Pivoting tube brush

A pivoting brush assembly system for cleaning of a tube disposed along an axis, comprising:

• an elongate forcing element;
• a brush head defining an elongate block comprising (i) a first end defining a center recess coupled to an end of the elongate forcing element and (ii) a second end comprising a plurality of spaced arms extending along the axis and defining there between a socket;
• and
• a cleaning brush subassembly coupled to the brush head, the cleaning brush subassembly, comprising:
• a brush post disposed within the socket and pivotally coupled to the plurality of spaced arms via a pivot pin;
• and
• a cleaning brush coupled to the brush post, the cleaning brush comprising an annular body defining a central hole and a plurality of cleaning strips extending radially outward from the annular body;
• and
• a fastener extending through the central hole of the annular body of the cleaning brush and engaging with the brush post,
• wherein the plurality of cleaning strips are adapted to be engaged with an inside surface of the tube and (i) upon a forward stroke into the tube cause the cleaning brush subassembly to orient to a first position wherein the center of the annular body and the fastener are oriented radially within the tube and (ii) upon a reverse stroke cause the cleaning brush subassembly to orient to a second position wherein the center of the annular body and the fastener are oriented axially within the tube and radial extents of the plurality of cleaning strips are engaged with the inside surface of the tube.