Method for forming a sloped bottom tank

Details Method for forming a sloped bottom tank Method for forming a sloped bottom tank

1994-03-18

1996-04-09

Crane, Daniel C.

Metal deforming

With cutting

By shearing tool-couple

723794, 723892, 220 412, 220601, B21D 5118

Patent

active

055050700

ABSTRACT:
An improved tank bottom configuration formed from a flat metal plate of square or rectangular shape is disclosed. The plate is sheared to provide two adjacent sides which are tapered along their lengths and a notch is cut in each corner portion. By the use of stop and die members, the plate member is deformed to provide a bottom wall portion which slopes downwardly toward one corner and upwardly extending side wall portions which extend around the periphery of the bottom wall portion. A drain opening and a crease are formed in the bottom wall portion, with the crease being aligned with and spaced from the drain opening.

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