Igniter with safety lock
OwnerChi Lam Wonginventor
Life of this patent
Estimating the term…
Abstract
An igniter (or lighter) having a safety lock includes a housing; a gas supply in the housing and having an outlet valve; a combustion nozzle fluid connected to the outlet valve; a conventional igniter for igniting gas at the outlet nozzle; a finger-operable slider for opening the outlet valve and activating the igniter to ignite the gas when the slider is moved from its rest position; a finger-operable thumbwheel having a lock position for blocking movement of the slider from the rest position, and a spring biasing the thumbwheel to the lock position, wherein movement of the thumbwheel from the lock position is by finger operation in a direction opposite to finger operation of the first movable member from the rest position.
Claims20
An igniter, comprising:
- a housing;
- a gas supply in said housing and having an outlet valve;
- a combustion nozzle supported relative to said housing and fluid connected to said outlet valve;
- an igniting means supported relative to said housing for igniting gas at said combustion nozzle;
- and
- a sliding switch assembly, which comprises:
- a sliding button slidably mounted on said housing for opening said outlet valve and activating said igniting means to complete ignition at said combustion nozzle when said sliding button is moved from a rest position thereof;
- a thumbwheel pivotally mounted on said sliding button to rotatably move between a lock position and an unlock position, wherein at said lock position, said sliding button is locked by said thumbwheel to block a sliding movement of said sliding button for completing said ignition, and at said unlock position, said thumbwheel is pivotally rotated in a direction opposite to said sliding movement of said sliding button to permit said sliding movement of said sliding button so as to allow said sliding button to complete said ignition;
- and
- means for biasing said thumbwheel to said lock position thereof.
Dependencies are inferred from the claim text.