Differential pressure triggering device

Details Differential pressure triggering device Differential pressure triggering device

H - Electricity

01

H

H01H 35/24 (2006.01) H01H 35/34 (2006.01) H01H 35/26 (2006.01) H01H 36/00 (2006.01)

Patent

CA 2286966

The differential pressure triggering device has a housing having first and second adjacent inner chambers with respective pressure inlets. A pressure differential responsive diaphragm extends between the inner chambers. An iron disc is positioned inside the first inner chamber and is attached to the diaphragm so as to move along a predetermined displacement course as a result of a deflection of the diaphragm. A trigger unit is mounted outside the housing alongside the first inner chamber. The trigger unit has an actuator and a switch device responsive to a motion of the actuator for producing a triggering action. A magnet is attached to the actuator in magnetic interactive mobile arrangement with the iron disc so that a displacement of the iron disc resulting from a deflection of the diaphragm, causes a corresponding displacement of the magnet, thereby driving the actuator which operates the switch device.

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