Patent ID: 6609718
Filing Date: 2003-08-26
Classification: E03F,E04G,F16L

Abstract:
A cast for a wall comprising a seal of a concrete container for a septic system comprising:a first form wall and a second form wall spaced from said first form wall for forming a concrete wall of the container, a first one piece molded item comprising; (a) a first tubular element comprising an axis, a first open end having a first diameter, a second end having a second diameter smaller than the first diameter, a first annular wall sealing said second end closed, weakened annular lines on said first annular wall for tearing away an annular portion of said first annular wall for sealingly receiving pipe through said first tubular element, and (b) a second tubular element comprising a radially extending anchor, having a third end, and a fourth end extending in a first axial direction from said anchor to the first end of said first tubular element integrally molded with the first end of said first tubular element, said first tubular element extending into said second tubular element in a second direction axially opposite to the first direction, means mounted on said first form wall extending from said first form wall for supporting said first tubular element between the first and second form walls, extending axially into said first tubular element in radial contact with an inner surface of said first tubular element, a second one piece molded item comprising; (a) a third tubular element having a fifth end contacting said second form wall, and a sixth end slidably mounted in said second tubular element extending between said first tubular element and said second tubular element, and (b) a plurality of arms, integrally molded with said third tubular element, spaced from one another annularly around the axis, extending radially from said third tubular element, each arm comprising means for fastening that is radially spaced from said fifth end and contacting said second wall coplanar with said fifth end.