Emergency light and smoke alarm system
US4617561A · kind A · utility
27Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1985 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | Mar 11, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21L4/085
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An emergency light and smoke alarm system comprises a smoke detector mounted in a housing for detecting smoke and producing an audible and visual signal in response to the detected smoke. A flashlight is mounted on a bracket provided on the housing such that a portion of the bracket physically and electrically separates the battery terminals of the flashlight at their normal interface. When the flashlight is removed from the bracket the battery terminals are pushed into contact by a spring which turns on the flashlight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.