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:
Apr. 22, 2003

Filed:

Apr. 13, 2001
Applicant:
Inventors:

Akira Fujitaka, Shiga, JP;

Yoshinori Kobayashi, Shiga, JP;

Riko Tachigori, Shiga, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 1/00 ; F28F 1/308 ;
U.S. Cl.
CPC ...
F25B 1/00 ; F28F 1/308 ;
Abstract

In an air conditioner using a flammable refrigerant of the present invention, an inner diameter of a liquid-side connecting pipe is reduced to less than 42.5% of that of a gas-side connecting pipe. By reducing the inner diameter of the pipe in which a liquid refrigerant of the air conditioner is reduced, it is possible to reduce the amount of refrigerant to be charged into the system without decreasing the capacity and the efficiency.


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Fujitaka, Akira. (2003). Air conditioner using flammable refrigerant (U.S. Patent No. 6550273). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6550273

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