Patent ID: 6279403
Filing Date: 2001-08-28
Classification: G01L

Abstract:
A differential pressure triggering device, comprising:a housing having first and second adjacent inner chambers, and first and second pressure inlets communicating respectively with the first and second inner chambers;a pressure deflectable member extending between the inner chambers, the deflectable member being responsive to a pressure differential between the inner chambers;a first magnetic member positioned inside the first inner chamber and attached to the deflectable member so that a deflection of the deflectable member displaces the first magnetic member along a predetermined displacement course inside the first inner chamber;a trigger unit mounted outside the housing alongside the first inner chamber, the trigger unit including an actuator and a switch means responsive to a motion of the actuator for producing a triggering action; anda second magnetic member attached to the a actuator in magnetic interactive mobile arrangement with the first magnetic member so that a displacement of the first magnetic member along the displacement course, resulting from a deflection of the deflectable member, causes a corresponding displacement of the second magnetic member, thereby driving the actuator which operates the switch means.