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US 2018/0293878 A1Published application
Smoke detector tester
AssigneeThorn Security Limited
InventorStephen Penney
Life of this patent
Estimating the term…
Abstract
The present invention relates to a fire detector testing device for installation with, or retrofitting to, a fire detector. An aerosol generator in fluid connection with a liquid reservoir directs an aerosol towards a detector element of the fire detector in order to test whether smoke entry has been compromised. The liquid reservoir of the present invention may be installed within a base of the detector, between the base and the detector, or in the detector itself.
Claims28
A fire detector testing device, comprising:
- a liquid reservoir;
- and
- a vibrating mesh type aerosol generator, in fluid connection with the liquid reservoir, for generating an aerosol of a liquid from the liquid reservoir, arranged such that, when generated, the aerosol is directed towards a detector element of a fire detector.
A self-test fire detector, comprising:
- a smoke detector having a detector element;
- and
- a fire detector testing device which includes a liquid reservoir and an aerosol generator, in fluid connection with the liquid reservoir, for generating an aerosol of liquid from the liquid reservoir, positioned such that, when generated, the aerosol is directed towards the detector element of the smoke detector;
- wherein the liquid reservoir is at least partially located within the smoke detector.
1 more element
A fire detector testing device, comprising:
- a liquid reservoir;
- an aerosol generator, in fluid connection with the liquid reservoir, arranged such that, when generated, the aerosol is directed towards a detector element of a fire detector;
- and
- a power connector for electrically connecting the testing device to the supply of electrical power for the fire detector.
1 more element
Dependencies are inferred from the claim text.