Indicator-nut threaded coupling with load-indicating device adapted to be arranged on anchors, in particular grouted anchors for mining or the like
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United States of America Patent
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Feb 18, 1992
Grant Date -
N/A
app pub date -
Feb 14, 1991
filing date -
Mar 31, 1990
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Abstract
A indicating-nut threaded coupling with load-indicating device (1) adapted to be arranged in particular on grouted anchors for mining or the like and in order to obtain a simple solution which is advantageous in use a free space is formed by at least one groove (4) equipped with a fold bottom (5), the groove being arranged in the outer wall (3) of a bushing (2) which extends spaced from the outer surface of the anchor.
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