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:
Sep. 04, 2001
Filed:
Mar. 23, 2000
Masayuki Okitsu, Ibaraki, JP;
SMC Corporation, , JP;
Abstract
A gage-in-handle type pressure reducing valve wherein a feedback chamber and a pressure gage are communicated with each other through a communicating passage between a feedback member and a pressure gage guide without using a pressure introducing hole in a valve body wall or a bonnet wall, and which is capable of minimizing friction occurring in a mechanism for converting the rotation of a handle into an axial movement of a pressure regulating spring retainer. A pressure gage guide is connected to the pressure gage. The feedback member is formed with a communicating hole communicating with the feedback chamber. The communicating hole is communicated with the pressure gage guide through a communicating line. A pressure regulating nut is rotatably supported in a bonnet. The pressure regulating spring retainer is supported in the bonnet so as to be axially movable but unable to rotate. Rotation of the handle causes the pressure regulating nut to rotate, and this, in turn, causes the pressure regulating spring retainer to move axially.