US 6,318,376 B1Granted

Filter tip structure for cigarette

OwnerChih-Wen Chenginventor

Life of this patent

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Abstract

A cigarette filter tip structure includes a cigarette holder, and a filter base mounted on the bottom of the cigarette holder. The cigarette holder includes a compartment defined therein and having a bottom formed with a shoulder, the compartment having a center defining a compression hole, four L-shaped support bases each mounted in an inner wall of the compartment, and each having a bottom formed with a transversely extending positioning portion. The filter base has a top defining a filter recess for receiving the shoulder of the cigarette holder, and a bottom defining a passage and formed with a mouth suction portion. The filter base includes a plurality of filter pieces each located adjacent to the bottom of the filter recess, a plurality of filter spaces each defined between two adjacent filter pieces and each connecting to the passage, an oil collecting needle mounted in a center of the filter pieces and located under the compression hole, and a protruding ring mounted in the filter base and located between the filter recess and the passage, the protruding ring defining a through hole connecting between the filter spaces and the passage.

Claims3

Dependent claims

A cigarette filter tip structure comprising:

a cigarette holder (20) having a compartment (21) defined therein and having a bottom formed with a shoulder (24), said compartment (21) having a center defining a compression hole (23), four L-shaped support bases (22) each mounted in an inner wall of said compartment (21), and each having a bottom formed with a transversely extending positioning portion (221);
and
a filter base (30) mounted on said bottom of said cigarette holder (20) and having a top defining a filter recess (31) for receiving said shoulder (24) of said cigarette holder (20), and a bottom defining a passage (34) and formed with a mouth suction portion (33), a plurality of filter pieces (311) each mounted in said filter base (30) and each located adjacent to the bottom of said filter recess (31), a plurality of filter spaces (312) each defined between two adjacent filter pieces (311) and each connecting to said passage (34), an oil collecting needle (32) mounted in a center of said filter pieces (311) and located under said compression hole (23), a protruding ring (35) mounted in said filter base (30) and located between said filter recess (31) and said passage (34), said protruding ring (35) defining a through hole (36) connecting between said filter spaces (312) and said passage (34).

Dependencies are inferred from the claim text.