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. 14, 2002
Filed:
May. 13, 1999
Applicant:
Inventors:
Ryoichi Nakayama, Ibaraki-ken, JP;
Shinji Nakano, Osaka-fu, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01C 4/30 ;
U.S. Cl.
CPC ...
H01C 4/30 ;
Abstract
A conductive male thread ( ) has a thrust bearing flank ( ) coated with an insulating paint layer ( ), and a conductive female thread ( ) has a thrust bearing flank ( ) formed with a conductive projection ( ) to break through the paint layer ( ) and bite in that flank ( ).