Pressure cooker with safety lock - comprising clutch which transmits insufficient torque to unlock lid when cooker is pressurised

摘要

A pressure cooker has a lid fitted with a safety lock which cannot be opened when the cooker is pressurised. The lock comprises a clutch incorporated in the transmission line between the opening/closing handle and the locking mechanism such that when the interior of the vessel is pressurised, the clutch prevents the lid from being removed from the vessel, esp. by slipping if an attempt is made to operate the opening handle.