Improvements in the closure mechanisms for the passage of liquid in boxes or sanitary deposits (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the closing mechanisms for the passage of liquids in boxes or sanitary tanks, essentially characterized, by the inclusion in the closing mechanism, of a guiding or guiding element of the valvular main part, which is a block of solid rubber, imprisoned between washers that fixes it, and another superior element of ballast, which precipitates and guarantees its descent. (Machine-translation by Google Translate, not legally binding)