US PATENT SUBCLASS 493 / 47
.~ By assembling dissimilar filter materials (e.g., fiber and powdered charcoal, etc.)

Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

39  DF  CIGARETTE FILTER MAKING {5}
47.~ By assembling dissimilar filter materials (e.g., fiber and powdered charcoal, etc.) {2}
48  DF  .~.~> With application of forced air, vacuum or vibration to assist handling
49  DF  .~.~> Including plasticizer, adhesive, coating, or impregnant

DEFINITION

Classification: 493/47

By assembling dissimilar filter materials (e.g., fiber and powdered charcoal, etc.):

(under subclass 39) Method or apparatus comprising juxtaposing or fastening together portions of different types of filter material.

(1) Note. A tobacco or filter wrapping paper is not considered to be a filter material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

6, for a operation of this class including assembling or coating and the use of control means responsive to that assembling or coating.

67+, for assembling a rigid container combined with cutting, breaking, tearing, or abrading by a rotary tool.

75+, for assembling a rigid container combined with cutting, breaking, tearing, or abrading by a reciprocatory tool.

84+, for making a rigid container including assembly of distinct members.

210+, for making a pliable container including assembly of distinct members. 297+, for making a tube including assembly of distinct members.

334+, for assembling of distinct members combined with

adhesive coating.

343+, for assembling of distinct members combined with cutting, breaking, tearing, or abrading.

374+, for assembling of distinct members, one of which is a sheet or web, generally.