Patent ID: 6216493
Filing Date: 2001-04-17
Classification: A61M,B29C,B29K,B29L,C03B

Abstract:
A method of making an article from a formable material, using a forming apparatus having an inner forming tool and an outer forming tool, the article having a cavity communicating with the exterior via an orifice, wherein a blank having an open end is mounted on the inner forming tool, and the open end is engaged by the outer forming tool while an end region of the blank adjacent the said open end is in a condition to permit it to be formed, a first one of the said tools having a pin extending therefrom, a second one of said tools comprising an other tool, said tools being brought together to form the said end region into a desired shape, in which the inner surface of the said end region conforms to the adjacent surface of the inner forming tool, with the pin defining the said orifice, the other forming tool having a cavity therein, facing the inner forming tool, of larger cross-section than the blank and extending beyond the outside of the blank, whereby during forming any excess material can spread laterally outwardly to an extent permitted by the said cavity.