Doorbell base

Details Doorbell base Doorbell base

1996-06-28

1997-09-16

Hofsass, Jeffery

Communications: electrical

Audible indication

Percussion-type sound producer

3403924, 3403932, G10K 126

Patent

active

056685270

ABSTRACT:
A doorbell base is made integrally and composed of a receiving frame having a frame plate for fastening a PC board, a plurality of locating protuberances for fastening a plurality of striking devices, a plurality of receiving slots for locating batteries serving as a power source of the PC board, a plurality of locating pieces for locating a plurality of chiming devices, and a plurality of protruded edges having a fastening hole engageable with a fastening screw for fastening the doorbell base with a wall in conjunction with a bracing plate.

REFERENCES:
patent: 2014442 (1935-09-01), Miller
patent: 2205189 (1940-06-01), Edwards
patent: 2219036 (1940-10-01), Mason
patent: 2245453 (1941-06-01), Warren
patent: 2386738 (1945-10-01), Corbett
patent: 2470600 (1949-05-01), Bossard

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