Abstract: A self-contained alarm/annunciator system for a door provides an alarm function and a flashing LED when the door is locked to deter attempted burglary, and an annunciator function operable when the door is unlocked to indicate attempted door opening.

Abstract: A door frame construction in which the jambs, threshold, lintel, and trim are of molded construction. The door frame may be molded in one piece and the jambs are provided with clips for attaching the jambs to studs framing the door opening. The clips are adjustably mounted on the jambs so that the door frame may be positioned properly despite misalignment of the studs to which the frame is attached. The jambs also carry clips for attaching the trim to the door frame, and these clips and the clips for mounting the frame on the studs may be formed integrally from a single strip of metal. The side and head trim are preferably formed separately and joined at the job site by means of a special corner construction which allows them to be joined without nails, screws or other external fasteners.

Abstract: A composite sill assembly including a core covered by an extruded section of aluminum cladding and a cover plate of brass fastened to the outer surface of the cladding to improve the appearance of the assembly without appreciably increasing its cost. Opposing surfaces of the cover plate and cladding are isolated from each other to prevent corrosion through galvanic action and this may be accomplished by adhering the cover plate to the cladding with a double faced adhesive tape of foamed neoprene or other suitable material. In this construction the tape therefore serves the dual function of both securing the plate to the cladding and isolating the two members from each other to prevent galvanic reaction and corrosion.