Pneumatic switch for patient call system having multiple-position housing assembly

摘要

A pneumatically actuated switching device is disclosed for forming a momentary electrical signal circuit with a receptacle of a patient call system utilizing a conductive plunger which slides in response to a pulse of pressurized air delivered to an internal chamber through a housing connection which provides for optional assembly orientations. A spring is used to maintain separation between a conductive plunger and the electrical components when the pneumatic switching device is not activated by a patient.