Container having splines and method for using same

A method for introducing the contents of one container into another container, comprising:

• a) providing a receiving container having a receiving body wall, the receiving body wall defining a receiving chamber therein, the receiving container having a receiving head, the receiving head comprising a receiving neck and a receiving shoulder which communicates between the receiving neck and the receiving body wall, the receiving neck having a receiving orifice therein and a receiving bore therethrough, the receiving orifice being in communication with the receiving chamber through the receiving bore, the receiving neck further having a receiving inner surface contiguous to the receiving orifice and/or the receiving bore, the receiving inner surface having a plurality of splines extending therefrom and generally directional to the longitudinal extension of the receiving neck, the splines being made of a plastic;
• b) providing a dispensing container, the dispensing container defining a dispensing chamber, the dispensing chamber having contents therein, the dispensing container having a dispensing neck having a dispensing orifice therein and a dispensing bore therethrough, the dispensing orifice being in communication with the dispensing chamber through the dispensing bore, the dispensing neck having a dispensing outer surface defining threads adapted to be received by the splines of the receiving container, the threads being of a material harder than the plastic of the splines;
• c) inserting the dispensing neck of the dispensing container into the receiving orifice of the receiving container and emptying the contents into the receiving container.