Gerald D. Boydston
Engineering at Big Horn Ave, Cody, WY

License number
Louisiana EI.0006336
Issued Date
Jan 1, 1900
Category
Civil Engineer
Address
Address
3304 Big Horn Ave, Cody, WY 82414

Professional information

Gerald Boydston Photo 1

Exterior Sheathing Weather Barrier Construction And Method Of Manufacture

US Patent:
2005015, Jul 21, 2005
Filed:
Mar 11, 2005
Appl. No.:
11/078518
Inventors:
Robert Hauber - Lutz FL, US
Mark Hennis - Indian Rocks Beach FL, US
Gerald Boydston - Cody WY, US
Michael Fahey - St. Petersburg FL, US
Robert Gerken - Tampa FL, US
International Classification:
B32B027/12, B32B005/02, B32B013/02, B32B013/14
US Classification:
442042000, 442002000, 442020000
Abstract:
A gypsum board panel having two facing main surfaces and machine edge surfaces, the board including an outer gypsum layer in which a polymer additive has been entrained, and the machine edges being shaped to have a three-dimensional feature, such that the features are complementary, and one machine edge surface can engage the complementary surface of the machine edge of an adjacent gypsum board panel. The three-dimensional features may include a triangular, in cross-section, ridge, or a rectangular ledge, or a concave edge, with a corresponding complementary groove or depression on the opposed edge for engagement with the edge of an adjacent board. A plurality of fastener plugs, taking the form of, for example strips or dots, can be disposed on the outer facing surface of the board to provide an entry point for penetration of a fastener, such as a nail or screw, and a layer of sheathing material, for example a covering polymeric coating, is optionally disposed over the outer board panel surface to further enhance the moisture repellent properties of the board.


Gerald Boydston Photo 2

System And Method For The Construction Of Bound Fibrous Mats

US Patent:
2013032, Dec 12, 2013
Filed:
Jun 8, 2012
Appl. No.:
13/491746
Inventors:
Robert J. Hauber - Tampa FL, US
Gerald D. Boydston - Cody WY, US
Assignee:
CERTAINTEED GYPSUM, INC. - Tampa FL
International Classification:
B32B 38/08, B05C 1/12
US Classification:
156 42, 118712
Abstract:
Disclosed is a system and method for constructing fibrous mats. In accordance with the disclosure, continuous lengths of filament are pre-coated with a liquefied thermoplastic. The pre-coated filaments are then laid down upon a belt to forum a fibrous mat. The filaments can be laid down in continuous lengths or they can be chopped into discontinuous lengths. The filaments are heated after they have been laid down in order to re-liquefy the thermoplastic and facilitate bonding between intersecting fibers. The disclosure further relates to a system and method for incorporating constructed fibrous mats into a composite building board.


Gerald Boydston Photo 3

Coatings For Glass Reinforced Faced Gypsum Board

US Patent:
2009008, Apr 2, 2009
Filed:
Dec 8, 2008
Appl. No.:
12/329998
Inventors:
Mark E. HENNIS - Clearwater FL, US
Christopher J. Sanders - Safety Harbor FL, US
Michael P. Fahey - St. Petersburg FL, US
Gregory L. Wascomb - Pickerington OH, US
Robert J. Hauber - Tampa FL, US
Gerald D. Boydston - Cody WY, US
International Classification:
B32B 3/00, B05D 3/00
US Classification:
428141, 4273722, 4281951, 428201
Abstract:
A coating method for gypsum board having a surface gypsum layer in which a polymer additive has been entrained including forming a gypsum board including the polymer additive entrained in a surface layer, application of a preferably acrylic primary coating, curing and drying the gypsum board, passing the gypsum board through a first roll coater wherein a second fluid coating is deposited over the primary layer of the dried, coated gypsum board in which the polymer additive has been entrained, the coating then being dried and cured, wherein the coating material of the primary coating forms a chemical bond with the polymer additive entrained in the surface layer of the gypsum board and the polymer of the primary coating forms a chemical bond with the second fluid coating. A coating material which can form copolymer bonds with the second coating is then deposited on the second coating and then dried and cured, resulting in coated gypsum board having a low surface tension surface that is essentially impermeable to water and vapor or moisture penetration.


Gerald Boydston Photo 4

Apparatus For Targeted Delivery Of Additives To Varying Layers In Gypsum Panels

US Patent:
7811413, Oct 12, 2010
Filed:
Sep 25, 2008
Appl. No.:
12/238284
Inventors:
Mark E. Hennis - Indian Rocks Beach FL, US
Michael P. Fahey - St Petersburg FL, US
Robert J. Hauber - Lutz FL, US
Matthew J Chowing - Cody WY, US
Gerald D. Boydston - Cody WY, US
Troy R. Stuart - Cody WY, US
Assignee:
BPB Limited - Coventry
International Classification:
B28B 19/00
US Classification:
156346, 425110, 425115, 425130, 425224
Abstract:
A multilayer gypsum board forming device, and a gypsum additive delivery system in which additives are delivered to one or more layers of a multi layered gypsum board panels, including engineered polymers, includes at least one additive assembly connected in-line with a first gypsum delivery receptacle for providing an additive fluid feed into the stream of a first gypsum slurry being transported through said first gypsum delivery receptacle for homogenously adding an additive to the first gypsum slurry, and a second gypsum delivery receptacle transporting a second gypsum slurry, in fluid communication with the mixer providing the first gypsum slurry, having a different set of characteristics from those of the first gypsum slurry. At least one outer surface including a polymeric compound or wax emulsion additive entrained therein essentially encases the core gypsum within two facing layers.


Gerald Boydston Photo 5

Composite Building Boards With Thermoplastic Coatings And Cementitious Precoated Fibrous Mats

US Patent:
2011025, Oct 20, 2011
Filed:
Jan 14, 2011
Appl. No.:
13/006691
Inventors:
Robert Joseph Hauber - Tampa FL, US
Gerald D. Boydston - Cody WY, US
Assignee:
CERTAINTEED GYPSUM, INC. - Tampa FL
International Classification:
B32B 13/02, B32B 5/02, B32B 7/04
US Classification:
428218, 442 76, 442327
Abstract:
Disclosed is a composite building board construction. The board includes a set gypsum core and a fibrous mat that is pre-coated with a cementitious layer. A thermoplastic coating is then applied over the cementitious layer. Additives can be added to one or more of the layers to provide enhanced performance characteristics. Also discloses are various manufacturing techniques for applying a hot melt thermoplastic coating to cementitious layer.


Gerald Boydston Photo 6

System And Method For Constructing Composite Building Boards Using Thermoplastic Films

US Patent:
2011029, Dec 8, 2011
Filed:
Jun 28, 2011
Appl. No.:
13/170272
Inventors:
Robert Joseph Hauber - Tampa FL, US
Gerald D. Boydston - Cody WY, US
Assignee:
CERTAINTEED GYPSUM, INC. - Tampa FL
International Classification:
B32B 13/04
US Classification:
156 44, 156346
Abstract:
Disclosed are building board manufacturing techniques that minimize the build-up of slurry on associated forming equipment and also produce panels with enhanced physical properties. The methods involve applying a dissolvable film laminate to one or more fiber mats at the outset of the forming process. In the un-dissolved state, the film acts as a containment envelope for the gypsum slurry and any free floating glass fibers. During subsequent curing, the film is dissolved by vaporized water. In its dissolved state, the film is liquefied and coats the fibers of the underlying mat. This results in a building board with improved physical properties.


Gerald Boydston Photo 7

Method For Constructing Composite Building Boards Using Dissolvable Films

US Patent:
2013029, Nov 14, 2013
Filed:
Apr 1, 2013
Appl. No.:
13/854443
Inventors:
Gerald D. Boydston - Cody WY, US
International Classification:
B32B 5/02
US Classification:
156 45
Abstract:
Disclosed are building board manufacturing techniques that minimize the build-up of slurry on associated forming equipment and also produce panels with enhanced physical properties. The methods involve applying a dissolvable film laminate to one or more fiber mats at the outset of the forming process. In the un-dissolved state, the film acts as a containment envelope for the gypsum slurry and any free floating glass fibers. During subsequent curing, the film is dissolved by vaporized water. In its dissolved state, the film is liquefied and coats the fibers of the underlying mat. This results in a building board with improved physical properties.


Gerald Boydston Photo 8

Composite Floor Underlayment With Thermoplastic Coatings

US Patent:
2012030, Dec 6, 2012
Filed:
Jun 8, 2012
Appl. No.:
13/491744
Inventors:
Robert J. Hauber - Tampa FL, US
Gerald D. Boydston - Cody WY, US
Assignee:
CERTAINTEED GYPSUM, INC. - Tampa FL
International Classification:
B32B 13/02, B32B 7/02
US Classification:
428218, 442394
Abstract:
Disclosed is a flooring system consisting of a slab (or base) floor, a floor covering, and a composite underlayment extending between the slab floor and floor covering. The composite underlayment may include, for example, one or more set gypsum layers with embedded fibrous mats. An exterior plastic coating is mechanically adhered to an underlying set gypsum layer. The plastic coating chemically bonds and cross-links with polymer additives within the set gypsum core. The result is an underlayment that is a fully integrated polymer matrix with greatly improved durability and surface strength with only minimal increases in cost or weight.


Gerald Boydston Photo 9

Plastic Coated Composite Building Boards And Method Of Making Same

US Patent:
2013029, Nov 7, 2013
Filed:
Jul 15, 2013
Appl. No.:
13/941950
Inventors:
Gerald D. Boydston - Cody WY, US
International Classification:
B29D 99/00
US Classification:
427299
Abstract:
Disclosed are composite building boards and associated manufacturing methods. The composite boards may include, for example, one or more slurry layers with embedded fibrous mats. An exterior plastic coating is mechanically adhered to the underlying slurry layer. The plastic layer chemically bonds and cross-links with polymer additives within the slurry layer. The result is an integrated polymer matrix with greatly improved durability and surface strength.


Gerald Boydston Photo 10

Method For Constructing Composite Building Boards Using Dissolvable Films

US Patent:
8409391, Apr 2, 2013
Filed:
Jun 7, 2010
Appl. No.:
12/794959
Inventors:
Robert Joseph Hauber - Tampa FL, US
Gerald D. Boydston - Cody WY, US
Assignee:
CertainTeed Gypsum, Inc. - Tampa FL
International Classification:
B32B 37/00, B32B 37/02, B32B 38/00
US Classification:
156253, 156250, 156252, 156256, 156269, 1562722
Abstract:
Disclosed are building board manufacturing techniques that minimize the build-up of slurry on associated forming equipment and also produce panels with enhanced physical properties. The methods involve applying a dissolvable film laminate to one or more fiber mats at the outset of the forming process. In the un-dissolved state, the film acts as a containment envelope for the gypsum slurry and any free floating glass fibers. During subsequent curing, the film is dissolved by vaporized water. In its dissolved state, the film is liquefied and coats the fibers of the underlying mat. This results in a building board with improved physical properties.

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