Patent ID: 7790996

Claim:
An emergency push-button device, comprising: a housing comprising at least one guide surface; an actuator supported by the housing and being reciprocable along a generally linear axis between an actuated position and a released position, the actuator having at least one indicator window located thereon; and an indicator disposed proximal to the actuator and being biased for movement therewith, the indicator comprising an indicator surface having indicia thereon that provides status of the emergency push-button and that is configured to be selectably viewable through the at least one indicator window of the actuator, the indicator comprising at least one arm extending therefrom and being engageable with the at least one guide surface and upon reciprocation of the actuator to the actuated position the at least one arm is configured to be urged by the at least one guide surface of the housing to a position whereby the indicator is moved and, in turn, the indicia, to reflect a change in status that is viewable through the at least one indicator window; wherein the indicator is rotatably disposed and rotates to a position where the indicia is viewable through the at least one indicator window; wherein the actuator comprises a working surface and the at least one indicator window is located on the working surface; and wherein the housing comprises a housing cavity and further comprising: a rotor biased within the housing cavity and being rotatable about a rotor axis that is generally parallel to the linear axis of the actuator; a pin; a plunger also located within the housing cavity and being interconnected with the rotor via the pin and having a cavity dimensioned and configured to provide a helical path for the pin; and a piston, engageable with the plunger and supporting the plunger.