Testing of cigarettes
AssigneeMolins Limited
InventorsEryk Stefan Doerman, Ivan Yehudi Hirsh
Life of this patent
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Abstract
A cigarette testing device comprises means to apply positive or negative pressure to one end of each cigarette; means defining a chamber around at least part of the cigarette, with seals around the cigarette to restrict communication between the interior of the chamber and atmosphere; and means to detect the pressure in the chamber during testing; and including means defining a predetermined deliberate leakage path between the chamber and atmosphere.
Claims7
A cigarette testing device comprising means to apply pressure difference from atmospheric pressure to one end of each cigarette;
- means defining a chamber around at least part of the cigarette, with seals around the cigarette to restrict communication between the interior of the chamber and atmosphere;
- and means to detect the pressure in the chamber during testing;
- and including means defining a predetermined deliberate leakage path between the chamber and atmosphere.
A cigarette testing device comprising a drum for carrying the cigarettes during testing, and an annular member which surrounds at least part of the drum and defines with the drum an annular space around each cigarette at a testing station, positive or negative pressure being supplied to the annular space or sensed in the annular space to detect the presence of an excessively leaking cigarette wrapping.
Dependencies are inferred from the claim text.