DRILL-TAP TO BE FREELY REQUIRED FOR WATER LEVEL
PROBLEM TO BE SOLVED: To provide a drill-tap to be freely required for the water level capable of freely setting the scope of an upper limit and a lower limit of the water level in a water tank and economically reducing installation time by eliminating another electric installation or the like. SOLU...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a drill-tap to be freely required for the water level capable of freely setting the scope of an upper limit and a lower limit of the water level in a water tank and economically reducing installation time by eliminating another electric installation or the like. SOLUTION: The conventional type drill-tap floating ball (1), a connecting bar (2) and a drill-tap body (3) are inserted in a pipe (4) to set, and a pipe monolithic type drill-tap is formed. |
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