BUBBLE TUBE AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To propose an efficiently manufactured bubble tube of good quality, and its manufacturing method. SOLUTION: This bubble tube has an index on its inner wall surface and comprises a tubular body for thereinto putting a liquid together with an air bubble. The tubular body is doubl...

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Bibliographic Details
Main Authors TAKAMURA TOSHITAKA, GOTO AKIO
Format Patent
LanguageEnglish
Published 28.09.2006
Subjects
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Summary:PROBLEM TO BE SOLVED: To propose an efficiently manufactured bubble tube of good quality, and its manufacturing method. SOLUTION: This bubble tube has an index on its inner wall surface and comprises a tubular body for thereinto putting a liquid together with an air bubble. The tubular body is double-molded over an outer surface of a previously molded sleeve. The index is formed by performing cutting work for cutting the sleeve out of the tubular body. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20050072502