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:
Dec. 08, 2015
Filed:
Aug. 29, 2011
Masayoshi Sasaki, Wakayama, JP;
Katsutoshi Sumitani, Wakayama, JP;
Takumi Nakamura, Wakayama, JP;
Jun Masubuchi, Wakayama, JP;
Masayoshi Sasaki, Wakayama, JP;
Katsutoshi Sumitani, Wakayama, JP;
Takumi Nakamura, Wakayama, JP;
Jun Masubuchi, Wakayama, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
VALLOUREC MANNESMANN OIL & GAS FRANCE, Aulnoye-Aymeries, FR;
Abstract
A coating apparatus for forming a thin UV curable resin coating on threaded end portions of a steel pipe comprises a spraying unit having at least two nozzles adapted to spray the resin coating composition by pneumatic atomization toward the threaded end portion of the steel pipe, a resin supply system for supplying the resin coating composition to each nozzle, and a first nozzle support means which supports each nozzle for movement in the axial direction of the steel pipe and in the vertical direction. The two nozzles are disposed at different positions at least in the axial direction of the steel pipe at angles which are sloped such that the sprayed streams from the nozzles approach each other. The resin supply system has a regulator for maintaining the spraying air pressure of the resin coating composition in each nozzle of the spraying unit at a predetermined respective value.