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Патент USA US3061427

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‘Oct. 30, 1962
M. T. CADMAN
3,061,417
CONNECTION FOR SIDE TUBE OF REACTION FLASK
Filed Aug. 31, 1960
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MORGAN 7i CADMA/V
Aflorney
3,061,417.
United States Patent: 0
?atented Oct. 30, 1962
2
1
of the tube beneath the shelf and insert this adapter in
3,061,417
a tubing 22 of rubber leading to a gas source, not shown.
I ?t a sleeve 23 of rubber around tube 18 above the
CONNECTION FOR SIDE TUBE OF REACTION
FLASK
band 19 and hold it ?rmly with clamps 24. I intend
Morgan T. Cadman, Pittsburg, Calif., assignor to United
the term “rubber” of course to include obvious equiv
States Steel Corporation, a corporation of New Jersey
alents, such as suitable synthetic materials and plastics.
Tube 18 contains an opening .25, and sleeve 23 contains
a smaller opening ‘26 which registers with opening 25.
I push the side tube 12 of the tower through openings 25
Filed Aug. 31, 1960, Ser. No. 53,136
1 Claim. (Cl. 23--292)
This invention relates to an improved means for con
necting a side tube of a reaction ?ask or other vessel to 10 and 26.
Thus gas to be analyzed is conducted from the
source, through tubing 22, adapter 21, tube 18, side tube
a source of material or vacuum.
An example of equipment in which my connecting
12 into the tower.
Gas not absorbed in the tower dis
charges through the outlet tube 14.
I proportion the parts so that the side tube 12 is loosely
monly are glass and have a short integral tube extending 15 receive-d in opening 25 in tube 18, but tightly received
from one side through which gas enters to be analyzed
in opening 26 in sleeve 23. Thus the sleeve forms a
means can be used to particular advantage is a laboratory
carbon dioxide absorption tower. Such towers com
for its carbon dioxide content. conventionally this tube
is inserted in a plastic or rubber tubing which leads to
a gas source. I have observed this arrangement has dis
seal around the side tube and prevents gas from leaking
out or air from leaking in. The sleeve is easily replaced
when worn so that it always forms a gas-tight seal. I
advantages. It is unduly time consuming to connect or 20 can quickly and easily plug the side tube into the register
disconnect the glass tubing from the rubber tubing, and
ing openings 25 and 26: or remove it therefrom. Thus
there is also a safety hazard, since the glass may break.
I eliminate any need to insert the side tube into a rubber
In describing my connecting means as used with a carbon
tubing each time I use the equipment. The tubing 22
dioxide absorption tower, I do not intend to limit the
can remain permanently connected to the adapter 21.
invention to this particular application.
25
While I have shown and described only a single pre
An object ,of the present invention is to provide an
ferred embodiment of my invention, it is apparent that
improved connecting means which overcomes disadvan
modi?cations may arise.
tages of the conventional arrangement, that is, which
be limited to the disclosure set forth but only by the
scope of the appended claim.
Therefore, I do not wish to
can be connected or disconnected quickly and easily and
30
which eliminates the safety hazard.
I claim:
A further object is to provide an improved connecting
The combination with a vessel which has a side tube
means which employs a “plug-in” principle for connect
projecting from its wall, of a means connecting said tube
ing a side tube to a source of material.
to a source of material comprising an upright rigid tube
In accomplishing these and other objects of the inven—
extending both above and below said side tube in a per
tion, I have provided improved details of structure, a 35 pendicular relation thereto and being sealed at its upper
preferred form of ‘which is shown in the accompanying
end, a support to which said rigid tube is ?xed with its
drawing, in which:
lower end extending beneath said support for connection
The single FIGURE is a side elevational view, with parts
to the source, and a rubber sleeve ?tted around said rigid
broken away, showing a carbon dioxide absorption tower
tube above said support, said rigid tube and said sleeve
which has a connecting means embodying my invention. 40 having registering openings receiving said side tube, the
The drawing shows a conventional glass carbon di
oxide absorption tower 10 which has an integral side
tube 12 projecting from its wall for admitting gas. The
tower is packed with any suitable absorption medium
for carbon dioxide, as known in the art. The upper 45
end of the tower is plugged with a removable stopper
13, which contains an outlet tube '14. The tower rests
opening in said rigid tube being larger than the opening
in said sleeve and loosely receiving said side tube, the
opening in said sleeve tightly receiving said side tube and
forming a gas-tight seal therearound.
References Cited in the ?le of this patent
on a sheet metal base 15 supported on a wood shelf 16.
UNITED STATES PATENTS
The base 15 has an upturned ‘?ange 17 along its inner
edge.
In accordance with the present invention, I ?x a rigid
upright tube '18, preferably copper, to the ?ange 17 with
a band 19 which extends around the tube. The upper
end of tube 18 is sealed, as indicated at 20. The lower
50
1,945,769
2,132,538
2,215,100
2,537,232
2,595,493
end of the tube extends through suitable openings in base 55 2,933,376
15 and shelf 16, I ?t an adapter 21 over the lower end
2,964,390
Brumley _____________ __ Feb. 6, 1934
McGowan ___________ __ Oct. 11, 1938
Gustin ______________ __ Sept. 17, 1940
Nottingham __________ __ Jan. 9, ‘1951
Slaby _______________ __ May ‘6, 1952
McBrien _____________ __ Apr. 19, 1960
Cummings ..__, _______ __ Dec. 13, 1960
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