Tobacco – Tobacco users' appliance – With ash receiver
Patent
1993-01-04
1994-07-05
Doyle, Jennifer
Tobacco
Tobacco users' appliance
With ash receiver
553858, 131231, A24F 1900
Patent
active
053258762
ABSTRACT:
The ash tray includes a device for filtering the nicotine in the cigarette smoke and for changing the cigarette smoke into a harmless gas. The device includes a catalytic exchanger, an ozone generator, a fan, a transformer and a filter enclosed within an enclosure including a base plate and a bowl-shaped cover member.
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patent: 4828165 (1989-05-01), Watai et al.
patent: 4904289 (1990-02-01), Miyakami et al.
patent: 4996995 (1991-03-01), Kojima
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