Connectable Cigarette Filter

Abstract

A connectable cigarette filter comprises a mouthpiece and a plurality of, or one to two, or two to three filter units connected with the mouthpiece. The mouthpiece is an inclined cylindrical body centrally provided with a stepped aperture. The stepped aperture has a front section formed as a sloped cavity. The inclined cylindrical body has a rear section whose outer surface is provided with a pair of planes. The filter unit is a stepped cylindrical body with a stepped through-hole comprising a large-diameter through-hole and a small-diameter through-hole. The front section of the stepped through-hole is formed as a sloped counterbore. The stepped cylindrical body has a rear section formed as a small-diameter, sloped cylindrical body which is shaped and sized according to the sloped counterbore, so that the small-diameter, sloped cylindrical body of one filter unit is insertable into the sloped counterbore of another filter unit.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to connectable cigarette filters and, more particularly, to a connectable cigarette filter whose filtering effect is adjustable at will and whose filter units are replaceable if they have lost their filtering function or deliver a poor filtering effect.[0003]2. Related Art[0004]Referring to FIGS. 5, 7, and 8, a conventional cigarette filter 3 is formed as a simply sloped cylindrical body 30 centrally provided with a stepped through-hole 31 comprising a large-diameter through-hole and a small-diameter through-hole. A filter element 4 is installed at a border between the large-diameter through-hole and the small-diameter through-hole. A front section of the stepped through-hole 31 is a sloped counterbore 32 configured for receiving an end of a cigarette 5 (as shown in FIG. 6). A rear section of the sloped cylindrical body 30 is provided with a pair of planes 33 to be gripped in a user's mouth...

AI Technical Summary

Benefits of technology

[0006]An objective of the present invention is to provide a connectable cigarette filter whose filtering effect is adjustable at will and whose filter units are replaceable if they have lost their filtering function or deliver a poor filtering effect.

[0007]To achieve the aforesaid objective, the present invention provides a connectable cigarette filter comprising a mouthpiece and a plurality of, or one to two, or two to three filter units connected with the mouthpiece. The mouthpiece is formed as an inclined cylindrical body centrally provided with a stepped aperture. The stepped aperture has a front section formed as a sloped cavity, which is a large-diameter aperture, configured for being inserted by and thus connecting with the filter unit. The inclined cylindrical body further has a rear section whose outer surface is provided with a pair of planes so as to form a generally flat O-shaped, cylindrical body to be gripped in a user's mouth when the user smokes with the cigarette filter. Each of the filter units is formed as a stepped cylindrical body centrally provided with a stepped through-hole comprising a large-diameter through-hole and a small-diameter through-hole. A filter element is installed at a border between the large-diameter through-hole and the small-diameter through-hole. The large-diameter through-hole is formed at a front section of the stepped through-hole of the filter unit as a sloped counterbore for being inserted by a cigarette. The stepped cylindrical body of the filter unit has a rear section formed as a small-diameter, sloped cylindrical body which is shaped and sized according to the sloped counterbore, so th

Problems solved by technology

Meanwhile, the one or two filter units nearest to the mouthpiece may have poor or

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