Christmas tree fire detector and alarm
OwnerDonald A. Whiteinventor
Life of this patent
Estimating the term…
Abstract
A fire detector and alarm is provided with means to mount it on a Christmas tree so as to be activated by the rapid buildup and intense heat of a Christmas tree fire. The power may be derived from a battery or the standard socket of a string of Christmas tree lights or from the electrical circuit with any Christmas tree decoration. The decorative shape of the alarm housing has a plurality of openings consistent with such decorative shape for passing the sound therethrough, and further is provided with a resonance chamber. With closure of a bimetallic switch, the heat of the fire will melt the solder of the switch contacts so that with subsequent cooling, the solder will harden prior to opening of the bimetallic contacts, so that they will remain closed even after cooling.
Claims15
A Christmas tree ornament and fire alarm, comprising:
- a housing having an interior chamber;
- means for mounting the housing on the upper portion of a Christmas tree;
- detector means in communication with the environment exterior of the housing for providing a signal in response to a fire within the Christmas tree;
- means within the interior of said housing for providing an audible fire alarm in response to said signal;
- and a plurality of openings through said housing for passing the audible fire alarm signal from the interior of said housing to the exterior of said housing.
A fire alarm, comprising:
- a housing providing an interior chamber;
- detector means in communication with the environment exterior of the housing for providing a signal in response to a fire;
- electrical means completely within the interior of said housing for providing an audible fire alarm in response to said signal;
- a plurality of openings through said housing for passing the audible fire alarm signal from the interior of said housing to the exterior of said housing said detector means completely exterior of said housing;
- a heat shield sealingly between said detector means and the interior chamber of said housing;
- electrical conductor means passing through said heat shield for transfering said detector means signal from said detector means to said means for producing an audible signal;
- a unitary circuit board having said audible alarm means mounted solely on one end and said detector means mounted solely on the other end, so that all of the electrical components including said detector means and audible alarm means are mounted on said unitary circuit board independently of said housing for interchangeable assembly in different shaped housings.
Dependencies are inferred from the claim text.