REFRIGERANT PRESSURE REGULATING MEMBER OF CATHODE RAY TUBE COUPLER CAPABLE OF MAINTAINING INTERNAL PRESSURE OF COUPLER AT LEVEL SAME AS ATMOSPHERIC PRESSURE

摘要

PURPOSE: A refrigerant pressure regulating member is provided to prevent a refrigerant leakage by using a material having air permeability such that the internal pressure of a coupler is maintained at the level same as an atmospheric pressure. CONSTITUTION: A refrigerant pressure regulating member(21) is made of a material having an air permeability, and arranged in the uppermost position from the gravity direction so as to allow for ease of air flow, when the refrigerant pressure regulating member is assembled to a projection set. The material having an air permeability is one selected from Gore-Tex, micro tex, or micro pore.