Patent ID: 8278576

Claim:
A pneumatically actuated switching device comprising: a housing having an air chamber; a conductive plunger and a contact spring in association with the air chamber of the housing; an electrical connection having a first portion extending from the housing and comprising an electrical conductive element receivable in a receptacle of a wall switching unit, and a second portion extending into the air chamber of the housing; and an interchangeable air connector assembly constructed to be connected to the housing and comprising an air conduit extending from the air connector assembly and connectable to a pneumatic actuator for generating and discharging a quantity of pressurized air; the air conduit of the interchangeable air connector assembly being in communication with the air chamber of the housing for receiving the pressurized air from the pneumatic actuator, which pressurized air is directed into the air chamber of the housing to force the conductive plunger against the electrical connection for completing a circuit for generating a signal in the patient call system; the interchangeable air connector assembly constructed to selectively position the air conduit of the interchangeable air connector assembly at a predetermined angle relative to the electrical connection.