Switch for gas burner

Claim 1

A switch for a gas burner, said switch comprising: a body including a puncture formed therein, a shaft rotatably engaged in said puncture of said body, said shaft including a slit formed therein, a rod engaged in said slit of said shaft so as to be rotated by said shaft, a cylindrical member secured in said housing and including a first end having two depressions formed therein for engaging with said rod and having a second end, a ring secured to said second end of said cylindrical member and including a bar formed therein, means for biasing said rod to engage with said cylindrical member, a housing including a first end secured to said body and including a second end, said housing including at least one orifice and an aperture formed therein, a disc secured to said second end of said housing, said disc including a slot having a first end of smaller size and having a second end of larger size, said disc including a side portion having a recess formed therein and facing away from said housing, said first end of said slot being communicating with said recess, a nozzle secured to said housing and including a hole for communicating with said recess and said slot, a barrel rotatably engaged in said housing for defining a gap between said barrel and said housing, said barrel including a first end having a pair of legs and a channel formed therein for engaging through said ring and said cylindrical member, said rod being engaged in said channel so as to allow said barrel to be rotated by said shaft, said barrel including a bore formed therein, said barrel including an outer peripheral portion having an annular groove formed therein for aligning with said aperture and including an approach communicating said annular groove with said bore, said barrel including a conduit for communicating said slot to said gap, said barrel including a pathway for communicating said orifice to said bore of said barrel, a stem slidably engaged in said bore of said barrel, said stem including a first end for engaging with said bar of said ring and including a second end having a plug for enclosing said bore, means for biasing said plug to enclose said bore, two sealing rings engaged on said barrel and arranged beside said annular groove, and means for biasing said ring to engage with said cylindrical member, said bore of said barrel being enclosed by said plug when said rod is engaged in said depressions of said cylindrical member, and said rod being disengaged from said depressions so as to move said cylindrical member and said ring and said stem and so as to disengage said plug from said bore when said rod is rotated by said shaft, and gas from said orifice being allowed to flow into said aperture and to flow into said hole of said nozzle when said plug is disengaged from said bore and when said conduit is aligned with said slot.