Patent ID: 6742227
Filing Date: 2004-06-01
Classification: A41D,A44B,A44D,B64C,C08L,F16B,F16F,H01L,Y10T

Abstract:
A releasable fastener system comprising:a loop portion comprising a support and a loop material disposed on a surface therein; a hook portion comprising a support and a plurality of hook elements disposed on a surface of the support, wherein the plurality of hook elements comprise a magnetorheological fluid, a magnetorheological elastomer, or combinations comprising at least one of the foregoing materials adapted to change a shape orientation of the hook elements upon receipt of a magnetic signal; and an activation device coupled to the plurality of hook elements, the activation device being operable to selectively provide the magnetic signal to the hook elements and effectuate a change in the shape orientation of the hook elements to reduce or increase a shear force and/or a pull-off force of an engaged hook and loop portion.