Self timing switch

Self timing switch

A switch adapted to fit into a conventional switch box controls an entryway light of a building. The switch is connected to a conductive latch in a door controlling access to the entryway to receive the minute electrical charge carried by a person attempting to operate the latch. Upon being triggere...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ALEXANDER, JERRY L
Format: Patent
Sprache:eng
Schlagworte:
ACCESSORIES THEREFOR
ALARM SYSTEMS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
FIXED CONSTRUCTIONS
HANDCUFFS
KEYS
LOCKS
ORDER TELEGRAPHS
PHYSICS
PULSE TECHNIQUE
SAFES
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
WINDOW OR DOOR FITTINGS
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Beschreibung
Zusammenfassung:A switch adapted to fit into a conventional switch box controls an entryway light of a building. The switch is connected to a conductive latch in a door controlling access to the entryway to receive the minute electrical charge carried by a person attempting to operate the latch. Upon being triggered by such a charge, the switch will turn on the light for a predetermined time to provide a convenience for those authorized to enter, and a deterrent for those who are not.