U.S. patent application number 15/174225 was filed with the patent office on 2016-09-29 for multilayer paper system.
The applicant listed for this patent is Max Brickman. Invention is credited to Max Brickman.
Application Number | 20160279994 15/174225 |
Document ID | / |
Family ID | 54006351 |
Filed Date | 2016-09-29 |
United States Patent
Application |
20160279994 |
Kind Code |
A1 |
Brickman; Max |
September 29, 2016 |
Multilayer Paper System
Abstract
A multilayer paper system that allows a user to write or fill in
forms while non-users are unable to see what is written through the
use of a first layer privacy screen with embedded micro-louvers, a
second color change layer with microencapsulated dye, and a stylus
type pen that causes color change to occur on the second layer
while reducing the ability for those next to or around the person
to discern what is written on the sheet.
Inventors: |
Brickman; Max; (Milwaukee,
WI) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Brickman; Max |
Milwaukee |
WI |
US |
|
|
Family ID: |
54006351 |
Appl. No.: |
15/174225 |
Filed: |
June 6, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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14341353 |
Jul 25, 2014 |
9358761 |
|
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15174225 |
|
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|
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61946864 |
Mar 2, 2014 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B32B 2307/412 20130101;
B32B 2307/402 20130101; Y10T 428/31993 20150401; B32B 2250/26
20130101; B32B 29/005 20130101; Y10T 428/24934 20150115; B32B
2307/41 20130101; G07C 13/00 20130101; B32B 2250/02 20130101; B41M
5/165 20130101; B32B 7/06 20130101; B32B 2307/40 20130101 |
International
Class: |
B41M 5/165 20060101
B41M005/165 |
Claims
1. A multilayer paper system, comprising: a first thin privacy
screen layer with embedded micro-louvers; a second color changing
layer including microencapsulated agent; wherein a stylus type pen
is used to impress or write on the privacy screen layer.
2. The multilayer paper system of claim 1 wherein the first thin
privacy screen layer is a material generally between around 0.1-0.7
MM.
3. The multilayer paper system of claim 1 wherein the second layer
is separable from the first layer such that the second layer can be
scanned after separation.
4. The multilayer paper system of claim 1 wherein the visibility
reducing filter allows for anything viewed through the filter to be
discernable within a predetermined range of angles, but not
discernable at angles outside of the predetermined range.
5. The multilayer paper system of claim 1 wherein the visibility
(transmittance) within the predetermined range is between 50% and
100% and the visibility outside the predetermined range is between
0% and 50%.
6. The multilayer paper system of claim 1 wherein permanent color
change will occur in less than 30 seconds.
7. The multilayer paper system of claim 1 wherein the color
changing layer reacts to a normal writing pressure.
8. The multilayer paper system of claim 1 wherein the color
changing layer comprises a dye.
9. The multilayer paper system of claim 1 wherein the color
changing layer is a substrate containing microcapsules which
contain a color forming solution.
10. The multilayer paper system of claim 1 wherein the resulting
color change can be read via OMR devices.
11. A scannable response form, comprising: a first layer comprising
a visibility-reducing filter allowing for viewing therethrough
within a predetermined range of viewing angles and reduced
visibility when viewing from other angles; a second layer
comprising pressure-sensitive microencapsulated dye; wherein
pressure applied to the first layer causes microencapsulated dye in
the second layer to rupture and leave a mark in the second
layer.
12. The scannable response form of claim 11, wherein the
predetermined range of viewing angles is from 70 degrees to 90
degrees.
13. The scannable response form of claim 11, wherein the first
layer further includes preprinted indicia.
14. The scannable response form of claim 11, wherein the second
layer further includes preprinted indicia.
15. The scannable response form of claim 11, wherein the pressure
required to rupture the microencapsulated dye in the second layer
is the pressure normally exerted when writing.
16. The scannable response form of claim 11, wherein the first
layer and the second layer are separable such that the second layer
can be read using an OMR device.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. Ser. No.
14/341,353 filed Jul. 25, 2014, now U.S. Pat. No. 9,358,761 issued
on Jun. 7, 2016, which claims priority to U.S. Provisional
Application No. 61/946,864 filed on Mar. 2, 2014, the entirety of
which are each expressly incorporated by reference herein.
TECHNICAL FIELD
[0002] The present novel technology relates generally to the field
of scannable response forms, and, more particularly, to a
multilayer paper system that allows a user to write or fill in
forms while non-users are unable to see what is written.
BACKGROUND
[0003] Scannable forms enable rapid monitoring of items, and
permits more frequent record keeping or testing than might
otherwise be achieved if an operator had to check the forms
manually. One manner in which scannable forms are used is to score
scholastic test results. These forms are ideal for test taking
because the preprinted forms save time for an operator grading
student response forms, and are available at a relatively low cost.
However, while in use, these forms do not provide any privacy or
protection from the view of others; thus, academic integrity is a
concern.
[0004] Although it is known to employ various methods to reduce or
diminish academic dishonesty on exams (i.e., monitoring exams with
proctors, prohibiting talking or any form of communication, using
various versions of the test with the questions scrambled), a cost
effective manner of ensuring academic integrity during test taking
that utilizes scannable forms has not been successfully employed in
a manner that hides the test takers responses from anyone other
than those within a predetermined visibility range, while being
durable for reuse.
[0005] There is a need for an improved system that may be utilized
with scannable forms that reduces the ability for those next to or
around the test taker from discerning what is written on the form.
The present novel technology addresses this need.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a side exploded view of a multilayer paper system
according to a first embodiment of the present novel
technology.
[0007] FIG. 2 is a top plan view of the embodiment of FIG. 1
illustrating a scannable form.
[0008] FIG. 3 is a side view of another embodiment of the novel
technology.
DESCRIPTION
[0009] For the purposes of promoting an understanding of the
principles of the novel technology and presenting its currently
understood best mode of operation, reference will now be made to
the embodiments illustrated in the drawings and specific language
will be used to describe the same. It will nevertheless be
understood that no limitation of the scope of the novel technology
is thereby intended, with such alterations and further
modifications in the illustrated device and such further
applications of the principles of the novel technology as
illustrated therein being contemplated as would normally occur to
one skilled in the art to which the novel technology relates.
[0010] FIGS. 1-2 represent a first embodiment of the present novel
technology, a paper system 10 that generally contains multiple
layers (or single layer with multiple functionality) for allowing a
user to write or fill in forms 40 while non-users are unable to see
what is written. The paper system 10 typically includes a first
thin privacy screen layer 20 and a second color change layer 30,
generally bound or temporarily connected while in use. The first
thin privacy screen layer 20 typically contains embedded
micro-louvers 25, or the like, that allow transparency from an
incident viewing angle typically around 90 degrees, although other
viewing angles may allow transparency, but provide an opaque
surface to more oblique viewing angles. The screen layer 20 acts
much like Venetian blinds or some computer monitor screens, but is
much thinner. The second layer 30 includes microencapsulated color
changing agent 30 (which may be a dye, solution, single or, binary
system, heat activated, or the like). Sufficient pressure on the
second layer 30 selectively ruptures microencapsulated ink, dye or
the like that results in a readable image on the color change layer
30 and, typically, on the form 40 located below and in contact with
the color change layer 30. In some embodiments, the color change
layer 30 is unitary with the form 40.
[0011] In use, a user utilizes a stylus type pen to press or write
on the privacy filter 20. The resulting pressure forces a focused
point of the privacy screen 20 into the layers below 30 until the
microcapsules rupture and color change occurs in a focused area
where the user applied pressure. The pressure change will occur
with force similar to that at the tip of a pen when writing
normally. Therefore, the color change sheets will not react with
tighter pressure during production, printing, from nip-pressure
when holding the paper, or from scanning. While writing, the user's
viewing point will be above the paper 10 within an angle range of
about 20% which will allow him or her to see the color change
instantly as if writing. However, the privacy screen's
micro-louvers will reduce the ability for those next to or around
the person to discern what is written on the sheet. In one example,
the visibility (transmittance) for a viewer within the
predetermined range is between 50% and 100% whereas the visibility
for a viewer outside the predetermined range is between 0% and
50%.
[0012] All layers of the product 10 are typically bound or
temporarily connected while in use, but can be separated easily
after use. The color change sheet 30 may then be seen without the
use of the privacy filter 20, or other layers. The form sheet 40
may then be fed into a scanner, copier or other machine, to perform
OMR (Optical Mark Recognition) or copying without causing the sheet
to change color more. In some embodiments, the color change layer
30 includes inks or dyes that have infrared absorbing and/or
reflecting components so as to be more compatible with OMR systems.
Text or other indicia may be printed on one or both of the privacy
filter later and the color change layer. Examples of such printing
may include fill in answer bubbles, boxes, ovals, and the like as
well as lines or spaces for filing out identifying information such
as name, student number, date, and the like. Forms created for uses
other than testing may include different printing as desired.
[0013] Another embodiment of the novel technology is shown in FIG.
3. In this particular embodiment, a multilayer scannable form 100
is being viewed by two different viewers 130, 150 from two
different viewing angles 120, 140. If an imaginary line 110 is
drawn normal to the surface of the form 100 (i.e., at a 90 degree
angle), then line 125 represents the viewing angle of viewer 130
and line 145 represents the viewing angle of viewer 150. In this
particular example, angle 120 is about 20 degrees making the
viewing line 125 of viewer 130 about 70 degrees and angle 140 is
about 45 degrees making the viewing line 145 of viewer 150 about 45
degrees. Viewer 130 would be able to view form 100 and anything
written thereon normally because viewing angle 120 is within the
20% viewing angle range of the form 100. Viewer 150, however, would
have an obscured or diminished view of anything written on form 100
as the viewing angle 140 falls outside of the viewing angle range
of the form 100. In other examples forms may have a wider or
narrower viewing range as desired.
[0014] While the novel technology has been illustrated and
described in detail in the drawings and foregoing description, the
same is to be considered as illustrative and not restrictive in
character. It is understood that the embodiments have been shown
and described in the foregoing specification in satisfaction of the
best mode and enablement requirements. It is understood that one of
ordinary skill in the art could readily make a nigh-infinite number
of insubstantial changes and modifications to the above-described
embodiments and that it would be impractical to attempt to describe
all such embodiment variations in the present specification.
Accordingly, it is understood that all changes and modifications
that come within the spirit of the novel technology are desired to
be protected.
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