Tobacco smoke filter
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United States of America Patent
Stats
-
Apr 22, 1986
Grant Date -
N/A
app pub date -
Jul 7, 1983
filing date -
Jul 7, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tobacco smoke filter includes a corrugated tape-like wrapping which, together with an outer perforated or otherwise air-permeable paper, defines a set of longitudinal grooves. Each of the grooves includes a blocking member, so as to inhibit direct smoke flow through the grooves and promote a ventilation effect. The blocking members in each groove are longitudinally staggered from one groove to the next to simplify the production of the device.
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