Importance

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Abstract

A lower steel plate casing has a housing attached to a back plate secured to a door and defines an enclosed chamber defining a channel portion through which a portion of an operating handle of a swing door keeper bar passes. An upper steel plate casing has a housing and is pivoted to the back plate. The upper casing housing defines a further enclosed chamber having a further channel portion through which a portion of the handle passes in cooperation with the lower casing channel portion in a housing locking position. A bolt seal has a head fixed to a shank and a lock body releaseably attached to the shank for locking the two housings together. The shank is laterally protected by the enclosed chambers and axially protected by the head at one shank end and the lock body at the other shank end and by various housing plates having apertures in which the head, lock body and the bolt shank are received.

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First Claim