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Патент USA US2105524

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Javn.._l8, 1938.
I 2,105,524.
Filed May 7, 1957
Patented Jan. 18, 1938
Emil Dietze, Richmond Hill, N. Y., assignor to
American Casting & Manufacturing Corpora
tion, Brooklyn, N. Y., a, corporation of New
Application May 7, 1937, Serial No. 141,261
3 Claims. (Cl. 292—315)
This invention relates to improvements in seals advantages by which seals of this general kind
for preventing unauthorized opening of boxes commend themselves in use.
or receptacles the covers of which are fastened
Other objects of this invention, not at this
in closed position by means of cooperating hasp time more particularly enumerated, will be un
and staple elements.
derstood from the following detailed description 5
“Seals of the kind mentioned are applied of the same.
through the staple to overlie the outer face of
An illustrative embodiment of this invention is
the hasp through which the staple projects. The shown in the accompanying drawing, in which:—
seal is usually made of generally circular but
Fig. 1 is a face view, Fig. 2 a top edge view, and
10 discontinuous conformation, and is provided at Fig. 3 is a side edge view of a hasp seal made
one side with a permanent lateral enlargement according to the present invention; and Fig. 4
‘of a width exceeding the internal dimensions of is a transverse sectional view of the same, taken
the staple opening, and at the other side with on line 4—-4 in Fig. 1.
a deformable portion initially of a width sized
Fig. 5 is a front elevation of the hasp and staple
to readily pass through the staple opening, but portions of receptacle to which the novel seal 15
adapted to be deformed or laterally enlarged by of this invention has been applied and impressed;
‘a suitable tool or press, after it is passed
through the staple opening, so that its width
is increased to a dimension exceeding the in
ternal dimensions of the staple opening, where
by it cannot be drawn back through the latter
and thus disengaged from sealing relation to the
engaged hasp and staple. Seals of this type are
expected, when once operatively applied to an
assembled staple and hasp fastening means, not
to be removable except by breaking and thus
destroying the same, whereby, when once re
moved, the same cannot be again used.
It has been found that in some instances seals
30 of the kind above described can be violated by
Mbending and folding or doubling the same upon
themselves without removing them from the
staple, and thereupon forcing the doubled or
folded together portions through the slot of the
35 ‘hasp element by prying the latter off of the
staple and over the doubled or folded seal parts.
Under such circumstances the receptacle could
be surreptitiously opened, its content stolen,
-. and thereupon the hasp could be forced back
40 over the doubled or folded seal and onto the
again, and the seal thereafter be un
and ?attened back to normal initial
so that little evidence of the tampering
appear, and might easily be overlooked
.unless a very critical inspection and examina
tion of the seal were made.
It‘ is'an object of the present invention to pro
‘ vide a seal of the general type and‘kind above
‘described, but ‘so improved in form andstruc
ture that adequate safeguards against tamper
ing and possible violation by folding or doubling
or like surreptitious manipulation is afforded,
while yet retaining all the advantages of ease
55 of initial application, simplicity of form and like
and Fig. 6 is a side elevation of such assembly.
Fig. 7 is a front elevation similar to that of
Fig. 5 but showing the seal doubled or folded on
itself with its parts back to back, this view illus
trating the futility of this method of manipula
tion in attempting to violate the seal by forcing
the slot of the hasp thereover; and Fig. 8 is a
similar view showing the seal doubled or folded
on itself with its parts face to face, this view
showing the futility of such method of manipu
lation in attempting to violate the seal by forc
ing the slot of the hasp thereover.
Similar characters of reference are employed
in the above described views, to indicate corre
sponding parts.
In the drawing, the reference character I in
dicates a receptacle having a forwardly project
ing staple 2. The open top of the receptacle is
closed by a cover 3 with which is suitably con- ;
nected a hasp 4, the latter having a slot 5 to
engage over the staple when the cover is closed
and secured. The receptacle and cover with the
cooperating staple and hasp elements, as shown,
is merely illustrative of one of many forms there 40
of to which the seal of the present invention may
be applied, and consequently is subject to con
siderable variations as to specific construction
and as to the use to which it may be put, and
as to devices with which it may be associated.
The seal of this invention is applied to the
staple and hasp elements to prevent unauthorized
separation thereof and consequent opening of
the receptacle for unauthorized access thereto.
The seal device is used in place of a padlock, 01 O
cross-pin or like means usually employed to se
cure the staple and hasp against separation.
In an illustrative and preferred form thereof,
the seal according to this invention comprises
a unitary body formed from sheet metal, e. g. 55
steel, and is of substantially circular but dis
inspection of Figs. 7 and 8 of the drawing. If,
continuous form so that a gap @ is provided be
for example, the seal arms are bent across the
tween opposed terminal portions ‘l and 8 thereof.
weakened portion 9 by which they are joined, so
The gap 6 is of sufficient width to permit in- . as to fold the seal and bring the arms back to
back, as shown in Fig. 7, the transverse stop
shoulder 51 at the inner end of the guard ?ange
l5 of seal .arm it will be disposed crosswise of
a point diametrically opposite the gap 6 the seal
the hasp slot 5, and will immediately arrest any
ward passage therethrough of a leg of the staple
2, whereby the seal may be inserted through the
eye of said staple so as to hang therefrom.
movement of the hasp over the thus folded seal
body is provided with a reduced or weakened por~
10 tion 9 formed by an internal indentation or ~ arms, and consequently such an attempt to
notch H3. Extending in opposite directions from violate the seal will be fruitless. On the other
said weakened portion 9 are the substantially . hand, if the seal arms are folded together so as
semi~circular arms H and I2 of the seal body. to bring the same face to face, the stop-nosing I6
The arm 8! is so shaped, initially, as to possess of the guard ?ange l5 associated with the arm
IE‘ will abut the inward part of the concave 15
15 a concavo-convex shape in cross section at the
portion l3 thereof lying between the weakened conveX portion it of the arm H so as to obstruct
portion 9 and the terminal portion "1.. Said arm
ll, as thus formed, is of an initialuniform width
throughout its extent somewhat less in dimension
20 than the size of the eye of staple 2.
. The
preferably‘ uniformly
throughout its extent, but is provided inter
mediate the weakened portion 9 and the terminal
8 with an outwardly extending laterally widened
25 part forming a stop-portion It of 'a width ex
.ceeding the size of the eye of staple 2. In
tegrally formed in connection with the inner
curved margin of said arm E2, to stand upright
or at right angles to the face plane of the latter,
30 is a general flange 95. Preferably this guard
?ange is widened at its inner end to form a
laterally projecting stop-nosing is adjacent to
such inner end, and the end itself provides a
stop shoulder ll transverse to the plane of the
and prevent the meeting of the front faces of said
arms, and consequently the width of the forma
tion will not be reduced suf?ciently to allow the
slot 5 of the hasp 4! to be stripped thereover (see 20
‘Fig. 8) ,' and consequently such attempt to violate
the seal will likewise be frustrated. Owing to
the fact that the guard ?angev I5 is curvilinear
in vertical plane, since it projects from the inner
and substantially semi-circular margin of the arm}
l2, it is quite impossible to ?attendown the same
smoothly into the plane of the seal body, and
consequently such method of attempting to bring , .
the seal arms in ?at folded together relation can
not be successfully resorted to.
When it is desired, by an authorized person, to
open the receptacle which is guarded by the seal,
the arms 5 i and I2 are grasped and spread apart,
and the seal so manipulated ‘as to break the arms
seal. Said guard ?ange i5 preferably tapers
apart at the weakened central'portion 9 between 35
from its inner end toward its outer end, although
the arms.
thisis not essential.
destroys it so that it cannot be used 'again.
This not only removes the seal, but
In applying the seal to the receptacle, after
When the receptacle is again closed and secured,
the hasp 4: is engaged over the staple 2, the arm
40 H is inserted through the eye of the staple,
whereby the seal is suspended from the latter
with one arm, as l I, depending at one side of the
staple, and the other arm, as 12, depending from
the opposite side of the staple (see Fig. 5).
After the seal is thus inserted through the
staple 2 exteriorly of the hasp 13, a suitable press
is applied to the concave-convex section It of
the arm M, and by the press action a portion of
a new seal must therefore be applied in guarding
said concave-convex section it is crushed down
50 or deformed so as to be ?attened and widened
out, as shown at is in Fig. 5.
The ?attened and
. widened part 58 provides a stop-section, the width
of which exceeds the internal sizeof the eye of
relation to the staple and hasp.
Having now described my present invention, I
1. A seal for extension through a staple and.
exteriorly of a slotted hasp closed over said staple
comprising, a body having arms extending in a;_45
common plane but in opposite directions from an
intermediate portion thereof, one of said arms
having an outwardly extending widened section
in the plane thereof to prevent passage of said
arm through the staple eye, the other of said,
arms being of an initiallwidth adapted to pass
through the staple eye, said latter arm having
intermediate its ends a deformable portion
adapted to be pressed to provide a widened stop,
the staple, and consequently obstructs any at
tempt to withdraw the seal arm I l back through
portion to prevent retraction thereof through the,
the staple eye so as to remove the seal from the
staple eye, and said ?rst mentioned arm having a
The stop-portion i it formed in connection guard ?ange extending along its inner margin
with seal arm 82, being wider than the internal and projecting angularly from the plane .of said
~ staple.
size of the staple eye, inlike manner obstructs
60 any attempt to draw outwardly from the staple
eye said seal arm l2, thus preventing removal of
the attached seal in such manner.’
» As hereinbefore stated, it has been attempted
to violate seals of the general type here involved,
by bending and folding together the two semi
circular arm parts thereof, and then prying up
the hasp in such manner as to force the slot 5
of the latter over the thus folded arm parts, thus
freeing the hasp from the staple. Attempts to
so violate the seal of the instant invention will
70 be quickly frustrated, as will be obvious from an
,2. A seal as de?ned in claim 1 wherein said 60
guard: ?ange terminates at one end in a stop
shoulder disposed adjacent to the intermediate
portion of said seal body, said stop shoulder ex
ceeding in dimension the width of the hasp slot.
3. A seal as de?ned in claim 1, wherein said
guard ?ange terminates at one end in a stop
shoulder disposed adjacent to the intermediate
portion of said seal body, and said ?ange having
an outwardly projecting stop-nosing. at the
juncture of its free edge and said stop shoulder.
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