Patent ID: 7125239
Filing Date: 2006-10-24
Classification: B28B

Abstract:
1. In a non-vibratory counter rotating packerhead concrete pipe making machine a packerhead, said packerhead having a rollerhead and a longbottom, said rollerhead having a plurality of rollers mounted on a roller mounting member, a longbottom located beneath the rollerhead, said longbottom having a trowel means mounted on a longbottom mounting member, drive means for said packerhead, said drive means including a first drive assembly extending through the roller mounting member into driving engagement with the longbottom for rotating the longbottom in a first direction of rotation, a second drive assembly located above the longbottom in driving engagement with the rollerhead for rotating the rollerhead in a second direction of rotation or in the same direction of rotation as the longbottom but at a dissimilar speed, and fastening means for securing the longbottom to said first drive assembly whereby upon removal of said fastening means the rollerhead and the longbottom can be assembled to, and disassembled from, the drive means as a unit.