Retaining and releasing device for exhaust-gas extraction nozzle
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United States of America Patent
Stats
-
Mar 14, 1995
Grant Date -
N/A
app pub date -
Jul 7, 1993
filing date -
Jul 13, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A retaining and releasing device for an exhaust-gas extraction nozzle, which nozzle (5) is adapted for extracting exhaust gases from upwardly directed exhaust pipes (3 ) on vehicles, e.g. fire-fighting vehicles, when these vehicles are started and driven in premises for the vehicles, e.g. a fire station. To permit safe retention of the nozzle (5) at the exhaust pipe (3) with sufficient forces without the forces counteracting release of the exhaust pipe (3) from the nozzle (5), the retaining and releasing device includes at least one retaining and releasing arm (29) which is movable between a retaining position (D) wherein it permits retention of the exhaust-gas extraction nozzle (5) at the exhaust pipe (3) and a releasing position wherein it permits release of the exhaust pipe (3) from the nozzle (5), whereby a retaining device (43) is provided to retain the retaining and releasing arm (29) in its retaining position (D) and to release the arm (29) such that the arm can move to its releasing position when the exhaust-gas extraction nozzle (5) reaches a certain position in the premises (1).
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