Flexible tube production apparatus
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Mar 25, 2025
Grant Date -
Aug 10, 2023
app pub date -
Jan 30, 2023
filing date -
Jan 30, 2023
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A die has an inner die that has a straight portion of circular columnar outer shape and a convergent tapered portion provided closer to an extrusion port side than the straight portion and an outer die that houses the inner die. A first supply passage connecting a first valve and a flow passage, a second supply passage connecting a second valve and the flow passage, and a third supply passage connecting a third valve and the flow passage are provided inside the die. Downstream side end portions of the first supply passage and the second supply passage are connected to a portion of the flow passage formed between the straight portion and the outer die and a downstream side end portion of the third supply passage is connected to a portion of the flow passage formed between the tapered portion and the outer die.
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