Title:
SELF-SEALING FLEXIBLE SEAL FOR SEALING INNER SURFACE OF TUBE AND MOVABLE BODY FOR INSIDE TUBE EQUIPPED WITH SAID SEAL
Document Type and Number:
WIPO Patent Application WO/2011/074502
Kind Code:
A3
Abstract:
Disclosed is a self-sealing flexible seal which can flexibly adhere to the inner wall of a tube even if the internal diameter of the tube changes, and a movable body for inside tubes which is equipped with the self-sealing flexible seal. The self-sealing flexible seal for sealing the inner surface of a tube is configured from seal member (A) and seal member (B), which are both shaped like hollow bowls, formed from a flexible material, have annular openings at both extremes, and form the same shape as each other; seal member (A) and seal member (B) are disposed attached and on top of each other so that seal member (A) is externally and seal member (B) is internally attached; seal member (A) and seal member (B) are both equipped with N amount of similarly shaped slit sections which extend from near one opening section to near the other opening section; and with respect to the phase angles formed by seal member (A) and seal member (B), seal member (A) and seal member (B) are positioned out of phase about the central axis shared by seal member (A) and seal member (B), in a plane perpendicular to said central axis.
Inventors:
URAKAMI FUKASHI (JP)
Application Number:
PCT/JP2010/072294
Publication Date:
September 15, 2011
Filing Date:
December 12, 2010
Export Citation:
Assignee:
URAKAMI LLC (JP)
URAGAMI FUKASHI (JP)
URAGAMI FUKASHI (JP)
International Classes:
B08B9/053; B08B9/04
Foreign References:
| JP2006314926A | 2006-11-24 | |||
| JP2004293670A | 2004-10-21 | |||
| JPS56176093U | 1981-12-25 |
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Claims: