Background of the Invention
A. Field of the Invention
[0001] This invention relates to a mailer set having one or more interior plies. More particularly,
it relates to an improved design for such a mailer set in which the thumb notches
which are usually positioned directly opposite each other on opposite sides of the
mailer are repositioned such that the thumb notches are offset one from another.
B. Prior Art
[0002] In the past,-mailer sets having interior plies were separated by holding one edge
of the mailer set between the thumb and forefinger of one hand, grasping the opposite
edge of the mailer.between the thumb and forefinger of the other hand and pulling
one edge of the document away from the other. To insure that the document came apart
at the desired locations, perforation lines were judiciously located about the mailer
set:
[0003] In most of these former mailer sets, a pair of thumb shaped notches, one of which
was perforated, were positioned on opposite edges of the mailer set directly across
one from another. These notches were used as holding locations for pulling apart the
mailer. Since they were directly across from each other, the pulling force was equally
distributed along the perforation lines of the left hand thumb notch and the interior
plies, and excessive force was needed to burst the document at the perforation seams.
[0004] In fact, in many cases, the bursting or tearing occurred at another undesired location
of the mailer set.
Brief Description of the Invention
A. Objects of the Invention
[0005] Accordingly, it is an object of the present invention to provide a unique and simple
system which more easily achieves the correct bursting of the mailer set at the desired
locations.
[0006] It is another object of this invention to provide a system for applying sequential
forces along the different perforated lines rather than applying equal forces along
all of the perforated tear lines-simultaneously.
[0007] It is a further object of this invention to provide a system for bursting a mailer
set at a desired perforated line by locating a pair of thumb notches on opposite sides
of the mailer set which locations are not directly across one from another.
[0008] It is a still further object of this invention to provide a system for bursting apart
a mailer set along perforated lines which system includes a perforated left handed
thumb notch positioned in the upper left hand area of the mailer set and a right hand
thumb notch positioned approximately in the center of the right hand edge of the mailer
set.
[0009] It is another object of this invention to provide a system for sequentially bursting
apart a mailer set along a plurality of perforated lines in which a perforated thumb
notch is positioned in an off-set manner from an opposing thumb notch such that the
perforated thumb notch is initially burst apart and thereafter the perforated lines
of any interior plies are burst apart starting at the center of the perforated lines
thereof.
B. Summary of the Invention
[0010] In the preferred embodiment of this invention, a mailer set is provided which has
one or more interior plies located between a front and a back .ply. A perforated thumb
notch is positioned along the left hand edge of the mailer set in the upper portion
of that edge. Another thumb notch is positioned in the approximate center of the right
hand edge of the mailer set. All of the interior plies have a perforated line passing
down their right handed edge, which line is inboard of the right hand thumb notch.
In those instances where there are multiple interior plies, the perforated lines are
coincident one with another.
[0011] By applying opposing pulling pressure on the opposite edges of the mailer set at
the thumb notch locations, the pressure is not equally and simultaneously applied
along all of the perforation lines. Rather, unequal, sequential forces are applied
such that the perforated thumb notch bursts apart first and thereafter the interior
ply perforation lines burst starting at the center of the perforated-lines.
Brief Description of the Drawings
[0012] The foregoing objects and the summary will be more readily understood when read in
conjunction with the accompanying drawings in which:
Figure 1 illustrates a mailer set having thumb notches on opposite edges thereof as
representative of the prior art,
Figure 2 pictorially illustrates the herein proposed mailer set configuration in which
the opposite thumb notches are shown in their preferred locations, and
Figure 3 again pictorially illustrates the proposed mailer set wherein the front ply
is peeled away to reveal the snap perforation lines located on one or more of the
interior plies.
Detailed Description of the Invention
[0013] The following detailed description will be more easily comprehended when it is read
with reference to the foregoing drawings in which like reference numerals symbolize
corresponding parts.
[0014] Figure 1 pictorially illustrates the positioning of the thumb notches 12 and 14 on
the mailer set 10 as representative of the prior art. When opposing forces are simultaneously
applied to the mailer set 10 at thumb notches 12 and 14, the resulting force is equally
distributed along the interior ply perforation 26 shown in Figure 3. Because of this
equal force distribution, excessive force-is needed to simultaneously burst apart
the mailer set at the thumb notch 12 and the perforation line 26 (Figure 3) and many
times the excessive force needed to accomplish this exceeds the tearing point of other
unwanted areas of the mailer set.
[0015] Figure 2 pictorially illustrates the preferred embodiment of the present invention.
This mailer set 20 has opposing thumb notches 22 and 24 which are not directly across
one from another. That is, they are positioned in an offset manner.
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[0016] The opposed pulling pressures applied, in this instance, to thumb notches 22 and
24 obviously are not simultaneously and equally applied to the perforated thumb notch
22 and the perforated interior ply lines 26 (Figure 3).
[0017] Figure 3, which pictorially illustrates the mailer set, also shows the interior ply
or plies 28 with their respective perforated snap lines 26. It accomplishes this by
showing the mailer set with its front ply peeled back.
[0018] Again, considering a pair of opposing forces being applied to the thumb notches 22
and 24, the following bursting sequence occurs. First, the smaller perforated line
around thumb notch 22 separates and thereafter the force is applied to the center
of the perforated lines 26 of the interior plies, In this manner, excessive opposing
forces are not required and the potential for unwanted tearing is considerably reduced.
[0019] In conclusion, the prior art system has a thumb notch directly across from the snap
perforation. This causes the user to attempt to break all of the perforation ties
simultaneously. With the thumb notches offset, one from another, the perforation ties
are broken in sequence starting with the ties adjacent to the second printed thumb
notch and moving toward both corners of the inner ply or plies. This allows the interior
plies to snap out much easier.
[0020] It will be understood from the foregoing description that various modifications and
changes may be made in the preferred embodiment of the present invention without departing
from its true spirit. It is intended that this description is for purposes of illustration
only and should not be construed in a limiting sense. The scope of this invention
should be limited only by the language of the following claims.
1. An improved mailer set comprising a front and a back ply, one or more interior
plies positioned therebetween and attached along one edge thereof, each of said interior
plies having a perforated line extending along said attached edge, said perforated
line being positioned inboard of said edge attachment, a first and a second thumb
notched portion located on said front ply and one of said thumb notched portions having
a perforated line therearound, said first and second thumb notched portions being
offset one from another such that the application of opposing forces to said first
and second thumb notched portions causes a sequential bursting of the perforated lines
to thereby allow easier removal of said interior plies.
2. The improved mailer set as described in claim 1 wherein said first thumb notched
portion is positioned along the left hand edge of said mailer set in a manner offset
from said second thumb notched portion positioned along said right hand edge and said
first thumb notched portion includes a perforated line therearound.
3. The improved mailer set as described in claim 2 wherein the first thumb notched
portion positioned along the left hand edge is between the center and the top of said
left hand edge and said second thumb notched portion is positioned in the approximate
center of the right edge of the mailer set.
4. The improved mailer set as described in claim 3 wherein the first thumb notched
portion positioned along the left hand edge is between the center and the bottom of
the left hand edge.
5. The improved mailer set as described in claim 4 wherein the second thumb notched
portion is positioned between the center and the top of said right hand edge.
6. The improved mailer set as described in claim 5 wherein the second thumb notched
portion is positioned between the center and the bottom of said right hand edge.