Patent ID: 9168473
Filing Date: 2015-10-27
Classification: B01D,B29C

Abstract:
1. A vacuum loader for feeding powder to a molding machine, said loader comprising; a vacuum operated pickup for conveying powder/dust, said pickup being connected to a vacuum source; a generally frusto-conical loading chamber having an inlet opening oriented tangentially into an upper portion of said frusto-conical loading chamber; a separation chamber also of frusto-conical shape and having a bottom portion communicating with said loading chamber upper portion, said separation chamber having a closed top portion; an intensifying chamber inside said separation chamber, said intensifying chamber having a closed top portion defining an opening to the vacuum source, said intensifying chamber defining a plurality of tangentially oriented inlets from said separation chamber opening into said intensifying chamber adjacent said top portion thereof; a collection tube carried by a lower portion of said intensifying chamber and extending downwardly into said loading chamber, said collection tube having an open lower end spaced above an open lower end of said loading chamber; dual valve elements for selectively closing the open lower ends of said loading chamber and said collection tube; and a control system for opening and closing said dual valve elements, in timed relation to operation of the vacuum source and in response to an input signal indicative of the needs of the processing machine.