Abstract: The present invention is directed to a child resistant double seam container lid including an adapter ring for securely affixing to the double seam top rim of conventional double seamed containers that will be difficult for children to open, yet readily openable by adults. More particularly, a one-piece, two-piece, and three-piece child resistant double seam affixable container lid is provided having a first piece lid portion first, a second piece adapter ring locking member second piece and optionally a third piece securing unit piece, with rotational alignment indicators, and optional additional integral features such as a liquid measuring cup feature, a liquid tight lid feature, a threaded lid portion, a replaceable double seam container lid portion and a double seam container lid locking member adapter ring securely affixable to the double seam container.

Abstract: Apparatus suitable for inspecting the positional accuracy of a hole or passage in a workpiece comprising workpiece support means and a probe assembly. The probe assembly comprises two parallel tubes; one provided with a thermistor bead maintained at a temperature higher than ambient and the other provided with a nozzle adapted so as to direct a jet of air on to the thermistor bead. The tubes are positioned on each side of a workpiece to be inspected so that as the tubes are traversed across the workpiece, the jet of air is prevented from impinging upon the thermistor bead. However when a hole or passage in the workpiece is spanned by the nozzle and thermistor bead, the air jet will impinge upon the thermistor bead, thereby cooling it and hence providing a signal that a hole or passage has been encountered.