Patent ID: 6158606
Filing Date: 2000-12-12
Classification: A47J,Y10S,Y10T

Abstract:
Cooking pressure setting valve for a pressure cooker having a cooking vessel and a lid, comprisinga rotary valve setting knob housed on a radial handle superimposed on the cooker lid, to graduate the pressure inside the vessel,an outer valve casing on top of the cooker lid covered by the setting knob, and a cylindrical central valve body housed in the outer casing and connected rotationally to the setting knob,a pressure take-off, which traverses a hole in the cooker lid communicating the vessel with the valve,means for the tight sealing of the valve body with the setting knob,a valve seat and a valve sealing member with a central hole, which lifts off the valve seat for steam release,a pressure regulating spring, pretensioned by means of turning the setting knob, which keeps the sealing member closed until a set pressure is exceeded,means for the pressure indication, housed in the central body, comprising a diaphragm connected to the vessel pressure take-off by way of the sealing member, an axial stem pushed by the diaphragm, an axial stem return spring, and a pivoting spherical shell jointed to the axial stem and visible from the outside of the setting knob.