Patent attributes
The present invention relates to a connecting device for connecting discharge devices to packages (3) with liquid products, preferably foodstuff products, for discharging the products from the packages (3). The connecting device includes two connecting members which can be connected to each other, namely a first connecting member (9) which has a hole (11), the hole being closed by means of a closing member (13), and a second connecting member having a tubular member by means of which the closing member (13) can be penetrated for opening the first connecting member (9). The tubular member can be inserted into the hole (11) and pressed onto edge portions (16) of the hole (11) in the first connecting member (9). The hole (11) has four, five or six corners (15) and edge portions (16) which extend between the corners and the tubular member is designed to fit with the hole (11). The edge portions (16 and 18 respectively) of the hole (11) and the tubular member (14) respectively, are concave and arcuate relative to the centre (C1 and C2 respectively) of the hole (11) and the tubular member (14) respectively, and the concave and arcuate edge portions (16 and 18 respectively) of the hole (11) and the tubular member (14) respectively, connect to each other for defining the corners (15 and 17 respectively) of the hole (11) and the tubular member (14) respectively.