Abstract: A joint structure is disclosed for retaining the peripheral edge of a panel member, as is commonly found in sheet metal cabinets and the like. The joint structure includes an elongate member or extrusion having first and second, spaced-apart transverse flanges, the second flange including a base portion and an outer portion extending toward the first flange to form a C-shaped slot between the flanges. The peripheral edge of the panel is located in the C-shaped slot bearing against both flanges, and a threaded fastener is mounted in one of the flanges disposed at an angle to bear against the panel edge portion and urge same into the slot and releasably retain the edge portion therein.

Abstract: A pinless releasable hinge assembly has complementary curved mating surfaces on first and second members, one of the members being hingedly swingable along a generally arcuate path relative to the other member which remains stationary from a closed configuration through a plurality of open configurations defined along said arcuate path; at a limiting release configuration in the arcuate path the swingable member is releasably removable but is captive until the limiting release configuration is reached; a resilient gasket associated with one of the members resiliently, sealingly engages an abutment surface on the other member, in the closed configuration; the hinge assembly can be employed for ready release of a door mounted on one of the members, from an opening, at which the other member is mounted; the gasket forms a tight seal which does not interfere with the operation of the hinge or ready release feature.

Abstract: A pole assembly includes an elongate tubular pole releasably locked or held to a base plate. Spaced apart bores are formed in the tubular pole by forming elongate partial bores and closing same with elongate clamp members. The bores so formed are aligned with bores in the base plate to form aligned bore passages each of which houses a spindle. Each spindle is mounted in the tubular pole and a locking device engages each spindle and the base plate to releasably lock the pole to the base plate via the spindles. The assembly has particular utility in the case of an extruded metal pole wherein bores are not readily formed, and additionally overcomes disadvantages associated with the welding of a pole to a base plate.