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Патент USA US2118612

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May 24, 1938.
w. KREUTZ
2,118,612
SMOKING PIPE
Filed May 14, > 1936
m
INVENTOR;
_
WALTER KREUTZ
BY 69%
ATTORNEY.
Patented May 24, 1938
2,118,612
UNITED ‘STATES PATENT OFFEQE
2,118,612
SMOKING PIPE
Walter Kreutz, St.’ Louis, Mo.
Application May 14, 1936, Serial No. 79,661
3 Claims. (01. 131—12)
My invention relates to smoking pipes and the smoking pipe is provided with the usual in
more particularly to means whereby the draw of
the pipe can be varied to suit each individual.
One of the objects of my invention is to pro
5. vide a smoking pipe with adjustable means for
varying the amount of smoke that may be drawn
through the mouthpiece, thus permitting the
smoker to get ‘either a light or a heavy smoke as
desired regardless of whether the tobacco is
10 loosely or tightly packed in the bowl.
Another and more speci?c object of my inven
tion is to provide a means for varying the draw
of a smoking pipe which is carried by and remov
able with the mouth-piece when it is detached
15 from the bowl and which is so constructed that
easy cleaning of the pipe will not be obstructed.
Still another object of my invention is to pro
vide a means for controlling the draw of a
smoking pipe which is e?icient and reliable in
20 operation, easily incorporated in a pipe, economi
cally manufactured, and which does not necessi
tate any change in the present standard pipe
construction.
Other objects of my invention will become ap
parent from the following description taken in
2
connection with the accompanying drawing show
ing two embodiments thereof.
In the drawing Figure 1 is a view of a smoking
pipe embodying my invention, the mouth-piece
3O
3
being separated from the bowl; Figure 2 is an
enlarged longitudinal cross-sectional view of the
principal parts for controlling the draw of the
pipe; Figure 3 is a view of the tubular member
which cooperates with the cap; Figure 4 is a
cross-sectional view of a modi?ed construction;
and Figure 5 is a cross-sectional view taken on
the line 5—5 of Figure 4.
As is well known to pipe smokers, the present
smoking pipes do not all have the same type of
40 draw through the mouth-piece. This, of course,
is due to varying cross-sectional areas of the pas
sages in the mouth-pieces and to the varying
lengths of the passages between the bowls and
the open ends of the mouth-pieces. Also, the
draw of a pipe is affected by the type of tobacco
4
used and its degree of tightness in the bowl. Be
cause of all of the above mentioned variables
affecting the draw of a pipe, it is, of course, nearly
impossible for a smoker to ?nd a pipe that is
50 "satisfactory to his particular liking as there is
nothing on the pipe by which he can control the
draw to suit his taste irrespective of the kind of
pipe he may buy or the way he packs the tobacco
in the bowl.
By the use of my invention I am enabled to
overcome the above noted objectionable fea
tures found in pipes as now constructed and pro
duce a pipe in which the draw can be so con
trolled as to secure the type of smoke desired.
Referring to Figures 1, 2 and 3, the bowl l oi‘
60
tegral stem 2 having an enlarged bore or pas
sage 3 in communication with the interior of the
bowl by the smaller passage 4. The mouth-piece
5 of the pipe is of usual construction having a
central passage 6. The inner end of the mouth
piece has integrally formed thereon a reduced
portion ‘i, which is of the same diameter as the
inner diameter of the bore 3, whereby the mouth
piece may be connected to the stem of the bowl 10
by inserting the reduced portion I into the bore
3. All of the structure just described is well
known and considered as standard pipe construc
tion.
In accordance with my invention, I provide the 15
connecting end of the mouth-piece with a tubu
lar element 8, which is adapted to be inserted into
a bore 9 at the end of the mouth-piece, this bore
being nothing more than an enlargement of the
passage 6 of the mouth-piece. If desired, the 20
tubular element may extend the entire length of
the passage 6. The outer end of the tubular ele
ment is cut away in the manner shown in order
to produce an extended portion In of semi-cy
lindrical formation. Integral projections H are
left upon the end of the extension ill for a pur 25
pose which will soon become apparent. A cap
l2, having an internal diameter substantially
equal to the external diameter of the tubular ele
ment 8, is slidably mounted upon the extension
II}. The construction is such that the coopera
tive relation between the tubular element and
the cap forms a variable ori?ce [3, the area of
this ori?ce depending upon the distance between
the open end of the cap and the tubular element.
35
When the cap I2 is slid inwardly upon the ex
tension l!) as far as possible, the ori?ce 13 will
be completely closed and when it is slid in the op—
posite direction to a point adjacent the end of
the extension, the ori?ce will be fully open and of 40
an area equal to or greater than the cross-sec
tional area of the passage 5 in the mouth-piece.
The projections ll, above referred to, may be .
bent in and out as desired and in this manner
provide the desired amount of friction between
45
the inner surface ofthe cap l2 and the extension
to insure that the cap will remain in an adjusted
position.
The cap I2 is of a smaller outer diameter than
the bore 3 of the stem of the bowl and when the
mouth-piece is connected to the stem, the tubu
lar element and cap will lie in the bore 3. There
50
is suflicient space between the wall of this bore
and the cap that the total cross-sectional area
of the space will be as great as the cross-sectional 55
area of the passage in the mouth-piece, thus not
decreasing the total amount of smoke which can
be drawn through the mouth-piece passage when
the ori?ce i3 is opened to its fullest extent.
Referring to Figures 4 and 5, I have shown a 60
2
2,118,612
slight modi?cation of the structure shown in Fig
ures 1, 2 and 3.
The tubular element 8 is formed
a “wet heel”. Also, the cap prevents any ?ne
tobacco from being sucked into the passage of
with an extension ID’ in the same manner as the
the mouth-piece and thereby clogging up the
extension In previously described but the pro
jections ll eliminated. The external surface of
the extension It!’ has formed thereon threads l4
pipe.
and the cap I2’ is provided with internal threads
l5 for cooperation with the external threads l4.
The movement of the cap l2’ with respect to the
10 extension In, to vary the area of the ori?ce I3,
is now accomplished by a screwing instead of a
sliding operation.
Since the use of internal threads on the cap
l2 may necessitate increasing the thickness of
15 the wall of the cap and thereby decreasing the
amount of space between said cap and the wall
of the bore 3 of the stem, when the cap is posi
tioned in said bore, the external surface of the
cap is provided with a plurality of spaced longi
20 tudinal grooves I 6 in order to insure that the
cap will not in any way obstruct the free passage
of smoke.
The tubular element and the cooperating cap
may be made of any type of material found de
sirable, as, for example, metal or possibly a
phenolic condensation product. However, in the
construction shown in Figures 1, 2 and 3, I pre
fer to make the parts out of metal and the tubular
element 8 especially should be made from some
deformable metal in order that the projections
may be easily bent to the proper position to form
the desired amount of friction between said pro
jections and the interior surface of the cap l2.
From the foregoing description of my inven
tion it is readily seen that the draw of the pipe
may be controlled as desired by varying the area
of the ori?ce l3.
The pipe may be originally
constructed with the passage 6 of the mouth
piece as large or as long as desirable and yet the
40 draw of the pipe may be changed to suit the taste
of the individual purchaser. If the smoker is in
the habit of packing his tobacco tightly in the
bowl and at the same time desires a heavy smoke,
he may properly adjust the ori?ce l3 so that the
45 area thereof is as large as the cross-sectional
area of the stem 6. On the other hand, if the
smoker desires a light smoke, he may decrease
the draw of the pipe by decreasing the size of
the ori?ce l3 to the desired area. If the smoker
50 packs his tobacco loosely in the bowl and desires
a heavy smoke, it will not be necessary to open
the ori?ce to such an extent as would be neces
sary when the tobacco is tightly packed. Also,
for a light smoke with loosely packed tobacco,
the ori?ce I3 would be closed to a greater extent
than when the tobacco was tightly packed.
Also,
Being aware of the possibility of modi?cations
in the particular structure herein described with
out departing from the fundamental principles
of my invention, I do not intend that its scope be
limited except as set forth by the appended
claims.
10
Having fully described my invention, what I
claim as new and desire to secure by Letters Pat
ent of the United States is:
1. In a tobacco pipe, the combination of a
mouthpiece adapted to be detachably connected 15
to a pipe bowl and having a passage therethrough,
a tubular element having one end extending into
the passage of the mouthpiece and provided at
its other end with an integral semi-cylindrical
extension, and a cylindrical cap having a closed 20
end and telescopically positioned on said exten
sion for longitudinal movement, the end edge of
said cap being cooperatively associated with the
edge portion of the tubular element adjacent the
point of joinder of the extension to thereby form
a variable ori?ce for controlling the volume of
smoke that can be drawn through the mouth
piece, said tubular element and extension when
the cap is removed forming no obstruction to the
free passage of a cleaning element in an axial 30
direction through the stem and tubular element.
2. In a tobacco pipe, the combination of a
mouthpiece adapted to be detachably connected
to the pipe bowl and having a passage there
through, a tubular element having one end ex
tending into the passage of the mouthpiece and
provided at its other end with an integral semi
cylindrical extension, said extension being pro
vided with resilient projections, and a cylindrical
cap having a closed end and telescopically posi
tioned on said extension for longitudinal adjust
ment, said projections frictionally cooperating
with the inner wall of the cap to hold said cap
in adjusted position, the end edge of said cap
being cooperatively associated with the edge por 45
tion of the tubular element adjacent the point of
joinder of the extension to thereby form a vari
able ori?ce for controlling the volume of smoke
that can be drawn through the mouthpiece, said
tubular element and extension when the cap is
removed forming no obstruction to the free pas
sage of a cleaning element in an axial direction
through the stem and tubular element.
3. In a tobacco pipe, the combination of a
mouthpiece adapted to be detachably connected 55
to a pipe bowl and having a passage there
through, a tubular element having one end ex
by the use of my invention a long pipe can be
made to draw like a stubby pipe or vice versa by
a proper adjustment of the ori?ce.
60
As can be readily seen, my invention does not
tending into the passage of the mouthpiece and
provided at its other end with an externally
require that the general construction of the pipe
be changed in any manner except possibly in
creasing the length of the bore 3 in the stem of
a cylindrical cap having a closed end and in
ternal threads and adapted to be screwed on said
the bowl.
Its use on a pipe also does not hinder
the cleaning of the pipe for the cap I2 may be
quickly removed and the absorbent pipe cleaner
passed directly through the passage in the
mouth-piece in the usual manner.
When my invention is embodied in a pipe, it is
70 to be noted that the cap 12 is very e?ective in
preventing any moisture, which may seep down
the passage 6 of the mouth-piece from the smok
er’s mouth, from passing on to the bottom of the
bowl of the pipe and causing What is known as
threaded integral semi-cylindrical extension, and 60
extension for longitudinal adjustment, the end
edge of said cap being cooperatively associated
with the edge portion of the tubular element ad 65
jacent the point of joinder of the extension to
thereby form a variable ori?ce for controlling
the volume of smoke that can be drawn through
the mouthpiece, said tubular element and ex
tension when the cap is removed forming no ob 70
struction to the free passage of a cleaning ele
ment in, an axial direction through the stem and
tubular element.
WALTER KREUTZ.
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