U.S. patent number 3,759,268 [Application Number 05/061,086] was granted by the patent office on 1973-09-18 for selective air dosing means for cigarettes.
Invention is credited to Jacques Plourde.
United States Patent |
3,759,268 |
Plourde |
September 18, 1973 |
SELECTIVE AIR DOSING MEANS FOR CIGARETTES
Abstract
A cigarette filter which can be adapted to any kind of
cigarette, regular or filter, and be torn off if desired. It could
be used for filtering smoke and selectively diluting said smoke
with air. When used in combination with an ordinary cigarette, the
resulting cigarette comprises a cylindrical tobacco roll,
surrounded with its usual paper wrapper, and a filter. The filter
is spacedly mounted at one end of the tobacco roll to define a
hollow cylindrical inner space therebetween. Inside the hollow
cylindrical inner space, there is a porous disc, in which the
opposite faces are preferably both concave. This disc is positioned
substantially half-way between the end of the cylindrical tobacco
roll and the filter to divide the hollow cylindrical space into a
first and a second smoke cooling chamber. Perforations are provided
in the walls of both smoke cooling chambers and the perforations
can at will be covered or uncovered to cause one or both chambers
to become permeable to air. In this manner, when only filtering of
the smoke is desired the filter cigarette is used as such. When
smoke diluted with air is desired, the first cooling chamber is
made permeable to air. Finally, if air exclusively is intended to
be inhaled, both cooling chambers are rendered permeable to air
thus precluding any substantial inhaling of smoke. The disclosure
also relates to a filter cigarette adapted with the above
supplementary filtering device.
Inventors: |
Plourde; Jacques (Ste-Foy,
Quebec 10, CA) |
Family
ID: |
4086872 |
Appl.
No.: |
05/061,086 |
Filed: |
August 5, 1970 |
Foreign Application Priority Data
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|
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May 25, 1970 [CA] |
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083,703 |
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Current U.S.
Class: |
131/336;
131/198.2 |
Current CPC
Class: |
A24D
1/04 (20130101); A24D 3/041 (20130101) |
Current International
Class: |
A24D
3/04 (20060101); A24D 3/00 (20060101); A24D
1/00 (20060101); A24D 1/04 (20060101); A24d
001/04 () |
Field of
Search: |
;131/9,10,1A,10.3,15B,198,198A,10.7 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Reich; Joseph S.
Claims
I claim:
1. A filter cigarette intended for filtering smoke and selectively
diluting said smoke with air comprising:
a. a cylindrical tobacco roll surrounded with a paper wrapper;
b. a filter;
c. first means to mount said filter adjacent one end of said
cylindrical tobacco roll and spaced therefrom, said first means
including a masking tear strip means for permitting the removal of
said filter from said tobacco roll, said tear strip means being
mounted in sticking engagement over said paper wrapper;
d. said first means defining a hollow cylindrical chamber between
said one end of said tobacco roll and said filter;
e. a circular porous disc positioned in said hollow cylindrical
chamber substantially halfway between said one end of said tobacco
roll and said filter;
f. said circular porous disc dividing said hollow cylindrical
chamber portion into a first smoke cooling chamber between said one
end of said tobacco roll and said disc, said first smoke cooling
chamber portion receiving smoke from said one end of said tobacco
roll, and a second smoke cooling chamber portion between said disc
and said filter, said second cooling chamber receiving smoke
passing from said first smoke cooling chamber and through said
disc;
g. said first means including a pair of air permeable portions,
each portion effecting communication between the exterior of said
cigarette and one of said cooling chamber portions, said first
means further including removable second and third means each of
which cooperate with one of said air permeable portions to
selectively seal said portions thereby blocking communication
between the exterior of said cigarette and one of said cooling
chamber portions whereby if no filtering of smoke is desired said
first means and said filter are removed from said one end of said
cylindrical tobacco roll by said tear strip means, if only
filtering of said smoke is desired, the filter cigarette is used as
such while said second and said third means are in place on said
first means, if smoke diluted with air is desired said second means
is removed to cause said first cooling chamber portion to be
permeable to air, and if air in the substantial absence of smoke is
intended to be inhaled, said second and said third means are
removed to cause both said cooling chamber portions to be rendered
permeable to air thus precluding any substantial inhaling of
smoke.
2. A filter cigarette as claimed in claim 1, wherein said first
means comprise a filter wrapper which surrounds said filter and
extends past said one end of said tobacco roll over said paper
wrapper, said filter and said one end being spaced from one another
and defining said hollow cylindrical chamber between said tobacco
roll and said filter.
3. A filter cigarette as claimed in claim 2, wherein said removable
second and third means comprise masking tear strips.
4. A filter cigarette as claimed in claim in claim 1, wherein at
least one of said cooling chamber portions comprises of tar
absorbing and nicotine absorbing agents
5. A filter cigarette as claimed in claim 1, wherein the opposite
faces of said porous disc are concave.
6. A filter cigarette intended for filtering smoke and selectively
diluting said smoke with air comprising:
a. a cylindrical tobacco roll surrounded with a paper wrapper;
b. a smoke filter;
c. a smoke filter wrapper which surrounds said smoke filter and
extends past one end of said tobacco roll over said paper
wrapper;
d. said smoke filter and said one end of said tobacco roll being
covered with said smoke filter wrapper, said smoke filter and smoke
filter wrapper defining a hollow cylindrical chamber between said
one end of said tobacco roll and said filter;
e. a circular refractory porous disc in which the opposite faces
are concave, said disc positioned in said hollow cylindrical
chamber substantially halfway between said one end of said tobacco
roll and said filter;
f. said circular refractory porous disc dividing said hollow
cylindrical chamber into a first and a second smoke cooling chamber
portion;
g. said smoke filter wrapper having perforations in portions
thereof surrounding said smoke cooling chamber portions
h. the perforated portion of said wrapper surrounding said first
cooling chamber portion being covered with a first removable
masking tear strip;
i. the perforated portion of said wrapper surrounding said first
cooling chamber portion being covered with a second removable
masking tear strip;
j. a third removable masking tear strip mounted in sticking and
overlapping engagement over said smoke filter wrapper and said
paper wrapper, whereby if no filtering of smoke is desired said
third removable masking tear strip is removed and said smoke filter
and said smoke filter wrapper are thrown away, if only filtering of
said smoke is desired the filter cigarette is used as such while
the first, second and third masking tear strips are in place
respectively over the perforated portions of said wrapper
surrounding said first and said second cooling chamber portion and
over said smoke filter wrapper and said paper wrapper, if smoke
diluted with air is desired said first tear strip is removed to
uncover the perforated portions of said wrapper surrounding said
first cooling chamber portion to cause said first cooling chamber
portion to be permeable to air, and if air exclusively is intended
to be inhaled, said first and said second tear strips are removed
to uncover the perforated portions of said wrapper surrounding both
said first and said second cooling chamber portions to cause said
first and said second cooling chamber portions to be rendered
permeable to air thus precluding any substantial inhaling of
smoke.
7. A filter cigarette as claimed in claim 1 wherein at least one of
said cooling chamber portions includes a nicotine absorbing agent.
Description
This invention is directed to a filter cigarrette. More
particularly, the present invention relates to a cigarette which is
provided with a device adapted to produce improved filtering of the
smoke from cigarette s and to selectively dilute said smoke with
air.
To be realistic, it is obvious that the controvercy concerning the
harm due to cigarette smoking is still very deep. After many
individual efforts to discover an ideal cigarette or to stop
smoking, after all the research done by cigarette manufacturers and
the introduction on the market of a great number of filters, after
many warnings and legislative proposals made by various
governments, after the propoganda by various groups on the harm
caused by cigarettes and the fighting back of human rights groups,
the same problem remains.
The only concrete result is a slight decrease of the number of
smokers, leaving nearly everybody dissatisfied.
In order to overcome the above disadvantages, I have now found that
it is possible to produce a cigarette which is so versatile in its
use that it can be smoked as well by those who refuse to use a
filter, those who wish to smoke their preferred filter cigarette as
usual, those who only wish to have an acceptable filtering of the
smoke, those who are interested in air-attenuating the cigarette
smoke and finally even by those who would be content merely to
handle a cigarette and inhale air to calm their nervousness.
For these purposes, I have provided a filter cigarette which is
intended for filtering smoke and selectively diluting the smoke
with air. The filter cigarette of my invention comprises a
cylindrical tobacco roll surrounded with its usual paper wrapper,
and a filter. First means are provided to spacedly mount the filter
at one end of the tobacco roll and these first means define a
hollow cylindrical inner space between the end of the cylindrical
tobacco roll and the filter.
A circular porous disc in which the opposite face are preferably
both concave is mounted in the hollow cylindrical inner space
substantially halfway between the end of the tobacco roll and the
filter. The circular porous disc thus divides the hollow
cylindrical space into a first and a second smoke cooling chamber.
Finally, means are provided which are operable to cause the first
and/or second chamber to become permeable to air. In this manner,
when only filtering of the smoke is desired, the filter is used as
such while the first and second chambers are impervious to air.
When smoke diluted with air is desired, the first cooling chamber
is made permeable to air. Finally if air exclusively is intended to
be inhaled, both cooling chambers are rendered permeable to air,
thus precluding any substantial inhaling of smoke.
In accordance with a preferred embodiment of my invention, there is
provided a filter wrapper, preferably made of paper, which
surrounds the filter and extends past the end of the cylindrical
tobacco roll over the paper filter, to hold the cigarette and to
define the hollow cylindrical space between the tobacco roll and
the filter.
According to another embodiment, the filter wrapper may be formed
with peripheral microscopic or macroscopic pores or perforations in
the portions thereof which surround each cooling chamber and these
porous portions or perforations are each covered in sticking
engagement thereover with a removable masking tear strip.
The filter wrapper may be formed to overlie the end of the tobacco
roll over the paper wrapper, and in this case, there is provided
another removable masking tear strip which is mounted in sticking
engagement over both the filter wrapper and the tobacco roll paper
wrapper. This serves to facilitate an easy removal of the filtering
device by a person who wishes to smoke a cigarette without a
filter. It will be noted that the filtering device of the invention
can be mounted at the end of a regular filter cigarette, and in
this case the device disclosed herein is shorter.
In accordance with yet another preferred embodiment, the first
and/or second cooling chambers comprise at least one substance
deposited therein selected from the group consisting of catalysts,
anti-tar agents and anti-nicotine agents.
In the drawings which illustrate the invention.
FIG. 1 is a perspective view of the cigarette filter according to
my invention mounted at the end of a regular cigarette with masking
tear strips shown in dotted lines while being removed;
FIG. 2 is an exploded enlarged fragmentary view partly cut away of
the same cigarette filter; and
FIG. 3 is a fragmentary view in longitudinal section through the
filter end of the filter cigarette of my invention.
Referring to the drawings, the filter cigarette 1 of my invention
will be seen to comprise a cylindrical tobacco roll 3 which is
surrounded with a paper wrapper 5. The filter cigarette 1 is
provided at one end thereof with a filtering and air-diluting
device which will now be described and will be referred to for the
sake of conciseness, as the filter 7.
The filter 7 comprises a cylindrical roll of filtering material 9
or tobacco which is surrounded by a filter wrapper 11. The
filtering material 9 should of course be shorter when the cigarette
filter is mounted at the end of a filter cigarette. It will be
noted that the filter wrapper 11, while entirely surrounding the
filtering material 9 also extends a certain distance past the end
13 of the tobacco roll 3 over the paper wrapper 5 all in the manner
illustrated in FIG. 3 of the drawings. In this manner, the filter
wrapper will connect the tobacco roll 3 and filtering material 9
and define as cigarette. a substantially hollow cylindrical inner
space between the end 13 of the tobacco roll 3 and the filtering
material 9. cigarettes
Substantially midway between the end 13 of the cylindrical tobacco
roll 3 and the filtering material 9, there is mounted in the hollow
cylindrical inner space defined above, a porous disc 15 made of
refractory material in which both opposite faces 15a and 15b are
concave. In this manner, the porous disc divides the above hollow
cylindrical inner space into two smoke cooling and circulating
chambers 17 and 19. As illustrated by the arrows 21 and 23, the
smoke which is sucked from the tobacco roll first penetrates into
the first smoke cooling chamber 17 where the heavy portions
circulate in a whirling motion (arrows 23) and may even be
deposited, while the lighter and less harmful portion pass through
the porous disc 15 into and through the second cooling chamber 19
(arrows 21). There again the heavier portion may also be subject to
a whirling motion (arrows 23).
The filter wrapper 11 comprises two depressed zones 25 and 27 in
the form of rings which respectively surround smoke cooling
chambers 17 and 19. The depressed zones 25 and 27 are each formed
with peripheral macroscopic pores or perforations 28 and 28a which
allow the access of air into these chambers when there is a suction
produced through the filtering material 9. The depressed zones 25
and 27 are each covered with removable masking tear strips 29 and
31 and the purpose thereof will be discussed more in details
hereinbelow.
Finally, the filter wrapper 11 is terminated by an circular
depressed area 33 which will serve to connect the filter wrapper 11
to the cylindrical tobacco roll 3. This is made possible by
providing a masking tear strip 35, having a configuration as
illustrated in the drawings, in sticking engagement over both the
paper wrapper 5 and the filter wrapper 11.
A line of demarcation 37 is printed on the filter wrapper 11 to
indicate the extreme limit to which the cigarette may be used.
To understand the operation and advantages of the filter cigarette
of my invention, let us assume that all the cigarettes which are
sold are provided with the filtering device just described.
Basically there are four type of cigarette smokers:
1. those who prefer a cigarette without any filtering
2. those who are used to smoke an ordinary filter cigarette;
3. those who have elected to dilute with air the smoke that they
inhale; and
4. those who would like to stop smoking but cannot quit the nervous
habit of manipulating a lighted cigarette and holding it in their
mouth.
For the first type of smokers, they merely have to tear off the
masking tear strip 35 and they are left with an ordinary cigarette
which they can smoke by their own free will.
If the smoker elects to smoke an ordinary filter cigarette he
merely uses the cigarette as it comes out of the package realizing
that he will obtain filtering of the smoke, or he will buy his
preferred filter cigarette provided with the filtering device of my
invention, which he will tear off.
For those who wish to air-attenuate the cigarette smoke, this is
easily accomplished by tearing off the masking tear strip 29 and
the air introduced into the smoke cooling chamber 17 will be mixed
with the smoke.
If both masking tear strips 29 and 31 are removed so much air will
finally be allowed in the cooling chambers 17 and 19 that the
device will preclude any substantial inhaling of smoke. In other
words at each puffing of the cigarette smoke, the air penetrates by
the shortest and easiest route, i.e., through the macroscopic pores
or perforations 28a. The porous disc 15 then creates an obstacle
which is sufficient to prevent smoke from passing therethrough. If
it ever passes through the disc 15, it will whirl in chamber 19 and
exit through the macroscopic pores or perforations 28a. In this
manner, the person using it will in fact accomplish an act of
smoking but will not really smoke since there will be no
substantial inhaling of smoke.
* * * * *