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:
Sep. 13, 2011
Filed:
Feb. 27, 2009
Yoshiyuki Kuroiwa, Arida, JP;
Akihiro Sakamoto, Chiba, JP;
Yoshiyuki Kuroiwa, Arida, JP;
Akihiro Sakamoto, Chiba, JP;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Abstract
A blasting device for blasting steel pipe inner surface includes a tubular carrier fluid inflow unit connected to one end of a horizontal steel pipe, and a negative pressure suction unit connected to the other end of the steel pipe. A polishing material or a wiping material is injected horizontally into the carrier fluid inflow unit along with a carrier fluid from a hole formed in the edge face of the tubular carrier inflow unit. The device provides improved blast performance as well as the capability to blast the inner surface from beginning portion to an end portion to provide an excellent inner surface texture.