IP Library Granted Patent US 9,058,731
Granted Patent B2
US 9,058,731 · App. 14/047,938 · Granted Jun 16, 2015

Smoke detector with airflow barrier

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Quick Facts
Patent No.
US 9,058,731
App. No.
14/047,938
Granted
Jun 16, 2015
Kind
B2
Abstract

A smoke detector system that includes an airflow barrier installed between a detector base unit and a mounting surface to ensure there is separation between the detector base unit and the mounting surface. The barrier isolates and seals the smoke detector to prevent the formation of condensation in or around the smoke detector. The barrier further includes a cavity that can collect condensation if condensation does occur. The condensation is then directed to a channel that extends around the periphery of the airflow barrier. Additionally, the channel includes weep holes so that condensation has a means to exit the detector.

Claims (22)

1. A detector system comprising:

a smoke detection engine for detecting smoke;

a detector base unit for mounting the smoke detection engine to a mounting surface; and

an airflow barrier between the mounting surface and the detector base unit;

wherein the airflow barrier includes a channel on a periphery of the airflow barrier that receives fluids and the airflow barrier is comprised of outer barrier and a gasket that is seated in a center portion of the outer barrier, in which the gasket includes pass through locations to allow installation hardware and/or wires to puncture the gasket while forming a seal around the installation hardware and/or wires to prevent the fluids from entering the detector base unit.

2. The system according to claim 1 , wherein the channel includes one or more weep holes within the channel to drain the received fluids from the channel.

3. The system according to claim 1 , wherein the gasket is fabricated from rubber, silicone, or plastic.

4. The system according to claim 1 , wherein the detector base unit includes contact points to interface with the smoke detection engine.

5. The system according to claim 1 , wherein the detector base unit is connected to a relay that controls a fire door.

6. The system according to claim 1 , wherein the airflow barrier creates a cavity between the mounting surface and the airflow barrier to collect fluids.

7. The system according to claim 6 , wherein a center portion of the airflow barrier is recessed to create the cavity.

8. The system according to claim 1 , wherein the airflow barrier is dome shaped to direct the fluids toward the channel on the periphery of the airflow barrier.

9. A method for implementing a detector system, the method comprising:

providing a smoke detection engine for detecting smoke;

mounting the smoke detection engine to a detector base unit, which is installed mounted to a mounting surface;

installing an airflow barrier between the mounting surface and the detector base unit; and

wherein the airflow barrier includes a channel on a periphery of the airflow barrier that receives fluids and the airflow barrier is comprised of an outer barrier and a gasket that is seated in a center portion of the outer barrier, in which the gasket includes pass through locations to allow installation hardware and/or wires to puncture the gasket while forming a seal around the installation hardware and/or wires to prevent the fluids from entering the detector base unit.

10. The method according to claim 9 , wherein the channel includes one or more weep holes to drain the received fluids from the channel.

11. The method according to claim 9 , further comprising connecting the detector base unit to a relay that controls a fire door.

12. The method according to claim 9 , wherein the airflow barrier creates a cavity between the mounting surface and the airflow barrier to collect fluids.

13. The method according to claim 12 , wherein a center portion of the airflow barrier is recessed to create the cavity.

14. The method according to claim 9 , wherein the airflow barrier is dome shaped to direct the fluids toward the channel on the periphery of the airflow barrier.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 30, 2021
From: JOHNSON CONTROLS FIRE PROTECTION LP
To: JOHNSON CONTROLS US HOLDINGS LLC
Reel/Frame 058599/0339 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 30, 2021
From: JOHNSON CONTROLS US HOLDINGS LLC
To: JOHNSON CONTROLS INC
Reel/Frame 058599/0922 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 30, 2021
From: JOHNSON CONTROLS INC
To: JOHNSON CONTROLS TYCO IP HOLDINGS LLP
Reel/Frame 058600/0047 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2019
From: TYCO FIRE & SECURITY GMBH
To: JOHNSON CONTROLS FIRE PROTECTION LP
Reel/Frame 049671/0756 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 10, 2014
From: SIMPLEXGRINNELL LP
To: TYCO FIRE & SECURITY GMBH
Reel/Frame 032229/0201 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2013
From: ANDREWS, ALEXANDER SINGER; BRIGHENTI, DONALD DUNN
To: SIMPLEXGRINNELL LP
Reel/Frame 031369/0705 →