Spacer for positioning a rehabilitating pipe
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United States of America Patent
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Aug 29, 2017
Issued Date -
N/A
app pub date -
Feb 9, 2016
filing date -
Feb 12, 2015
priority date (Note) -
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Abstract
A spacer is inserted into a space between an existing pipe and a rehabilitating pipe to adjust a position of the rehabilitating pipe with respect to the existing pipe. The spacer has an elongated shape with both end portions in a longitudinal direction thereof cut off at an oblique angle and has a transverse width increasing gradually from an upper surface portion to a bottom surface portion. A space is formed in the bottom surface portion to correspond to a shape of the upper surface portion, thereby allowing a number of the spacers to be stacked on one another in a thickness direction thereof. The upper surface portion has a flat-plate shape with a flat rectangular surface region.
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