesive upon an upper surface of the tape upon rotation of the at least one drive roll. In such embodiments, the body may be configured for holding sufficient adhesive to cover tape advanced by at least 200 rotations of the at least one drive roller.