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Патент USA US2140777

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Dec. 2-0, 1938._
H. L. c. WENK. JR
2,140,777
BAG SEAL
Filed Aug. 12, 1938
-
INVENTOR.
19222911 6.772722f, ('75:,
'
BY
'
ATTORNEY.
2,140,777
Patented Dec. 20, 1938
UNITED STATES PATENT» OFFICE
2,140,’? 77
BAG SEAL
Henry L. C. Wenk , Jr., Jamaica, N. Y.
Application August 12, 1938, Serial No. 224,469
5 Claims. (Cl. 292—308)
rl‘rhis invention relates to improvements in bag
seals of the type provided with a deformable lead
seal body to engage and secure a tie cord ar
ranged to encircle the gathered neck of a bag
so as to close the mouth of the same against
unauthorized access to the bag content.
i)
Bag seals of the kind to which this invention
has reference are extensively used by banks, post
of?ces, express companies and others to inviola
10 bly enclose money, valuables and the like.
In the use of such bag seals, once a seal is op
eratively applied to a bag it cannot be removed
therefrom except by severing the tie cord there
of. In the operation of cutting the tie cord
15 which, as operatively encircling the neck of the
bag, closely hugs the bag material, there is
always risk that the bag material will be gashed,
thus destroying the future usefulness of the bag.
This is objectionable since, in practice, the bags
are otherwise intended to be used over and over
again.
It is an object of this invention to provide, in
combination with a bag seal of the kind men
tioned, novel means which will support the tie
cord in such manner as to ef?ciently back the
same against a cutting operation, while at the
same time so localizing and guiding the cutting
action as to prevent any contact of the cutting
knife with the material of the bag, thus eliminat
ing all risk of gashing the bag and destroying its
future usefulness; furthermore, the novel means
serving such functions, is designed additionally
to both retain the bights of the tie cord, which
operatively encircle the bag neck, under strong
restrictive tension, whereby the same can not be
stretched and loosened or shifted along and off
the bag neck, while at the same time providing
means to quickly part the bights when the same
I):
are severed or partially severed, so that the tie
40
cord quickly and easily releases itself and the
seal body from the bag when authorized opening
of the bag is desired.
Other objects of this invention, not at this
time more particularly enumerated, will be
' understood from the following detailed descrip
tion of the same.
An illustrative embodiment of this invention is
shown in the accompanying drawing, in which:
Fig. 1 is a side view of a bag closed and sealed
= '. by the operative application thereto of a seal
made according to this invention; Fig. 2 is an
enlarged face view of the novel seal structure
per se, and Fig. 3 is a transverse sectional View,
taken on line 3-3 in Fig. 2.
55. Fig. 4 is an enlarged sectional view, taken on
line 4—4 in Fig. 1, showing the novel seal as
applied to a bag neck in closing and sealing rela
tion thereto; Fig. 5 is a similar view, showing
the effects of a ?rst cutting operation when re
moving the seal from the bag; and Fig. 6 is a
similar view showing the effects of a ?nal cutting
operation when removing the seal from the bag.
Similar characters of reference are employed
in the above described views to indicate corre
sponding parts.
10
Referring to the drawing, the reference char
acter Ill indicates a seal body, the same being
ordinarily made of lead or like relatively soft and
easily deformable metal capable of being crushed '
and corrugated so as to immovably aflix the same
to its associated tie cord. Initially formed in
said seal body in are longitudinally extending tie
cord receiving passages or openings, usually com
prising a pair of inner openings H and a pair of
outer openings l2; said openings being suitably
relatively spaced apart.
20
Associated with the inner or bag abutting end
of said seal body ill, to extend longitudinally and
axially therefrom, is a compression spring sleeve
E3 of spirally helical form, and preferably of
frustro-conical shape, with~ its ‘smaller end
abutted, and, if desired, affixed, to said inner end
of the seal body, so that its larger end, in use,
will bear against the gathered and closed neck
30
of a bag to which the seal is applied.
Operatively related to said seal body Ill and
the spring sleeve I3 is a tie cord arranged to
provide a pair of connected bag encircling loops
i4 and E5, the respective inner branches of which
are formed by the respective free end portions l6
and ii of said cord, which extendv through the
interior of said spring sleeve l3 and thence
through the inner openings H of the seal body
it to project freely from the outer end of the
latter, while the outer branches l8 and E9 of said
loops pass exteriorly along said spring sleeve l3
and thence through the outer openings E2 of the
seal body Iii, being connected by a bight 28 ex
tending between the outer ends of said openings
12 and across the outer end of said seal body ill.
In operatively applying the seal to a bag 2|,
the neck 22 of the latter is gathered and con
stricted to close the mouth thereof. When the
bag is thus closed, the loops M and I5 of the
seal tie cord are engaged over the neck 22 so
as to encircle the same, with the spring sleeve
l3 abutting a side of the gathered and closed
neck 22. When the tie cord loops are thus posi
tioned and engaged relative to the bag neck 22,
the free ends of the tie-cord are pulled out
55
2
2,140,777
wardly from the seal body l0, thus constricting
the loops ill and i5 tightly about the bag neck,
and at the same time compressing the spring
sleeve l3 so as to close up the helices thereof and
thus place said sleeve under strong tensional con
traction (see Figs. 1 and 3). It will be obvious
that, in this operation, the branches of the
loops l4 and i5 will readily slide through the
unrestricted openings H and E2 of the seal body,
10 until the desired contraction of the loops l4 and
I5 and compression of the spring sleeve I3 is
attained. When the seal is thus operatively re
lated to the bag neck 22, the seal body it? is sub
mitted to the action of a suitable deforming press
15 or stamp, by means of which the metal thereof
is suitably compressed and crimped or corrugated
to thereby tightly close up the openings II and
i2 of the seal body so that the material of the
latter grippingly binds the sections of tie-cord
20 extended therethrough against movement rela
tive to the seal body. Preferably the seal body is
transversely bent or corrugated as shown in Figs.
1, 4, 5 and 6, thereby eifectively preventing any
tampering manipulation of the seal body with
25 intent to release its grip upon the tie cord.
The shown and described frustro-conical form
of the spring sleeve I3 is preferable, because it
provides, when closed, tie cord backing portions
which incline away from the bag neck 22 and to
ward the inner end of the seal body l0, whereby
any accidental slip of the cutting knife, when op
eratively manipulated, is de?ected toward the seal
body 10, by which it may be arrested to the pro
tection of the operator against accidentally cut
ting himself, as well as away from the bag ma
terial to the better safe-guarding thereof against
accidental gashing. While for these reasons said
frustro-conical shape of spring sleeve I3 is pref
erable, it will nevertheless be understood that, in
its broader aspects, my invention is not to be lim
ited to such speci?c form and shape of spring 15
sleeve, since many other shapes, including a sim
ple cylindrical shape, may be employed and will
attain the essential advantages of my invention.
Having thus described my invention, I claim:
20
1. A bag seal comprising, a deformable seal
body having tie cord passages, a tie cord extend
ing through said passages so as to form con
strictive bag neck encircling loop means extend
ing from the inner end of said seal body, and a
tensionally compressible means projecting from 25
Owing to the compression of the spring sleeve
l3 intermediate the bag neck 22 and the crimped the inner end of said seal body to abut an en
seal body [0, a strong tensional stress is exerted gaged bag neck, portions of said tie cord loop
therebyupon the bag neck encircling loops of the means being disposed to extend exteriorly over
30 tie-cord, by reason of which stretching, loosen
said latter means from said seal body.
30
ing or shifting of said loops relative to the bag
2. A bag seal comprising, a deformable seal
neck is impossible of attainment. Furthermore, body having tie cord passages, a tie cord extend
both stretch and contraction of the tie cord, due ing through said passages so as to form constr'ic- ‘
to changes of atmospheric or like conditions to tive bag neck encircling loop means extending
which it may be exposed, is efdciently compen
from the inner end of said seal body, and an
sated by the tensional stress of the spring sleeve axially compressible spring sleeve foo-ted upon
l3 as operatively interposed between the bag neck the inner end of said seal body to abut an en
22 and seal body ll].
gaged bag neck, portions of said tie cord loop
When it is desired that the bag be opened under means being disposed to extend from said seal
authorized conditions, the authorized operator body exteriorly over said spring sleeve.
may do so by severing the loops l4 and i5 of the
3. A bag seal comprising, a deformable seal 40
tie cord by operatively applying the cutting edge body having tie cord passages, a tie cord extend
of a knife thereto. Such cutting operations are
greatly facilitated by reason of the presence of
45 the contracted spring sleeve l3 which not only
provides a backing for the tie cord sections to
which the knife is applied, but also serves as an
interposed guard between such tie cord sections
and the material of the bag, so that accidental
cutting or gashing of the bag material'during the
tie cord severing operations is e?iciently guarded
against. To sever the tie cord, the operator ap
plies his knife against a section of the cord which
overlies the exterior side of the spring sleeve 13.
Since the helices of said spring sleeve are closed
together by the compression of the latter, the
sleeve is thus readily adapted to provide both a
cord backing and bag material guard interme
diate the cord and bag. Assuming the operator
cuts ?rst through the branch [9 of loop IS, in
such case release and partial tensional expansion
of the spring sleeve l3 aids in parting this branch
I9 so as to cause the loop l5 to open up- (see
Fig. 5). Loop l5 being thus opened, the operator
thereupon next cuts through the branch l8 of
loop l4, whereupon said spring sleeve l3 being
wholly released for reactive expansion, the oc
currence of such expansion immediately causes
the loops l4 and I5 of the tie cord to fully relax
and open out, so that the seal and its tie cord is
automatically caused to spring away from the
bag neck and drop therefrom, thus releasing the
bag neck so that the mouth of the bag may be
thereupon opened and the contents of the bag
removed.
ing through said passages so as to form constric
tive bag neck encircling Ioop means extending
from the inner end of said seal body, and an
axially compressible spirally helical spring sleeve 45
of frustro-conical form having its smaller end
abutting the inner end of said seal body and its
larger end adapted to abut an engaged bag neck,
portions of said tie cord loop means being dis
posed to extend from said seal body over the di 50
vergent exterior sides of said spring sleeve.
4. A bag seal comprising, a deformable seal
body having longitudinally extending outer and
inner pairs of tie cord passages, a tie cord hav
ing its free end portions extending through said 55
inner seal body passages, said tie cord being ar
ranged to provide constrictive bag neck encir
cling loop portions having connected outer
branches respectively extending through said out 60
er seal body passages, and an axially compres
sible spring sleeve footed upon the inner end of
said seal body to abut an engaged bag neck, said
free end branches of the tie cord loops being dis
posed to extend interiorly through said spring 65
sleeve from said seal body and the outer branches
of said tie cord loops being disposed to extend ex
teriorly over said spring sleeve from said seal
body.
'
5, A bag seal comprising, a deformable seal 70
body having longitudinally extending outer and
inner pairs of tie cord passages, a tie cord having
its free end portions extending through said in
ner seal body passages, said tie cord being ar
ranged to provide constrictive bag neck encircling 75
2,140,777
loop portions having connected outer branches
respectively extending through said outer seal
body passages, and an axially compressible spiral
ly helical spring sleeve of frustro-conical form
having its smaller end abutting the inner end of
said seal body and its larger end adapted to abut
an engaged bag neck, said free end branches of
,
3
the tie cord loops being disposed to extend in
teriorly through said spring sleeve from said seal
body and the outer branches of said tie cord loops
being disposed to extend from said seal body over
the divergent exterior sides of said spring sleeve. 5
HENRY L. C. WENK, JR.
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