# US 12,215,898 B2 · Cooling pressure cooker

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- Number: US 12,215,898 B2
- Document ID: US12215898B2
- Status: Granted
- Kind: B2
- Application number: 16/743,560
- Filed: 2020-01-15
- Published: 2020-07-16
- Granted: 2025-02-04
- Earliest claimed: 2019-01-15
- Assignees: The Steelstone Group LLC
- Applicants: The Steelstone Group LLC
- Inventors: Binyumen Itzkowitz
- Web page: https://patentgrep.com/patent/US12215898B2

## CPC

- F25B 21/02: using Peltier effect; using Nernst-Ettinghausen effect
- A47J 27/002: {Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels}
- A47J 27/08: Pressure-cookers; Lids or locking devices specially adapted therefor
- F25D 17/06: by forced circulation
- F25B 2321/0251: by a gas
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)

## Abstract

An embodiment of the present disclosure provides a pressure cooker including: a housing; a pressure pot; and a cooling system. The pressure pot is disposed in the housing. The cooling system is thermally coupled to the pressure pot to cool the pressure pot.

## Claims

### Claim 1

A pressure cooker comprising:
a housing wherein the housing includes an air inlet and an air outlet;
a pressure pot disposed in the housing;
a thermoelectric cooler thermally coupled to the pressure pot to cool the pressure pot;
an air passage located between the housing and the pressure pot, wherein the air passage is in fluid communication with each of the air inlet and the air outlet; and
a fan configured to blow air from the air inlet to the air outlet through the air passage, wherein the air passage is located between the housing and the pressure pot, wherein heat of the pressure pot is transferred via the thermoelectric cooler to the air in the air passage,
wherein the housing includes a bottom, and a sidewall extending upwardly from the bottom of the housing,
wherein the pressure pot includes a bottom, and a sidewall extending upwardly from the bottom of the pressure pot,
wherein at least a part of the thermoelectric cooler is disposed between the sidewall of the housing and the sidewall of the pressure pot, and
wherein the fan is configured to discharge the air through an outlet oriented in a direction parallel to the bottom of the pressure pot such that the air flow changes direction to flow upwardly between the sidewall of the housing and the sidewall of the pressure pot, through the thermoelectric cooler.

### Claim 2 (depends on 1)

The pressure cooker of claim 1, wherein the thermoelectric cooler includes:
a first heatsink configured to draw heat from the pressure pot;
a second heatsink configured to dissipate the heat into the air passage; and
a heat transfer module including a cold side and a hot side;
wherein the cold side of the heat transfer module is thermally coupled to the first heatsink and the hot side of the heat transfer module is thermally coupled to the second heatsink, and the heat transfer module transfers the heat from the first heatsink to the second heatsink.

### Claim 3 (depends on 2)

The pressure cooker of claim 2, wherein the heat transfer module comprises a Peltier module.

### Claim 4 (depends on 1)

The pressure cooker of claim 1, wherein the fan is disposed under the bottom of the pressure pot.

### Claim 5 (depends on 1)

The pressure cooker of claim 1, wherein the air outlet includes a plurality of holes arranged in a circumferential direction of the housing.

### Claim 6 (depends on 2)

The pressure cooker of claim 2, wherein the first heatsink includes a part disposed between the sidewall of the pressure pot and the second heatsink, and the second heatsink includes a part disposed between the first heatsink and the sidewall of the housing.

### Claim 7 (depends on 1)

The pressure cooker of claim 1, wherein the thermoelectric cooler extends along both the sidewall of the housing and the sidewall of the pressure pot.

### Claim 8 (depends on 1)

The pressure cooker of claim 1, wherein an uppermost end of the thermoelectric cooler is located lower than a lowermost end of the air outlet and is located higher than the bottom of the pressure pot.

### Claim 9 (depends on 1)

The pressure cooker of claim 1, wherein at the position that is upper than the bottom of the pressure pot and that is between the sidewall of the housing and the sidewall of the pressure pot, the air has nowhere to escape except through the thermoelectric cooler.

### Claim 10 (depends on 1)

The pressure cooker of claim 1, wherein the thermoelectric cooker extends across the bottom of the pressure pot in a side view of the pressure cooker.