Abstract: A lateral file cabinet hinge that secures the file drawers in an open position or in a closed position. The means to secure the drawer in a closed position also slows the drawer before it is fully closed.

Abstract: A slide valve for controlling fluid flow, useful especially but not exclusively where high precision and high quality performance are required, as in scientific or medical apparatus and equipment. A valve body, preferably of plastic material, has a channel for receiving a valve slide assembly, the channel providing two surfaces parallel to and spaced from each other. The flow ports to be controlled open onto these two surfaces. The valve slide is an assembly of three members in overlying relation like a sandwich, the outer members or layers being of low-friction plastic material such as "Teflon," the inner or center member being of resilient compressible material (e.g., urethane, or silicone rubber) dimensioned to be under compression when the valve slide is in its channel, so that the resilience of the central layer of the slide serves to keep the outer layers constantly pressed firmly against the body surfaces on which they slide. Ports are formed in the slide assembly.