| 摘要 |
<p>An add-on automatic safety gas device for shutting off a gas valve (3) at the detection of a gas leak comprising; a first knob (5), mounted over an existing gas valve knob (7), and affixed to it; a spindle coupled to said first knob (5), a second knob (10) mounted substantially perpendicular to said spindle (8), a spring (13) attached to said second knob (100), a bracket (14) capable of being forced into a groove on a second knob a solenoid (16), which when in its energized state retracts away from said groove, and a gas leak detector capable of producing an electrical signal and send it via electrical connecting means to actuate said solenoid (16) to its energized state.</p> |
