Metal deforming – With cutting – By shearing tool-couple
Patent
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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Horine Vinton F.
Rude Arthur D.
Crane Daniel C.
Custom Metalcraft Inc.
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