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:
Nov. 20, 2001
Filed:
Oct. 11, 2000
Michael A. Kestner, Spring Lake, MI (US);
Thomas J. Smith, Muskegon, MI (US);
Anthony Angilella, Richmond, ID (US);
Dana Corporation, Toledo, OH (US);
Abstract
An inventive cylinder liner of the prevent invention includes a dual phase graphite morphology. An outer diameter of the cylinder liner is comprised of ductile (nodular) and vermicular iron while an inner diameter of the cylinder liner is comprised of predominantly gray iron. A transition region of predominantly vermicular iron is preferably disposed between the inner diameter and the outer diameter. The inventive cylinder is preferably made using a centrifugal casting process, which provides a transition in the cylinder wall between the ductile and verimcular iron at the outer diameter to the predominantly gray iron at the inner diameter.