IP Library Granted Patent US 11,790,746
Granted Patent B2
US 11,790,746 · App. 17/581,401 · Granted Oct 17, 2023

Smoke entry solution for multi wave multi angle safety device

Inventors: Dennis Michael Gadonniex (Bradenton, FL); Kenneth J. Mott (Colorado Springs, CO)
Assignee: CARRIER CORPORATION
G08B17/103G08B17/113
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Quick Facts
Patent No.
US 11,790,746
App. No.
17/581,401
Granted
Oct 17, 2023
Kind
B2
Abstract

An optical chamber assembly of a life safety device includes a light ring for supporting at least one light device and an optical cover defining an interior chamber of the optical chamber assembly. The optical cover has a plurality of side members spaced from one another to define a plurality of smoke flow paths connected to the interior chamber. A light cover is disposed between the light ring and the optical cover and optically couples the at least one light device with the interior chamber. A primary smoke entry location is defined by at least one of the plurality of smoke flow paths in the optical cover and a secondary smoke entry location distinct from the primary smoke entry location is arranged in fluid communication with the interior chamber.

Claims (30)

1. An optical chamber assembly of a life safety device, the optical chamber assembly comprising:

a light ring for supporting at least one light device;

an optical cover defining an interior chamber of the optical chamber assembly, the optical cover comprising a plurality of side members spaced from one another to define a plurality of smoke flow paths connected to the interior chamber; and

a light cover disposed between the light ring and the optical cover, wherein the light cover optically couples the at least one light device with the interior chamber;

a primary smoke entry location defined by at least one of the plurality of smoke flow paths in the optical cover; and

a secondary smoke entry location distinct from the primary smoke entry location, the secondary smoke entry location being arranged in fluid communication with the interior chamber.

2. The optical chamber assembly of claim 1 , wherein the secondary smoke entry location is arranged at an outer aspect of the optical chamber assembly.

3. The optical chamber assembly of claim 1 , wherein the secondary smoke entry location is defined by an opening.

4. The optical chamber assembly of claim 3 , wherein the opening is formed between at least one of the plurality of side members and a surface of the light cover.

5. The optical chamber assembly of claim 3 , wherein the optical cover further comprises an end piece and the opening is formed between at least one of the plurality of side members and the end piece.

6. The optical chamber assembly of claim 3 , wherein the light cover includes a body having a sidewall and the opening is formed within the sidewall.

7. The optical chamber assembly of claim 3 , wherein the opening is formed between a portion of the light cover and the light ring.

8. The optical chamber assembly of claim 7 , wherein the light cover includes a body having a sidewall and the light ring includes a ring body, the opening being formed between a portion of the sidewall of the light cover that is offset from an adjacent surface of the ring body.

9. The optical chamber assembly of claim 1 , wherein the at least one light device includes a light source and a light receiver.

10. The optical chamber assembly of claim 1 , wherein the optical chamber assembly is mounted to a printed circuit board and the light cover removably couples the light ring directly to the printed circuit board.

11. The optical chamber assembly of claim 1 , wherein the optical cover is connected to the light cover via a snap fit connection.

12. A life safety device comprising:

a printed circuit board;

an optical chamber assembly connected to the printed circuit board, the optical chamber assembly comprising a primary smoke entry location and a secondary smoke entry location distinct from the primary smoke entry location;

at least one light device for evaluating particles within the inside the optical chamber assembly;

a light ring for supporting the at least one light device;

an optical cover defining an interior chamber of the optical chamber assembly, and

a light cover disposed between the light ring and the optical cover, wherein the light cover optically couples the at least one light device with the interior chamber.

13. The life safety device of claim 12 , wherein the secondary smoke entry location is arranged about an outer aspect of the optical chamber assembly.

14. The life safety device of claim 12 , wherein the optical cover further comprises a plurality of side members spaced from one another to define a plurality of smoke flow paths connected to the interior chamber and the primary smoke entry location is defined by at least one of the plurality of smoke flow paths.

15. The life safety device of claim 14 , wherein the secondary smoke entry location is defined by an opening formed between at least one of the plurality of side members and a surface of the light cover.

16. The life safety device of claim 14 , wherein the optical cover further comprises an end piece and the secondary smoke entry location is defined by an opening formed between at least one of the plurality of side members and the end piece.

17. The life safety device of claim 12 , wherein the light cover includes a body having a sidewall and the secondary smoke entry location is defined by an opening formed within the sidewall.

18. The life safety device of claim 12 , wherein the secondary smoke entry location is defined by an opening formed between a portion of the light cover and the light ring.

19. The life safety device of claim 12 , wherein the secondary smoke entry location is defined by an opening, and the opening includes a mesh material.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 10, 2025
From: CARRIER CORPORATION; CARRIER GLOBAL CORPORATION; CARRIER FIRE & SECURITY EMEA; CARRIER FIRE & SECURITY, LLC; CARRIER CANADA CORPORATION; CLIMATE, CONTROLS & SECURITY ARGENTINA S.A.; KIDDE IP HOLDINGS , INC.; KIDDE LTD.; KIDDE PRODUCTS LTD.; CARRIER TRANSICOLD AUSTRIA GMBH; CARRIER TRANSICOLD FRANCE SCS
To: KIDDE FIRE PROTECTION, LLC
Reel/Frame 072829/0574 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 24, 2022
From: GADONNIEX, DENNIS MICHAEL; MOTT, KENNETH J.
To: CARRIER CORPORATION
Reel/Frame 058735/0953 →
Continuity (2)
Provisional Application 63144724 · Feb 2, 2021
Related Publication 20220246009A1 · Aug 4, 2022
Cited By (3)
US 1,120,787 US 12,274,903 US 12,274,904