Patent ID: 6723979
Filing Date: 2004-04-20
Classification: H01H,H03K

Abstract:
An electromechanical roll sensor comprising:a housing defining a first cavity; a source for generating a signal beam; a receiver for detecting the signal beam: a first cylindrical member disposed substantially horizontal within the first cavity between the source and the receiver and having a first window extending therethrough, wherein said first cylindrical member is located in a first position during a non-armed condition such that the signal beam passes through the first window, and said first cylindrical member is movable to a second position during an armed condition such that the signal beam is prevented from passing through the first window to the receiver, wherein the first cylindrical member is movable to the second position by rolling on an inclined surface; a second cylindrical member disposed substantially horizontal within a second cavity in said housing between said source and said receiver and having a second window for allowing said signal beam to pass therethrough, wherein the second cylindrical member is located in a first position during a non-armed condition such that the signal beam passes through the second window, and said second cylindrical member is movable to a second position during an armed condition such that the signal beam is prevented from passing through the second window; and an output for generating an arming signal when said signal beam is prevented from passing to the receiver.