Abstract: The present invention provides a display assembly including a display screen, a planar light guide, a light source, a light bar, and a frame. The frame is integrally molded with the planar light guide to form a single component, wherein the top and said bottom of the light guide is not obstructed by the plastic frame. The planar light guide is disposed above the display screen and provides mechanical support of the display. The light bar is disposed between the planar light guide and the light source, and acts to couple light from the light source into the planar light guide.

Abstract: An isolation valve assembly for use in a pipeline comprises a valve housing (1) body having inlet (12) and outlet (13) openings. In the housing there is disposed a pair of independently operable rotary valve balls (3) each having a port (25) therethrough. The valve balls (3) are each rotatable between an open position in which the respective port is in communication with the adjacent opening and a closed position in which the valve ball closes the adjacent opening. A valve seat (9, 14) supports each valve ball in the housing and a valve seat retention member (10) is disposed in each of the openings (5). The retention member (10) defines a flow passage (11) therethrough for communication with the adjacent valve ball port and has a first end proximal to one of the valve balls. The first end supports said valve seat and a second end has means for engagement to the pipeline. The arrangement allow a relatively large bore valve assembly to have a length conforming to International Standard ANSI B16.