초록 ▼

A fused miniature light string set having a plurality of sockets receiving incandescent lamps, a plug at one end of string supplying power to the lamps and a receptacle at the other end for connecting another light string set to permit tandem stringing of sets. At least some of the sockets are adapt

A fused miniature light string set having a plurality of sockets receiving incandescent lamps, a plug at one end of string supplying power to the lamps and a receptacle at the other end for connecting another light string set to permit tandem stringing of sets. At least some of the sockets are adapted to receive shunt-type incandescent lamps having a shunt across the filament for permitting continued current flow if the filament burns out. All of the sockets are electrically connected in a series circuit by relatively fine gauge wire, other conductors being of a larger gauge. One end socket of this series has a terminal connected by one of the larger gauge wires to a plug terminal and by another such wire to a receptacle terminal. The other end socket similarly has one such wire connected to the other plug terminal and another such wire to the other receptacle terminal. The set is fused, there being a fuse associated with each end socket, either an in-line fuse holder or by fuse lamps in the end sockets, which are configured differently from the other sockets. The lamps are mounted in lamp holders of two different configurations, one receivable only by the end sockets and the other receivable only by the remaining sockets.

대표청구항 ▼

A light string set comprising a plurality of lamp sockets for receiving incandescent lamps, said sockets being carried by a flexible wiring string extending between a plug at one end of said conductor string and a receptacle at the other end of said conductor string, said receptacle being adapted fo

A light string set comprising a plurality of lamp sockets for receiving incandescent lamps, said sockets being carried by a flexible wiring string extending between a plug at one end of said conductor string and a receptacle at the other end of said conductor string, said receptacle being adapted for receiving a plug of a further light string set for tandem end-to-end connection of plural light string sets, said sockets including a first end socket physically located at one end of said conductor string proximate the plug end of said conductor string and a second end socket physically located at the other end of said conductor string proximate the receptacle end of said conductor string, and a plurality of sockets spaced at intervals between said first and second end sockets, said conductor string comprising first conductor means constituted by insulated wire segments interconnecting all of said sockets in a series circuit, said wire segments each being of wire guage substantially smaller than 20-gauge, said series circuit extending from a terminal of said first end socket to a terminal of said second socket, second conductor means connecting another terminal of said first end socket to a first terminal of said plug, third conductor means connecting another terminal of said second end socket to a second terminal of said plug, fourth conductor means connecting said another terminal of said first end socket to a first terminal of said receptacle, and fifth conductor means connecting said another terminal of said second end socket to a second terminal of said receptacle, and fuse means associated with each of said first and secod end sockets for providing current overload protection, said second, third, fourth and fifth conductor means comprising insulated wire of wire guage substantially larger than said first conductor means.