专利名称：VALVE FOR RADIATION DETECTION OF LOW
PRESSURE IN PNEUMATIC TIRES
发明人：JOHNSEN E,CA申请号：US3801787D申请日：19700121公开号：US3801787A公开日：19740402
摘要：A pressurized attachment for the valve of a pneumatic tire, the attachmenthousing, in a shielded manner, a small amount of radioactive material. The attachment hasa pressure chamber on one end thereof, the other end communicating directly with thepneumatic tire. If the pressure in the tire falls below a predetermined limit, the
radioactive material escapes from its shielded housing and flows into the tire. Radioactiveemissions then pass through the housing of the tire and are detected by a sensing device.The sensing device is coupled to the instrument panel of the associated vehicle andserves to indicate a leak in the tire.
申请人：JOHNSEN E,CA
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