Title:
METHOD AND DEVICE FOR WORK INSIDE PIPES
Document Type and Number:
WIPO Patent Application WO/2011/018955
Kind Code:
A2
Abstract:
Disclosed are a "method and device for work inside pipes" for very-high-powered travel inside pipes. The disclosed device is provided with an ring-shaped pressure-boundary seal, the free edges of which contact the inside walls of a pipe. The pressure-boundary seal divides the space inside the pipe into two spaces, space A and space B. The end of space A near the pressure-boundary seal is connected to a suction pump via a hose. The end of space A near the pressure-boundary seal is also connected to space B via a vacuum-breaking valve mechanism that adjusts the negative pressure inside space A. The other end of space A, away from the pressure-boundary seal, is closed. The hose is disposed inside space B.
Inventors:
URAKAMI Fukashi (608 Maruyoshi Bldg, konandai Konan-k, Yokohama-shi Kanagawa 54, 〒2340054, JP)
Application Number:
JP2010/063051
Publication Date:
February 17, 2011
Filing Date:
August 03, 2010
Export Citation:
Assignee:
URAKAMI LLC (4-17-24, Konandai Konan-ku, Yokohama-sh, Kanagawa 54, 〒2340054, JP)
ウラカミ合同会社 (〒54 神奈川県横浜市港南区港南台４丁目１７番２４号 Kanagawa, 〒2340054, JP)
ウラカミ合同会社 (〒54 神奈川県横浜市港南区港南台４丁目１７番２４号 Kanagawa, 〒2340054, JP)
International Classes:
B08B9/049; B08B9/02; B25J5/00; E02B1/00; F24F13/02
Download PDF: