Patent ID: 7626321

Claim:
A lamp for use in a light string, said lamp comprising: a bulb; a filament in said bulb; a holder carrying said bulb, said holder having two spaced-apart holes formed therein said holder having a bottom; a first and a second Dumet wires extending from said filament inside said bulb through said two spaced-apart holes in said holder to the exterior of said holder; a socket carrying said holder, said holder removably seatable in said socket, said socket having an interior wall; a first and an opposing second electrical terminal carried by said interior wall of said socket, said first and said second Dumet wires engaging said first and said second terminals, respectively, when said holder is seated in said socket; a spring shunt having a first and a second end and formed of two end portions with a central portion therebetween, with said central portion having a larger cross section than said two end portions, said second end of said spring shunt being carried by said second electrical terminal so that said spring shunt is cantilevered across said interior of said socket toward said first electrical terminal, said bottom of said holder pressing down on said central portion of said spring shunt so that said first end of said spring shunt is thereby moved out of electrical contact with said first electrical terminal when said holder is in said socket and said spring shunt returning resiliently to electrical contact with said first terminal so that said spring shunt passes electrical current between said first and said second terminals when said bottom of said holder is no longer pressing down on said spring shunt.