Patent ID: 6142766
Filing Date: 2000-11-07
Classification: F23Q

Abstract:
A safety lighter, comprising:a casing having a lower portion containing a pusher cavity and a liquefied gas storage case, and an upper portion having a gas emitting nozzle provided therein to communicate with said liquefied gas storage case for controlling a flow of gas;a piezoelectric unit fitted in said pusher cavity of said casing for generating piezoelectricity, wherein said piezoelectric unit comprises a movable operating part upwardly extended from said pusher cavity and an ignition tip extended towards said gas emitting nozzle;a pusher cap slidably fitted to said pusher cavity of said casing in a vertically movable manner, said pusher cap being attached to a top end of said piezoelectric unit and comprising a cap body exposed above said pusher cavity and a cap leg extending downwardly from said cap body into said pusher cavity; anda safety device which comprises:a locking member, which is pivotally connected to said upper portion of said casing, having a stopper latch at a bottom end thereof for normally engaging with said cap body so as to block and stop any possible downward movement of said pusher cap; anda resilient element provided between said locking member and said upper portion of said casing for urging said locking member towards said cap body for retaining said engagement of said stopper latch with said cap body for normally blocking any downwardly movement of said pusher cap, so as to lock up said pusher cap to prevent any ignition operation of said piezoelectric unit;wherein said upper portion of said casing is further pivotally mounted with an L-shaped cover articulated on a pin axis and biased by a resilient member adapted for elastically maintaining said cover selectively in an upright closed position to normally cover a windshield mounted on said upper portion of said casing or in an inclined open position to open said windshield;thereby said piezoelectric lighter is locked from ignition normally unless a pushing force is applied to push said locking member inwardly until said stopper latch disengages with said cap body, so that said pusher cap is capable of being pressed down to ignite said piezoelectric lighter, wherein after every ignition, said resilient element automatically rebounds said locking member outwardly to lock up said pusher cap once said pushing force applied against said locking member is released.