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:
Feb. 15, 2000

Filed:

Jul. 10, 1998
Applicant:
Inventors:

Taku Tomita, Tokyo, JP;

Mitsutoshi Araki, Ibaraki-ken, JP;

Naoyuki Yasuda, Ibaraki-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
137321 ; 13750537 ; 220298 ;
Abstract

A recess and another recess having an enlarged diameter with respect to the recess are defined in a main body, wherein a valve guide body is inserted into the recess. Projections of the valve guide body engage inside grooves defined in a wall portion constituting the recess, and second projections of a cover member engage with first projections formed on a wall constituting the other recess, stopping the cover member from falling out. A pressure of a pressurized fluid which is imposed on the valve guide body is supported by the cover member. As a result, there is no concern of damage to the valve guide body, and moreover, there is no concern of unexpected dislocation of the valve guide body.


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