Throw-away flashlight

Claim 2

In a flashlight comprising an elongated outer case holding a dry cell battery and a light bulb at one end of the case, said bulb having two connections, said case comprising a metal tube, a ferrule having an opening therein and a flange about one end thereof, said opening being of a size to permit a portion only of said bulb to project therethrough, and closure means having a peripheral flange, said ferrule being at one end of said tube and said closure means being at the other end of the tube, said flanges being positioned in juxtaposition to said tube with the tube being permanently crimped over the flanges to prevent them from separating from the tube; and including first means at said one end of the tube to provide an electrical conduit between said one end of the tube and one of the connections on the bulb; and second means at said other end of the tube to provide an electrical conduit between said other end of the tube and the battery; one of said means being openable to selectively make and break the respective conduit.

Claim 3

In a flashlight as set forth in claim 1, wherein said ferrule is formed of metal and forms said first means, said closure means being a second metal ferrule having an opening therethrough, said second means including said second ferrule, said case including an annular shell of insulating material within said tube, said flanges seating against the ends of said shell.

Claim 4

In a flashlight comprising a metal tubular case containing a dry cell battery insulated from said case and having end terminals, a light bulb permanently mounted at one end of said case with one terminal in contact with a terminal of the battery and the other bulb terminal connected with the metal case, and switching means including a metal plunger mounted at the other end of the case and electrically connected therewith; the improvement which comprises resilient non-conductive means for normally holding the plunger out of contact with the terminal of the battery and permitting such contact when the plunger is pushed inwardly to close the bulb circuit.

Claim 5

In a flashlight comprising a metal tubular case containing a dry cell battery insulated from said case and having end terminals, a light bulb permanently mounted at one end of said case with one terminal in contact with a terminal of the battery and the other bulb terminal connected with the metal case, and switching means including a metal plunger mounted at the other end of the case and electrically connected therewith; the improvement which comprises resilient non-conductive means for normally holding the plunger out of contact with the terminal of the battery and permitting such contact when the plunger is pushed inwardly to close the bulb circuit.

Claim 6

Structure in accordance with claim 3 wherein the resilient non-conductive means comprises a coil spring of plastic composition arranged in compression between the battery and the plunger.

Claim 7

A flashlight comprising a metal tubular case, a non-conductive tube interiorly adjacent to said case, a dry battery having end terminals within said tube, a light bulb arranged at one end of said case, said bulb having a base terminal and a center terminal, a metal ferrule surroundingly engaging the base of said bulb and having an opening therein through which said bulb projects, said ferrule having a peripheral flange at its base clamped between the end of said non-conductive tube and the crimped over end of said case, a second metal ferrule having a cEntral opening therein and a peripheral flange clamped between the other end of said non-conductive tube and the crimped over other end of said case, a metal plunger extending through the opening in said second ferrule and having an abutment on the portion thereof within said ferrule, and a plastic coil spring arranged in compression between said abutment and said battery, said spring holding said battery in contact with said bulb and normally holding said plunger out of contact with said battery but permitting such contact when said plunger is pushed in to engage the battery and thus close the bulb circuit.

Claim 8

A flashlight comprising a metal tubular case, a non-conductive tube interiorly adjacent to said case, a dry battery having end terminals within said tube, a light bulb arranged at one end of said case, said bulb having a base terminal and a center terminal, a metal ferrule surroundingly engaging the base of said bulb and having an opening therein through which said bulb projects, said ferrule having a peripheral flange at its base clamped between the end of said non-conductive tube and the crimped over end of said case, a second metal ferrule having a cEntral opening therein and a peripheral flange clamped between the other end of said non-conductive tube and the crimped over other end of said case, a metal plunger extending through the opening in said second ferrule and having an abutment on the portion thereof within said ferrule, and a plastic coil spring arranged in compression between said abutment and said battery, said spring holding said battery in contact with said bulb and normally holding said plunger out of contact with said battery but permitting such contact when said plunger is pushed in to engage the battery and thus close the bulb circuit.