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:
Jun. 07, 1988
Filed:
Jul. 13, 1987
Taiyo Sanso Co., Ltd., Osaka, JP;
Abstract
A method for the production of microfine frozen particles comprises filling a vessel with a cold gas which may be a cooled gas or mixed gas obtainable by mechanical refrigeration of a refrigerant gas, air, or the like, atomizing a material to be frozen, such as water, into the cold gas so that the atomized particles become frozen by heat exchange with the cold gas, and collecting the fine frozen particles thus produced. An apparatus for carrying out the method comprises a heat-insulated vessel, a screen dividing the inside of the vessel into a region of cold gas phase and a region of cold gas source, an atomizer for atomizing a material to be frozen into the region of cold gas phase, and a means for filling the region of cold gas phase with a cold gas whether by generating a refrigerant gas by injecting nitrogen gas or the like into a refrigerant contained in the region of cold gas source, or by supplying a cool gas, such as mechanically refrigerated air, to the region of cold gas source, or by ejecting a refrigerant together with a cooled gas into the region of cold gas source, and apparatus for collecting frozen particles.