Eduard G Grigorian

US Patent:

20130187752, Jul 25, 2013

Filed:

Jun 9, 2012

Appl. No.:

13/492827

Inventors:

Eduard Grigorian - Fresno CA, US

International Classification:

G06F 7/04

US Classification:

340 58

Abstract:

A coded doorbell chime and a system therefore that is useful for effectively screening visitors at an entrance into the structure by providing one or more different doorbell sounds for different visitors or categories of visitors, such as family, friends and the like. The coded doorbell chime comprises a doorbell activating device, having a housing, a doorbell switch and a keypad associated therewith, and a sound producing mechanism, having a housing, sound generator and a speaker associated therewith, operatively connected to the doorbell activating device. Selected visitors enter a code to produce a first sound identifying them as a person the occupant of the structure knows. Other visitors use the doorbell switch to produce a second sound that identifies them as a person the occupant does not know. Preferably, the doorbell switch is on the outer surface of a moveable cover that hides the keypad when the cover is closed.