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. 08, 2002

Filed:

Jan. 16, 1997
Applicant:
Inventors:

Norihide Fujiyama, Osaka, JP;

Tadashi Kousaka, Osaka, JP;

Takazo Sotojima, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 9/00 ;
U.S. Cl.
CPC ...
F25B 9/00 ;
Abstract

Insertion holes ( ) into which a connection pipe ( ) are inserted are formed from a casing ( ) to a cylinder ( ). The connection pipe ( ) has a flange ( ) formed on the outer periphery at a set distance from the end of the connection pipe ( ). With the flange ( ) in contact with the wall outer surface of the casing ( ), the end part of the connection pipe ( ) is inserted into the insertion holes ( ). Between the flange ( ) and the wall outer surface of the casing ( ), an O-ring ( ) is fit so as to surround an internal passage ( ) of the connection pipe ( ). Another O-ring ( ) is fit between the end part of the connection pipe ( ) and the insertion hole ( ) of the cylinder ( ).


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