Alarm signaling device having a touch-to-silence feature
AssigneeSPX Corporation
InventorVincent Victor Le Bel
Life of this patent
Estimating the term…
Abstract
An alarm signaling device (10) that is operable to produce an alarm signal in a room when triggered by a fire alarm control panel. The signaling device includes a silencing circuit (24) that can be activated by a person in the room to temporarily extinguish the alarm signal. The silencing circuit includes a timing circuit (30) and a switch (32) consisting of a pair of touch contacts (38, 40) that are activated by body resistance.
Claims6
An alarm signaling device configured for placement in a room monitored by a fire alarm control panel to provide alarm signaling in the room, the signaling device comprising:
- an alarm operable to provide an alarm signal in the room when triggered by the fire alarm control panel;
- and
- a silencing circuit coupled with the alarm and activatable by a person in the room for temporarily extinguishing the alarm signal, the silencing circuit including
- a timing circuit for extinguishing the alarm signal when triggered and for permitting the alarm to operate normally a predetermined time interval after being triggered, and
- a switch activatable by a person for triggering the timing circuit, the switch including a pair of spaced-apart conductive posts that serve both as touch contacts for triggering the timing circuit when a person simultaneously touches the posts and as a mechanical mount for mounting the silencing circuit to a face plate.
An alarm signaling device configured for placement in a room monitored by a fire alarm control panel to provide alarm signaling in the room, the signaling device comprising:
- a circuit board;
- an alarm mounted to the circuit board and operable to provide an alarm signal in the room when triggered by the fire alarm control panel;
- a silencing circuit mounted to the circuit board and coupled with the alarm and activatable by a person in the room for temporarily extinguishing the alarm signal;
- a face plate for covering the circuit board;
- and
- the silencing circuit including a pair of spaced-apart touch contacts operable to extinguish the alarm signal when a person simultaneously touches both of the contacts and to mount the face plate to the circuit board.
An alarm signaling device configured for placement in a room monitored by a separate fire alarm control panel to provide alarm signaling in the room, the signaling device comprising:
- an alarm operable to provide an alarm signal in the room when triggered by the fire alarm control panel;
- and
- electronic circuitry for powering and controlling operation of the alarm, the electronic circuitry including
- an input for receiving an alarm triggering signal from the fire alarm control panel for triggering the alarm, and
- a silencing circuit coupled with the alarm and activatable by a person in the room for temporarily extinguishing the alarm signal.
Dependencies are inferred from the claim text.