Vehicle emission sampling probe apparatus
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United States of America Patent
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May 25, 1999
Grant Date -
N/A
app pub date -
May 5, 1998
filing date -
May 5, 1998
priority date (Note) -
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Abstract
A vehicle exhaust gas collection probe assembly for the collection of two independent exhaust gas samples from a tailpipe system of a vehicle exhaust system comprises a first collector for collecting an undiluted exhaust gas sample from within the exhaust system and second collection means for collecting the entirety of exhaust gas exiting from an end of the tailpipe system. The second collection means comprises a conical collector having a first open end of a diameter greater than that of the tailpipe system positioned adjacent the end of the tailpipe system and a second end of small diameter coupled to a collection conduit. The first collector comprises a hollow probe having a flexible portion for insertion into the tailpipe system coupled to a conduit positioned along a main longitudinal axis of the conical collector, extending into the conical collector, and being supported by the conical collector.
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