Abstract: A knob for the cover of a pan or similar container which is used for waterless cooking. The knob is installed in an opening formed in the pan cover. A vent passage extends from the pan cover opening to an outlet in the lower peripheral portion of the knob. A disc is provided for closing the vent passage and a slidable tubular housing is provided with lifting surfaces to lift the disc and open the vent passage. The knob can be partially disassembled for cleaning by rotation of the outer tubular housing.

Abstract: A mixing and conveying apparatus for dry materials, such as granules and powders, which mixes these materials uniformly in desired proportions and conveys them after mixing to desired elevated locations such as feed or storage containers, or the intakes of processing machines. The apparatus includes first and second auger conveyors which are positioned parallel to one another and extend generally in an upright direction. The first auger conveyor has an inlet at the lower end thereof and an outlet near the upper end thereof. The second auger conveyor has its outlet near the upper end thereof. A chamber connects the outlet of the first auger conveyor with the inlet of the second auger conveyor and this chamber extends on an incline between the conveyors. An opening is provided into the chamber for the introduction of additional materials which mix with the first material by gravity before the comingled materials reach the inlet of the second auger conveyor.