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US 10,588,344 B2Granted
Low emissions electronic smoking device and emissions filtering device
AssigneePhilter Labs, Inc.
InventorsYuval Shenkal, John Grimm
Life of this patent
Estimating the term…
Abstract
The present disclosure provides, in one embodiment, a filter device comprising a mouthpiece, a filter assembly in communication with the mouthpiece for filtering air exhaled into the mouthpiece, and an outlet check valve which permits air to be exhaled through the mouthpiece into the filter assembly, and substantially prohibits air from being inhaled from the filter assembly into the mouthpiece.
Claims14
A filter device comprising:
- a mouthpiece;
- a filter assembly in communication with the mouthpiece for filtering air exhaled into the mouthpiece, the filter assembly having a venturi core comprising:
- a funneled inlet portion having a wide end directed toward the mouthpiece to receive emissions blown into the mouthpiece and a narrow end directed away from the mouthpiece, and
- a stem portion extending from the narrow end of the funneled inlet portion;
- and
- an outlet check valve which permits air to be exhaled through the mouthpiece into the filter assembly and substantially prohibits air from being inhaled from the filter assembly into the mouthpiece.
3 more elements
Dependencies are inferred from the claim text.