Note: Descriptions are shown in the official language in which they were submitted.
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During recent years an increasing number of different
types of smoke filtering devices have been developed. Many of
these devices have been made the subject of United States Letters
Patent among them being No. 3,367,345 showing a cigarette holder
featuring a radially extending constricted bore for accelerating
the velocity of the smoke as it is pulled from a lighted cigar-
ette on inhalation. Prior patents in this field or environment
also are Nos. 3,174,487 covering another construction for removing
tars and nicotine from traveling smoke which includes an insert-
able baffle unit having a grooved hemispherical portion thus
affording a definite path for the smoke to take as it is drawn.
No. 3,434,480 covering a disposable filter in which a plurality
of baffle inserts are provided having transverse and peripheral
slots therein; No. 3,468,316 covering a filter which is of complex
and expensive construction includlng specially formed surfaces of
a plug 12 in relation to the wall of sleeve 10, as embodied in
cylindrical disc portisns 36, 37, and 38 wherein the transverse
cross-sectional areas thereof are equal to the cross-sectional
area of bore 14, see Flg. 3; together with No. 3,685,522 disclos-
ing a cigarette holder for variably diluting the drawn smoke with
atmospheric air controlled by a built-in valve. Other patents in
this general field are Nos. 3,690,329; 3,810,476; and 3,926,199
My present invention actually removes tars and nicotine on suc- ~
cessive inhalations by alternation of expanding and contracting k
the smoke coupled with means for dissipating developed heat, as
well as provides a relatively simple and inexpensive assembly
which obviates all of the disadvantages of prior tobacco smoke
filters.
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A primary object of my present invention is to provide
an improved tobacco smoke filter which is highly efficaceous in
condensating nicotine and tar from the smoke.
Another important object of the invention is to provide
a tobacco smoke filter of the indlcated nature which is addition-
ally charactérized by the inclusion therein of a heat dissipating
element permitting only a small amount of smoke to pass there-
through in a given time.
A still further object of my invention is to provide an
improved tobacco smoke filter of the aforementioned character
which enables the cooling of the smoke as desired.
Other objects of the invention, together with some of
the advantageous features thereof, will appear from the following
description of a preferred embodiment and certain modified embodi-
ments of the invention which are illustrated in the accompanying
drawings exemplifying the best mode of construction and manner of
using the same. I
Referring to the drawings:
Fig. 1 is a front elevational view of a preferred embodi-
ment of the invention.
Fig. 2 is a front elevational view of a modified embodi-
ment of the invention.
Fig. 3 i8 a longitudinal sectional elevational view of
the preferred embodiment of Fi~. 1 and taken on the line 3-3
thereof.
Fig. 4 is a longitudinal sectional elevational view of
the modified embodiment of Flg. 3 and taken on the line 4-4
thereof.
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Fig. 5 is an exploded view of the assembly of Fig. 1,
illustrating the detachable sections thereof in order of their
interconnections to one another.
Fig. 6 is an enlarged sectional elevational view taken on
the line 6-6 of Fig. 3.
Fig. 7 is an enlarged sectional elevational view taken on
line 7-7 of Fig. 3 and showing the expanded and constricted
relationship of the smoke passage of bore within a single section
of the assembly.
Fig. 8 is an enlarged sectional elevational view taken on
the line 8-8 of Fig. 3 showing the construction of the heat dis-
sipator section.
Fig. 9 is an enlarged sectional elevational view taken on
the line 9-9 of Fig. 3 and illustrating the expanded and restrict-
ed bore extending through the series of dove-tailed fitting sec- t
tions of the assembly.
Fig. 10 is an enlarged elevational section taken on
line 10-10 of Fig. 3 illustrating the restricted bore at the
mouthpiece section of the filter.
Fig. 11 is a perspective view of the assembly with arrows
to show relative movement of certain sections for adjusting the
path of movement of inhaled smoke.
In its preferred and best mode of construction, the
tobacco smoke filter of the present invention comprises an assem-
bly of a plurality of detachably connected sections including a
cigarette or cigar receiving and holding section, a heat dissipat-
ingsection,anadjustment section for increasing and decreasing the
restricted travel of the inhaled smoke, and a mouth-piece section;
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said section together defining restricted areas and expansion
chambers for condensating the inhaled smoke to remove more and
more nicotine and tars from the inhaled moving smoke.
In accordance with my invention, I provide in an assembly
which is embodied in a cigarette or cigar holder that is designat-
ed generally by the reference numeral 10, a plurality of specially
formed filter sections which are disignated generally by the
reference numerals 11, 12, 13 and 14 and which are illustrated
in Fig. 1 of the annexed drawings in assembled form as a preferred
embodiment of the invention; such sections being also illustrated
in exploded or disassembled form separately or individually in
Fig. 5. The sections may be fabricated or molded from any desired
material. In the present embodiment, I fashion sections 11, 13
and 14 from an acrylic plastic material but any other suitable
plastic may be employed, such as a urea or a phenol condensate,
which ~s extruded into a suitable mold for each of these plastic
sections. Section 12 is fabricated from a heat-dissipating metal,
such as aluminum or an aluminum alloy; and can be made in connect-
able two parts or can be cast as an integral unlt for sake of
economy.
As particularly illustrated in Fig. 2 of the accompanying
drawings, a modified embodiment of the present invention comprises
a specially constructed section lS which is conveniently interpos-
ed between sections 11 and 12 and which performs ln about the
same manner as section 11 thereby further lessening the intake by
the smoker of nicotine and tar.
In Fig. 3 of the accompanying drawings, I have shown, in
sectional elevation, details of the form of construction of each
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of the several sections 11 to 14 inclusive which define the path
of travel of successive inhalations of tobacco smoke from a light-
ed cigarette or cigar; it being immediately observable that such
form of construction effects successive alternations of restricted
travel areas and expansion chambers thereby effecting rapid con-
densation of the smoke and effective removal of more and more
nicotine and tars. In order to enable the admission of air into
the inhaled smoke when desired, I provide a small opening 16 in
section 12 which can be placed in communication with the interior
of the holder 10 as hereinafter described.
Each of the various connectable and detachable sections
of my improvemen~ is specially constructed in order to attain
optimum and efficaceous results not only in effecting the reduc-
tion of nicotlne and tar intake upon the sllccessive inhalations of
tobocco smoke but also in affording a cooler and more delightful
experience on every occasion of smo~ing a cigarette or cigar. To
this end and as illustrated all of the sections are formed to a
smooth outer periphery for ease in handling the detachably connec-
ted sections as well as for aesthetic purposes. Specially con-
structed section 11 is formed with a reduced laterally extending
hollow element 21 defining an inlet chamber 22 into which a cig-
arette 23, shown in dotted outline, -an be inserted and held while
being smoked; such element 31 belng integral with and merging with
a generally u-shaped longitudinally extending portion defining an
enlarged chamber 24 and providing an inclined restrictive bore 26
defined by a pair of opposed or confronting inclined flanges 27
and 28 extending inwardly from the transverse base 29 of the
u-shaped portion of section 11 with a restricted outlet 30; said
base 29 having a passage 31 therein communicating with the inlet
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chamber 22 as well as with the bore 26.
It will thus be observed that by this construction, I
have provided for a relative large inlet chamber 22 for accomodat- ~
ing a cigarette which is in direct communication with a restrict- !
ed passage 31 directly communicating with the slanting restricted
bore 26 having its outlet 30 in close proximity ~o an inner wall
of section 11 and opening to the expanded chamber 24 thereof.
The inhaled tobacco smoke travels through expansion chamber 22
and is immediately compressed through the restricted passage 31
and through restricted bore 26 and again expanded into large
chamber 24. During this travel and consequent compression and
expansion of the tobacco smoke a relatively high percentage of
the nicotine and tars are removed from the smoke. The special
construction of section 11 includes the provision of an annular
inner shoulder 32 for removably receiving a laterally projecting
annular flange 33 formed on section 12 of the holder, which is
preferably fabricated from a heat-dissipating metal such as
aluminum or an aluminum alloy, and which includes a transverse
web 34 formed with a restricted passage 36 therethrough adjacent
to one side of the holder.
By virtue of this special construction of section 12,
additional nicotine and tar are trapped from the traveling smoke
as it is compressed from the enlarged or expanded chamber 24 of
section 11 into and through the restricted passage 36 of the web
of section 12. The web 34 carxies a part 37, either as an
integral casting therewith or as a separate element connected
thereto by riveting which consists of a hollow tapering unit
having a tapering restricted bore 38 to guide the tobacco smoke
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into an axially extending bore 39 fashioned in section 13 ofholder 10 by inturned confrontingflanges 41 and 42 which are pro-
jected rearwardly and in parallel relationship from the base 43
of the generally u-shaped section 13. To made the detachable
connection between sections 12 and 13, I provide an annular outer
flange 44 on section 12 which rotatably seats on an annular inner
shoulder 46 of section 13. It is to be especially observed that
I preferably fashion inner shoulder 46 with a series of radial
passages 47 which are circumferen~ially spaced apart and which
establish communication with the exterior of the holder through
opening 16 of the holder and which extends through flange 44 of
section 12. Air can thus be drawn through opening 16 into the
radial passages 47 of inner annular shoulder 46 to pass the air
into the tobacco smoke traveling through the bore 38 of tapered
unit 37 and thence into and through the axial bore 39. The re-
stricted bore 39 opens into a slightly expanded chamber 51 de-
fined by the reduced portion 48 at the outer end of section 13
and serving as a mount for the mouth-piece section 14 of the
holder which, in turn, defines a long tapering chamber 52 merging
with the slightly expanded chamber 51 at the inner end thereof
and merging into the restricted outlet 53 of the holder through
which the inhaled smoke enters the mouth of the smoker. It is to
be noted, also, that the special construction of plastic section
13 includes a relatively wide inner annular in meeting engagement
with the inner wall 56 of such section for guiding a portion of
the traveling tobacco smoke into an expanded chamber 57 from
which it also enters the restricted bores 38 and 39 thus further
trapping additional amounts of nicotine and tars by the
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compression of the smoke.
By virtue of the dove~tail connection between the annular
outer flange 44 of section 12 and the perforated annular inner
shoulder 46 of section 13, it is relatively easy to pull sections
12 and 13 apart, and in the event it is desired to cool the smoke,
a few drops of water can be introduced into section 13 after
disconnecting the same from section 12.
Should the smoker desire to reduce further amounts of
nicotine and tar from the cigarette smoke, he can employ the
3 modified holder 10 illustrated in Fig. 2 and 4 of the annexed
drawings. This modification is similar to a large extent with
the preferred embodiment but differs therefrom by the inclusion
of section 15 which is interposed between sections 11 and 12.
As shown section 15 is so constructed as to provide a generally
u-shaped element extending longitudinally from a transverse base
29' having a through opening 31~ adjacent to one wall; such open-
ing communicating with expanded chamber 24 of section ll at one
end thereof and with a slanting bore 126' at the outer end
thereof. The bore 126' is defined by a pair of inturned slanting
0 flanges 127' and 128' and terminates adjacent one horizontally
extending wall of the section in an outlet 130'; said flanges
127' and 128' defining an expanded chamber 124' of section 15
which merges into the constricted passage 36 of section 12.
Section 15 is fashioned at one end thereof with an annular flange
133' for removably mounting of the section on the annular inner
shoulder 32 of section 11, and at the outer end thereof with anan-
nular inner shoulder 132' for rotationally receiving the adjacent
annular flange 33 of section 12 of the holder 10'.
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With reference to Fig. 11, it will be observed that
section 13 can be rotated, as indicated by the small arrows,
relat~ve to section 12 to bring the vent or opening 16 into
registry with any selected one of the radial passages 47 in the
annular perforated inner flange 46 on section 13. Thus, the
amount of alr admitted into the interior of the chambers and
bores of sections 13 and 14 can be varied and controlled so as
to maintain the same cool during the smoking of the cigarette
or cigar.
J It is to be understood that the appended claims are
intended to cover not only the embodiments illustrated but also
variations thexeof within the scope and purview of the invention.
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