CA2113974A1 - Smoke Alarm and Air Cleaning Device - Google Patents
Smoke Alarm and Air Cleaning DeviceInfo
- Publication number
- CA2113974A1 CA2113974A1 CA 2113974 CA2113974A CA2113974A1 CA 2113974 A1 CA2113974 A1 CA 2113974A1 CA 2113974 CA2113974 CA 2113974 CA 2113974 A CA2113974 A CA 2113974A CA 2113974 A1 CA2113974 A1 CA 2113974A1
- Authority
- CA
- Canada
- Prior art keywords
- smoke alarm
- air cleaner
- smoke
- alarm unit
- cleaner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000779 smoke Substances 0.000 title abstract 5
- 238000004140 cleaning Methods 0.000 title abstract 2
- 230000003134 recirculating effect Effects 0.000 abstract 1
Landscapes
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
An air cleaner with a smoke alarm unit for a forced air recirculating system is disclosed. The smoke alarm unit is housed within a module that fits within the frame of the air cleaner with minimal impact on the cleaning ability of the cleaner. In a preferred embodiment of the invention, a battery capacity tester and air cleaner functionality detector are included in the module. Signals from the battery tester and functionality detector are used by the smoke alarm unit to drive an alarm generator with different signals to produce distinguishable alarms for a smoke condition, low battery condition, and an air cleaner failure. A control unit may receive any of the alarm conditions to execute different control actions in the forced air system.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/007,668 US5451929A (en) | 1991-07-02 | 1993-01-22 | Smoke alarm and air cleaning device |
US007,668 | 1993-01-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2113974A1 true CA2113974A1 (en) | 1994-07-23 |
CA2113974C CA2113974C (en) | 1998-04-28 |
Family
ID=21727491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2113974 Expired - Fee Related CA2113974C (en) | 1993-01-22 | 1994-01-21 | Smoke alarm and air cleaning device |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2113974C (en) |
-
1994
- 1994-01-21 CA CA 2113974 patent/CA2113974C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2113974C (en) | 1998-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |