| CPC F16L 43/006 (2013.01) [B21D 39/046 (2013.01); B21D 39/048 (2013.01); F16L 13/142 (2013.01); F16L 39/005 (2013.01); F16L 39/06 (2013.01)] | 19 Claims |

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1. An unmachined cast body for a pipe fitting, the cast body comprising:
a first body end and a second body end disposed opposite from the first body end, the cast body defining an axis extending from the first body end to the second body end, the cast body defining a midpoint between the first body end and the second body end, a centerline of the cast body defined at the midpoint perpendicular to the axis, a first distance from the centerline to the first body end being equal to a second distance from the centerline to the second body end,
an inner body surface defining a fitting bore extending through the cast body from the first body end to the second body end, the fitting bore defining a taper on the inner body surface; and
an outer body surface spaced from the inner body surface, the outer body surface defining a first frustoconical shape and a second frustoconical shape, the first frustoconical shape intersecting the second frustoconical shape at the centerline, the outer body surface defining a groove between the centerline and the first body end, the first frustoconical shape extending between the centerline and the groove, the first frustoconical shape tapering inwards towards the axis as the first frustoconical shape extends from the centerline towards the groove, the cast body comprising a neck extending from the groove to the first body end, a portion of the outer body surface defined by the neck defining a first diameter that is smaller than a second diameter of the outer body surface of the first frustoconical shape, the second frustoconical shape defined between the centerline and the second body end, the second frustoconical shape tapering inwards towards the axis as the second frustoconical shape extends towards the second body end,
wherein the inner body surface tapers inward toward the axis from the first body end.
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