| 摘要 |
A lid-latching and pressure-relieving device for a steam pressure cooker, the device enabling a lid (1) to be latched on to a saucepan of the cooker and having a valve (2) to relieve pressure in the cooker. The pressure-relief and lid-latching functions of the device are so coupled that the valve (2) is operatively connected to an actuating member (4) and the valve being responsive to pressure in the cooker when the lid is latched on the saucepan and being movable by the actuating member from a first position, in which the lid is latched on the saucepan and pressure exists in the cooker to enable cooking under pressure to take place, to a second position in which pressure in the cooker can be relieved through the valve without unlatching the lid, and to a third position in which the lid can be unlatched by the actuating member, the third position only being attainable upon discharge of the pressure in the cooker.
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