Patent ID: 7270778

Claim:
A method for fixedly securing a plastic encapsulated transducer to a metal interface cup for attachment with a machine comprising: configuring the metal interface cup substantially as a cylinder defined by a cylinder wall and a bottom wall closing a bottom of said cylinder, said cylinder including a first bore corresponding to an inner diameter defined by said cylinder wall, said first bore corresponding to an outside diameter of the plastic encapsulated transducer; configuring a second bore extending through opposing sides defining an exterior of said cylinder wall and substantially transverse to said first bore; configuring an undercut in said first bore intersecting said second bore, said undercut defining a circumferential groove in said cylinder wall; injecting plastic into a cylindrical overmold surrounding the metal interface cup having the plastic encapsulated transducer disposed in said first bore, wherein injection of plastic flows in an axial length defining said overmold toward the metal interface cup and circumferentially into said undercut via said second bore, thus forming a solid interference therebetween upon solidification restricting axial movement therebetween.