Patent ID: 7654021
Filing Date: 2010-02-02
Classification: G01B

Abstract:
1. An image retainer comprising: a plurality of retainer plates each having a respective multiplicity of openings and displaceable relative to one another in a first plane between a first position, in which the openings of the plurality of plates are aligned in a second plane extending transversely to the first plane, thereby forming a plurality of parallel rows of openings in the second plane, and a second position, in which the openings are misaligned; a plurality of parallel pins each having a respective shank and a pair of spaced opposite pinheads each extending radially outwards from the respective shank, the plurality of pins each being inserted through a respective row of aligned openings in the first position of the plurality of plates and having a respective shank frictionally engaged by the plurality of plates in the second position thereof, wherein the plurality of pins are frictionally displaceable in the second plane to an impressed position of the plurality of pins in response to applying a load to one of the spaced opposite pinheads in the second position of the plurality of plates, thereby recreating a 3-D image of the load upon removing the load; and a retaining assembly operative to move in the first plane upon displacement of the plurality of pins to the impressed position and lock the pins therein, wherein the plurality of pins displaced in the impressed position are displaceably arrested to retain the 3-D dimensional image upon removing the load regardless of a spatial position of the image retainer, wherein the retainer assembly includes an actuator and a retaining element extending between the plurality of retainer plates, wherein the retaining element of the retainer assembly is a lock plate provided with a plurality of apertures, the plurality of apertures each being traversed by a respective one of the plurality pins, the lock plate being coupled to the actuator so that when the actuator is rotatable in one direction, the lock plate is displaced to a position in which a peripheral wall of each of the plurality of apertures presses against and arrests displacement of the plurality of pins. and when the actuator is rotatable in an opposite direction, the lock plate is displaced to unlock the pins.