Abstract: A rectangular housing, containing for instance, electronic communication and measuring devices, is protected from shocks and is made stackable together with like housings by a dumbbell-shaped rubber member at each vertical edge thereof, thickened in each end to protect respective corners of the housing. Each rubber member has metal inserts for bearing upon the housing corners and is screwed or bolted and pinned to the housing. Opposite top and bottom ends of the bumper have cooperable keys and sockets arranged for positive stacking of the bumpers of different housings one atop another. Bumpers of increasing hardness are provided for housings of increasing weight. Tabs are also provided on the housings for direct inter-attachment thereof independently of the rubber members.

Abstract: A housing comprises a generally box-like structure having two end pieces and two elongate members joined thereto. The elongate members each have stiffening ribs or cavities and comprise at least one section cut from an extruded bar of indefinite length, thereby affording the advantage that housings of any desired size can be produced from profiled bars of infinite length.

Abstract: A housing assembly which may be received in a vibration dampening frame is provided with an internal relatively slideable components carrier with one or more slide locks positioned between the components carrier and the housing in such a manner as to limit movement of the components carrier out of the housing to provide an intermediate stop point with the components carrier partially removed from the housing and held in place with respect to the housing. In the embodiment described the housing door which seals tight to the housing is pivotably mounted on the components carrier and slideable therewith.