Patent ID: 9726516
Date: 2017-08-08
CPC Classifications: B64D,G01D,H01H

Claim:
1. An electromechanical differential motion sensor disposed to detect transverse motion of a first piece relative to a second piece, the electromechanical shear fuse system comprising: a base disposed to be anchored to the first piece, and having a first jaw; a lever arm extending from the base to engage the second piece, and having a second jaw; a hinge disposed along a hinge axis and pivotally connecting the lever arm to the base, such that the lever arm rotates relative to the base when the second piece displaces laterally with respect to the first piece; a retention mechanism disposed between the base and the lever arm and configured to supply a retention load that retains the electromechanical differential motion sensor in a closed position wherein the first jaw is aligned with the second jaw; a first fuse wire configured to carry a first electrical signal current, and extending through the first jaw and the second jaw, such that transverse movement of the second piece relative to the first piece sufficient to overcome the retention load deflects the second jaw relative to the first jaw from the closed position to an open position wherein the first jaw is not aligned with the second jaw, thereby severing the first fuse wire.