Osram Sylvania Inc.

Howard D Taggart

Robert B Dolan

Joseph C Swadel

Donald W Lilljedahl

A lamp has an electrically insulating, light-transmitting, preferably lead-free envelope with a base end and contains a light source. At least two electrical lead-ins are connected to the light source and exit the envelope. A base is affixed to the base end, the base having first and second electrically conductive portions separated by an electrically insulating portion. One of the electrical lead-ins is electrically connected to the first electrically conductive portion and another of the electrically conductive lead-ins is electrically connected to the second electrically conductive portion. The base is non-rotationally mounted to the base end of the lamp by a locking clip affixed to the first electrically conductive portion by mechanical means and affixed to the base by chemical means.

Lamp with formed, cemented clip to secure base to lamp

A locking clip,for fixing a base to an end of a glass bulb. The locking clip,has a body,with a first portion,, a middle portion,and an end portion,. The middle portion,is scyphate, i.e., cup-shaped, and defines a plane,,(FIG.,). The first portion,extends away from plane,in a given direction by an angle &agr;, which, in a preferred embodiment, is about 5 degrees. The end portion,is connected to the middle portion,by a reentrant section,and extends away from the plane,by an angle &bgr; in a direction opposite to the given direction. In a preferred embodiment angle &bgr; is preferably about 20 degrees. In a still more preferred embodiment the included angle between first portion,and end portion,is between 25 and 35 degrees. A centrally located aperture,is provided in the reentrant section,to aid in the subsequent bending of the end portion,at the final welding.

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Gilford, NH, United States of America

Howard D Taggart