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Патент USA US2128748

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Aug. 30, 1938.
2,128,748,
M. KAHN
ENVELOPE
Filed Sept. 5, 1936
E9. 5117423 22744
INVENTOR.
1%]22022
cz/zn,
Patented Aug. 30, 1938
2,128,748
UNITED STATES
PATENT OFFICE‘
2,128,748 _
ENVELOPE
Milton Kahn, New York, N. Y., assignor to
Novelart Mfg. 00., New York, N. Y., a. ?rm
Application September 5, 1936, Serial No. 99,563
2 Claims. (Cl; 229--80)
This invention relates to envelopes of the type as is also the coating borne by the underside of
wherein sealing of the envelope is performed the rear wall 3.
without requiring moistening of the adhesive sub
When it is desired to utilize and seal the en
stance, and its principal object is to provide a velope, the leading portion ll of the ?ap 5 is
5 simpli?ed, conveniently and economically manu
unfolded. or straightened ?ush with the surface 0
facturable, economically salable, conveniently 9 of the ?ap, then the ?ap portion H is passed
utilizable, strong, durable, and improved envelope through the slot 6 to a position underneath the
rear wall 3, so that its coating I0 is in registry
of this type.
'
.
Another object is to provide an envelope of with the coating 8 of the latter, and then pres
10 the above type having improved means for the sure is applied upon the rear wall 3 to ?rmly l0
normal concealment of its adhesive coats prior adhere it to the ?ap 5 through the action of the
dry adhering coatings l0, 8. It will be noted that
to the normal utilization of the envelope.
Other objects and advantages will hereinafter by virtue of the foregoing provisions of this en
velope, not only will there be no danger of its
appear.
sticking to any other paper or other envelope l5
I‘
In the accompanying drawing,
Fig. .l is a rear .view elevation of the envelope material, but its coatings l0, 8 will be both nor
of this invention, as it appears in normal state, mally concealed, to obviate exposure, catching
of dust, dirt, or other matter, or causing‘ injury
or prior to utilization and sealing.
Fig. 2 is a transverse-sectional end elevation of
20 the envelope shown in Fig. 1.
Fig. 3 is a view similar to Fig. 2, but showing
the closing flap of the envelope distended, as re
sorted to during the step of sealing the envelope.
to the coatings.
According to the modi?cation shown in Figs. 20
5 to 8, the leading portion ll of the closing ?ap
5 is inserted underneath the rear wall 3 by pas
sage at the edge l2 of the latter, whereby the
Fig. 4 is a similar view showing the envelope ' coatings l0, 8 are thus brought into registry and
the envelope is sealed by pressure upon the wall 26
25 in completely sealed state.
'
Figs. 5, 6, 7, 8 are views correspondingly similar 3 over said coatings.
Having thus described my invention, I claim:—
to the foregoing, illustrating a modi?cation of
1. A dry adhering envelope having the‘ combi:
the invention.
The envelope l comprises a usual addressing nation of a front wall, a rear wall, a closing ?ap
30 front wall 2, a rear wall 3 ?rmly glued to end forming part of said front wall folding over said 30
?aps 4 of the former wall, and a crosswise sealing rear wall, said rear wall having a slit, the under
flap 5 forming part of front wall 2 which folds surface of said rear wall having thereupon a dry
over the rear wall 3. In the" rear-wall 3 is adhering coat, the upper surface of said flap hav
formed a slot 6, and upon the underside ‘I of ing a dry adhering coat, said ?ap adapted to pass
35 said wall is provided a coating 8 of adhesive its leading portion through said slit to bring its 35
substance of a type which, whether moistened or coat into registry with said other coat, and said
unmoistened, will not stick or adhere to uncoated portion being normally folded underneath the
areas of paper, but will ?rmly stick to the same
adhesive substance forming a coating of another
40 portion of paper. Any suitable substance form
ing the coating 8 may be resorted to, such as a
solution of para rubber in gasolene, or any other
known material which will serve a similar func-
tion. Upon the upper surface 9 of the closing
45 ?ap ,5 is provided a similar area [0 of similar
dry adhering coating, and the leading portion ll
"of said flap which carries this coating is nor
mally folded underneath the ?ap proper, as clear
ly shown in Fig. 2, whereby normally the ?ap
5° portion H with its coating l0 appear concealed,
?ap to conceal its coat.
1
‘
2. A dry adhering envelope having the combi
nation of a front wall, a rear wall, a closing ?ap 40.
forming part of said front wall having a leading
portion thereof folded thereunder, the undersur
face of saidrear wall having thereupon a dry
adhering coat, the exterior surface of said leading
portion having a dry adhering coat, and said flap 45
being adapted to unfold and pass its said leading
portion underneath said rear wall to bring its
coat into registry with said other coat.
MILTON KAI-IN.
60
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