Patent ID: 7536815

Claim:
A sign system comprising: a) a frame comprising at least two mounting strips running substantially parallel to each other; b) at least one sign strip with a front side and a back side, said sign strip having at least one protruding ridge extending continuously along a longitudinal length of the back side from one end of the sign strip to an opposite end of the sign strip, said ridge having a narrow neck portion proximate said back side; c) a plurality of clamping units disposed along a length of said mounting strip, each clamping unit comprising a pair of clamps, a base and a pair of struts, each said clamping unit fixed onto said at least two mounting strips, each of said clamp protruding from said base at an inclined angle and tilting towards the other clamp in the pair to create a pair of opposing clamping forces in a direction parallel to the longitudinal axis of said mounting strips, the clamps further terminating in an enlarged barrel shape, creating a narrow entrance with an expanding space therebetween to receive and clasp said ridge such that said ridge is inserted into the expanding space with the neck extending through the narrow entrance to reversibly but securely fasten said sign strip in a perpendicular direction to said mounting strip; said pair of clamps provided within said pair of struts with each said strut extending and pointing perpendicularly from said base wherein two struts are interposed between each said pair of clamps along said base.