Patent ID: 7479006

Claim:
A gas supply system for a cooking appliance including at least one gas surface burner element in selective flow communication with a manifold, the manifold in flow communication with a gas supply line, said gas supply system comprising: a surface burner element control valve operatively coupled to each surface burner element, said surface burner element control valve movable between an open position and a closed position to control gas flow from the manifold to the surface burner element; a lockout valve operatively coupled to the manifold along the gas supply line and configured to control gas flow to the manifold, said lockout valve movable between a closed position restricting gas flow to the manifold and an open position allowing gas flow to the manifold; a switch assembly comprising a first switch positioned with respect to said surface burner element control valve, a position of said surface burner element control valve detectable by said first switch; and a controller operatively coupled to said lockout valve and in signal communication with said switch assembly, said controller configured to activate said lockout valve to move from the closed position to the open position based on a signal received from said first switch indicating that said surface burner element control valve is in the closed position.