Abstract: A terminal section for a crossbeam attachable to a vertical column having a plurality of keyhole apertures, by such terminal section, as employed in rack storage systems, which terminal section features a pair of vertically spaced studs with a safety lock disposed through the terminal section therebetween. The safety lock includes a handle portion connected by a stud segment to a latch which is oppositely directed from the handle, such that when the studs and such latch are disposed in a trio of keyhole apertures of the vertical column, and when the handle is disposed downward the latch is upward whereby disengagement can not transpire until the handle is pointed up, and the latch down to permit separation of the terminal section from the vertical column.

Abstract: An insulating panel system, for roof or wall use, includes adjacent insulating panels joined by a connector. The panels include first and second skins adjacent and in contact with opposite faces of an insulating foam core. The first and second skins each terminate in an elongated C-shaped edge. A connector for joining adjacent panels includes an elongated T-shaped channel and an elongated I-shaped channel, for receiving the C-shaped elongated edges of the first and second skins of adjacent panels, and a sheet member joining the T-shaped channel and the I-shaped channel. The foam core is cut away around the C-shaped elongated edges and the remainder of the foam core abuts the sheet member of the connector when the panels are joined. The I-shaped channel and the T-shaped channel each terminates in an elongated lip for retaining the C-shaped elongated edges of the first and second skins. Alternatively both channels may be T-shaped or both channels may be I-shaped.