Patent ID: 6871658
Filing Date: 2005-03-29
Classification: B08B

Abstract:
1. A washout system for cleaning concrete and other materials from the inside surface of a concrete mixer drum with a fluid, the concrete mixer drum mounted to a concrete truck or the like, the fluid stored in a predetermined fluid source with the fluid source activatable to release fluid, the washout system comprises: a telescoping pipe assembly extendible into the mixer drum, the telescoping pipe assembly having a first end and a second end, the first end fluidly connected to the fluid source; a spray bar fluidly connected to the second end of the telescoping pipe assembly; and a plurality of nozzles positioned circumferentially about and longitudinally along the spray bar; wherein upon introducing fluid into the telescoping pipe assembly, the second end of the telescoping pipe assembly automatically extends into the mixer drum; wherein the telescoping pipe assembly has an automatic return system such that the spray bar automatically retracts into the telescoping pipe upon deactivation of the fluid source and the telescoping pipe assembly retracting from within the mixer drum.