Dear Luca,

I searched the eLibrary on this wbsite, for Bin Activtor, and found this:

3 Articles found:

Name of Author: Griscom, S.

Company Affiliation: NAVCO National Air Vibrator Co.

Title of Article: Bin Vibrators Offer Cost Effective Alternative to Bin Activator

Published in Journal: bulk solids handling

Year: 1988 Volume: 8 Number: 1 Page: 36

Type of Article: Technical Note

Fields of Interest: Silos, Bins and Domes

Name of Author: Hurban, R.T., Singley, M.E.

Company Affiliation: Rutgers University

Title of Article: Baffled Bin Activator Discharges Fibrous Materials

Published in Journal: bulk solids handling

Year: 1986 Volume: 6 Number: 4 Page: 783

Type of Article: Original Article

Fields of Interest: Discharge Systems / Silos, Bins and Domes

Article published in 'The Best of ...' book: A/94 (Silos, Hoppers, Bins & Bunkers for Storing Buk Materials)

Name of Author: Wahl, R.

Company Affiliation: Vibra Screw Inc.

Title of Article: The Design and Operation of Bin Activators

Published in Journal: bulk solids handling

Year: 1981 Volume: 1 Number: 1 Page: 43

Type of Article: Original Article

Fields of Interest: Mechanical Conveying / Silos, Bins and Domes

Article published in 'The Best of ...' book: K/86 (Sampling, Weighing & Proportioning of Bulk Materials)

I am sure there are many more articles, and perhaps more recent one , or perhaps you search the eLibrary at http://www.bulk-online.com/ELIB/index.php?inc=3 for similar search workds.

Reinhard Wohlbier ■