초록

A device for enclosing a cigarette when being smoked, wherein a series of check valves are provided in conjunction with a smoke filter for permitting a smoker to draw smoke into the lungs and discharge it without affecting significantly a surrounding atmosphere.

대표청구항 ▼

A smoking device comprising a face piece formed and qasketed in a manner to make an airtight seal between the atmosphere and the nose and mouth of the user, the face piece fitted by means of standardized circular matching openings to an intermediate section, a partition in the intermediate section,

A smoking device comprising a face piece formed and qasketed in a manner to make an airtight seal between the atmosphere and the nose and mouth of the user, the face piece fitted by means of standardized circular matching openings to an intermediate section, a partition in the intermediate section, the intermediate section containing an inwardly directed first check valve on the face piece side of the intermediate section for the entrance of air inhaled through the nose of the user, said partition containing a second check valve directing air exhaled from the user into a combustion chamber fitted by matching circular openings to the intermediate section on a side thereof opposite from said face piece, said combustion chamber adapted to contain burning tobacco or the like, an outwardly directed third check valve in the combustion chamber side of said partition, a cartridge of smoke and odor absorbing material positioned at the discharge side of the outwardly directed third check valve to filter all exhaled air, smoke, and other gases from combustion of tobacco or the like before entering the surrounding atmosphere, wherein said combustion chamber includes means for holding burning tobacco or the like in a closed chamber so as to prevent any of the products of combustion from entering the surrounding atmosphere, and said smoking device additionally comprises a fourth check valve in the partition of the intermediate section, said fourth check valve connected to said holder of the burning material and directing smoke and gases from the combustion chamber to a small plenum, a mouth piece within said face piece and connected to the small plenum, whereby the plenum may be connected to the mouth of the user, a fifth check valve in said partition communicating between the mouth piece and the combustion chamber for carrying gases through the partition from the mouth piece whereby the user may exhale through the mouth piece into the combustion chamber and out said third check valve.