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. 01, 2003

Filed:

Jul. 19, 2000
Applicant:
Inventors:

Masamichi Yano, Tokyo, JP;

Masakatsu Minowa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 4/104 ;
U.S. Cl.
CPC ...
F25B 4/104 ;
Abstract

A thermal expansion valve includes an adsorbent ′ placed inside a temperature sensing unit , wherein an activated carbon having pore sizes fit for the molecular sizes of a temperature-responsive working fluid sealed inside the temperature sensing unit is utilized as said adsorbent ′, so that the adsorption quantity of the adsorbent will be fixed.


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