SMOKE DETECTORS

A smoke detector for use in detecting the early outbreak of a fire and including a housing defining a smoke chamber, a housing defining a reference chamber, a grid in each of the chambers and an electrostatic shield surrounding each of the grids. The shields are made of an electrically-conductive pl...

Full description

Saved in:
Bibliographic Details
Main Authors VAN DER WALT N,ZA, NEWINGTON T,ZA, BOUT B,ZA
Format Patent
LanguageEnglish
Published 16.07.1974
Subjects
ALARM SYSTEMS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TESTING
Online AccessGet full text

Cover

More Information
Summary:A smoke detector for use in detecting the early outbreak of a fire and including a housing defining a smoke chamber, a housing defining a reference chamber, a grid in each of the chambers and an electrostatic shield surrounding each of the grids. The shields are made of an electrically-conductive plastic material thereby eliminating the possibility of corrosion.
Bibliography:Application Number: US19730373317