(under subclass 150.1) Subject matter wherein the feed means includes variable means for controlling the relative quantities of different materials fed by the feed means to the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8, and 16+, for a mortar mixing method or mortar mixer type apparatus involving proportioning of plural ingredients.
152.1+, for a similar device wherein the mixing ratio is controlled by a condition sensor.
162.1+, for means feeding materials to a mixing chamber in a predetermined ratio that is not adjustable.
