B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
259/28
B01F 9/06 (2006.01) B28C 5/42 (2006.01) B60P 3/16 (2006.01)
Patent
CA 1071186
ABSTRACT OF THE DISCLOSURE In a rotary concrete mixing drum mounted for ro- tation about a rotary axis, said mixing drum having a mixing chamber formed therein, said mixing chamber having a head end and a discharge end arranged opposite one another, a mixing blade disposed within said mixing chamber, said mixing blade having a mixing face directed toward said head end to establish a fluid flow in a direction toward said head end of said chamber in response to rotation of said blades in a mixing direction about said rotary axis and a discharge face directed toward the discharge end of said mixing drum to establish a fluid flow in a direction toward said discharge end of said chamber in response to rotation in said discharge direction, the improve- ment of a plurality of mixing passages opening through said mixing blade between said mixing face and said discharge face whereby wet concrete will pass through said mixing passages from said mixing face to said discharge face in response to rotation of said drum in said mixing direction and thereby establish turbulence in the mixing chamber, a deflector blade mounted on said discharge face of said mixing bblade in advance of each mixing passage in the discharge direction, said deflector blade being adapted to deflect the flow of wet concrete away from its associated mixing passage to permit discharge of wet concrete from said discharge end in response to rotation in said discharge direction.
315003
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