Brian H Randall

US Patent:

53199006, Jun 14, 1994

Filed:

May 6, 1993

Appl. No.:

8/058898

Inventors:

Charles W. Lehnert - Fort Myers FL
Brian G. Randall - Stone Mountain GA

Assignee:

Georgia-Pacific Corporation - Atlanta GA

International Classification:

E04B 204

US Classification:

52408

Abstract:

Finishing systems and roof decks are provided which include a gypsum board having a set gypsum core faced with a fibrous mat. The gypsum core includes one or more additives which are effective in simultaneously improving the water and fire resistance of the board. In preferred embodiments, the board has sufficient water-resistant additive for absorbing less than about 10% water in an ASTM C-473 test.

US Patent:

57911096, Aug 11, 1998

Filed:

Nov 6, 1996

Appl. No.:

8/744510

Inventors:

Charles W. Lehnert - Fort Myers FL
Brian G. Randall - Stone Mountain GA

Assignee:

Georgia-Pacific Corporation - Atlanta GA

International Classification:

E04C 202

US Classification:

5230917

Abstract:

Finishing systems and roof decks are provided which include a gypsum board having a set gypsum core faced with a fibrous mat. The gypsum core includes one or more additives which are effective in simultaneously improving the water and fire resistance of the board. In preferred embodiments, the board has sufficient water-resistant additive for absorbing less than about 10% water in an ASTM C-473 test.

US Patent:

53719891, Dec 13, 1994

Filed:

Feb 19, 1992

Appl. No.:

7/838551

Inventors:

Charles W. Lehnert - Fort Myers FL
Brian G. Randall - Stone Mountain GA

Assignee:

Georgia-Pacific Corporation - Atlanta GA

International Classification:

E04C 100

US Classification:

5230917

Abstract:

An exterior finishing system for a building, including particularly an exterior insulation system, which includes a fibrous mat-faced gypsum board, preferably a board in which the set gypsum core thereof is water resistant, and preferably one in which the set gypsum core is sandwiched between two sheets of porous glass mat, with the outer surface of at least one of said mats being substantially free of set gypsum, and means for preparing the board, including control of the viscosity of the aqueous gypsum slurry from which the set gypsum core of the board is formed. Also, the use of fibrous mat-faced gypsum board as the shaft liner panel in a shaft wall assembly.

US Patent:

56448805, Jul 8, 1997

Filed:

Jun 7, 1995

Appl. No.:

8/480800

Inventors:

Charles W. Lehnert - Fort Myers FL
Brian G. Randall - Stone Mountain GA

Assignee:

Georgia-Pacific Corporation - Atlanta GA

International Classification:

E04B 500

US Classification:

52408

Abstract:

Finishing systems and roof decks are provided which include a gypsum board having a set gypsum core faced with a fibrous mat. The gypsum core includes one or more additives which are effective in simultaneously improving the water and fire resistance of the board. In preferred embodiments, the board has sufficient water-resistant additive for absorbing less than about 10% water in an ASTM C-473 test.

US Patent:

57041792, Jan 6, 1998

Filed:

Jan 26, 1994

Appl. No.:

8/187199

Inventors:

Charles W. Lehnert - Fort Myers FL
Brian G. Randall - Stone Mountain GA

Assignee:

Georgia-Pacific Corporation - Atlanta GA

International Classification:

E04B 700
E04B 204

US Classification:

52408

Abstract:

Finishing systems and roof decks are provided which include a gypsum board having a set gypsum core faced with a fibrous mat. The gypsum core includes one or more additives which are effective in simultaneously improving the water and fire resistance of the board. In preferred embodiments, the board has sufficient water-resistant additive for absorbing less than about 10% water in an ASTM C-473 test.