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:
Jul. 27, 2021
Filed:
Apr. 11, 2018
Applicant:
NV Bekaert SA, Zwevegem, BE;
Inventor:
Aijun Zhang, Jiangyin, CN;
Assignee:
NV BEKAERT SA, Zwevegem, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21F 7/00 (2006.01); B60C 9/00 (2006.01); B21F 1/02 (2006.01); D07B 1/06 (2006.01); B60C 9/18 (2006.01); B60C 9/20 (2006.01);
U.S. Cl.
CPC ...
B60C 9/0007 (2013.01); B21F 1/023 (2013.01); B21F 7/00 (2013.01); B60C 9/0064 (2013.01); B60C 9/1821 (2013.01); D07B 1/0606 (2013.01); B60C 2009/0014 (2013.01); B60C 2009/2074 (2013.01); B60C 2009/2096 (2013.01); D07B 2207/203 (2013.01); D07B 2207/205 (2013.01); D07B 2207/4072 (2013.01); D07B 2401/406 (2013.01); D07B 2501/2046 (2013.01);
Abstract
A method for manufacturing a straight steel monofilament for the reinforcement of belt ply of a pneumatic tyre, where the arc-height of the straight steel monofilament is less than 30 mm. The steel monofilament is plastically deformed by a twisting along the axis of the steel monofilament on a double-twist apparatus. The plastic twist deformation eliminates the surface stress difference on the steel monofilament and provides a strainght steel monofilament for belt ply reinforcement. This provides a simple solution with existing apparatus to manufacture straight steel monofilament suitable for tire reinforcement with high speed for mass production.