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US 12,747,775 B2Granted
Chain
AssigneeTsubakimoto Chain Co.
InventorYuji Fukuike
Life of this patent
Estimating the term…
Abstract
A chain is made of an iron-based material and includes multiple pairs of outer plates and multiple pairs of inner plates. The chain includes a base film that contains zinc and is formed on the surface of the chain, and a coating film that contains lithium silicate and sodium silicate and is formed on the base film. The mass ratio of the mass of the active ingredient of the lithium silicate to the mass of the active ingredient of the sodium silicate is in a range of 0.07 to 2.5.
Claims4
A chain made of an iron-based material, comprising:
- multiple pairs of outer plates and multiple pairs of inner plates, the multiple pairs of outer plates and the multiple pairs of inner plates being connected such that the outer plates and the inner plates are arranged alternately;
- a base film formed on a surface of the chain, the base film containing zinc;
- and
- a coating film formed on the base film, the coating film containing lithium silicate and sodium silicate,
- wherein a mass ratio of a mass of an active ingredient of the lithium silicate to a mass of an active ingredient of the sodium silicate is in a range of 0.07 to 2.5, and
- wherein the coating film does not contain aluminum.
3 more elements
Dependencies are inferred from the claim text.