intruding force is released the invention is especially useful in safety accessories for automatic overhead doors garages and the like application_number US 66200503 A description referring now to the preferred version shown in fig1 elongated flexible support 1 is shown attached to base 2 the elongated flexible support 1 has two openings u2014 side opening 3 and end opening 4 in this version photocell 5 is installed in side opening 3 base 2 has holes 6 for screws or other fasteners to fix it to a doorjamb or other structure near the door not shown elongated flexible support 1 is made of a rubbery material preferably tough enough so that if it is bent completely u2014 even more than 90 u00b0 it will spring back to its original shape that is the flexible support 1 has a memory which permits it to resume its original shape and form as soon as a deforming force is released it may be made of tygong silicone rubber or other material having flexibility and memory such that it will spring back to its original shape on removal of a bending or distorting constraint satisfactory materials include materials having a shore hardness a as determined on a durometer of 40 to 80 preferably 50 to 70 although we do not intend to be limited to these ranges as the thickness of the material may also have an.