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.

Date of Patent:
Oct. 19, 1993

Filed:

Mar. 30, 1992
Applicant:
Inventors:

Kazuo Takemasa, Ohta, JP;

Yutaka Ohmori, Ohta, JP;

Jiro Yuzawa, Ohizumi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
252 67 ; 62114 ;
Abstract

A refrigerant composition consisting essentially of chlorodifluoromethane, 1-chloro-1, 1-difluoroethane and octafluoropropane, said composition, while preventing the bad influence on ozone layer and maintaining the environment of working place in a nonhazardous condition, can be used as a substitute for R500 or R502 owing to the obtainability of the desired refrigerating capacity and a good return of oil.


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