Abstract: An all plastic shelf is part of a shelving system and is provided for uses where metal shelves might rust or corrode, especially if attacked by hostile chemicals. The underside of the plastic shelf has a channel formed around the periphery thereof. A welded metal frame fits into the channel, with either the width of the frame or a cover plate substantially covering the channel in order to prevent an entry of foreign matter therein. Sockets are formed in the corners of the frame to receive corner posts for supporting the shelf. These sockets fit into corner sockets which are molded into the metal frame.

Abstract: A spray head assembly is made from a very few number of injection molded parts. Preferably a pair of elongated housing shells fit together in face-to-face confrontation, with a spring biased actuator arm or control lever pivotally mounted between them. The lever has a metal shaft extending therefrom, which passes through a flexible cone in a rubber bulkhead to maintain a waterproof seal. In front of the bulkhead is a solid plastic plate having mounted therein a reciprocally slidable member controlled by the lever. In one embodiment, the sliding member contains a generally triangular or tapered opening or openings having a sector of a circle for a base. Depending upon the position of the slide, the opening moves up or down to open or close a water passageway through the spray head. The sliding member first presents the smaller sectors of the opening or openings to an associated sealing ring to minimize the abruptness of any change in discontinuity of water flow at the edge of the opening.

Abstract: A spray head assembly is made primarily from a very few number of injection molded parts. Preferably a pair of elongated housing shells fit together in face-to-face confrontation, with a spring biased actuator arm or control lever pivotally mounted between them. The lever has a metal shaft extending therefrom, which passes through a flexible cone in a rubber bulkhead to maintain a waterproof seal. In front of the bulkhead is a solid plastic plate having mounted therein a reciprocally slidable member controlled by the lever. The sliding member contains a generally triangular or tapered opening having a sector of a circle for a base. Depending upon the position of the slide, the opening moves up or down to open or close a water passageway through the spray head. The sliding member first presents the apex of the opening to an associated sealing ring to minimize the abruptness of any change in discontinuity of water flow at the edge of the opening.

Abstract: A pre-rinse hose for use in the food service industry is provided. A core section is formed from an inner tube extruded from a rubber compound, a layer of textile braid applied to the inner tube and an outer tube extruded from a rubber compound over the textile braid. A steel braid is applied around the outer tube and a cover of polyvinyl plastic material is extruded over the steel braid. A hollow stem is held in each end of the hose by a ferrule which is crimped and compressed over the hose ends. A wrench-faced nut is disposed on each hollow stem to connect one end of the hose to a faucet and the other end to a pre-rinse spray head. A spring is applied around the end of the hose connected to the faucet to reinforce the hose against breakage.