Patent ID: 7500505

Claim:
A system for limiting retracting movement of a roller in a covering for an architectural opening comprising in combination: a head rail; a roller mounted in said head rail for reversible rotating movement between extended and retracted positions, said roller having a flexible shade material mounted thereon so as to be wrappable about said roller in said retracted position and unwrapped from said roller in said extended position, said shade material having a first edge connected to said roller and a second opposite free edge having a bottom rail thereon, and a unitary adjustable stop, said stop having a main body connected to said head rail and a secondary body pivotally connected to said main body, said secondary body having an abutment portion variably spaceable from said main body and being positionable adjacent to said shade material in said retracted position, said secondary body or said main body including serrated teeth and the other of said secondary body and main body including a catch finger for releasable engagement with individual ones of said serrated teeth to vary the spacing of said abutment portion from said main body.