Patent ID: 7571675

Claim:
A cooking vessel comprising a pan and a removable lid assembly comprising a lid having a generally convex upper surface and a generally concave lower surface and a peripheral rim, said lid assembly further comprising a knob assembly on said upper surface and defining at least one aperture through said knob assembly and said lid, said lid assembly further comprising a thermometer including a probe extending downward through said aperture and a temperature display, wherein said probe has a bottom end disposed above the rim, said probe containing a temperature sensing device disposed beneath said aperture and within said cooking vessel, wherein said knob assembly includes a whistle body that provides an audible signal in response to flow of vapor therethrough, and a movable member having a dual function notch formed therein that operates selectively both as a release to selectively permit removal of the movable member for cleaning, and as a slot for vapor discharge to selectively enable the whistle body.