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:
May. 16, 1989
Filed:
Apr. 22, 1988
Paul Dambre, Kemmel, BE;
N.B. Bekaert S.A., Zwevegem, BE;
Abstract
A steel cord comprises a central bundle of three twisted steel filaments (1) with a diameter d.sub.1 and nine steel filaments twisted around said central bundle with the same twist pitch and twist direction as the central bundle. Three filaments (2) of said nine steel filaments have a diameter d.sub.2 and contact two adjacent steel filaments of the central bundle. Six steel filaments (3) of said nine steel filaments have a diameter d.sub.3 and contact both one steel filament of the central bundle and one steel filament of the three filaments with diameter d.sub.2. The ratio d.sub.2 /d.sub.1 is greater than 1.05 and smaller than 1.16. The raio d.sub.3 /d.sub.1 is greater than-0.205=0.814.times.d.sub.2 /d.sub.1 and smaller than-0.105+0.814=d.sub.2 /d.sub.1.