Patent ID: 8556234
Filing Date: 2013-10-15
Classification: A62B

Abstract:
1. A descent control device for controlling movement of a load along a path defined by a cable extending from an initial high point to a terminal low point, the device comprising: (a) drive pulley rotatable about an axis for engaging and traversing the cable; (b) an axle in fixed rotational engagement with the pulley and extending on either side thereof along the axis; (c) at least one substantially planar ferromagnetic moving element positioned on each side of the pulley in fixed rotational engagement with the axle, the at least one moving element comprising at least one recess formed in a surface thereof, and at least one magnet fixedly disposed within the recess; and (d) at least one conducting frame element disposed proximate to each moving element whereby an eddy current is induced by rotational movement of each moving element relative to the corresponding at least one frame element in a direction to oppose acceleration of the pulley as the pulley rotationally engages the cable.