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. 02, 1976
Filed:
Aug. 29, 1974
Mark Plunguian, BOTH OF, Alexandria, VA (US);
Charles E Cornwell, BOTH OF, Alexandria, VA (US);
Other;
Abstract
A cellular product useful for such purposes as fire resistance, thermal insulation, and acoustical sound proofing may be produced from a mineral cement, such as gypsum cement, portland cement, calcium aluminate cement, or magneisa cement, an organic film former such as guar gun, or an inorganic film former such as bentonite, a mixture of nonionic and anionic surfactants, a lightweight aggregate, such as perlite, vermiculite, or hollow silicate spheres, and air in amount substantially in excess of that used in air entrainment of cement, whereby the product has a density which is only a small fraction of the density of the mineral cement and aggregate composition per se.