Abstract: A lighter comprising a fuel tank, a tank cover on the fuel tank, a fuel valve mounted on the cover, the fuel valve being operable to release fuel from the fuel tank, a flame adjustment ring which is adjustable for controlling the height of a flame above the fuel valve, a windshield for protecting the flame, an actuating knob of resilient material, a lever which is pivotable in response to actuation of the actuating knob from its locked position for opening the valve, a piezoelectric unit operable by the actuation of the actuating knob for igniting the fuel, and a spring resiliently urging the actuating knob into a locked condition for releasibly retaining the actuating knob in a locked position and thereby preventing the opening of the valve and the actuation of the piezoelectric unit, the actuating knob being resiliently flexible against the action of the spring for releasing the actuating knob from its locked condition.

Abstract: A child-resistant, automatically locking lighter includes a fuel tank having a fuel tank cover, a valve for controllably releasing fuel from the tank, a spark wheel, a flint for generating a spark to ignite released fuel, and lever for opening and closing the valve. A retainer unit mounted on the tank cover includes an abutment and a retainer hook. The lever includes a latch hook extending toward the hook of the retainer unit, and an abutment engageable with the abutment of the lever. A spring mounted between the tank cover and the lever urges the lever into a locked position in which the abutments prevent the lever from pivoting to open the valve. The lever is capable of being manually slid to a released position, in which the abutments are disengaged and the lever is free to pivot to open the valve. As the lever is displaced from the locked to the released positions, the retainer hook and the latch hook engage, to retain the lever in the released position against the force of the spring.

Abstract: A child-resistant lockable lighter has an actuating lever which can be slid to and fro between a locked position and a released position. In its released position, the lever is pivotable for opening a gas valve. In its locked position, the lever is prevented from pivoting and, also is wedged against the side wheels of the spark wheel so as to prevent rotation of the spark wheel. The pulling force required to displace the locking lever from its locked position to its released position is greater than that which can be exerted by a child.