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:
Mar. 12, 1985
Filed:
Nov. 17, 1983
Motoyuki Koga, Tokyo, JP;
Hakko Co., Ltd., Tokyo, JP;
Abstract
A pig for repairing interior portions of a pipeline with resin. The pig has a cylindrical portion diameter of which is slightly smaller than the inner diameter of the pipeline so as to allow the moving of the pig in the pipeline. A pair of introduction portions are formed by slanting rear portions of the cylindrical portion. A pair of discharge grooves are axially formed in the cylindrical portion. The discharge grooves are overlapped with the introduction portions interposing periphery portions of the cylindrical portion and opened to the front of the cylindrical portion. Thus the resin in the rear side of the pig can be discharged to the front side passing through the periphery portions and discharge grooves.