Fire condition detection and control system for air moving and filtering units
US4818970A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Aug 13, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S236/09
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fire condition detection and control system for use with air moving and filtering units. The system includes one or more remote fire condition detection units, which sense heat or smoke and, upon such sensing, transmit a signal indicative of an alarm condition to one or more air moving and filtering units located within a containment area. The transmission is by wireless radio frequency transmission and/or a wired transmission line or cable. The air moving and filtering units detect the alarm condition and disconnect power to the blower motor of the air moving and filtering unit. The receiver and control circuitry may be integral with the air moving and filtering unit, or may be part of a separate control unit that plugs into conventional air moving and filtering units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.