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:
Aug. 17, 2004

Filed:

Jul. 08, 2003
Applicant:
Inventors:

Kazuto Kobayashi, Tokyo, JP;

Kazuhiko Watanabe, Tokyo, JP;

Masamichi Yano, Tokyo, JP;

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

An expansion valve comprises a housing having refrigerant paths and a cassette unit . The cassette unit comprises a flange and a tube member formed integrally thereto. An adjustment plate member is mounted to the small-diameter end of the tube member having steps, the plate member having an external thread formed thereto. A bottom portion of the inner bore of the housing for mounting the cassette is provided with an internal thread . A head portion of the lid member of the cassette unit has a hexagonal shape, which enables the cassette unit to be screwed onto the housing using a tool such as a wrench.


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