Abstract: The present invention provides a sealing plug for liquid-tight sealing off hollow flotation elements of a strip for a cover of a liquid-filled container. The sealing plug comprises an end plate and at least two protrusions extending from the end plate. The at least two protrusions comprise at least two lips. The end plate and the protrusions are formed of a first material and the lips are formed of a second material, the first material being harder than the second material.

Abstract: The invention relates to a portable detection kit including a number of detection strips and at least one device for breaking reservoirs within the detection strips. The detection strips detect and identify chemical air contaminants and comprise a holder. The holder has a plurality of spaced carriers which are capable of absorbing the air contaminants and optionally comprise reagents which can be influenced by the air contaminants. The holder further has a plurality of color-producing agents opposite to the carriers. The agents, in contact with the absorbed air contaminants or with the reagents, can cause a color reaction in the presence of a liquid. The color-producing agents, which are dissolved in the quantities of liquid required for the color reaction, are held in closed reservoirs having easily breakable walls.

Abstract: A shock-resistant support structure for use in a laser scanning head in a laser scanning system for reading bar code symbols readily removably supportably mounts and readily positions a laser tube component for generating a laser light beam, an optical component for optically modifying and directing the laser light beam along a light path, and a scanning component for scanning the laser light beam over a field of view across a bar code symbol, on the support structure, preferably including a pair of support elements which are readily detachably connected, preferably by snap-type action, to each other to facilitate the assembly and the disassembly of the components.