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:
Oct. 05, 1999
Filed:
Dec. 24, 1997
Applicant:
Inventors:
Shoji Sekihara, Tokyo, JP;
Saburo Hayakawa, Tokyo, JP;
Makoto Toriumi, Tokyo, JP;
Toshiyasu Suzuki, Tokyo, JP;
Assignee:
Nippon Sanso Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25C / ;
U.S. Cl.
CPC ...
239-22 ; 239 142 ; 239499 ;
Abstract
Disclosed are a method of making CO.sub.2 snow by injecting liquefied CO.sub.2 into a snow horn from the ceiling of the snow horn having an opening at the lower end to effect adiabatic expansion and an apparatus therefor. Liquefied CO.sub.2 is injected radially outward so that it may flow along the curved internal surface of the ceiling and continuously along the internal surface of the snow horn and that effusive flows of liquefied CO.sub.2 may flow independently at the inner upper part of the snow horn and may be combined partly with one another at the inner lower part of the snow horn.