Patent ID: 8662071
Filing Date: 2014-03-04
Classification: F24C

Abstract:
1. A household gas appliance, comprising: a gas supply valve that is configured to be coupled to a gas supply line; and a magnetic key, wherein when the magnetic key is located in a first position, the gas supply valve opens so that gas can flow through the valve, and wherein when the magnetic key is removed from the first position, the gas supply valve closes to prevent gas from flowing though the valve, wherein the first position is not normally visible to a user of the appliance such that a user cannot normally see the magnetic key when it is located at the first position, the first position being located inside an enclosure on the appliance; and a magnetic sensor that detects when the magnetic key is located in the first position, wherein when the magnetic sensor detects that the magnetic key is located in the first position, the magnetic sensor outputs an opening signal that causes the gas supply valve to open, and wherein when the magnetic sensor detects that the magnetic key is not located in the first position, the magnetic sensor outputs a closing signal that causes the gas supply valve to close.