US 5,092,229 AGranted

Entirely uniformly heated responsive cooker

OwnerKun M. Cheninventor

Life of this patent

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Abstract

An entirely uniformly heated responsive cooker comprising an inner pot and an outer pot, wherein the inner pot neither directly touches the heating source nor the wall portion of the outer pot by means of exhalation valve means capable of adjusting proper pressure and thermal energy existing in the outer pot according to the cooking requirements of different foods, resulting in the food in the inner pot being entirely and evenly heated by thermal energy so that the cooking time is reduced, safety is ensured, and the original flavor of food is preserved to effectively achieve the object of energy-saving and economy.

Claims17

Dependent claims

An entirely uniformly heated responsive cooker, comprising:

an outer pot containing water in the inner bottom portion thereof;
a heating element disposed under the bottom of said outer pot;
a ring member having a first airtight ring packing means at its inner circumference which is airtightly disposed on and supported by the top of said outer pot;
an inner pot formed with a multi-stepped annular flange on the top portion thereof, the periphery of said inner pot being airtightly removably disposed in the inner circumference of said ring member, making the bottom and outer wall of said inner pot spaced from said outer pot, forming a first space between bottoms and walls of said inner and outer pots;
a pot cap assembly airtightly fitted on said multi-stepped annular flanges of said inner pot by means of a second airtight ring packing means, forming a second space between said pot cap assembly and food contained in said inner pot, said second space being completely and independently isolated form said first space so as to prevent the water in the inner bottom portion of said outer pot from contaminating the food in said inner pot;
a first exhalation valve means having an adjustable predetermined exhalation pressure level and disposed in said first space to regulate thermal energy and pressure in said first space;
and
a second exhalation valve means including a vent hole and a two-way venting valve which are disposed in said second space to regulate thermal energy and pressure in said second space;
whereby when the thermal energy and pressure in said first space increase gradually and reach said predetermined exhalation pressure level for said first exhalation valve means, a further temporary pressure relieving and regulating movement is performed such that the temporary pressure regulating movement is repeatedly performed and after each cycle of pressure relieving and regulating movement, the food temperature in said inner pot is responsively increased until the thermal energy conduction barrier between said first space and inner pot disappears, permitting the thermal energy produced in said first space to be directly conducted to said inner pot and making the food in said inner pot surrounded by thermal energy in said first space, and heated and boiled entirely uniformly under the condition of constant temperature and pressure so as to maintain the original taste and nutrition of food and fully effectively utilize thermal energy to save cooking time and energy.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

An entirely uniformly heated responsive cooker, comprising:

an outer pot containing water in the inner bottom portion thereof;
a heating element disposed under the bottom of said outer pot;
a ring member having a first airtight ring packing means at its inner circumference which is airtightly disposed on and supported by the top of said outer pot;
an inner pot formed with a multi-stepped annular flange on the top portion thereof, the periphery of said inner pot being airtightly removably disposed in the inner circumference of said ring member, making the bottom and outer wall of said inner pot spaced from said outer pot, forming a first space between bottoms and walls of said inner and outer pots;
a pot cap assembly airtightly fitted on said multi-stepped annular flanges of said inner pot by means of a second airtight ring packing means, forming a second space between said pot cap assembly and food contained in said inner pot, said second space being completely and independently isolated form said first space so as to prevent the water in the inner bottom portion of said outer pot from contaminating the food in said inner pot;
a first exhalation valve means having an adjustable predetermined exhalation pressure level and disposed in said first space to regulate thermal energy and pressure in said first space;
and
a second exhalation valve means including a vent hole and a two-way venting valve which are disposed in said second space to regulate thermal energy and pressure in said second space;
whereby when the thermal energy and pressure in said first space increase gradually and reach said predetermined exhalation pressure level for said first exhalation valve means, a further temporary pressure relieving and regulating movement is performed such that the temporary pressure regulating movement is repeatedly performed and after each cycle of pressure relieving and regulating movement, the food temperature in said inner pot is responsively increased until the thermal energy conduction barrier between said first space and inner pot disappears, permitting the thermal energy produced in said first space to be directly conducted to said inner pot and making the food in said inner pot surrounded by thermal energy in said first space, and heated and boiled entirely uniformly under the condition of constant temperature and pressure so as to maintain the original taste and nutrition of food and fully effectively utilize thermal energy to save cooking time and energy.

6 more elements