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Патент USA US2406745

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Sept. 3, -1946.
M. -c_zURTzE
Filed Jan'. 21, 1943
Patented Sept. 3, 1946
Scholl Mfg. Co., Inc. , Chicago, Ill., a corpora
tion of New York
Application January 21., 1943„Serial No. 473,059
4 Claims.> (Cl. 13S-.89)l
This invention relates to improvements >in
means for capping tubing, pipe, conduit,’or the
like, which tubing or Asimilar structure'may be
ultimately used to carry gas, gasoline. oil, air,
water, or some other fluid.
vIt is «also a feature of this invention to provide f
means for temporarily capping tubing, Vwhich
means are equipped with non-hardening ad- ’
hesive Vfor easy andY ready Aapplication and re
moval, and whichmeans also are shaped topro
In connection with the manufacture of various
vide Vpulled over Yportions ’when the tubing is
machines and mechanism, and especially in the
capped, which aid in indicating tampering with
manufacture of war materials, considerable tub
the'capped tubing if such occurs.
. j
ing, pipe, conduit, or the like is utilized as lines
, While some of the more salient features, Ychar
for gas, gasoline, oil, air, water, or other fluid. 10 acteristics `and Yadvantages, ofthe instant invernn
This tubing, after being` made Yor after being
tion have been .above pointed out, others will
received froma manufacturen'in most cases re
quires a number of operations to be performed on
the tubing, or a number of nipples, unions, 'el
bows, or similar fittings tobe added to the tubing _
become apparent 'fromv the 'following disclosures,
taken in .conjunction with the accompanying
drawing, in which;
Figure 1 is 'an inside face of “tubing capping
means ,embodying principles of the instant in~
prior to the ultimate and final> installation of
the tubing in aparticular mechanism. It is de
sirable to keep'theends-of thejtubing closed dur
Figure 2 is a vertical sectional view oi' the
ing all of the operations thereonor additions
structure of.Figure 1 taken substantially asin-V
thereto when Work is actually not being per 20 dicated ~by the section line lI-`II of 'Figurer
formed on the tubing, so as topreventnndesirable
looking inl the direction of the arrows;y
or unintentional introduction of foreign matters
or >substances into the tubing, and further, asa
means of discouraging sabotage. However, `the
covering of the tubing ends in between operations
on _the tubing should be such> as not to add ma
terially tò the necessary labor in connection with
the tubing and. notto add materially. to the eX'- y
pense ofthe ultimate installationof the tubing.
With the foregoing in mind, it is an important
object of the instant invention to provide a meth
od ofand means for very economically and sim
k ply capping tubing in a temporary manner.
Another object of the invention resides in the
provision of a method of and means for quicklyy
and easily capping tubing temporarily in a man
ner and by means which, to a reasonable extent,
will denote tampering with the capping material.
Another object of the invention is the provision
of capping means for the ends of tubing, Which »
means are simple in construction, highly eco
nomical to use, and which eifectively close the
tubing ends, keeping out dirt, moisture, and
other foreign matter, the means being as simple
in removal as in application.
A further object of the invention is the pro
vision of capping means 'for the ends of tubing,
which means are of such construction as to be
Figure13 isa fragmentary projectional view of
a piece of tubing with which theinstant inven
tion may be associated; and
, „
Figure vIl is a'fragmentaryprojectional view
similar to Figure 3, showing the tubing of Figure
3 cappedwith the structure of Figures 1 and v2.
` ,
As shown on the drawing:
In the illustrated embodiment of this inven
tion, with reference moreparticularly to Figures
1 and 2„'there is shown Ya device for temporarily
capping a tubing, ypipe„conduit, Yorthe like. -‘The
de'vice‘includes a fabric member 5 having an
adhesive surface S, and the member in the illus
trated instance is shaped generally in the form
of a Maltese cross. This member may be made
of any suitable material, but is preferably of a
rather "substantial fabric of the character com
monly used in the manufacture of the commonly
known adhesive tape employed for surgical pur-V
poses. Also, the member may be of the character
of the so-called “Scotch” tape insofar as the
adhesive surface is concerned. In any event, it
is desirable that the member should‘have an ad
hesive surface of the pressure sensitive type per
mitting attachment and removal. In other words,
. a non-hardening adhesive.
simply applied to the tubing and removed there-v
Preferably centrally disposed upon the adhesive '
from by hand, not requiring any apparatus for 50 member and held thereto `by attachment to the
this purpose.
adhesive surface E is a disk 1 which may be of any
A further object of the invention is the pro
suitable material, but which is preferably of a
» vision of means for temporarily cappingtubing,
. relatively stiff material, compressed ñbre being
which means are eiñcient in operation, easily
‘ a satisfactory substance.
disk is of a size
applied, and sufficiently economical to warrant essb to nt neatly within the end This
of the tubing or con
discarding after a single usage.
duit to be capped, and it will be understood that
various sized capping devices will be used for vari
protect internal threads and prevent the intro
duction into the tubing of any foreign matter
between operations on the tubing and prior to
the time it is ñnally installed in the mechanism
with which it is to be associated. Further, it
lincludes a length of tubing 8 to one end of Which
will beV appreciated that the capping is extremely
ous sizes of tubing or conduit.
In Figure 3, merely by Way of illustrative ex
ample, a conduit arrangement is shown which
a sleeve 9 and a connection member such as a
bushing l0 or the equivalent` is attached.
device of Figures l and 2 may be used to cap the
structure of Figure 3 by placing the disk 1 in the
opening at the end of the bushing I6, and then
folding the arms of the cross-shaped device down
over the nut portion of the bushing as clearly
shown in Figure 4. It Will be noted that in this
folding process certain overlapping portions at
the side edges of the arms of the cross-shaped
device will occur as indicated at ll so that there
economical to use, no tools being necessary to
manipulate the capping devices, and the devices
themselves are sufficiently economical to Warrant
discarding after a single usage. Further, the con
struction of the capping device is such as to make
it function to a considerable extent as a tell-tale
in the event of unauthorized tampering with the
It will, of course, be understood that various
details of construction may be varied through
a Wide range without departing from the prin
will be a complete coverage of the end of the con-V
ciples -of this invention and it is, therefore, not
duit or tubing as far back as the skirt of the at«`
thepurpcse to limit the patent granted hereon
tached device extends. VWhen it is desired to re-`
otherwise than necessitated by the scope of the
move the capping device, it is a simple expedient 20
appended claims.
to pull up the arm portions of the device and rip
I claim as my invention:
or jerk it off the end of the conduit. The device
l. A device for temporarily capping tubing, in
may be discarded after a single usage, owing to
cluding a sheet of material having an adhesive
its economical construction.
surface for application directly to the tubing over
When working upon a tubing, pipe, or the 25 the end of a length of tubing, and a relatively
equivalent, the tubing naturally will be moved
stiif disk carried by said sheet for insertion in
from place to place in the factory for different
the end of the tubing When the sheet is applied.
operations,l or from factory to factory possibly,
2. A device for temporarily capping tubing, in
before the manufactured piece of tubing «is ulti
cluding a flexible piece of material having a pres
mately and finally installed in a mechanism such
sure sensitive adhesive surface, and a member
as an internal combustion engine, for example.
for disposition across theA opening in said tubing,
The tubing- is capped first when made, then
said member being carried on said adhesive sur
capped again when it is cut into the desired
lengths, possibly capped when it is shaped, and
3. A device for temporarily capping tubing, in
capped each time additional fittings are added to
cluding a piece of fabric having a surface of tacky
it, so that Whenever the tubing is not being
non-hardening adhesive for disposition over the
worked upon, both ends of it are covered with a
open end of a length of Atubing, and a plug for
thevend of the tubing in the form of a pressed
It Will be noted that in View of the tacky ad
fibre disk attached to said adhesive surface.
hesive surface on the capping device, it would be
4. A .device for temporarily capping tubing, in
difficult to remove the device and then replace it
cluding a flexible piece of material having a pres
exactly as it .Was'before without leaving some
sure sensitive adhesive surface, said piece of ma
trace of tampering.
terial being shaped generally in the form of a
If so desired, a capping device may be used
Maltese cross with legs ofY sufficient Width that
repeatedly until the adhesive surface thereof has 45 they will overlap each other when folded over
been rendered ineffective to an unsatisfactory
the outside surface` of a piece of tubing with the
extent, andthe »devices may be provided with
end of the tubing in a substantially central loca
some identifying indicia on the outer surface, if
’ tion with respect to. the piece of material, and a
From the foregoing, it is apparent that I have 50 member carried by said piece of material for dis
position acrossthe end of the tubing.
provided novel means for capping tubing and
the like. It Will be appreciated that the capping
means when in place on the tubing effectively
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