Insertable cigarette smoke baffle for holders

A baffle for filtering cigarette smoke is described. The baffle is inserted into commonly available cigarette holders. The cleansing and filtering action of the baffle system is augmented by the throttling of the smoke in successive chambers which were created by the walls of the baffle and the interior of the cigarette holder. The successive chambers are interconnected by orifices.

SUMMARY OF INVENTION 
The smoking of cigarettes is enjoyed worldwide. Investigations have 
disclosed that smoking becomes habitual and those who do smoke are locked 
into a habit which they find is difficult to break or not worthwhile 
breaking. Clinical surveys have shown, and the Surgeon General of the 
United States has announced, that cigarette smoking is detrimental to 
one's health. So it is that the enjoyment of cigarettes, and the habit of 
cigarette smoking, can lead to fatal lung cancer. 
To avoid such serious consequences, filters have been developed to remove 
harmful ingredients. It has even been shown that cigarette holders would 
also tend to remove some of the harmful ingredients because fo the cooling 
experienced by the smoke in passing through a channel of non-ignition 
between the ignited hot tip and the lips of the smoker. Often, within the 
cigarette holder, a porous swab of cotton may be placed in an attempt to 
filter the smoke. Additionally, it is even possible to dampen such a 
porous swab in an attempt to wash the smoke. Unfortunately, filters and 
washes detract from the enjoyment of cigarette smoking, making the habit 
less enjoyable, but a habit no less. 
This inventor has designed a simple baffle which may be inserted into a 
cigarette holder which has been shown to remove harmful ingredients from 
the smoke without contributing any distracting taste or otherwise altering 
the enjoyment of smoking. The main feature of this simple baffle is 
optimum-size holes which further contribute to the cooling by a throttling 
process in the cigarette holder. The smoke experiences a free expansion 
after emerging from these holes in the baffle. It is a wellknown principle 
of refrigeration that a free expansion results in cooling. This cooling is 
adequate to cause a precipitation of some of the irritating and less 
enjoyable ingredients in the smoke. Hence, the baffle does not detract 
from the enjoyment of smoking and it has been shown to remove some of the 
deleterious ingredients in cigarette smoke.

DETAILED DESCRIPTION OF EMBODIMENT 
The entire system comprises a cigarette which is placed into the insert, 1, 
which is seated into the receptacle, 2, of cigarette holder, 3, as shown 
in FIG. 4. The cigarette and holder, 3, are illustrated for purposes of 
clarity and are not part of the invention. Cigarettes of varying lengths 
but generally all of the same diameter are available on the market as are 
cigarette holders in which the invention the insert, 1, may be seated with 
said cigarette attached. As aforementioned, the hot end of the cigarette 
is where the smoke is created which is drawn from the lip end of the 
cigarette and said smoke passes through the insert, 1, which has been 
seated in a snug fit into the holder, 3; the smoke exits from the holder 
at the mouthpiece, 4, and into the respiratory system of the smoker. The 
embodiment of the insert which the inventor developed was machined out of 
brass. However, this specification is not limited to brass or any other 
metal and it is conceived that the insert could be molded of plastic or 
other moldable material, so as to be lowcost and expendable. The brass 
insert herein described is very durable and may be easily washed and 
maintained as a personal possession of a user. For aesthetic reasons, the 
exterior wall of the receptacle, 2, has been diamond-knurled. Said 
recepticle holds the lip end of the cigarette. Adjacent to the receptacle, 
2, is a shoulder, 5, which grasps the cigarette holder, 3, in a tight 
friction fit so that the insert, 1, would not slip out of the cigarette 
holder because of gravity alone. There is a hollow extension, 6, which is 
a tube which has a axial hole, 7. At the extreme end of the hollow 
extension, 6, is a diametrical hole, 8, which goes through a diameter of 
said hollow extension, 6. At the end of said hollow extension is a 
disk-like baffle, 9, which has an outside diameter which is less than the 
inside diameter of the cigarette holder, 3, so as to create an annular gap 
between said baffle and inside wall of said cigarette holder. After the 
baffle, 9 there is a solid extension, 10, which is a continuation of the 
hollow extension, 6, which had been bisected by the baffle 9. The solid 
extension is a solid cylinder. At the extreme end of the solid extension, 
10, is a disk which acts as a seal, 11. This seal also seats tightly into 
the interior of the cigarette holder, 3, but also has a vent hole, 12. 
With the cigarette placed in the insert at the receptacle, 2, and the 
insert, 1, seated tightly into the cigarette holder, 3, smoke drawn 
through the cigarette passes through the axial hole, 7, of the hollow 
extension, 6, and exits through the diametrical hole 8. The smoke then 
passes around the baffle, 9, through the annulus gap comprising the space 
between the outside circumference of said baffle, 9, and the inner wall of 
the cigarette holder, 3. The smoke is then sucked parallel to said solid 
extension, 10, to the seal, 11. As aforementioned, this end disk of the 
seal, 11, is tightly seated against the inside wall of the cigarette 
holder, 15. The smoke then enters the mouthpiece, 4, of the cigarette 
holder by exiting through the vent hole, 12. 
Experiment has indicated the optimum size hole is made by a number 52 
drill. When the smoker inhales, the smoke is drawn into the axial hole, 7, 
and exits from the complimentary orifices of the diametrical hole, 8. The 
smoke is not confined to the chamber defined by the physical contours of 
the insert and the interior structure of the cigarette holder. A small 
negative pressure gradient exists in the chamber defined by the baffle, 9, 
and the seal, 11, parallel with the solid extension, 10. The smoke then 
passes through the vent hole, 12, in the seal, 11, and enters the final 
chamber area defined by the interior of the far end of the cigarette 
holder, 3, between the seal, 11, and the mouthpiece, 4. Each of these 
aforementioned chambers act as expansion volumes with their own negative 
pressure gradients. After the cigarette has been consumed and the insert 
removed from the cigarette holder, there is clear evidence of tar and 
smoke deposits which are indicative of the cleaning action contributed by 
the insert. The insert may be cleaned by any number of techniques 
compatible with the materials used in the insert. Tests performed indicate 
no decrease in smoking pleasure or taste occurs as long as the insert is 
kept clean of stale deposits.