Patent ID: 6804873
Filing Date: 2004-10-19
Classification: B29C,B29L,B65B,G01N,Y10T

Abstract:
A method of manufacturing filled containers comprising the steps of:providing at least a first and a second part of the container; providing a product within at least one of said first and said second parts; assembling said first and said second parts by bonding a portion of said first part to a portion of said second part, thereby generating a bond area; scanning along said bond area with a transmitted beam of a pulse train of ultrasonic energy; sensing a reflected pulse train of ultrasonic energy from said bond area; determining time derivative of at least one of time lag and of amplitude of said sensed pulse train; generating a signal indicative of the quality of said bond along said bond area by comparing at least one of said time derivatives with a predetermined threshold value; separating said container if said indicative signal indicates a bond along said bond area being inaccurate.