Smoking filter
OwnerWilson Ira Lockettinventor
Life of this patent
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Abstract
A filter for passing tobacco smoke or other gaseous material comprising two layers of material having a plurality of circuitous or serpentine passageways forming pathways through which tobacco smoke travels a distance greater than the length of the filter itself. The filter is constructed by coating the layers with an adhesive except in the areas forming the passageways so that when the two layers are fastened together, there are unobstructed paths through the layers of material. The combined layers are rolled into a cylindrical construct. In an alternative embodiment, one or more cavities are formed along the passageways.
Claims1
A device to be placed between tobacco and a smoker for filtering tobacco smoke or other gaseous material, comprising in combination:
- a first layer of material coated with an adhesive except in a plurality of areas describing passageways of several circuitous paths each having a length greater than the width of said material from one edge of said width to an opposite edge;
- and
- a second layer of material having similar passageways affixed to the first layer, said second sheet having described passageways being a mirror image of the passageways of the first layer so as to align to form a plurality of continuous circuitous passages through which the tobacco smoke travels from one end of the material to the other;
- wherein said affixed layers are rolled into a cylindrical shape and wherein said plurality of passageways include at least one cavity larger than the size of the passageways for permitting tobacco smoke passing therethrough to expand whereby said expansion improves condensation and cooling of tobacco smoke.
Dependencies are inferred from the claim text.