Mortar mixing machine with two conveying and mixing tubes of opposite conveying direction
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United States of America Patent
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May 19, 1998
Grant Date -
N/A
app pub date -
Sep 5, 1996
filing date -
Sep 5, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A mortar mixing machine has a frame and a hopper supported by the frame for containing dry mortar. The hopper has an outlet with an outlet opening. A first conveying and mixing tube, connected in a working position thereof to the outlet so as to extend horizontally, has at least one water inlet and is designed for mixing the dry mortar fed into the conveying and mixing tube from the hopper with water introduced via the at least one water inlet to prepare mixed moist mortar. The first conveying and mixing tube has a removal opening for the mixed moist mortar remote from the outlet. A second conveying and mixing tube is connected to the frame for directly receiving in a working position thereof the mixed moist mortar. The second conveying and mixing tube conveys the mixed moist mortar in a direction opposite to the conveying direction of the first conveying and mixing tube. The second conveying and mixing tube has a drive and is slidably retractable into a rest position together with the drive.
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