Articulated tubular conduit arm for sucking gaseous fluids
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United States of America Patent
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-
Sep 10, 1985
Grant Date -
N/A
app pub date -
Feb 8, 1982
filing date -
Feb 10, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This suction arm for gaseous fluids comprises a tubular articulated conduit consisting of at least one flexible sleeve (5) disposed between two rigid tubes (8). These tubes (8) are interconnected at either end of the flexible intermediate sleeve (5) by mechanical holding means (9) comprising each at least one pair of first and second members (10a, 10b) pivotally interconnected centrally of the flexible sleeve and rigidly assembled in side by side relationship by distance-pieces (15) under the control of a spiral return spring (13) and detent-positioning means (16, 17, 18), whereby the two rigid tubes (8, 8) are constantly urged to their relative angular position matching that of the ends of the intermediate flexible sleeve (5).
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