Patent ID: 7033166

Claim:
A valve with a safety mechanism for diverting reverse gas flow being mountable in a gas lighter, comprising: a hollow seat including a bottom hole for permitting gas to flow into; a sleeve having outer threads put on a forward portion of the seat, the sleeve having a forward opening; an elongated mouth extended from a position near the bottom hole of the seat through a bore of the sleeve and the forward opening of the sleeve, the mouth including an enlargement formed on a forward end outside the forward opening of the sleeve, a peripheral projection having a predetermined length formed inside the sleeve, a spring put thereon to be in contact with the projection so that both ends of the spring are urged against the projection and an inner wall adjacent the forward opening of the sleeve respectively, and a side aperture formed thereon adjacent the seat; a leakproof nut disposed at a bottom of the mouth proximate the bottom hole of the seat; a hose coupled to and in fluid communication with the enlargement and the sleeve; and an actuation member pivotably disposed between the enlargement and the sleeve with the mouth passed, wherein a shoulder is formed around the mouth proximate the forward opening of the sleeve, the shoulder being spaced apart from the forward opening of the sleeve by a predetermined gap when the actuation member is not pressed.