Chamber-less smoke sensor

US9652958B2 · kind B2 · utility

Assignee

• CARRIER CORPORATION · US

Inventors

• Anis Zribi · Colorado Springs, US
• Travis Silver · Colorado Springs, US
• Ken Fasen · Colorado Springs, US
• Anthony Joseph Santistevan · Colorado Springs, US
• Larry R. Ratzlaff · Elgin, US
• Valeriy V. Miagkov · Colorado Springs, US
• Stanley D. Burnette · Colorado Springs, US
• Vipul Patel · Sarasota, US
• Charles Edmund Murphy · Sarasota, US

Key dates

• Filing date: Jun 18, 2015
• Grant date: May 16, 2017
• Expiry date: Jun 18, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G08B17/107
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method for detecting smoke via a chamber-less smoke sensor includes applying one or more filters to eliminate a flooding of ambient light upon the smoke sensor and emitting, by a source, light. At least one detector detects at least a portion of the emitted light and a processor processes the detected light to signal an alarm condition when one or more threshold levels are reached. A chamber-less smoke sensor includes a light source configured to emit light and at least one detector configured to detect at least a portion of the emitted light. An electronic filter and/or a processor is configured to apply one or more filters to eliminate a flooding of ambient light upon the smoke sensor and process the detected light to signal an alarm condition when a threshold level is reached.