System and method for delivering a cooling agent to a gas-fueled cooking appliance to aid in fire suppression

Patent metadata

Field	Value
Publication number	US-11497950-B2
Application number	US-201816754346-A
Country	US
Kind code	B2
Filing date	Oct 11, 2018
Priority date	Oct 13, 2017
Publication date	Nov 15, 2022
Grant date	Nov 15, 2022

Abstract

A system for delivering a cooling agent to cooking appliance to aid in fire suppression is disclosed, which includes a fuel delivery path extending from a source of cooking fuel to a heating element of the cooking appliance, a source of cooling agent selectively in fluid communication with the fuel delivery path, and a valve assembly associated with the fuel delivery path and the source of cooling agent, wherein the valve assembly is configured to control the delivery of cooling agent to the heating element of the cooking appliance and shut off the heating element from the source of cooking fuel in the event of a fire.

First claim

What is claimed is:

1. A system for cooling a cooking appliance to aid in fire suppression, comprising:
a fuel delivery path extending from a source of cooking fuel to a heating element of the cooking appliance;
a source of cooling agent selectively in fluid communication with the fuel delivery path; and
a valve assembly operatively associated with the fuel delivery path and the source of cooling agent, wherein the valve assembly is configured to control the delivery of a fuel and cooling agent to the heating element of the cooking appliance and configured to control shut off of the heating element from the source of cooking fuel in the event of a fire, wherein the cooking appliance includes a cooking volume containing cooking oil therein and the heating element is located within or below the cooking volume of the cooking appliance, wherein the heating element is configured to retain the cooling agent within the heating element when the cooling agent is delivered to the heating element such that no cooling agent is added to the cooking oil.

2. The system of claim 1 , wherein the valve assembly has a position permitting fluid communication between the source of cooking fuel and the heating element through the fuel delivery path, while preventing fluid communication between the source of cooling agent and the heating element through the fuel delivery path.

3. The system of claim 1 , wherein the valve assembly has a position preventing fluid communication between the source of cooking fuel and the heating element through the fuel delivery path, while permitting fluid communication between the source of cooling agent and the heating element through the fuel delivery path.

4. The system of claim 1 , further comprising an actuation mechanism connected to the valve assembly for facilitating movement of the valve assembly from a first positon to a second position.

5. The system of claim 4 , wherein the actuation mechanism is mechanically actuated.

6. The system of claim 4 , wherein the actuation mechanism is electrically actuated.

7. The system of claim 4 , wherein the actuation mechanism is operatively associated with a condition sensor.

8. The system of claim 1 , wherein the cooking appliance is a deep fryer.

9. The system of claim 8 , wherein plural sources of fire suppression agent are in fluid communication with the valve assembly.

10. A system for cooling a gas-fueled cooking appliance to aid in fire suppression, comprising:
a fuel delivery path extending from a source of cooking fuel to a burner of the cooking appliance, wherein the cooking appliance includes a cooking volume containing cooking oil therein and the heating element is located within or below the cooking volume of the cooking appliance;
a source of cooling agent selectively in fluid communication with the fuel delivery path, wherein the heating element is configured to retain the cooling agent within the heating element when the cooling agent is delivered to the heating element such that no cooling agent is added to the cooking oil; and
a valve assembly operatively associated with the fuel delivery path and the source of cooling agent configured to control the delivery of a fuel and cooling agent to the heating element of the cooking appliance and configured to control shut off of the heating-element from the source of cooking fuel in the event of a fire, the valve assembly having:
a first position permitting fluid communication between the source of cooking fuel and the burner through the fuel delivery path, while preventing fluid communication between the source of cooling agent and the burner through the fuel delivery path; and
a second position preventing fluid communication between the source of cooking fuel and the burner through the fuel delivery path, while permitting fluid communication between the source of cooling agent and the burner through the fuel delivery path in the event of a fire.

11. The system of claim 10 , wherein the cooking appliance is a deep fryer.

12. The system of claim 10 , further comprising an actuation mechanism connected to the valve assembly for facilitating movement of the valve assembly from the first position to the second position.

13. The system of claim 12 , wherein the actuation mechanism is mechanically actuated.

14. The system of claim 12 , wherein the actuation mechanism is electrically actuated.

15. The system of claim 12 , wherein the actuation mechanism is operatively associated with a condition sensor.

16. A method of cooling a gas-fueled deep fryer having a cooking volume containing cooking oil therein to aid in fire-suppression, comprising:
connecting a source of cooling agent to a fuel delivery path extending from a source of cooking fuel to a heating element of the deep fryer; and
controlling with a valve assembly the delivery of cooling agent to the heating element of the deep fryer; and
controlling with the valve assembly to shut off a cooking fuel from a source of cooking fuel to the heating element, wherein the heating element is configured to retain the cooling agent within the heating element when the cooling agent is delivered to the heating element such that no cooling agent is added to the cooking oil.

17. The method of claim 16 , wherein the step of facilitating the actuation of a valve assembly involves facilitating the mechanical actuation of the valve assembly.

18. The method of claim 16 , wherein the step of facilitating the actuation of a valve assembly involves facilitating the electrical actuation of the valve assembly.

Assignees

• Carrier Corp

Inventors

• Kjellman Thomas

Classifications

• A62C2/04

  Removing or cutting-off the supply of inflammable material · CPC title

• A62C35/68

  Details, e.g. of pipes or valve systems (valves in general F16K) · CPC title

• A62C37/44

  only the sensor being in the danger zone · CPC title

• A47J37/1247

  Details of the burners; Details of the channels for guiding the combustion gases · CPC title

• A62C37/40

  with electric connection between sensor and actuator · CPC title