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US 2016/0133408 A1Published application
Pressure switch
AssigneeKabushiki Kaisha Saginomiya Seisakusho
InventorsKenichi Matsuyama, Satoshi Miyakawa, Yoshihiro Hamabe
Life of this patent
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Abstract
In a pressure switch including a diaphragm, when the diaphragm of the pressure switch is inverted, a cross-shaped contact face of a fixed contact comes into contact with an annular contact of the diaphragm at four positions.
Claims5
A pressure switch comprising:
- a housing to accommodate a connection terminal having a fixed contact into an inside of the housing;
- a pressure-receiving chamber communicating with a duct to which an operating pressure is supplied;
- and
- a diaphragm assembly having a diaphragm configured to be displaced in response to a pressure inside the pressure-receiving chamber and provided with a movable contact to come into contact with the fixed contact when the pressure inside the pressure-receiving chamber is equal to or above a predetermined value,
- wherein at least one of the movable contact formed on the diaphragm and the fixed contact has a plurality of radially diverging contact faces.
2 more elements
Dependencies are inferred from the claim text.