Abstract: Disclosed is a covering system that includes plural supports and a cable. The cable may be advanced or retracted. The cable is connected, preferably by a fixed support, to a portion of the cover, whereby the cover may be advanced or retracted by moving the cable. At least some, preferably all, of the supports other than the terminal support are disposed in collars, the collars for the non-connected supports being threaded onto the cable. The collars and supports may be decoupled to permit removal of a support without the need to un-thread the collar and without the need to disturb other supports. The collars include plural separable cable sleeve portions that may be decoupled from one another to permit removal of the collar from the cable without un-threading the cable from other supports.

Abstract: Disclosed is a container covering apparatus that permits one-handed unrolling and rolling of a cover over a container. Generally, the apparatus includes a roller and a rollable cover connected to the roller. Preferably, the cover is normally biased towards the unrolled position. The apparatus further includes a crank assembly having a crankshaft, a releasable locking mechanism, and a brake. The locking mechanism is engaged when the crankshaft is rotated in a first direction. When the crankshaft is rotated in the opposing second direction, the locking mechanism is disengaged, and the operator may engage the brake. In another embodiment, a covering apparatus including a crankshaft operatively coupled to a roller mechanism is disclosed. The crankshaft handle includes an arm portion and a gripping portion. The gripping portion is moveable between a first and second position.

Abstract: An air return bulkhead is disclosed which may be adapted to fit on differently-sized trailer walls around differently-sized trailer refrigeration units. The bulkhead includes an upper support panel with ridges or other discontinuities thereon. The discontinuities bound areas sized to accommodate standard refrigeration units, and a cutting tool may be easily guided along these discontinuities to form a space wherein the refrigerator may be fit when the bulkhead is mounted to the trailer wall. Also disclosed is a bulkhead which includes flutes and columns thereon wherein the ends of the flutes and columns may be removed by use of a cutting tool to allow the bulkhead installer to tailor the airflow into the refrigerator inlet as desired.

Abstract: An air return bulkhead is adapted to fit on differently-sized trailer walls around differently-sized trailer refrigeration units. The bulkhead includes an upper support panel with ridges or other discontinuities thereon. The discontinuities bound areas sized to accommodate standard refrigeration units, and a cutting tool may be easily guided along these discontinuities to form a space wherein the refrigerator may be fit when the bulkhead is mounted to the trailer wall. Also, a bulkhead which includes flutes and columns thereon wherein the ends of the flutes and columns may be removed by use of a cutting tool to allow the bulkhead installer to tailor the airflow into the refrigerator inlet as desired.