Abstract: A retractable safety latch is disclosed and includes a base mounting member having perpendicular base walls, a draw bar guide attached to the mounting base member by a hinge, a draw bar having an arcuate hook on one end and an eccentrically positioned oblong hole on the other end slidably mounted on the draw bar guide, a rotatable shaft mounted on the draw bar guide and having an eccentrically mounted pin extending through the oblong hole for driving and retaining the draw bar in the draw bar guide, and a handle having a safety catch pivotably mounted on the rotatable shaft. Between the handle and the rotatable shaft is a spring for the purpose of biasing the handle in one direction with respect to the rotatable shaft so that when the latch is closed, the handle is in contact with the perpendicular base walls and the safety catch catches on one of the perpendicular base walls to prevent the rotatable shaft on which the handle is mounted from rotating and opening the latch.

Abstract: The present invention is an edge extrusion which is attached on the peripheral rim and to the sidewall of a shell of a plastic container. The edge extrusion has either a male or female joining edge. A rubber gasket is placed between the male and female joining edges in order to seal the plastic container. The present invention also includes casing hardware such as hinges, clamp assemblies and handles, all of which have a base which is adapted to be attached and secured to the edge extrusion without the use of rivets or epoxy. The edge extrusion has a pair of L-shaped flanges, oppositely disposed to each other and parallel to the plane of the sidewall of the container. The base is a rectangular member adapted to loosely slide between the two L-shaped flanges and it has a set of flanges protruding from one of its longitudinal sides.