Filtering tobacco smoke

Details Filtering tobacco smoke Filtering tobacco smoke

1974-10-31

1976-12-21

Michell, Robert W.

Tobacco

Tobacco users' appliance

Supports

A24B 1502

Patent

active

039982327

ABSTRACT:
A tobacco smoke filter cartridge comprises essentially a wrapper of an electrically insulating material, a bed of particles of an electrically conductive or semi-conductive material packed into the filter chamber defined by the wrapper, and two spaced electrodes in electrical contact with the bed of particles for passing an electric current therethrough. The cartridge may be mounted in a cigarette or cigar holder or the stem of a pipe with a miniaturized electric supply circuit built into the holder.

REFERENCES:
patent: 3028864 (1962-04-01), Minto
patent: 3087500 (1963-04-01), Jacobson
patent: 3217715 (1965-11-01), Berger et al.
patent: 3251365 (1966-05-01), Keith et al.
patent: 3757803 (1973-09-01), Chiang

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