Abstract: An elongated, electrically conductive, inwardly protruding hollow channel defining an interior chamber is mounted to the lower edge of a one-piece garage door. Mounted within the chamber is a contact strip extending longitudinally along the channel and disposed below the center line thereof such that deflection interiorly of the wall of the channel upon contact with an obstructing object will cause it to engage the contact strip. The channel is optionally mounted to a base perpendicularly extending away from the plane of the door to provide early warning of a contact with an obstructing object.

Abstract: An electrically insulating base for mounting to the lower edge of a one-piece garage door and formed with an elongated, electrically conductive, inwardly protruding elliptical in cross section hollow symmetrical channel formed with an interior chamber. Mounted within the chamber is an elongated J-shaped strip contact extending longitudinally relative the channel and disposed below the center line thereof such that deflection interiorly of the wall of the channel will cause the wall to engage the strip contact.

Abstract: First and second generally harp shaped guard halves, one being formed with a vertical mounting flange for attachment to the garage door jamb adjacent the hardware to be shrouded and each being formed with co-extensive planar walls projecting along the opposite sides of the hardware and formed with inturned peripheral flanges rounding the top and vertical length thereof for complementally mating together to generally shroud the hardware within such guard apparatus.