Detector assembly suited to smoke alarms

Details Detector assembly suited to smoke alarms Detector assembly suited to smoke alarms

2003-12-18

2008-08-19

Swarthout, Brent (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S693200, C340S693600, C340S693700, C340S693110

Reexamination Certificate

active

07414538

ABSTRACT:
A detector assembly (10) powered by mains electricity and an elongate backup battery (76) is disclosed. The assembly includes: a ceiling mountable base (10) having a body defining a downwardly opening socket (24); a detector module (20) having a battery support portion (75) for holding the battery (76) in a vertical orientation, the module (20) receivable by the socket (24); a quick connection means for mechanically and electrically connecting the module (20) to the base (10); and shutter (50) mounted to the base (10). The shutter (50) prevents operation of the quick connection means when no vertical battery (76) is installed within the module (20). The quick connection means comprises co-operable pairs of conductors. The conductor pairs transmit power from the base (10) to the module (20). The pairs of conductors each comprise a stud conductor mounted to the base (10) and a forked conductor mounted to the module (20).

REFERENCES:
patent: 4257039 (1981-03-01), Webb et al.
patent: 4870395 (1989-09-01), Belano
patent: 4881063 (1989-11-01), Fawcett
patent: 4959640 (1990-09-01), Hall
patent: 5103216 (1992-04-01), Sisselman
patent: 5280273 (1994-01-01), Goldstein
patent: 5596314 (1997-01-01), Goldstein
patent: 5820406 (1998-10-01), Hetherington
patent: 6160487 (2000-12-01), DeLuca
patent: 6172612 (2001-01-01), Odachowski
patent: 6246324 (2001-06-01), Messenger et al.

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