Retractable tamper resistant annunciator

Details Retractable tamper resistant annunciator Retractable tamper resistant annunciator

1996-04-04

1997-10-28

Hofsass, Jeffery

Communications: electrical

Systems

Annunciator

340332, 340691, 220343, 49 2, G08B 500

Patent

active

056821310

ABSTRACT:
An improved retractable tamper resistant annunciator that can be mounted flush in a supporting structure is described. The annunciator mechanism includes a housing that has an actuatable cover. Signaling devices are enclosed within the housing, and can be selectively actuated when the cover is opened. A mechanism to open and close the cover to expose the signaling devices or to cover the signaling devices include a reversible motor structure. Alternative mechanisms to open and close the cover include biasing structures to move the cover in a first direction and an electrical device to move the cover in a second direction

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