Abstract: A BBQ Grill comprising two side assemblies each with a lower side panel, an upper side panel, each of the upper side panels being slideably received in respective lower side panels. Cross braces space the panels apart and a grill plate is adapted to detachably engage apertures in the upper side panels. The grill has legs that extend and retract associated with the lower side panels and the upper side panels have a handle assembly with a push button to set pawls of a latch plate at selected apertures associated with the lower side panel. The grill preferably includes a rear wall, a drip tray and fuel support configured with the grill plate to be assembled between the two side assemblies in cooperation with the cross braces selectively connecting the two lower side panels. Various accessories are disclosed. The grill can use wood, charcoal briquettes or gas.

Abstract: Disclosed is a BBQ Grill comprising two lower side panels, two upper side panels that are slideably received in the lower side panels. Crossbraces space the panels apart and a grill plate is adapted to detachably engage hooks on the upper side panels. The grill has legs that extend and retract associated with the lower side panels and the upper side panels have a handle assembly with a button to set pawls of a latch plate at selected apertures associated with the lower side panel. Various accessories are disclosed. The grill can be used with wood, charcoal briquettes or a gas burner.

Abstract: A device for studying the interaction of a fluid flowing in a porous medium surrounded by a membrane and subjected to a confining pressure includes on at least part of the circumferential periphery of the membrane, a groove connected to a pressure tap for measuring or detecting the pressure prevailing at the groove.