Abstract: A panel-holding strip or sash of extruded plastic composition which includes a pair of opposed channel-forming webs connected by an integral longitudinally coextensive, flexible bight or hinge web; the channel-forming webs being relatively movable in the manner of a book cover between a first open position in which the webs are disposed in angular relation to admit the edge portion of a panel or pane therebetween and a second, closed position in which the webs are frictionally interlocked in channel-forming configuration to hold the edge portion of a panel or pane therebetween; each of the channel-forming webs being formed on their opposing inner surfaces with a first set of relatively engageable and interlocking ribs to frictionally and releasably hold the webs in their closed, channel-defining position and a second set of relatively flexible ribs arranged to frictionally grip and seal the edge portion of a panel or pane positioned between the channel-forming webs of the strip or sash.

Abstract: A manually portable spray tank includes a plug-like adapter mounted in the filler opening or mouth of the tank to receive and hold a pressurized can or canister containing a liquid propellant. The adapter includes a depending, elongated heat exchanger tube or trap which is closed at its lower end and which extends almost to the bottom of the tank for direct heat exchange contact with the liquid contained in the tank. Liquid propellant under pressure flows from the supply can into the heat exchanger tube or trap where it is vaporized by heat from the spray liquid in the tank. The vaporized propellant then passes under relatively high pressure outwardly through a comparatively small opening in the upper end of the heat exchanger tube into the ullage of the tank to pressurize the column of spray liquid in the tank and thereby insure its forcible discharge from the outlet of the spray tank.