Abstract: The present invention provides a method and apparatus for removing a test plug from a vent when positioned at a remote location with respect to the vent. The apparatus includes a cover having a handle section and base, the cover being visible from a remote location with respect to the vent. The apparatus further includes a retainer coupled to the cover by a connecting sleeve. The test plug is maintained between the cover and retainer and is removable from the vent by forcibly engaging the apparatus with a retrieval device configured to extend from the remote location to the vent.

Abstract: The present invention provides a quick-connect pressure test apparatus. The apparatus includes a test plug having a set of sealing rings extending around a sidewall thereof for fitting within an inner diameter of a pipe. The test plug has a first end having a receiving cavity in communication with a central lumen that extends through the test plug to a second end thereof. A retainer is configured to sit on an end section of the pipe, having a plurality of retaining arms flexibly extending about an outer diameter of the pipe. A slide compressor is configured to receive the retainer within a cylindrical cavity, urging the retaining arms to frictionally engage the outer diameter of the pipe and maintain the test plug within the pipe. A plug handle or, alternatively, a pressure coupler may be received in the receiving cavity of the test plug.

Abstract: A trailer locking system includes separate sections releasably coupled to provide locking frames that secure trailers against unauthorized entry through side doors and rear doors. The sections include frame members adapted for releasable coupling to other frame members to form the locking frames, along with support structure for selectively locating the locking frames relative to the trailer body. The locking frames can surround their associated trailers, or may span the width of the doors they are intended to secure. Locking frames that surround the trailers can be supported by ground engaging legs independently of the trailer, or by support members along the trailer top and sides that additionally provide a carrier for equipment and supplies. Adjacent frame members are releasably joined by coupling plates and stabilizing pins mounted to selected coupling plates.