Utility lighter
OwnerPeter Cheninventor
Life of this patent
Estimating the term…
Abstract
A utility lighter includes a locking stopper fitted in a locker groove of a button body of an ignition button in an inwardly movable manner and a resilient element mounted between the locking stopper and the ignition button to normally urge and retain the locking stopper positioning between a pusher head of the ignition button and a locking flange of a piezoelectric unit housing of the utility lighter, so as to block an downwardly movement of the ignition button and prevent the ignition operation of the piezoelectric unit. In order to ignite the utility lighter, an adult user's thumb must intentionally push the locking stopper inwardly until the locking stopper is unblocked by the locking flange and then push down the ignition button at the same time.
Claims26
A utility lighter, comprising:
- a casing having a liquefied gas storage, a piezoelectric unit housing and a pusher cavity defined therein;
- a gas emitting unit extended from and communicated with said liquefied gas storage in said casing;
- an elongated nozzle tube extended from said casing for encircling said gas emitting unit;
- a piezoelectric unit fitted in said piezoelectric unit housing for generating piezoelectricity, wherein said piezoelectric unit comprises a movable operating part upwardly extended from said pusher cavity and an ignition tip extended adjacent to said gas emitting tip;
- an ignition button which is slidably fitted in said pusher cavity of said casing and coupled with a top end of said piezoelectric unit, wherein said ignition button comprises a button body and a pusher head provided on top of said button body and exposing above said piezoelectric unit housing;
- and
- a safety device comprising a locking flange provided at an edge portion of an outer wall of said piezoelectric unit housing, a locking stopper disposed between said button body, and said locking flange in an inwardly movable manner, and a resilient means mounted between said locking stopper and said ignition button for normally urging and retaining said locking stopper positioning between said pusher head and said locking flange of said piezoelectric unit housing so as to block a downward movement of said ignition button and prevent an ignition operation of said piezoelectric unit.
Dependencies are inferred from the claim text.