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:
Nov. 28, 1995
Filed:
May. 23, 1994
Applicant:
Inventors:
Yuji Yoshida, Itami, JP;
Masami Funakura, Hirakata, JP;
Kazuo Nakatani, Kadoma, JP;
Minoru Tagashira, Hirakata, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
252 67 ; 62114 ;
Abstract
A working fluid containing chlorotetrafluoroethane and at least two fluorinated hydrocarbons having a boiling point of not higher than -40.degree. C. under atmospheric pressure selected from the group consisting of methane derivatives and ethane derivatives which consist of one or two carbon atoms, hydrogen atoms and fluorine atoms, which has very small influence on the ozone layer in the stratosphere and decreased flammability and is suitable as a substitute working fluid for chlorodifluoromethane.