Patent ID: 6101791
Filing Date: 2000-08-15
Classification: B29C

Abstract:
A method of molding a plurality of medical vials with a mold, said mold comprising a first member having a first end and a second end, including an opening defined within said first end; a manifold member operatively attached to said second end of said first member for channeling a plastic fluid to an insert means, said insert means being positioned within the opening located within said first member, said insert means containing a first slide and a second slide, with said first slide and second slide having an extended position and a contracted position and a first spring and a second spring which bias said first slide and said second slide in the extended position and a second member having a first end and a second end, and wherein said first end of said second member has attached thereto a plurality of core pins contained therein; an ejector plate attached to said second member, said plurality of core pins being disposed therethrough; and, a piston adapted to said second end of said second member for reciprocating said second member into engagement with said insert means, the method comprising:heating a plastic so that the plastic if fluidized;channeling the plastic fluid into the manifold;injecting the plastic fluid into the manifold;maintaining the plastic fluid within said manifold at a constant temperature;moving said piston so that said first end of said second member contacts said first slide and said second slide;injecting the plastic fluid through said first member;contracting said first slide and said second slide so that said first end of said second member abuts the first end of said first member;forming a plurality of cavity profiles within said contracted first slide and said second slide and wherein said plurality of cavity profiles are in communication forming a plurality of arm contours;placing said plurality of core pins into said plurality of cavity profiles so that said plurality of core pins are free standing within said plurality cavity profiles;injecting the plastic fluid into said plurality of cavity profiles and into said plurality of arm contours;injecting the plastic fluid about said plurality of core pins so that the plurality of medical vials are formed interconnected together via a plurality of arms;channeling a water stream through said mold:reciprocating the piston away from the first end of said first member;allowing the first slide and second slide to expand;reciprocating the piston so that the ejector plate traverses the plurality of core pins;electing the plurality of medical vials from the plurality of core pins, and wherein the plurality of medical vials comprises a first end that is closed and a second end that is opened.