Pressure responsive switch having freely disposed disc - has flexible thin gasket positioned over disc and is sealed to base

摘要

The pressure responsive electrical switch uses precalibrated snap acting monometallic or bimetallic discs freely disposed in a disc seat formed on a base member. Over pressure protection in the form of a surface spaced just beyond the normal snapped position may be provided to avoid calibration changes. A flexible thin gasket is positioned over the disc and is sealed to the base by trapping between the base and a cap which is clamped to the base. A rocker member having a specially curved surface rests on a movable contact arm and transfers motion from the disc to the movable arm.