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:
Mar. 24, 1987
Filed:
Aug. 23, 1984
Charles B Allen, Downers Grove, IL (US);
Scott T Madsen, Burr Ridge, IL (US);
William L Baradice, Jr, Dunwoody, GA (US);
The BOC Group, Inc., Montvale, NJ (US);
Abstract
A substantially uniform blanket of solid carbon dioxide (i.e., snow) is formed by introducing a plurality of low velocity streams of CO.sub.2 solid and gas generally downwardly into a funnel section which exhibits an increasing, generally rectangular cross-sectional area in the direction of flow of the CO.sub.2 streams. Baffle means are provided in the upper reaches of the funnel section and are effective to initially separate the CO.sub.2 streams introduced into the funnel section from one another and to cause the resulting solid carbon dioxide to fall generally downwardly and uniformly throughout the cross-sectional area of the funnel section to thereby form a substantially uniform blanket of CO.sub.2 snow in a container for products to be refrigerated.