Gaplast Gmbh

Caplast Gmbh

Christoph Heiland

Roland Kneer

The applicator is assembled from an integral injection-molded part which includes an elongated flat strap from which a piston member projects at a right angle to one side and, at some distance therefrom, a cylinder member including a canula molded thereon projects at a right angle to the other side. The strap forms two spring arms of which the one, being bent by 180.degree., is first slid over the piston head with a recess. Subsequently, the cylinder is also fit onto the piston head, with the strap section that connects the piston to the cylinder head being also bent by 180.degree.. The piston head snaps in a rear position into the cylinder. The two biased spring arms always bias the piston in the direction of the rear end position, so that the applicator can be operated with one hand to take, for instance, blood from a container. Since the applicator can be manufactured in one piece in an injection-molding process with the aid of a simple on-off tool without slide, it is inexpensive and best suited as a disposable applicator.

One piece disposable applicator

The bottle-shaped container is made in a coextrusion blow molding process and has a dimensionally stable outer container and an easily deformable inner bag which consist of different thermoplastic materials that cannot be welded to each other. The preform has a diameter greater than that of the bottle neck so that, when the blow mold is closed, the blow mold halves squeeze off excess material not only on the bottom, but also in the shoulder and neck area. Unwelded seams of the outer container are thereby formed in the shoulder and neck area. In the bottom area the outer container is closed by a weld seam which has been formed by displacing material, the weld seam of the inner bag being fixed in said area. After negative pressure has been applied to the inner bag, holes are formed in the upper area of the outer container for the purpose of a permanent pressure compensation. All openings in the outer container are covered by the pump housing. The container operates reliably in the upside-down position.

Container

A safety stopper for a receptacle includes a top portion and a sealing ring having an inner bead embraced around a rib at the receptacle opening. The stopper is press fitted into the receptacle. A weakened seam is provided between the top portion and the sealing ring. A slide may be provided in the top of the stopper and is moved outward to enable the stopper to be removed after the seam is broken. The stopper may also include a segment which blocks movement of the slide until the sealing ring is removed.

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Saulgrub, Germany

Christoph Heiland