Patent · US Active

Ratchet with coated layer and the method for making the same

US8646363B2 · kind B2 · utility

1Cited by

3References

14Claims

0Family size

Inventors

Cheng-Pu Yang · Shanghai, CN
Sen Hou · 流花街道, CN

Key dates

Filing date	Nov 21, 2011
Grant date	Feb 11, 2014
Priority date	—
Expiry date	Aug 20, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25D7/04
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A ratchet includes multiple ratchet teeth defined in the outer periphery thereof and a coated layer is coated along the outer periphery of the ratchet. A laser device is used to generate a laser beam to remove a part of the coated layer to defined openings in the coated layer and the ratchet teeth protrude from the openings.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.