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:
Jan. 02, 1979
Filed:
Aug. 16, 1977
Joseph A Grohowski, Bethlehem, PA (US);
Tom L Galanis, Bethlehem, PA (US);
Bethlehem Steel Corporation, Bethlehem, PA (US);
Abstract
Computerized coiling control in which both pouring reel location and reel speed wobble pattern are preselected, whereby a moving product, such as bar, rod or wire, is continuously poured into a reel to form the densest product coils under a variety of coiling situations. A coiler operator presets independently adjustable parameters including coil O.D. and I.D., reel speed wobble rate, and a reel speed wobble pattern selected from computer storage and having either a spiral, spiral with dwell, or triangular waveform. The computer is programmed to assimilate operator input data, and calculate reel motor speed reference and current reference signals for use by a reel motor controller which will form the densest coils having predetermined flat spirals stacked axially in alternate reverse-convolute layers. Reel speed is modified to compensate coiler operation for effects due to variations in bar grade, temperature and/or shape.