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:
Mar. 01, 1994

Filed:

Jul. 28, 1992
Applicant:
Inventors:

Sueyoshi Makino, Hamamatsu, JP;

Tateyuki Inagi, Hamamatsu, JP;

Hideo Ishizuka, Shizuoka, JP;

Tadashi Shimada, Toyokawa, JP;

Asashi Nishikiori, Hamamatsu, JP;

Yoshiaki Suwa, Ayabe, JP;

Masahiko Adachi, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23D / ;
U.S. Cl.
CPC ...
29890124 ; 29407 ;
Abstract

A valve assembling and checking method includes the steps of: using air pressure from a nozzle 50 to press a spring 4 against the inner wall of a valve hole 2 to hold the same in a vertical position; moving the spool 3 immediately above the valve hole and allowing the spool to fall from a spool holding means 30, and repeating clamping and unclamping actions to adjust the location of the spool so that the spool is correctly received in the valve hole 2.


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