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Патент USA US3088662

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May 7, 1963
w. P. VSWARTZ, JR
3,088,653
ENVELOPES
Filed July 20, 1961
_______Z_
25v
35
BY
I
'
53am
ATTORNEYS
tinned States Patent
166
1
3£88?53
Patented May '7, 1963
2
This invention also has ‘for an object the provision of
3,088,653
a blank shaped and formed in such a manner that it can
William P. Swartz, Jr., P.0. Box 22, Roanoke, Va.
Filed July 20, 1961, Ser. No. 125,509
be assembled into an envelope which will permit the
easy and rapid loading of material into the envelope.
Other objects and advantages of the present invention
ENVELOPES
9 Claims. (Cl. 229-—68)
This invention relates generally to envelopes and blanks
for forming envelopes.
will become apparent to those skilled in the art, from the
following description when read in conjunction with the
accompanying drawing, wherein:
More particularly, this invention relates to an envelope
FIGURE 1 is a plan view of the blank which is utilized
and a blank for making the envelope which will cooperate 10 to form the envelope according to the present invention;
with the modern type of loading machines in an assembly
FIGURE 2 is a view of the rear of the envelope in set
line fashion, to permit the rapid opening of the envelope
up or assembled form;
for insertion of various articles in the interior of the en
FIGURE 3 is a sectional view taken along lines 3-3 of
velope.
FIGURE 2, showing in addition a ?nger of a conven
In the course of many business operations there is the 15 tional loading machine moving towards the throat open
requirement for inserting’advertising literature and circu
1118;
lars within an envelope to be used for mailing to cus
FIGURE 4 is a ‘sectional view similar to FIGURE 3,
but showing the carnming action of the abutment means
There is a need of long standing, for an envelope to hold
on the rear sheet of the envelope as the ?nger of the lead
the various circulars and advertising media which can 20 ing machine moves into the throat of the envelope;
be stu?ed or inserted into the envelope quickly and
FIGURE 5 is a sectional view of the envelope ‘after the
easily by the new type loading machines which have
envelope is closed by the securing means provided through
?ngers which slide toward the throat of the envelope for
the outside of the envelope;
the purpose of opening the throat of the envelope to re
FIGURE 6 is a sectional view similar to FIGURE 3,
ceive various pamphlets and circulars. Since speed is 25 but showing the score lines in relation to the abutting
one of the absolute requirements in an envelope stu?ing
panel and the end panel more clearly.
procedure, it has been found that the previously known
Briefly, the present invention provides for an envelope
envelopes did not permit the rapid opening of the throat
and a blank forming the envelope, which includes an abut
of the envelope by the insertion of the usual ?ngers, and
ment panel that is connected to the rear panel adjacent the
as a matter of fact, very often the envelope would not be 30 throat of the envelope, such that the ?ngers of the loading
opened to any degree, for the reason that the ?ngers of the
machine, when in contact with the back of the front sheet
loading machine would either pass over the rear sheet
and moving towards the throat, will cam the rear sheet
which forms a part of the throat of the envelope, or
upwardly to provide the necessary opening of the throat
would engage the edge of the rear sheet at the throat to
for the insertion of pamphlets and circulars into the
tomers and potential customers of the particular business.
crush or otherwise dis?gure the edge of the rear sheet, or 35
envelope.
else push the entire envelope out of position, such that
the pamphlets and circulars could not possibly be in
serted into the throat.
Further, it is important that the throat when open has
a substantially ?attened oval opening, that is, when the
Additionally, the present invention provides an end
panel which is hingedly secured to the abutment panel,
thus permitting the envelope to be more securely closed
?ngers are inserted into the throat the rear sheet should
not buckle to form a high peak at the center of the throat,
the opening of the throat of the envelope and impede
the insertion of material into the envelope having sub
as well as to aid in preventing the peaking of the rear
sheet along its center in such a manner that would limit
because by forming such a peak the outer edges of the
stantially the same size as the throat when in an at rest
throat will be diminished to the extent that very little
material can be inserted into ‘the throat opening. More 45
position.
over, the loading of the ideally constructed envelope must
be followed by a satisfactory closure which is easily
shown in blank form in FIGURE 1 and in a set up con
openable.
The envelope ltl, according to the present invention, is
dition in FIGURE 2. The envelope 10 includes a ?ront
sheet or panel 12 and a rear sheet or panel 14. The
front and rear sheets are preferably hingedly connected
Consequently, it is an important object of the present
invention to provide an envelope which may be easily 50 by a vfold line, as shown at 16. Side panels 18 and 20
opened at the throat by the ?ngers of modern loading
are provided and can be secured along the side edges 22
and 24, respectively, of the front sheet 12, as shown on
machines to facilitate the insertion of circulars, adver
tising media, and the like into the envelope.
the rear sheet. Each of these side panels is provided with
Another object of the present invention is the provision 55 suitable ‘adhesive or gluing means 26 ‘for adhering to the
of means on the envelope at the throat which will direct
face of the rear sheet 14, as shown when folded along
line '16.
the ?ngers of the loading machine into the throat of the
envelope, to permit the opening of the throat.
It is to be understood that the envelope, according to
It is another object of the present invention to provide
FIGURE 2, could easily be vformed from a blank having
means on the envelope which will prevent the buckling 60 a somewhat dilferent arrangement, which would be ob
or distortion of the throat opening of the envelope, such
vious to one skilled in the art of envelope making. For
as will prevent the insertion into the throat of a plurality
instance, the rear sheet 14, along side edges 28 or 30,
of pamphlets having substantially the width of the throat
could be hingedly attached to the front sheet '12 at either
when in the closed position.
of its side edges 22 or 24.
It is a further and more particular object of the present
One of the important aspects of the present invention is
65
invention to provide an abutment means at the throat
the abutment panel 32, which is hingedly connected for one
opening of the envelope which is designed to cam the
‘way pivotal movement by a score or hinge line 34. The
rear sheet of the envelope upwardly to direct the ?ngers
score line 34 permits the abutment panel 32 to pivot only
of the loading machine into the throat opening.
in the direction away from the front sheet '12, ‘or in other
A further object of the present invention is to provide 70 words solely above the plane of the rear sheet. The
means for closing the envelope in such a manner that it
score line is made on the under side of the rear panel 14,
can be readily re-opened.
in the view of FIGURE 1. Thus, the abutment panel in
3,088,653
normal position will raise slightly at an angle from ?ront
sheet 12 when in an assembled condition. The depth of
the abutment panel 32, as measured in a direction to
wards the ‘bottom of the envelope when ina set up con
dition, or as shown in FIGURE 1 in a direction towards
fold line 16, must be at least 1%; of an inch, and generally
need not be more than 1/2 an inch. The preferable depth
is approximately 14; of an inch.
Secured to the abutment panel by a score line 35,
similar to 34, is an end panel 36, ‘which pivots in a man 10
ner similar to abutment panel 32, and thus generally will
be folded back towards the rear sheet to a somewhat
4
Thus, the abutment panel and the score lines serve the
dual purpose of camrning the rear sheet 14 upwardly, as
well as maintaining the throat opening relatively ?at and
elongated.
From the foregoing detailed description it will be evi
dent that there are a number of changes, adaptations, and
modi?cations of the present invention which come within
the province of those skilled in the art. However, it is
intended that all such variations not departing from the
spirit of the invention be considered as within the scope
thereof as limited solely by the appended claims.
I claim:
greater degree than the abutment panel 32.
FIGURE 3 shows the usual “at rest” position of the
1. An envelope comprising a front panel and a rear
angle a in ‘FIGURE 3. According to an important aspect
of the present invention, the score lines 34 and 35 form a
nected to said rear panel ‘for pivotal movement of said
resist the peaking of the rear sheet such as would unnec
cover panel having a depth greater than the sum of the
panel, said panels being mutually attached to form closed
envelope as one in which ‘the abutment panel 32 makes an 15 edges and a throat, an abutment panel extending substan
tially the length of the throat and being hingedly con
acute angle with the front sheet 12, indicated by the
abutment panel solely above the plane of the rear panel,
an end panel of greater depth than said abutment panel
stabilizing or stiffening means along with the abutment
panel which tend to prevent the distortion of the throat 20 hingedly connected to said abutment panel remote from
said rear panel, a cover panel hingedly connected to said
by the ?nger F of the loading machine (not shown), that
front panel and extending the length of said throat, said
is, the abutment panel and score lines 34 and 35 tend to
essarily pull in the sides of the envelope and thereby re—
depths of the abutment panel and the end panel, whereby
25 the fingers of a loading machine in moving contact with
duce the width of the throat.
said rear panel toward the throat will release said abut
The ‘front panel 12 is provided with a closure panel 38
ment and end panels for upward pivotal movement to
by means of a score line 40 impressed in the side of the
position said abutment panel to insure opening the throat
front sheet 12, shown in FIGURE 1. The closure panel
upon movement of the ?ngers toward said rear panel.
38 may be connected to the front panel 12 lby a single
2. The envelope of claim 1 wherein the cover panel
score line, as shown at 46, or a double score line spaced
includes a hinge line between and parallel to the hinge
apart the same distance as the score lines 34 and 35. The
line formed between the front panel and the cover panel,
reason ‘for the double score line is that the scoring may
said hinge line forming a panel on the side of said cover
take place when the rear panel 14 is superimposed over
panel hinge line adjacent said front panel of substantially
the front panel 12. In this manner all the scoring neces
sary at the throat of the envelope may be accomplished 35 the same size as the abutment panel.
3. The envelope according to claim 1 wherein the
at one time.
abutment panel makes an acute angle with said closure
In FIGURE 5 there is shown a closure means in the
panel.
form of a staple 421, which has been rfound to be prefer
4. The envelope according to claim 1 wherein staple
able in that it will impale the closure panel 38, the end
panel 36, as well as the vfront and rear panels '12 and 14, 40 securing means impale the closure panel over the end
panel and the front and rear panels.
respectively. It can be seen from FIGURE 5 that the
5. An envelope comprising a front panel and a rear
‘depth of the end panel 36, in addition to'the depth of the
panel, said panels being mutually attached to form closed
abutment panel 32, is less than the depth of the closure
edges and a throat, an abutment panel of at least one
panel '33, primarily for the reason that the end of the
closure panel 33 at 44 provides a lifting tab means which 45 eighth (14;) inch depth extending substantially the length
'of'the throat and being hingedly connected to said rear
readily permits the opening of the envelope after the en
panel for pivotal movement of said abutment panel solely
velope has been closed as by staples 42. The end panel
above the plane of the rear panel, an end panel of greater
36 should be at least 3%; inch in depth, but the sum of the
depth than said abutment panel hingedly connected to said
depth of the end panel and abutment panel must the less
than the depth of the closure panel 38 by approximately 50 abutment panel remote from said rear panel for pivotal
movement of said end panel solely above the plane of
V2 inch.
said rear panel, a. cover panel hingedly. connected to said
The envelope as used is clearly shown in FIGURES 3
front panel and extending the length of said throat, said
and 4, wherein a ?nger F of the conventional loading
cover panel having a depth greater than the sum of the
machine is shown moving towards the throat of the enve
lope and in contact with the face of the closure panel 38. 55 depths of the abutment panel and the end panel, whereby
the ?ngers of a loading machine in moving contact with
Upon contact of the ?nger F with the abutment panel 32,
said rear panel toward ‘the throat will release said abut
the rear sheet 14 will be cammed upwardly to permit en
ment and end panels for upward pivotal movement to
trance of the ?nger F into the envelope. The ?nger, be
position said abutment panel to insure opening the throat
cause of this abutment panel, cannot slide over the rear
sheet 14, nor can it crush or dis?gure the rear sheet.
60 ~upon movement of the ?ngers toward said rear panel.
6. An envelope comprising a front panel and a rear
At this time one of the signi?cant aspects of the present
panel, said panels being mutually attached to form closed
invention, namely, the score lines 34 and 35 in combina
edges and a throat, an abutment panel of at least one
tion with the abutment panel 32, provide a sti?ening
means which will not permit the rear sheet to bow or
eighth (1A2) inch depth extending substantially the length
peak upwardly nor permit the sides of the envelope to 65 of the throat and being hingedly connected to said rear
panel for pivotal movement of said abutment panel solely
‘converge unnecessarily to unduly reduce the width of the
above the plane of the rear panel, an end panel having
‘throat. Thus, the rear sheet 14 at the throat opening of
a three-quarter (34) inch minimum depth, hingedly con
the envelope will provide a substantially ?at or level pro
nected to said abutment panel remote from said rear
?le, thereby permitting the insertion of a number of cir
culars or pamphlets of advertising media M of approxi 70 panel for pivotal movement of said end panel solely above
the plane of said rear panel, a cover panel hingedly con
mately the same or only slightly less width compared to
nected to said front panel and extending the length of
the throat opening. Without the score lines 34 and 35
said throat, said cover panel having a depth greater than
and abutment panel 32, the rear sheet 14 would bow up
wardly‘in a peak, which would greatly limit the opening
the sum of the depths of the abutment panel and the end
of the throat along the side edges adjacent lines 22 and 24. 75 panel, whereby the ?ngers of a loading machine in mov
3,088,653
5
5
ing contact with said rear panel toward the throat will
connected by a second score line inwardly directed similar
to said ?rst score line to said abutment panel along a
release said abutment and end panels for upward pivotal
movement to position said abutment panel to insure open
fourth edge parallel to said third edge, said end panel
ing the throat upon movement of the ?ngers toward said
having a depth substantially greater than the depth of
rear panel.
5 said abutment panel, and said closure panel having a depth
7. An envelope comprising a front panel and a rear
substantially greater than the sum of the depths of the
panel, said panels being mutually attached to form closed
end and abutment panels.
9. An envelope comprising a front panel and a rear
edges and a throat, an abutment panel of at least one
eighth (1/3) inch depth extending substantially the length
panel, said panels being mutually attached to form closed
of the throat and being hingedly connected to said rear
edges and a throat, an abutment panel extending substan
panel for pivotal movement of said abutment panel solely
tially the length of the throat, a ?rst hinge line pivotally
above the plane of the rear panel, an end panel having
connecting said abutment panel to said rear panel for
a three-quarter (34) inch minimum depth, hingedly con
movement of said abutment panel solely above the plane
nected to said abutment panel remote from said rear
of said rear panel, an end panel of greater depth than
panel for pivotal movement of said end panel solely above 15 said abutment panel, a second hing-e line pivotally con
the plane of said rear panel, a cover panel hinged-1y con
necting said end panel to said abutment panel for move
nected to said ‘front panel and extending the length of
ment of said end panel solely above the plane of said
rear panel, a cover panel hingedly connected to said ‘front
said throat, said cover panel having a depth greater than
the sum of the depths of the abutment panel and the end
panel and extending the length of said throat, said cover
panel, being at least one and one-half (11/2) inches in 20 panel having a depth greater than the sum of the depths
depth, whereby the ?ngers ‘of a loading machine in
of the abutment panel and the end panel, whereby the
moving contact with said rear panel toward the throat
?ngers of a loading machine in moving contact with said
will release said abutment and end panels for upward
rear panel toward the throat will release said abutment
and end panels for upward pivotal movement to position
pivotal movement to position said abutment panel to
insure opening the throat upon movement of the ?ngers 25 said abutment panel to insure opening the throat upon
toward said rear panel.
movement of the ?ngers toward said rear panel.
8. An envelope blank having a front sheet and a rear
sheet hingedly connected at a ?rst edge, side cover ?aps
on one ‘of said sheets which ?aps are adapted to be secured
References Cited in the ?le of this patent
UNITED STATES PATENTS
to the other sheet, a closure panel hingedly connected to 30
a second edge of said front sheet, an abutment panel
hingedly connected by an inwardly directed ?rst score
433,052
Spear ________________ __ July 29, 1890
line to said rear sheet along a third edge of said rear
401,946
France ______________ __ Aug. 17, 1909
sheet remote from said front sheet, an end panel hingedly
FOREIGN PATENTS
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