Patent ID: 6874422

Claim:
A hermetically sealed electrical feed-through device comprising an electrically conductive body ( 11 , 21 ) with a through-going circular opening (O,O′), said electrically conductive body having a front side and a rear side; an electrically conductive isolated pin ( 13 , 23 ) hermetically sealed centrally in said through-going circular opening (O,O′) by means of a glass seal ( 17 , 27 ), so that said isolated pin ( 13 , 23 ) extends outward from said rear side of said electrically conductive body and so that one end of the isolated pin is accessible from or exposed on said front side of said electrically conductive body; and an electrically conductive ground pin ( 15 , 25 ) connected with the rear side of the electrically conductive body ( 11 , 21 ) adjacent to said through-going circular opening, said electrically conductive ground pin ( 15 , 25 ) extending outward from the rear side of the electrically conductive body ( 11 , 21 ) approximately parallel to the isolated pin; wherein said isolated pin ( 13 , 23 ) comprises an oval or elliptical section ( 13 a , 23 a ) extending through said glass seal ( 17 , 27 ) from said rear side of said electrically conductive body to said one end of said isolated pin, said oval or elliptical section ( 13 a , 23 a ) having an oval or elliptical transverse cross-section, whereby different bridge wires of different lengths are connectable between the front side of the said electrically conductive body ( 11 , 21 ) and the one end of the isolated pin accessible from or exposed on the front side of the electrically conductive body.