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:
Apr. 24, 1990
Filed:
Mar. 02, 1989
David C Young, Westminster, CO (US);
Mark A Willcoxen, Lakewood, CO (US);
Adolph Coors Company, Golden, CO (US);
Abstract
A self-generating gas pressure apparatus such as an expandable closed pouch for placement within a container from which a flowable material therein is to be dispensed under pressure. The apparatus has a plurality of internal compartments formed by pressure-rupturable seals and containing two respective chemical compounds which, when mixed, produce a gas. One of the chemical compounds is in aqueous solution, while the other is a precipitate present in a water-dispersible suspension medium such as a gum, an algin, pectin, or mixtures thereof. The suspension provides for uniform dispersal of the precipitated chemical and a resultant effective reaction rate with the aqueous chemical reactant.