Change-a-bowl pipe

Details Change-a-bowl pipe Change-a-bowl pipe

1979-10-22

1981-09-22

Pellegrino, Stephen C.

Tobacco

Tobacco users' appliance

Device used for smoking

131225, A24F 122

Patent

active

042904374

ABSTRACT:
The present invention relates to a smoking pipe having a retroverted-flow filter around a bit member and having a bowl placed within a bowl receptacle for enabling quick and easy changing of the smoking bowl while additionally creating an air cooling space between the bowl and bowl receptacle. More specifically, the present invention represents an improvement on the bit member and bowl structure of U.S. Pat. No. 3,780,745.

REFERENCES:
patent: 2269541 (1942-01-01), MacDonald
patent: 2373592 (1945-04-01), Orrington
patent: 2534476 (1950-12-01), Plesh
patent: 3170468 (1965-02-01), Smith
patent: 3292639 (1966-12-01), Zarikta
patent: 3397703 (1960-08-01), Otto
patent: 3502086 (1970-03-01), Smith et al.
patent: 3780745 (1973-12-01), Smith et al.

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