The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2011
Filed:
Feb. 27, 2009
Timothy D. Tonyan, Wheaton, IL (US);
William A. Frank, Lake Villa, IL (US);
Ashish Dubey, Grayslake, IL (US);
Cesar Chan, Vernon Hills, IL (US);
Bartley P. Durst, Clinton, MS (US);
Pamela G. Kinnebrew, Vicksburg, MS (US);
Toney K. Cummins, Vicksburg, MS (US);
Nicholas Boone, Vicksburg, MS (US);
William F. Heard, Clinton, MS (US);
Michael J. Roth, Raymond, MS (US);
James L. Davis, Vicksburg, MS (US);
Timothy D. Tonyan, Wheaton, IL (US);
William A. Frank, Lake Villa, IL (US);
Ashish Dubey, Grayslake, IL (US);
Cesar Chan, Vernon Hills, IL (US);
Bartley P. Durst, Clinton, MS (US);
Pamela G. Kinnebrew, Vicksburg, MS (US);
Toney K. Cummins, Vicksburg, MS (US);
Nicholas Boone, Vicksburg, MS (US);
William F. Heard, Clinton, MS (US);
Michael J. Roth, Raymond, MS (US);
James L. Davis, Vicksburg, MS (US);
U.S. Gypsum Company, Chicago, IL (US);
Abstract
A cementitious panel with ballistic and blast resistant properties having a core layer of ultra-high compressive strength composite and at least one skin layer. The panels can also be used in walls, ceiling and flooring panels which require high compressive strength for resistance to earthquakes and surfaces resistant to surface abuse such as in prison and other institutions. The panel core layer has a continuous cementitious phase resulting from the curing of an aqueous mixture, in the absence of silica flour, of inorganic cement binder, inorganic mineral filler having a particle size of about 150-450 microns, a pozzolanic mineral filler, polycarboxylate based superplasticizer, alkanolamine and acid or alkali metal acid salt; and water. The mixture may be uniformly reinforced with fiber added before curing. The cementitious core layer is then reinforced with the skin, such as fiber reinforced polymer, attached to at least one panel surface.