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11.
公开(公告)号:US20230089781A1
公开(公告)日:2023-03-23
申请号:US17932125
申请日:2022-09-14
Applicant: United States Gypsum Company
Inventor: Blair Walker
IPC: C04B11/028
Abstract: Embodiments of a system and a method for manufacturing calcined gypsum can include an in-line calcination control device having an x-ray analyzer. The x-ray analyzer is adapted to analyze at least one of the calcined gypsum being discharged from the calciner and the calcined gypsum being fed into a mixer of a gypsum boardline. The x-ray analyzer is configured to determine the proportion of different calcium sulphate phases found therein which can be used to control at last one of the calciner and the boardline.
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12.
公开(公告)号:US11453613B2
公开(公告)日:2022-09-27
申请号:US16139350
申请日:2018-09-24
Applicant: United States Gypsum Company
Inventor: Guy L. Rosenthal , Charles J. Miller , Tyler Kincaid , Joseph Schlude
IPC: C04B28/14 , C04B22/10 , C04B22/16 , C04B24/12 , C04B22/14 , C04B40/06 , C04B9/04 , C04B11/00 , C04B7/00 , C04B7/34 , C04B28/00 , C04B32/00 , C04B111/00 , C04B103/22 , C04B103/12
Abstract: A ready-mixed setting type joint compound in which formation of gypsum seeds has been inhibited. A method for controlling a setting reaction by mixing a ready-mixed setting type joint compound with one or more metal ion control agents comprising aminopolycarboxylic acid and/or a salt thereof, and further mixing the setting type joint compound with one or more non-calcium phosphate compounds. The method may further comprise mixing the setting type joint compound with a set activator obtained by blending together a first set activator including a cadmium compound, lead compound and/or zinc compound and a second set activator including a ferrous compound, aluminum compound and/or manganese compound.
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公开(公告)号:US11384524B2
公开(公告)日:2022-07-12
申请号:US16572048
申请日:2019-09-16
Applicant: United States Gypsum Company
Inventor: Frank Pospisil , Breton Betz
Abstract: A modular assembly is provided and includes a modular frame to be installed at least partially below grade and at least two panels attached to the modular frame, where the at least two panels are made of a material that withstands lateral, vertical and shear forces generated by surrounding below grade materials. The modular frame and the at least two panels are joined together as a unit prior to installation.
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公开(公告)号:US11224990B2
公开(公告)日:2022-01-18
申请号:US15663007
申请日:2017-07-28
Applicant: UNITED STATES GYPSUM COMPANY
Inventor: Ashish Dubey , Peter B. Groza , Christopher R. Nelson
IPC: B28C7/04 , B28C5/40 , B28C5/12 , B28B5/02 , B28B3/22 , B01F7/00 , B01F7/08 , B28C5/14 , B01F7/04 , B29B7/48 , B28B1/52 , B29B7/90 , B29C48/67 , B29B7/72 , B29B7/44 , B01F3/12 , B28B13/02 , B01F15/02 , B01F3/20 , B05C1/08
Abstract: Continuous method including mixing water and cementitous powder to form slurry; mixing the slurry and reinforcement fibers in a single pass horizontal continuous mixer to form fiber-slurry mixture, the mixer including an elongated mixing chamber having a reinforcement fiber inlet port, and upstream of the fiber inlet port is an inlet port to introduce water and cementitous powder together as one stream or at least two inlet ports to introduce water and dry cementitous powder separately as separate streams into the chamber, a rotating horizontal shaft/s within the chamber, part of the chamber for mixing the fibers and slurry and moving the fiber-slurry mixture to a mixture outlet; discharging the fiber-slurry mixture from the mixer outlet; forming and setting the fiber-slurry mixture on a moving surface; cutting the set mixture into fiber reinforced concrete panels and removing the panels from the moving surface.
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公开(公告)号:US11173629B2
公开(公告)日:2021-11-16
申请号:US15662932
申请日:2017-07-28
Applicant: UNITED STATES GYPSUM COMPANY
Inventor: Ashish Dubey , Peter B. Groza , Christopher R. Nelson
IPC: B28C7/04 , B28C5/12 , B01F7/00 , B28B19/00 , B01F13/10 , B01F7/04 , B28C5/14 , B28C5/40 , B28C9/00 , B28B1/52 , B28B13/02 , B01F15/02 , B01F3/12 , B05C1/08
Abstract: A method in which a stream of dry cementitious powder passes through a first conduit and aqueous medium stream passes through a second conduit to feed a slurry mixer to make cementitious slurry. The cementitious slurry passes through a third conduit and a reinforcement fiber stream passes through a fourth conduit to feed a fiber-slurry mixer which mixes the slurry and discrete fibers to make a stream of fiber-slurry mixture. An apparatus for performing the method is also disclosed.
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公开(公告)号:US11126169B2
公开(公告)日:2021-09-21
申请号:US16399224
申请日:2019-04-30
Applicant: UNITED STATES GYPSUM COMPANY
Inventor: Scott M. DellAngelo , Robert Wykoff
IPC: G05B19/418 , B28B19/00 , F26B15/12 , B28B11/24 , B28B17/00
Abstract: A system for controlling a line speed of a conveyor belt of a conveyor system during product changeovers in a wallboard production line includes a computer processor, a calculation module for calculating a predetermined mass rate of a supply of ingredients transported on the conveyor belt and deposited into a mixer during a product changeover period, and a speed adjustment module for adjusting the line speed of the conveyor belt, using the processor, based on at least one of the predetermined mass rate and the line speed of the conveyor belt for reducing an overshoot during said product changeover period.
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公开(公告)号:US20210253476A1
公开(公告)日:2021-08-19
申请号:US17306460
申请日:2021-05-03
Applicant: UNITED STATES GYPSUM COMPANY
Inventor: Yijun SANG , Brian J. CHRIST
Abstract: Disclosed are product (e.g., board), slurry, and methods relating to an uncooked starch that can be used to enhance strength in one or more gypsum layers in the board. The uncooked starch has a hot water viscosity of from about 20 BU to about 300 BU according to the HWVA method, and/or a mid-range peak viscosity of from about 120 Brabender Units to about 1000 Brabender Units.
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公开(公告)号:US11066576B2
公开(公告)日:2021-07-20
申请号:US15270123
申请日:2016-09-20
Applicant: United States Gypsum Company
Inventor: Guy Rosenthal , Pamela L. Hargrove , Joseph Adcock , Robert Negri
Abstract: A joint tape to be applied to wallboard is provided and includes a base substrate having opposing sides. In certain embodiments, a first adhesive layer is applied to one of the sides of the base substrate and a second adhesive layer is applied to the first adhesive layer, where the first adhesive layer is different than the second adhesive layer. In certain other embodiments, two different adhesives are used in a single adhesive layer. In use, the joint tape is positioned over and removably secured to a joint or corner between adjacent wallboard panels using the first adhesive layer. After the joint tape is in position, joint compound is applied to the joint tape, and the water in the joint tape activates it to form a secure bond with the wallboard panels.
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公开(公告)号:US11028597B2
公开(公告)日:2021-06-08
申请号:US16297196
申请日:2019-03-08
Applicant: UNITED STATES GYPSUM COMPANY
Inventor: Salvatore C. Immordino, Jr.
Abstract: A fastener is provided and is configured for securing magnetized items to a wallboard panel. Included on the fastener is a fastener body having a first side and an opposite second side, and a counter-sunk throughbore extends from the first side to the second side. The body has a tapered peripheral edge. In addition, the first side is covered with wallboard joint tape.
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公开(公告)号:US11028290B2
公开(公告)日:2021-06-08
申请号:US16380381
申请日:2019-04-10
Applicant: UNITED STATES GYPSUM COMPANY
Inventor: Guy Rosenthal , Terry Rosenstiel , Salvatore Immordino , Robert Negri
Abstract: A gap finishing tape for use with drywall applications includes a trim strip body extending along a central body axis, a hot melt adhesive extending along the central body axis, and a backing paper. The trim strip body includes a first surface, a second surface opposite the first surface, a first side, and a second side opposite the first side, and is at least partially constructed from a metallic material. The backing paper is at least partially secured to the second surface of the trim strip body. The trim strip body is at least partially embedded in the hot melt adhesive.
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