Fire suppression system actuation apparatus and system

Patent metadata

Field	Value
Publication number	US-9381389-B2
Application number	US-201414261312-A
Country	US
Kind code	B2
Filing date	Apr 24, 2014
Priority date	Apr 24, 2014
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

A fire suppression system may comprise a shape memory actuation system. The shape memory actuation system may be configured as a retainer that retains a plug and/or a disk. The shape memory actuation system may be a shape memory plug that is configured to discharge from a vessel exhaust port. The shape memory actuation system may be deployable in response to an electrical stimulus (e.g., resistive heating causing the shape memory alloy to have a temperature exceeding a transition temperature).

First claim

What is claimed is:

1. A fire suppression system, comprising:
a vessel having an opening and configured to contain a pressurized fire suppression agent;
a disk configured to seal the opening of the vessel and retain the pressurized fire suppression agent;
a plug configured to block the opening of the vessel and to support and retain the disk;
a retainer configured to constrain the plug and to non-destructively change shape in response to a change in temperature such that the plug moves relative to the disk and the pressurized fire suppression agent ruptures the disk in response to the plug moving relative to the disk; and
an exhaust port configured to direct a flow of fire suppression agent in response to the disk rupturing.

2. The fire suppression system of claim 1 , wherein the retainer is configured to mount to the exhaust port.

3. The fire suppression system of claim 1 , wherein the retainer is a shape memory alloy.

4. The fire suppression system of claim 1 , wherein the disk has a designed rupture pattern.

5. The fire suppression system of claim 1 , wherein the retainer is configured to change shape in response to receiving an electrical stimulus.

6. The fire suppression system of claim 5 , wherein the retainer is configured to change shape in response to an increase in temperature resulting from the electrical stimulus.

7. The fire suppression system of claim 5 , wherein the retainer is configured to change shape in response to resistive heating resulting from the electrical stimulus.

8. The fire suppression system of claim 1 , wherein the retainer is configured to change shape in response to a fire detection.

9. The fire suppression system of claim 1 , wherein the retainer is configured to non-destructively change shape via at least one of a contraction, an elongation, or an expansion.

Assignees

• Kidde Tech Inc

Inventors

• Chattaway Adam
• Hagge Harlan

Classifications

• A62C37/48

  Thermally sensitive initiators · CPC title

• A62C35/10 Primary

  Containers destroyed or opened by flames or heat · CPC title

• A62C3/08 Primary

  in aircraft {(A62C3/0207 takes precedence)} · CPC title

• A62C3/07

  in vehicles, e.g. in road vehicles · CPC title

• A62C13/76 Primary

  Details or accessories · CPC title