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:
Apr. 10, 2018

Filed:

Nov. 04, 2015
Applicant:

Kabushiki Kaisha Saginomiya Seisakusho, Tokyo, JP;

Inventors:

Kenichi Matsuyama, Tokorozawa, JP;

Satoshi Miyakawa, Tokorozawa, JP;

Yoshihiro Hamabe, Sayama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 35/34 (2006.01); H01H 1/06 (2006.01); H01H 1/14 (2006.01);
U.S. Cl.
CPC ...
H01H 35/34 (2013.01); H01H 1/06 (2013.01); H01H 35/343 (2013.01); H01H 35/346 (2013.01); H01H 2001/145 (2013.01);
Abstract

A pressure switch is disclosed. The pressure switch includes a housing and a pressure-receiving chamber that communicates with a duct to which an operating pressure is supplied. The pressure switch also includes a diaphragm assembly with a diaphragm that is displaced in response to a pressure inside the pressure-receiving chamber. The pressure switch also includes a movable contact that comes into contact with a fixed contact accommodated in a center portion of an inside of the housing when the pressure inside the pressure-receiving chamber is above a certain value. One of the movable contact and the fixed contact has radially diverging contact faces that are arranged such that contact between the fixed contact and the moveable contact can be established with at least two of the radially diverging contact faces at the same time.


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