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:
Aug. 14, 2012
Filed:
Mar. 27, 2008
Auxiliary tool for filling pipe with fluid, and fluid injection method for injecting fluid into pipe
Applicants:
Takao Kamiyama, Hiratsuka, JP;
Guochun Xu, Hiratsuka, JP;
Takashi Ookubo, Hiratsuka, JP;
Seiya Chiba, Hiratsuka, JP;
Inventors:
Takao Kamiyama, Hiratsuka, JP;
Guochun Xu, Hiratsuka, JP;
Takashi Ookubo, Hiratsuka, JP;
Seiya Chiba, Hiratsuka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 55/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
An auxiliary tool comprises a body formed of a core material and an elastic cloth covering that covers the surface of the core material. The body is configured for insertion into a pipe ahead of a fluid used to fill the pipe so that during filling of the pipe the flow of the fluid advances the body through the pipe to force out and discharge from the pipe air existing ahead of the body while the body is advanced inside of the pipe.