초록 ▼

The present invention relates to a container reducible in size during use, with dispenser spout fitted with check valve. It comprises a bellows bottle, presenting, at one of its ends, a closed bottom and, at the opposite end, a neck destined to receive a dispenser spout fitted with a check valve wit

The present invention relates to a container reducible in size during use, with dispenser spout fitted with check valve. It comprises a bellows bottle, presenting, at one of its ends, a closed bottom and, at the opposite end, a neck destined to receive a dispenser spout fitted with a check valve with mushroom-shaped shutter. The bellows bottle is positioned inside a container with variable volume, constituted by two hollow cylinders able coaxially to slide one inside the other, the neck passing through the outer cylinder.

대표청구항 ▼

[ What is claimed:] [1.] Container reducible in size during use, with dispenser spout fitted with check valve, said container comprising a bellows bottle, presenting, at one of its ends, a closed bottom relatively undeformable and, at the opposite end, a neck destined to receive internally a dispens

[ What is claimed:] [1.] Container reducible in size during use, with dispenser spout fitted with check valve, said container comprising a bellows bottle, presenting, at one of its ends, a closed bottom relatively undeformable and, at the opposite end, a neck destined to receive internally a dispenser spout and provided externally with means for coupling the neck itself with a ring nut able to secure said dispensing spout to said bellows bottle; a check valve being applied in the inner end of the conduit of said dispenser spout, wherein said check valve presents a hollow cylindrical body laterally holed, provided, in its end oriented towards the interior of the bottle, with a stop flange peripherally holed and, in it is opposite end, with a flexible mushroom-shaped shutter, in unidirectional sealing contact with said conduit of the dispenser spout.