Apparatus for testing carbon monoxide alarms
AssigneePatrick Plastics Inc.
InventorsPatrick F. C. Hung, James C. K. Chan
Life of this patent
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Abstract
Apparatus for testing the operation of a carbon monoxide alarm of the type having a casing and a CO sensor extending therefrom, includes a housing sized and configured to receive the casing and to form a gas chamber in communication with the sensor, a source of CO gas, comprising a flammable substance which generates CO gas when burned, and a holder located within the housing for holding the source while the source is being burned. The CO source generates a concentration of carbon monoxide gas within the chamber which is above a pre-selected threshold for a sufficient period of time to trigger an alarm condition.
Claims7
A test apparatus for testing the operation of a carbon monoxide alarm of the type having a casing and a carbon monoxide sensor extending therefrom, comprising:
- (a) a housing sized and configured to receive the casing and to form a gas chamber in communication with the sensor;
- (b) a carbon monoxide source for generating a concentration of carbon monoxide within the gas chamber above a pre-selected threshold for a sufficient period of time to trigger an alarm condition, the carbon monoxide source comprising a flammable substance which generates carbon monoxide gas when burned;
- (c) a holder located within the housing for holding the carbon monoxide source while the carbon monoxide source is being burned;
- and
- (d) wherein the holder comprises a metal fire box, sized to receive the flammable substance.
An apparatus for packaging and testing the operation of a carbon monoxide alarm of the type having a casing and a carbon monoxide sensor extending therefrom comprising:
- (a) a housing sized and configured to receive the casing and to form a gas chamber in communication with the sensor;
- (b) a carbon monoxide source for generating a concentration of carbon monoxide within the gas chamber above a pre-selected threshold for a sufficient period of time to trigger an alarm condition, the carbon monoxide source comprising a flammable substance which generates carbon monoxide gas when burned;
- (c) a holder located within the housing for holding the carbon monoxide source while the carbon monoxide source is being burned;
- (d) wherein the housing forms a portion of the packaging for the carbon monoxide alarm;
- and
- (e) wherein the packaging is a blister pack comprising a plastic blister portion welded to a cardboard backing and the housing comprises the blister portion.
Dependencies are inferred from the claim text.