IP Library Granted Patent US 11,491,356
Granted Patent B2
US 11,491,356 · App. 16/754,526 · Granted Nov 8, 2022

System and method for delivering fire suppression agent to an obstructed gas appliance

Inventor: Thomas Kjellman (Uxbridge, MA)
Assignee: Carrier Corporation
A62C3/006A62C2/04A62C37/44F23D14/72
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Quick Facts
Patent No.
US 11,491,356
App. No.
16/754,526
Granted
Nov 8, 2022
Kind
B2
Abstract

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

Claims (34)

1. A system for delivering fire suppression agent to a cooking appliance, comprising:

a fuel delivery path extending from a source of cooking fuel to a burner of the cooking appliance;

a source of fire suppression agent selectively in fluid communication with the fuel delivery path;

a valve assembly operatively associated with the fuel delivery path and the source of fire suppression agent, wherein the valve assembly is configured to control the delivery of fire suppression agent to the burner of the cooking appliance and shut off the burner from the source of cooking fuel without having to provide dedicated piping to deliver the fire suppression agent,

wherein plural cooking appliances are in fluid communication with the valve assembly via separate fuel delivery paths, wherein the plural cooking appliances include different types of cooking appliances; and

a deflector switch disposed at a junction between the plural cooking appliances configured to control the flow of fire suppressing agent to one or more of the plural cooking appliances.

2. The system of claim 1 , wherein the valve assembly has a 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 fire suppression agent and the burner 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 burner through the fuel delivery path, while permitting fluid communication between the source of fire suppression agent and the burner through the fuel delivery path.

4. The system of claim 3 , further comprising an actuation mechanism operatively associated with the valve assembly for moving the valve assembly from the first positon to the 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 has an obstructed cooking volume and the burner is located within said cooking volume.

9. The system of claim 1 , wherein plural sources of fire suppression agent are in fluid communication with the valve assembly.

10. A system for delivering fire suppression agent to a cooking appliance, comprising:

a fuel delivery path extending from a source of cooking fuel to a burner of the cooking appliance;

a source of fire suppression 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 delivering fire suppression agent, 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 fire suppression 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 fire suppression agent and the burner through the fuel delivery path in the event of a fire, without having to provide dedicated piping to deliver the fire suppression agent,

wherein plural cooking appliances are in fluid communication with the valve assembly via separate fuel delivery paths, wherein the plural cooking appliances include different types of cooking appliances; and

a deflector switch disposed at a junction between plural cooking appliances configured to control the flow of fire suppressing agent to one or more of the plural cooking appliances.

11. The system of claim 10 , wherein the cooking appliance has an obstructed cooking volume and the burner occupies said cooking volume.

12. The system of claim 10 , further comprising an actuation mechanism connected to the valve assembly to facilitate 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 delivering fire suppression agent to a cooking appliance, comprising:

connecting a source of fire suppression agent to a fuel delivery path extending from a source of cooking fuel to a burner of the cooking appliance; and

facilitating the delivery of fire suppression agent to the burner of the cooking appliance as cooking fuel to the burner is shut off from a source of cooking fuel, without having to provide dedicated piping to deliver the fire suppression agent, in the event of a fire,

wherein plural cooking appliances are in fluid communication with the valve assembly via separate fuel delivery paths, wherein the plural cooking appliances include different types of cooking appliances, wherein facilitating includes, controlling a deflector switch disposed at a junction between the plural cooking appliances to facilitate the delivery of fire suppressing agent to one or more of the plural cooking appliances.

17. The method of claim 16 , wherein the step of facilitating the delivery of fire suppression agent involves facilitating the actuation of a valve assembly operatively associated with the fuel delivery path and the source of fire suppression agent.

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

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

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Jul 17, 2025
From: CERBERUS BUSINESS FINANCE AGENCY, LLC
To: KIDDE-FENWAL, LLC
Reel/Frame 072039/0243 →
SECURITY INTEREST Recorded Jul 17, 2025
From: KIDDE-FENWAL, LLC
To: MGG INVESTMENT GROUP LP, AS COLLATERAL AGENT
Reel/Frame 072039/0358 →
SECURITY INTEREST Recorded Aug 15, 2024
From: KIDDE-FENWAL, LLC
To: CERBERUS BUSINESS FINANCE AGENCY, LLC
Reel/Frame 068657/0151 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2024
From: KIDDE FENWAL, INC.
To: KIDDE-FENWAL, LLC
Reel/Frame 068263/0432 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2024
From: KIDDE IP HOLDINGS LIMITED; CARRIER CORPORATION; CARRIER FIRE & SECURITY, LLC; CARRIER GLOBAL CORPORATION
To: KIDDE-FENWAL, INC.
Reel/Frame 068218/0738 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2020
From: KJELLMAN, THOMAS
To: CARRIER CORPORATION
Reel/Frame 053523/0191 →
Continuity (2)
Provisional Application 62572164 · Oct 13, 2017
Related Publication 20200238112A1 · Jul 30, 2020