초록 ▼

This invention relates to apparatus and methods for in-line testing for leaks in flexible containers traveling along a production line at high speeds. The apparatus inspects semi-rigid plastic containers at a high capacity by using multiple sensors at fixed displacements along a compression section

This invention relates to apparatus and methods for in-line testing for leaks in flexible containers traveling along a production line at high speeds. The apparatus inspects semi-rigid plastic containers at a high capacity by using multiple sensors at fixed displacements along a compression section while analyzing the response of the sensors such that internal pressure decays of leaky containers are readily discernible without interrupting the flow of the production line.

대표청구항 ▼

1. An apparatus for testing flexible containers, said apparatus comprising:in-line means for applying a predetermined compression over a predetermined time to a plurality of containers as they travel along a production line; at least two sensors spaced apart with respect to one another at predetermi

1. An apparatus for testing flexible containers, said apparatus comprising:in-line means for applying a predetermined compression over a predetermined time to a plurality of containers as they travel along a production line; at least two sensors spaced apart with respect to one another at predetermined positions along the path of travel taken by the containers while said containers have said predetermined compression applied by said in-line means, each of said at least two sensors being arranged to generate a response that varies in accordance with the internal pressure of said containers as they pass by said sensor; and means for receiving said responses and analyzing them for the presence of leaks in said containers.