Test ring for gasoline pump nozzle in automobile industry, is separately provided inside filler tube without direct contact with exterior of tube, where safety point senses impulses from identification point and again provides impulses

摘要

The ring (200) is separately provided inside a filler tube without direct contact with the exterior of the tube. The ring provides a mechanical transmission to an identification device. A safety point (600) senses or records the impulses from an identification point (501) and again provide the impulses. The safety point and the identification point are not in direct contact with each other. The safety point detects whether a filler cap is screwed on a filler neck. A supply protection system generates counter pressure through a spring.