Tobacco – Tobacco users' appliance – Device used for smoking
Patent
1980-12-05
1982-12-07
Pellegrino, Stephen C.
Tobacco
Tobacco users' appliance
Device used for smoking
131198R, 131220, 131226, 131230, A24F 122
Patent
active
043621694
ABSTRACT:
A smoker's pipe of the dry bowl type is disclosed which has a ceramic inner bowl secured at its lower end to the lower end of an outer plastic bowl in a manner to space the bowls radially apart for the establishment of a cooling air space between the bowls. The pipe has a stem provided with an auxiliary fresh air inlet that is in communication with one end of a horizontal longitudinally extending passageway located in the bottom of the inner bowl below the combustion chamber and in communication therewith. The other end of the passageway is in communication with a cooling chamber to communicate smoke from the inner bowl to a mouthpiece fitted in the outer end of the stem. The mouthpiece has an insert cluster containing a smoke passage tube and a liquid contaminant tube, the latter of which is received within the open end of a liquid absorber mounted on a plug that is frictionally fitted in a bore formed in the front end of the stem below the bowl assembly. A bore having a curved bottom in the mouthpiece cooperates with a slot in the bottom of the smoke passage tube to constrain the smoke to flow over an S-shaped path for enhanced cooling.
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Plastics Design Forum, Nov./Dec. 1977 issue.
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