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. 30, 1996
Filed:
Jan. 21, 1994
Applicant:
Inventors:
Tadamoto Tamai, Tokyo, JP;
Yoichiro Ikeya, Houya, JP;
Assignee:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134-7 ; 134-2 ; 134 21 ; 451 39 ; 451 40 ;
Abstract
Argon gas and nitrogen gas are mixed together and cooled by a cooler to a liquefying temperature of argon gas specific to its pressure, to form argon fine droplets in the mixed gas. The gas is then jetted out of nozzles and blown into a vacuum chamber to adiabatically lower the temperature further and change fine droplets to solid fine particles which are used to clean the surface of an object.