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. 08, 1993
Filed:
Mar. 04, 1992
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D / ;
U.S. Cl.
CPC ...
62 63 ; 62121 ; 62304 ;
Abstract
A device for and a method of producing hyperfine frozen particles reduces the quantity of impurity particles in the hyperfine frozen particles produced and stabilizes the generation of hyperfine frozen particles. A hopper includes a heat exchanger through which a coolant, such as nitrogen gas or liquid nitrogen, is circulated. A nitrogen gas inlet through which low temperature nitrogen gas as a coolant is supplied includes a filter to produce a laminar flow of the gas.