IDiyas

For the Inventor, By the Inventor

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.:

US 9409257 B1

PDFFull Text
Date of Patent:
Aug. 09, 2016

Filed:

Nov. 16, 2015

Wire for i-shape oil rings and producing method of the same

Applicant:

Hitachi Metals, Ltd., Tokyo, JP;

Inventors:

Masanori Ochiai, Kumagaya, JP;

Makoto Sasaki, Kumagaya, JP;

Tomoyuki Satoh, Yasugi, JP;

Assignee:

HITACHI METALS, LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

David Bryant

Assistant Examiner:

Lawrence Averick

Int. Cl.
CPC ...
B23K 26/384 (2014.01); B23K 26/00 (2014.01); B23K 26/14 (2014.01); B23K 26/16 (2006.01); F02F 5/00 (2006.01); F16J 13/12 (2006.01); B23K 103/04 (2006.01); F16F 5/00 (2006.01);
U.S. Cl.
CPC ...
B23K 26/384 (2015.10); B23K 26/0072 (2013.01); B23K 26/0081 (2013.01); B23K 26/14 (2013.01); B23K 26/16 (2013.01); F02F 5/00 (2013.01); F16J 13/12 (2013.01); B23K 2201/10 (2013.01); B23K 2203/04 (2013.01);
Abstract

Provided is a wire rod for an I-type oil ring, which includes right and left rail portions and a web portion connecting the rail portions, which has an oil hole or a molten through hole formed in the web portion, and which has a circumscribing circle diameter of 10 mm or less in its transverse contour. The molten through hole has such a remolten portion formed on its exit side as encloses the exit of the molten through hole. The remolten portion exceeds such a molten portion in the transverse section along the center of the molten through hole as is formed in the molten through hole, and is formed to have 200 μm or less from the outer circumference of the molten through hole and 100 μm or less in the depth direction of the molten through hole.

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