The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 10, 2000
Filed:
Sep. 16, 1998
Michael Tibbs, Figtree, AU;
John Albert Ziegelaar, Farmborough Heights, AU;
Ishikawajima-Harima Heavy Industries Company Limited, Tokyo, JP;
BHP Steel (JLA) Pty Ltd, Melbourne, AU;
Abstract
Method and apparatus for steering a strip along a desired path. The strip 12 is fed along a guide table 13 by a pair of pinch rolls 50 which are of concave formation so as to grip the strip at two laterally spaced locations at the edges of the strip. A pair of fluid cylinder units 52 are independently operable to vary the pressures applied by the rolls at the two gripping locations to steer the strips. The position of the strip is monitored in the vicinity of the rolls 50 by a strip position sensor 51. Steering of the strip is controlled by a control signal derived from the output of sensor 51. The control signal in the sum of three factors the first of which is a measure of an instantaneous value of the lateral position of the strip, the second of which is a measure of an instantaneous lateral traversing velocity of the strip and the third of which is an integration of instantaneous values of the lateral position of the strip over a preceding time interval.