U.S. patent number 3,909,331 [Application Number 05/430,705] was granted by the patent office on 1975-09-30 for method of window foiling precut geometric patterns in a burglar alarm system.
Invention is credited to Morton Cohen.
United States Patent |
3,909,331 |
Cohen |
September 30, 1975 |
Method of window foiling precut geometric patterns in a burglar
alarm system
Abstract
This invention describes a method and apparatus for window
foiling in a burglar alarm system. Precut geometric shaped metallic
foil patterns are removably mounted on a support means. The
patterns are mounted in its full shape. The window is initially
foiled with straight line segments using conventional foil. The
precut foil patterns are removed from the support and connected to
the straight line segments in an overlapping relationship
therewith. The overlapping portions can be perforated to provide
good electrical contact therebetween.
Inventors: |
Cohen; Morton (Little Neck,
NY) |
Family
ID: |
23708671 |
Appl.
No.: |
05/430,705 |
Filed: |
January 4, 1974 |
Current U.S.
Class: |
156/253; 156/297;
200/61.62; 340/550; 156/258; 200/61.08; 200/61.93; 219/203;
428/44 |
Current CPC
Class: |
H01B
7/0018 (20130101); G08B 13/04 (20130101); Y10T
428/16 (20150115); Y10T 156/1089 (20150115); Y10T
156/1057 (20150115); Y10T 156/1066 (20150115) |
Current International
Class: |
H01B
7/00 (20060101); G08B 13/04 (20060101); G08B
13/02 (20060101); B32B 031/10 (); B32B 031/18 ();
B32B 007/06 (); G08B 013/04 () |
Field of
Search: |
;340/274,248R,276
;156/258,297,253 ;161/41,406 ;200/16D,61.71,61.93,61.62 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Dier; Philip
Attorney, Agent or Firm: King; Leonard H.
Claims
What I claim as new and desire to secure by letters patent is:
1. A method for window foiling a pre-determined pattern in a
burglar alarm system with the pre-determined pattern having at
least one corner, said method comprising the steps of:
a. foiling the window with straight line segments of electrically
conductive foil to thereby form part of the pre-determined
pattern;
b. applying pre-cut, geometrically shaped metallic foil patterns to
the window in at least partially overlapping relationship with the
straight line segments to thereby complete the pre-determined
pattern; and
c. electrically coupling the portion of the straight line segments
and the pre-cut patterns that are overlapped so that the complete,
pre-determined pattern may be connected to the burglar alarm
system.
2. The method according to claim 1 wherein the pre-cut patterns
have an adhesive backing and are positioned removably on a backing
strip and wherein said applying step comprises removing said
pre-cut pattern from the backing strip and adhering them to the
window and to the line segments.
3. The method according to claim 1 wherein said applying step
comprises placing the pre-cut patterns at corner locations in the
pre-determined pattern of the line segments.
4. The method according to claim 1 wherein said applying step
comprises placing selected ones of the pre-cut patterns at least
partially contiguously with the line segments.
5. The method according to claim 1 wherein said electrically
coupling step comprises perforating the overlapped portions of the
line segments and pre-cut pattern whereby the said overlapped
portions are interlocked to provide electrical coupling.
Description
The aforementioned abstract is neither intended to define the
invention of the application which, of course, is measured by the
claims, nor is it intended to be limiting as to the scope of the
invention in any way.
BACKGROUND OF THE INVENTION
This invention relates to burglar alarm systems and more
particularly to foiling procedures and apparatus for burglar alarm
systems.
In various types of burglar alarm systems, in order to protect
windows, doors, or the like, metallic foil is placed along the
perimeter of the window, door, or the like in a continuous
arrangement. The ends of the foil are connected to a connector to
the rest of the burglar alarm system. When the glass of the window
or door to which the foil is applied is broken the foil will split
thereby opening an electrical circuit causing the alarm to
sound.
Since a continuous foil must be placed on the window, door, or the
like, it is necessary to use the same foil strip to form a corner.
In order to do so, the foil must be bent and folded in a particular
manner to achieve a corner without cutting the foil. Such corners
are difficult to achieve and frequently untidy corners will mar the
appearance of the window. Furthermore, in some windows, such as
stores, it is necessary to insure that the window foil does not mar
the beauty of the window. Thus, the foil is utilized to provide a
decorative pattern in addition to providing the security within the
burglar alarm system. However, in order to get a nice pattern it is
difficult to properly shape, bend, and form the foil into the
desired pattern. Further, the foiling operation is time consuming
and it is necessary to find means to expedite such
installation.
It is therefore an object of the present invention to provide a
apparatus for window foiling in a burglar alarm system which avoids
the aforementioned problems of the prior art.
Another object of the present invention is to provide a method of
window foiling in a burglar alarm system which avoids the
aforementioned problems of the prior art.
A further object of the present invention is to provide precut
geometric shaped metallic foil patterns which can be utilized in
window foiling procedures for burglar alarm systems.
Another object of the present invention is to provide precut
rectangular metallic foil patterns removably mounted on a support
backing which can be removed from the backing and placed within the
window foil arrangement of a burglar alarm system.
A further object of the present invention is to provide a precut
geometric shaped metallic foil pattern which can be connected to
straight line foil segments in a window foil arrangement to provide
a desired pattern for beauty and safety.
Briefly stated, the invention comprises a method and apparatus for
window foiling in a burglar alarm system. Precut geometric shaped
lead or aluminium metallic foil patterns are removably mounted on a
support backing. The foil is provided with a self-adhesive backing.
In foiling a window, straight line segments are placed on the
window in accordance with a predesired pattern. The precut
geometric patterns are removed from the backing and placed
connecting the straight line segments in an overlapping
relationship. If needed, the overlapping portions can be perforated
with a serrated roller to provide good electrical contact
therebetween.
These and other objects, features and advantages of the invention
will, in part, be pointed with particularity, and will, in part,
become obvious from the following more detailed description of the
invention, taken in conjunction with the accompanying drawings,
which form an integral part thereof.
BRIEF DESCRIPTION OF THE DRAWING
In the drawing:
FIG. 1 is an elevational view of a window foiling arrangement;
FIG. 2 shows a corner of the foil arrangement in accordance with
the prior art;
FIG. 3 shows one embodiment of the present invention;
FIG. 4 shows a foiling arrangement utilizing one embodiment of the
present invention;
FIGS. 5a, 5b, 5c show various ways in which the present invention
can be utilized;
FIG. 6 shows another embodiment of the present invention;
FIGS. 7, 8 and 9 show foiling arrangements utilizing the embodiment
shown in FIG. 6;
FIGS. 10 and 11 show other embodiments of the present invention,
and
FIG. 12 shows a device useful for providing the perforations in
accordance with the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to FIG. 1 there is shown a window 10 having a frame
11 and including metallic foil 12 arranged in a continuous pattern
around the perimeter of the window. The ends of the foil 14, 16 are
connected to a terminal block 18 which can be interconnected within
a burglar alarm system. When the window is broken the foil will
split thereby opening the continuous path and causing the burglar
alarm to sound.
In foiling the window, a roll of foil is utilized and pulled off as
needed to apply the foil in one continuous strip. The foil is
started at one end, for example in 14, and firmly applied along the
window in accordance with the desired pattern. The roll of foil can
either be self-adhesive foil which applies directly to the window
or if not adhesive foil is utilized, a coat of adhesive is first
placed on the window in accordance with the desired pattern and the
foil placed onto the adhesive. The foil may be coated with varnish
or other protective coating.
While the main purpose of the foil is to provide protection to the
window as part of the burglar alarm system, since the foil is
readily visible, it is generally applied so as not to mar the
beauty of the window. In fact, frequently, the foil is utilized to
provide a decorative arrangement to the window. For example, as
shown in FIG. 1, each of the corners of the foil is provided with a
rectangular extension 20 which adds to the decorative beauty of the
arrangement.
While the variations of the decorative patterns are many, in order
to achieve the decoration, it requires a great amount of skill.
Since the foil must be applied in a continuous strip, at each
corner, the foil must be folded in such a manner as to provide a
right angle without cutting the foil. As is shown in FIG. 2, the
prior art foil is therefore initially placed along line 22 until
the edge 24 is reached. The foil must be then bent over at edge 24
to form a first fold. The foil is then bent back along line 26 at a
45.degree. angle and the foil continued along line 28. In so doing,
a number of bends and creases result and in order to achieve the
proper corner, it becomes a highly skilled operation. It is
therefore difficult, if not impossible, for the average layman to
apply the foil to his own windows. The difficulty results not only
in providing a decorative arrangement as shown in FIG. 1, but even
providing normal square corners without the decorative arrangement
also becomes a task since the corners must be relatively neat and
at the same time continuous.
In order to provide the feasibility of foiling a window without the
aforementioned problems, and at the same time the possibility of
having a decorative arrangement, the present invention provides
precut geometric shaped metallic foil patterns which can be
utilized in the foiling operation. Referring now to FIG. 3 there is
shown three rectangular precut metallic foil patterns 30, 32, 34
mounted on a backing 36. The foil patterns 30, 32, 34 can have an
adhesive backing such that it sticks to the support 36 and at the
same time can easily be removed. In utilizing the apparatus
described in FIG. 3, and referring back to FIG. 1, the window would
be foiled by initially placing down the straight line segments 12
around the perimeter of the window. These could be made of one
continuous strip without providing excessive neatness at the
corners, or in fact could be made in separate strips avoiding the
need of providing the square corner. After the straight line
segments 12 have been placed down on the window, the precut
geometric shape as shown in FIG. 3 are removed from the backing
sheet 36 and located in the corners 20 of the foiling arrangement.
The precut shapes are placed in overlapping arrangement with the
straight line segment such that contact can be made therebetween.
In order to insure proper contact, a perforation can be made
between the overlapping portions to provide good electrical contact
therebetween. Such perforations could be made utilizing a pin by
pricking small holes therethrough or utilizing the tools shown in
FIG. 12. The tools include a handle 40, with a small rotating
serrated wheel having a diameter in the order of 1/4 inch and
connected thereto by means of the arm 44 through wheel shaft 43
passes.
In addition to the arrangement shown in FIG. 1, the precut
geometric rectangles of FIG. 3 can be utilized to form the
decorative arrangement shown in FIG. 4. The straight line segments
46, 48 would initially be placed down on the window and
consequently the rectangle 50 would be added to provide the
decoration. It is understood that the procedure could be reversed
such that first the geometric shape be placed and subsequently the
straight line segments added thereto. The only requirement is that
they be placed in overlapping relationship to insure good
electrical contact.
The geometric shape shown in FIG. 5a can be utilized in its
entirety to provide a complete rectangle as heretofore described,
or portions thereof can be utilized to provide specific shapes. For
example, by cutting the rectangle along two of its arms, the single
L-shaped figure shown in 5b can be obtained. This can be utilized
to provide good corners in a simple arrangement without the
rectangular blocks. Also, the rectangle can be cut to provide the
U-shaped channel shown in FIG. 5c to provide additional window
foiling arrangement.
Referring now to FIG. 6, it is seen that the precut shaped pattern
can include not only rectangles but loops 51 and either one or a
plurality of loops can be placed on the backing sheet 52.
Furthermore, the loops can be interconnected such that the entire
pattern can be utilized in its entirety or portions of the pattern
can be cut and interconnected to various line segments of the
window foil pattern. For example, FIG. 7 utilizes a single precut
foil loop 54 interconnecting the line segment 56. FIG. 8, utilizes
three such loops 54, interconnecting the straight line segments
60,62. FIG. 9, utilizes a single loop 64 interconnecting the
straight line segments 66, 68. It is understood that other such
type arrangements could be utilized to provide additional patterns
and to provide additional foiling arrangements.
It is also possible to have the precut geometric shaped metallic
foil patterns formed as a continuous strip. As shown in FIG. 10,
the continuous foil pattern 70 is located on the backing sheet 72.
In this manner, the complete window arrangement could be made
comprising the loops 70 by interconnecting segments of the precut
pattern one to the other. The window would therefore be foiled by
first placing the end contact using standard foil from a roll, and
then utilizing the precut strips 70 to form the entire window
arrangement.
Referring now to FIG. 11, there is seen that other arrangements can
be utilized such as the triangular arrangement 74 placed on the
backing sheet 76 such that triangular corners or other geometric
patterns and arrangements can be obtained from the window. The
backing sheet, or support means should be of a release type; one
which will not adhere to the self-adhesive of the foil, aluminium
and lead are currently preferred materials for the foil.
The main features of the invention are that the foiling arrangement
can be achieved not only to provide safety but at the same time to
provide neatness in forming the corners and at the same time
provide beauty by utilizing various arrangements heretofore not
possible to achieve when using the conventional roll of foil for
the rolling procedure.
There has been disclosed heretofore the best embodiment of the
invention presently contemplated. However, it is to be understood
that various changes and modifications may be made thereto without
departing from the spirit of the invention.
* * * * *