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:
Jun. 21, 1994
Filed:
Jun. 22, 1993
John P Hoffman, Coopersburg, PA (US);
Alvin M Nestler, Hellertown, PA (US);
Donald J Idstein, Valparaiso, IN (US);
Bethlehem Steel Corporation, Bethlehem, PA (US);
Abstract
A centering tool for coaxially aligning a well block with a discharge bore of a steelmaking vessel, the centering tool comprising a support frame and a cluster of pivotable centering arms. Each centering arm includes a wedge shaped portion having a first edge adapted to engage a drive means, and a second edge having a first surface adapted to engage the wall of a bore extending through the well block, and a second surface adapted to engage the wall of the discharge bore of the steelmaking vessel. The drive means includes an expansion plug for engaging and pivoting centering arms positioned within the bore of the well block.