Patent ID: 7361013
Filing Date: 2008-04-22
Classification: F23Q

Abstract:
1. A numeral lighter, comprising: an inner lighter housing having a liquefied gas storage and comprising a top supporting frame; a gas nozzle received in said inner lighter housing at said top supporting frame and communicating with said liquefied gas storage for controlling a flow of gas therefrom; a piezoelectric unit, which is disposed in said inner lighter housing for generating piezoelectricity, comprising a movable operating part extended upwardly and an ignition tip extended to a position closed to said gas nozzle in such a manner that when said movable operating part is depressed downwardly, sparks are generated from said ignition tip to ignite said gas emitted from said gas nozzle; an ignition unit slidably mounted to said top supporting frame of said inner lighter housing to depress said movable operating part of said piezoelectric unit and to release said gas from said liquefied gas storage at the same time; and a numeral outer casing having a receiving cavity and a top opening communicating with said receiving cavity, wherein said inner lighter housing is detachably received in said receiving cavity of said numeral outer casing at a position that said liquefied gas storage is protectively enclosed within said numeral outer casing while said top supporting frame is positioned at said top opening of said numeral outer casing such that said numeral outer casing forms as an interchangeable shell to accommodate said inner lighter housing therein so as to enhance an aesthetic appearance of said lighter, wherein said ignition unit comprises an ignition button pivotally mounted on said inner lighter casing at said top supporting frame thereof and a depressing arm supported in said inner lighter casing to rest on top of said movable operating part of said piezoelectric unit and arranged in such a manner that when said ignition button is upwardly and pivotally folded to rest on top of said depressing arm, said ignition button is depressed downwardly to depress said depressing arm for ignition, wherein said inner lighter housing further has two guiding slots formed at two sidewalls respectively, wherein said ignition button is pivotally connected between said two sidewalls of said inner lighter housing at said guiding slots and is arranged when said ignition button upwardly and pivotally fold between said two sidewalls of said inner lighter housing, a bottom side of said ignition button is sat on a top side of said depressing arm such that said ignition button is depressed downwardly along said guiding slots to drive said depressing arm downwardly for ignition, and wherein said ignition button has a flat biasing surface provided on said bottom side thereof and a stepping edge extended from said flat biasing surface, wherein said depressing arm has a flat depressing surface provided on said top side thereof and a corresponding stepping rim extended from said flat depressing surface such that said ignition button is upwardly and pivotally folded until said stepping edge of said ignition button slidably passes said stepping rim of said depressing arm to engage said flat biasing surface of said ignition button with said flat depressing surface of said depressing arm so as to allow said ignition button to be depressed downwardly to drive said depressing arm downwardly for ignition.