Roller leveller
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 20, 2001
Grant Date -
N/A
app pub date -
Mar 15, 2000
filing date -
Jul 17, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A roller leveller has an upper roller assembly 1 made of a plurality of taper rollers 7 each having a small diameter end with a collar 14 and a large diameter end, with the large diameter ends being set on a same side, and a lower assembly 2 made of a plurality of taper rollers 8 each having a small diameter end with a collar 15 and a large diameter end, with the large diameter ends being disposed on opposite sides of the large diameter ends of the taper rollers 7. The center axes of the upper and lower taper rollers 7 and 8 are inclined by a half-apex angle of the taper roller relative to a passing plane of a plate 50, and the upper and lower taper rollers are disposed in a zigzag way. A plate or coil plate 50 is passed between the upper and lower taper rollers to repetitively bend it and remove defective form.
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