Smoke chamber

US6778091B2 · kind B2 · utility

Inventors

• James Qualey · Rindge, US
• Louis Desmarais · Montréal, CA
• Jayanthi Prasad · Lexington, US
• Lawrence G. Stanley · Templeton, US
• Donald D. Brighenti · Westminster, US

Key dates

• Filing date: Jan 9, 2001
• Grant date: Aug 17, 2004
• Expiry date: Jun 19, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G08B17/113
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A smoke detecting chamber for use in a light-scattering type smoke detector is provided which includes a chamber cover that forms one side of the smoke detecting chamber. The chamber cover includes a plurality of first baffles that prevent external light from entering the smoke chamber. The smoke detector further includes a chamber base that forms another side of the smoke detecting chamber, the chamber base including a plurality of second baffles that intermesh with the first baffles when the smoke detecting chamber is formed.