Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1993-07-14
1995-05-30
Crosland, Donnie L.
Communications: electrical
Audible indication
Percussion-type sound producer
3403924, 3403925, 3403961, 84403, 84410, 116141, G08B 300, G10K 100
Patent
active
054205646
ABSTRACT:
Door chime assembly includes a chime base having a rear plate and at least one resonance chamber secured to said rear plate, a tone bar within the chamber and a striking means mounted on the plate for striking the tone bar. The chime base is molded in a single piece and employs at least one living hinge which permits folding of parts of the assembly to form the resonance chamber. The tone bar is mounted on dowels in the chamber of a length which prevents the tone bar from falling off the dowels during transit.
REFERENCES:
patent: 2245453 (1941-06-01), Warren
patent: 2265815 (1941-12-01), Rittenhouse
patent: 2486680 (1949-11-01), Reck
patent: 3246321 (1966-04-01), Doggart
Crosland Donnie L.
Fred M. Schildwachter & Sons Inc.
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