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.
Patent No.:
Date of Patent:
Jun. 15, 2004
Filed:
Oct. 23, 2002
Applicant:
Inventors:
Akira Enzaki, Tsukuba-gun, JP;
Yoichi Morodomi, Tsukuba-gun, JP;
Assignee:
SMC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 1/24 ; G01L 9/14 ;
U.S. Cl.
CPC ...
G01F 1/24 ; G01L 9/14 ;
Abstract
A magnet is attached to a piston which slides in the interior of a casing due to action of fluid pressure, a guide groove is provided on a side face of the casing in a movement direction of the piston, an indicator is received in the guide groove, and at least one portion of the indicator is formed of a magnetic body, so that the indicator can displace following the piston.