Transit concrete mixer
OwnerGerhard Hudelmaierinventor
Life of this patent
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Abstract
A transit concrete mixer has a fill and discharge opening at the apex end of a conically tapered mixing drum. The drum is mounted for rotation on its axis at an angle relative to the horizontal which places the drum on an upward slant from its bottom to the fill and discharge opening. Internal helical blading of the drum moves the concrete into and out of the drum upon its rotation in opposite directions. A rotary mixing tool is mounted in the wide end of the drum on the axis of the latter in cooperative relation to the helical blading.
Claims10
A transit concrete mixer wherein a mixing drum tapers conically toward a fill and discharge opening and is mounted on a vehicle frame for rotation on an axis which extends in the direction from the drum bottom toward said opening on an upward slant relative to the horizontal by means of a stub axle secured to said drum bottom and projecting therefrom into a supporting bearing;
- wherein said drum is provided at its inner wall surface with axial concrete conveying elements and encloses a coaxial supplemental mixing tool which extends in the direction of the drum axis from said drum bottom over a range of not more than about one-half of the total drum length, said mixing tool being mounted on an overhung shaft associated with said drum bottom;
- and wherein drive means exteriorly of said drum are operatively connected to said mixing drum and to said overhung shaft.
Dependencies are inferred from the claim text.