H - Electricity – 01 – K
Patent
H - Electricity
01
K
313/172.12
H01K 1/18 (2006.01)
Patent
CA 1060081
ABSTRACT OF THE DISCLOSURE An improved miniature size electric lamp is dis- closed wherein an outer wire lead of the lamp is flattened and adhesively bonded to the inside rim of the base shell with an electrically-conducting basing cement. A method of manufacture for said lamp construction is also disclosed wherein the flatten section of the wire lead is aligned to lie in a plane approximately tangent to the envelope wall of the lamp prior to positioning the lamp envelope for assembly to the base shell. A layer of electrically- conducting basing cement is located around the periphery of the base shell to provide improved electrical contact between the side wire lead and the lase shell. An in- sulating cement is applied to the remaining eyelet con- tacting wire lead at the glass to metal junction and extends a sufficient distance along the lead to electrically insulate this wire lead form the electrically conducting cement. The particular lamp construction further can utilize an electrically insulating basing cement to ad- hesively bond the lamp envelope to the base shell having the same resin binder as employed in the electrically- conducting basing cement so that both cements can be heat- cured simultaneously during a single operation in con- ventional automatic lamp manufacturing equipment.
243180
Anderson John R.
Boros Steve
LandOfFree
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