Patent ID: 8303295
Filing Date: 2012-11-06
Classification: B21D,B29C,Y10S

Abstract:
1. An interface element comprising: a fixed part adapted to be fixedly mounted to a pliers or machine for actuating an expansion tool; and a tapered needle operatively engaged with the fixed part for cyclic axial movement relative to the fixed part in response to operation of the pliers or machine for actuating an expansion tool, wherein the tapered needle is constructed and arranged to connect to a plurality of chucks of an expansion tool for producing a socket at an end of a polymeric or composite material pipe such that: (i) a portion of each complete cycle of said cyclic axial movement of the tapered needle causes the plurality of chucks to move radially outwardly, (ii) a portion of each complete cycle of said cyclic movement permits the plurality of chucks to move radially inwardly, (iii) and each complete cycle of said cyclic movement results in the plurality of chucks rotating for a portion of a turn relative to the fixed part; and wherein the interface element further comprises a rotatable member operatively engaged with the fixed part for rotation relative to the fixed part, wherein the rotatable member is constructed and arranged to operatively engage a plurality of chucks of an expansion tool for producing a socket at an end of a polymeric or composite material pipe such that the plurality of chucks rotate with the rotatable member relative to the fixed part, and the rotatable member operatively engages the tapered needle such that: