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.

Date of Patent:
Jan. 23, 2007

Filed:

Mar. 03, 2005
Applicant:

Stan C. Weidmer, Cincinnati, OH (US);

Inventor:

Stan C. Weidmer, Cincinnati, OH (US);

Assignee:

Makino, Inc., Mason, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 27/00 (2006.01); B21D 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus comprises a rotating member having one or more rollers. The one or more rollers have a plurality of protuberances. The rollers may be advanced toward a surface during rotation of the rotating member, such as toward a bore surface. The protuberances are configured to make a pattern of discrete indentations in the surface upon engagement of the protuberances with the surface. The apparatus is particularly suited for creating oil-retention pockets in the surface of an engine cylinder and other uses. The apparatus may be used to create a pattern of oil-retention pockets or other pockets in a cylinder with varying pocket density in a single pass.


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