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 6394190 B1

PDF
Full Text
Expired
Date of Patent:
May. 28, 2002

Filed:

Mar. 02, 2001
Applicant:
Inventor:

Johan Lindén, Gävle, SE;

Assignee:

Sandvik AB, Sandviken, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 4/516 ; F16B 7/18 ;
U.S. Cl.
CPC ...
B23B 4/516 ; F16B 7/18 ;
Abstract

A percussive drilling component includes a cylindrical male screw thread formed of a steel material. The thread includes thread crests and thread roots interconnected by thread flanks. To protect the thread against corrosion, the thread is coated with a material having a lower electrode potential than the steel material. The coating is situated at least in regions located radially inwardly of the thread flanks. The male screw thread can be attached to a female screw thread of another percussive drilling component, the female screw thread also being coated with the material.


Find Patent Forward Citations

Lindén, Johan. (2002). Corrosion-resistant thread joint for percussion drill element and method of achieving such resistance (U.S. Patent No. 6394190). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6394190

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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