Patent ID: 6077123
Filing Date: 2000-06-20
Classification: H01J,H01K

Abstract:
A lamp base contact plate for connecting a current lead-in wire of an electric lamp to a contact part of a lampholder, said contact plate being a pressed metal part of the lamp base and having a through bore for the lamp lead-in wire, is fixed firmly to an electrically insulating insert closing the end of a shell of the lamp base wherein the through bore for the lamp lead-in wire is formed as a first perforated bore (12) with a torn skirt (20) protruding from a plane (L) of said contact plate (10) in a direction away from the insulator insert (30), and said contact plate (10), in addition to said first perforated bore (12), also includes at least two further perforated bores (14, 16, 18), each having a torn skirt (22, 24, 26) protruding from the plane (L) of said contact plate (10) in a direction opposite to the direction of the torn skirt (20) of said first perforated bore (12), towards the insulator insert (30).