Title of Invention

METHOD OF DEPOSITING FUNCTIONAL FILMS ON SUBSTRATES SUCH AS GLASS SHEETS AND FILM-COATING MACHINE FOR IMPLEMENTING SAID METHOD

Abstract The invention relates to a method of depositing at least one functional film (5) on at least one part of one or two faces of flat or curved substrates (3). For said purpose, the substrates are conveyed individually to a film-coating station and are advanced therein along the plane or neutral plane thereof. The aforementioned film-coating station contains a film-applicator assembly (4) comprising at least one axis which is perpendicular to the direction of advancement of the substrate and which is parallel to the advancement plane, at least one reel of film being mounted to said assembly. The inventive method consists in: conveying the leader (10) of the film from each of the reels, which is to be applied to, and held against one face of the substrate at a selected position, into the aforementioned film-coating station; unwinding the reel(s) such that the film can be applied in strip(s) to the advancing substrate; and cutting the film(s) at a selected moment. Moreover, the new film leader is held so that it is ready to be applied at the selected position on the same substrate or on a subsequent substrate.
Full Text The present invention relates to a method and to a
film-coating machine by which at least one functional
film can be deposited on at least a part of one face or
of both faces of flat or curved substrates.
The present invention relates, inter alia, to the
protection of fragile surfaces of sheet-type substrates
to prevent them from being damaged by impact,
scratches, etc. as they are transported from the
production site to a usage site or assembly site, as
well as during said assembly.
In particular, the present invention relates to
the protection of surfaces of glass sheets, especially
of glass at least one face of which has been treated,
for example by the application of a functional layer
which has to be kept in condition throughout the
handling and transport from the production venue to the
assembly site where the sheet must generally be cut to
different dimensions of panes to be fitted.
At present, glass sheets of full float length
(plf) or cut float width (dlf) type are protected by
plastic, self-adhesive, peelable films, which are
applied to said sheets running horizontally one after
the other, said sheets being spaced apart by a short
distance, of the order of 20 to 25 mm. This protection
method is not very practical.
In actual fact, the dimensions of the films which
are commercially available and those of the sheets or
plates of glass are such that it is often necessary to
use two reels of film instead of one, the two films
overlapping in the middle region of the sheet.

Moreover, where there is no wish to protect the
edges of the sheet, it is worth pointing out that,
though it is known how to commence the film-coating at
a distance from a first transverse edge of the sheet,
it is not possible in practice to halt the film-coating
at a given distance from the opposite edge or at the
limit of this edge. In these circumstances, there is no
option but to glue the film onto the following sheet
and then cut the film between the two sheets. As a
result, this film-coating process is a time-consuming
operation.
Another major drawback of the current method is
that it necessarily leads to the whole or virtually the
whole of the sheet being coated (in any event, as
indicated above, never sparing the four margins of the
sheet) . As the sheets, in particular the glass sheets,
are generally intended to be cut at the place of
assembly into the panes to be fitted, the operator is
forced to remove the film before applying his cutting
wheel. The sheet is therefore not effectively protected
up to the actual moment of fitting, with a not
inconsiderable risk of damage to the surface of the
glass during cutting and fitting.
Thus, the current film-coating method is therefore
not satisfactory, since it takes no account of the
following different aspects:
(1) the film-coating operation should allow
uncovered zones to be set aside anywhere on
the surface of the sheet in order especially
to facilitate the subsequent sheet-cutting
work, the locations of these uncovered zones,
if so desired, being able to be prearranged
as a function of the intended purpose of the
sheets, this for workshop-prepared or
factory-prepared sheet batches;
(2) the film-coating should be able to be
performed in much shorter times, if possible

in masked time; in actual fact, this film-
coating operation is incorporated into a
production chain, the film-coating machine
advantageously having to be an automatic
machine, whereby the perfect application of
the film without air bubbles and without
manual operation of the film-cutting, as is
the case with the known method, is directly
assured; and
(3) the sheets should advantageously be able to
be delivered to the film-coating operation no
longer horizontally but vertically, or
slightly inclined relative to the vertical,
in order to reduce the floor space
requirement.
The present invention allows the aforesaid
objective (1) to be met and, in advantageous
embodiments thereof, objectives (2) and (3) also.
A first subject of the present invention is
therefore a method for depositing at least one
functional film on at least a part of one face or of
both faces of flat or curved substrates, characterized
in that the substrates are led one by one into a film-
coating station so as to be advanced therein along
their plane or mean plane, a film applicator unit,
comprising at least one axis which is perpendicular to
the direction of advancement and parallel to the plane
of advancement and on which there is mounted at least
one reel of film, being disposed in said film-coating
station, and in that, in this station, the leader of
the film of each of the reels is brought to be applied
to and held against one face of the substrate at a
chosen location, the unwinding of the reel or reels of
film is triggered with a view to the film being applied
in strip (s) to the advancing substrate, then the film
or films is/are cut at a chosen moment and the new film
leader is held so that it is ready to be applied at the

chosen location on the same substrate, or on a
following substrate, the band width of each of the
reels and their location on the axes being chosen as a
function of the regions of the substrates which are to
be covered by the films.
Advantageously, the substrates are advanced
successively along their plane or mean plane by being
led, in the course of their advancement, one by one
into the film-coating station.
The unwinding of the reels is triggered by the
advancement of the substrate and/or by a reel-unwinding
command.
According to a first embodiment of the method
according to the invention, an applicator unit is used
comprising an axis on which there is mounted at least
one reel of film, whereby on one face of the substrate,
in the direction of advancement of the substrate, as
many parallel bands or strips can be applied as there
are reels, the beginning and the end of each band being
precisely positioned on said substrate, said bands
being mutually spaced apart and the application of the
bands being able to be halted and resumed on one and
the same substrate in the course of its advancement.
According to a second embodiment of the method
according to the invention, an applicator unit is used
comprising at least two parallel axes, each axis
bearing at least one reel, at least one reel borne by
an axis being staggered relative to at least one reel
borne by the neighboring axis, whereby on one face of
the substrate, in the direction of advancement of the
substrate, as many parallel bands or strips can be
applied as there are reels, the beginning and the end
of each band being precisely positioned on said
substrate, said bands being able to overlap according
to the location of two neighboring reels on their two

axes and the application of the bands being able to be
halted and resumed on one and the same substrate in the
course of its advancement.
This technique of film coating in strips, with or
without overlap, opens up the possibility, if
necessary, of peripheral margination of a glass sheet,
with no subsequent cutting of the film, for use in a
glazed frame with glazing bead. This can be achieved
without film squeezed beneath the glazing bead, which
no longer allows the film to be stripped from the pane
after it is fitted.
Traditional film-coating techniques require a cut
to be made at the extremity of the glass, which calls
for a repeat run for make up purposes with a cutting
tool, which generally proceeds to scratch the surface
of the glass.
The film-based protection can avoid the use,
moreover, of protective inserts necessary for the
transportation and handling phases.
The substrates can be fed into the film-coating
station vertically or in a position slightly inclined
relative to the vertical, or, indeed, horizontally.
A functional film can be used which is peelable,
bonded, partially bonded, bonded on pre-cut zones, or
of the decal transfer type. The functional film can be
chosen, moreover, from amongst protective films,
decorative films, information-carrying films and
mechanical reinforcement films.
The films that can be used are, in particular,
films familiar to those skilled in the art, which are
non-polluting and weather-resistant or UV-resistant,
such as films made of PET, low-density polyethylene,
polypropylene possibly coated with an acrylic adhesive

layer, acrylic films, etc. These films, left in place
during fitting, will usefully be able to be used as
data carriers (fitting or maintenance conditions)
and/or advertising media.
The coating of glass sheets can be carried out, in
particular, on sheets of monolithic or laminated glass
or glass for multiple glazings, having, on at least one
face, a functional layer, such as a dirt-repellant
layer, a shatterproof layer, a surfacing film, said
glass sheets being flat or with rounded or curved
faces, said sheets being intended to form panes or to
be cut to obtain panes or being intended to form
windshields or automobile windows.
In particular, the coating can be carried out on
flat glass sheets intended to be cut to form panes,
characterized in that the application is realized of
peelable protective film strips according to the
aforesaid first embodiment so that the uncoated zones
are arranged in a grid pattern, each zone coated by a
strip corresponding to the daylight of a pane, and the
uncoated zones being intended to allow the direct
cutting of the glass forming the margins of the panes
intended to be introduced into the rabbets of the
frames and to be hidden from view by glazing beads.
Should the coating of curved substrates be
performed, a film can advantageously be chosen, the
extensibility properties of which allow it to be
applied to all of the planned application regions
and/or that the width of the reels and hence of the
strips is regulated as a function of the radius of
curvature, the width of the strips being all the less
since the radius of curvature is small.
The method according to the present invention can
likewise comprise the operations consisting in:

defining for each of the substrates, as a function
of its intended purpose and on at least one outer
face of said substrate, the region or regions which
are due to receive a film and the region or regions
which do not need to be coated by the film;
feeding said substrates successively into the film-
coating station and commanding, for each of them,
the application of film in the regions intended to
receive such a film; and
gathering the substrates which are thus coated.
In particular, by computerized calculation, an
optimization of the positioning of the film on the
different substrates of the succession of substrates
can be realized as a function of the dimension of the
substrates and the relative position of the regions due
to be coated and the regions not due to be coated.
The optimization can equally be realized as a
function of the fitment of the reels and the different
reels which said fitment is capable of receiving.
The present invention likewise relates to a film-
coating machine for implementing the method as defined
above, characterized in that it comprises:
a supporting and successive transfer structure for
the substrates to be protected, along their plane or
their mean plane;
a film applicator unit comprising at least one
perpendicular axis in the planned direction of
advancement of the substrates and parallel to the
plane of advancement, an axis on which at least one
reel of film is capable of being mounted in such a
way that the leader of the film proceeds to apply
itself to the face of the substrate to be coated as
this substrate is transferred, said unit being
capable of receiving for each substrate in the
course of transfer the necessary number of reels and
of a band width chosen to form on each substrate the

planned coating in strips, said reels likewise being
at least partially adjustable in height so as to
form on each substrate the planned coating in
strips;
means for commanding, at any desired moment, the
application of the leader of the film of a reel to
the substrate; and
means for cutting the band at any desired moment
once application is finished, means being provided
for holding the new leader formed after the cutting
of the band so that it is ready to be re-applied.
A film applicator unit can comprise one or two
separate, mutually parallel axes, each axis bearing at
least one reel.
The reels can be activable individually or by
groups of reels.
The film applicator unit can be movable toward or
away from the substrates to be coated, said applicator
unit being able to be displaceable in translation in
order to adjust to the dimensions of the substrate or
of the make up height of the film.
The reels can be mounted in such a way that their
leader proceeds to apply itself to the face of the
substrate to be coated after passing over an applicator
roll.
With each applicator roll can be combined a
retractable suction nozzle disposed downstream of said
roll on the side opposite the substrate, such that the
leader is sucked against said nozzle in order to be
held ready to be applied to the substrate, the
deactivation of said suction commanding the application
to the substrate of the leader of the film, especially
by an adhesive face of said film or by dint of its
electrostatic nature.

The cutting means for the film can be constituted
by a hot wire which is retractable when not in use and
is mounted on the side opposite the substrate.
With each reel can be combined a roll for applying
the film to the substrate following the cutting of said
film.
Each reel can form part of a film-application
module comprising a tension roll for the film unwound
from the reel prior to passing over the applicator
roll, a device for loading a new reel of film and for
automatically repositioning the film advantageously
being incorporated in said module.
At least one axis of the applicator unit can be
capable of receiving different sets of reels of
different band widths.
The present invention likewise relates to sheets,
especially sheets of monolithic glass, laminated,
coated with functional layers, such as panes, sheets to
be cut to form panes, windshields, additionally
comprising on at least one of their faces a functional
film applied in regions delimited along strips, which
strips can have overlapping margins.
The functional layers can be dirt-resistant
layers, shatterproof layers, surfacing films, etc.
Said sheets may have been obtained by the method
as defined above.
In order better to illustrate the subject of the
present invention, a particular embodiment will emerge
below, on an indicative and non-limiting basis, with
reference to the appended drawing, in which:
figure 1 is a functional diagram of a film-coating
machine according to the invention, in front view;

figure 2 is a diagrammatic view in partial side
elevation of the machine of figure 1; and
figure 3 is, on an enlarged scale, a diagrammatic
view in a horizontal plane of a module for applying
the peelable protective film.
If reference is made to figures 1 and 2, it can be
seen that a general diagram has been represented of a
film-coating machine according to the invention which
comprises a frame 1 for the support and transfer of
glass sheets 2, the frame 1 having at the front a
supporting plane 3 with air cushion, which supporting
plane is inclined rearward by an angle of the order of
6° relative to the vertical. The transfer of the sheets
2 is carried out by a' drive system using belts or
rollers.
The machine likewise comprises an applicator
device 4 for horizontal film bands 5. The device 4
comprises a beam 6 having the same inclination as the
sheets 2 which are transferred in front of it.
Mounted at different heights on the beam 6 are a
plurality of application modules, each comprising an
applicator roll 7 as represented in figure 3.
The upper and lower applicator rolls 7 are
adjustable in height as a function of the unprotected
lower and upper horizontal margins which are wanted to
be set aside on the glass sheets 2. In the represented
example, the lower roll is adjustable over a smaller
distance.
The intermediate rolls are three in number: in the
illustrated example they are not adjustable, their
spacing being fixed in advanced.
If reference is made to figure 3, it can be seen
that an applicator roll 7 has fed over it the film 5,

the outer surface 5a of which is that which is
adhesive, said film being unwound from a reel 8 and
passing over a film-tensioning deflector roll 9. A free
end 10 of film 5 is thus formed, which is presented
facing the sheet 2 to be protected by the film bands
(the sheet 2 is here a double glazing) , which free end
is transferred in front of it.
The free end 10 is held facing the sheet 2 by a
suction nozzle 11 downstream of the applicator roll 7.
This nozzle 11 is retractable when not in use, the free
end 10 then being freed to proceed to apply itself to
the sheet 2.
Downstream of the nozzle 11, there are also
successively provided a hot wire 12 for cutting the
film, likewise with retraction facility, and an
application roll 13 subsequent to the film being cut,
the role of which is to eliminate any air bubbles
between film and sheet.
Counter-rolls 14 are mounted opposite the rolls 7
and 13 to promote the application of the film.
The application module of figure 3 is capable of
receiving reels of different heights. The suction
device is designed and dimensioned to accept these
variations in height. This module can be mounted on a
rail in order to adjust to the dimensions of the glass
sheet or of the make up height of the film.
A roll lamination cycle on a vertical film-coating
machine might be described as follows:
Step 1: The end of the film is taken up by the suction
band; a vacuum is created on the suction pad; the glass
is loaded onto the conveyor before the detection cell
for the glass edges; the application rolls are
withdrawn;

Step 2: advancement of the glass; the front edge is
detected by the cell;
Step 3: advancement of the glass by the distance
"cell/edge of the film";
Step 4: pressing of the rolls onto the glass; breaking
of the vacuum;
Step 5: withdrawal of the glass for bonding the
beginning of the film;
Step 6: advancement of the glass (lamination of the
film); detection of the rear edge for the cell;
Step 7: advancement of the glass; withdrawal of the
module;
Step 8: advancement of the rear edge of the glass in
front of the cutting wire; suction of the film by the
suction pad;
Step 9: cutting of the film with the hot wire;
Step 10: withdrawal of the hot wire;
Step 11: removal of the glass, end of the lamination
with the small lamination.
It is evident that numerous embodiments and variants
could be envisaged without, nevertheless, departing
from the scope of the present invention.

WE CLAIM:
1. A method for depositing at least one functional film (5) on at least a part
of one face or of both faces of flat or curved substrates (2), characterized in that
the substrates are led one by one into a film-coating station so as to be
advanced therein along their plane or mean plane, a film applicator unit (4),
comprising at least one axis which is perpendicular to the direction of
advancement and parallel to the plane of advancement and on which there is
mounted at least one reel (8) of film (5), being disposed in said film-coating
station, and in that, in this station, the leader (10) of the film (5) of each of the
reels (8) is brought to be applied to and held against one face of the substrate
(2) at a chosen location, the unwinding of the reel or reels (8) of film is triggered
with a view to the film (5) being applied in strip(s) to the advancing substrate
(2), then the film or films (5) is/are cut at a chosen moment and the new film
leader (10) is held so that it is ready to be applied at the chosen location on the
same substrate, or on a following substrate, the band width of each of the reels
and their location on the axes being chosen as a function of the regions of the
substrates which are to be covered by the films, and in that an applicator unit (4)
is used comprising an axis on which there is mounted at least one reel
(8) of film (5), whereby on one face of the substrate (2), in the direction

of advancement of the substrate (2), as many parallel bands or strips can be
applied as there are reels (8), the beginning and the end of each band being
precisely positioned on said substrate, said bands being mutually spaced apart
and the application of the bands being able to be halted and resumed on one
and the same substrate (2) in the course of its advancement.
2. A method for depositing at least one functional film (5) on at least a part
of one face or of both faces of flat or curved substrates (2), characterized in that
the substrates are led one by one into a film-coating station so as to be
advanced therein along their plane or mean plane, a film applicator unit (4),
comprising at least one axis which is perpendicular to the direction of
advancement and parallel to the plane of advancement and on which there is
mounted at least one reel (8) of film (5), being disposed in said film-coating
station, and in that, in this station, the leader (10) of the film (5) of each of the
reels (8) is brought to be applied to and held against one face of the substrate
(2) at a chosen location, the unwinding of the reel or reels (8) of film is triggered
with a view to the film (5) being applied in strip(s) to the advancing substrate
(2), then the film or films (5) is/are cut at a chosen moment and the new film
leader (10) is held so that it is ready to be applied at the chosen location on the
same substrate, or on a following substrate, the band width of each of the reels

and their location on the axes being chosen as a function of the regions of the
substrates which are to be covered by the films, wherein an applicator unit (4) is
used comprising at least two parallel axes, each axis bearing at least one reel
(8), at least one reel (8) borne by an axis being staggered relative to at least
one reel (8) borne by the neighboring axis, whereby on one face of the
substrate, in the direction of advancement of the substrate, as many parallel
bands or strips can be applied as there are reels (8), the beginning and the end
of each band being precisely positioned on said substrate (2), each bands being
able to overlap according to the location of two neighboring reels on their two
axes and the application of the bands being able to be halted and resumed on
one and the same substrate in the course of its advancement.
3. The method as claimed in one of claims 1 or 2, wherein the substrates (2)
are fed into the film-coating station vertically or in a position slightly inclined
relative to the vertical.
4. The method as claimed in one of claims 1 to 3, the substrates (2) are fed
horizontally into the film-coating station.

5. The method as claimed in one of claims 1 to 4, wherein a functional film is
used which is peelable, bonded, partially bonded, bonded on pre-cut zones, or of
the decal transfer type.
6. The method as claimed in one of claims 1 to 5, wherein a functional film is
used which is chosen from amongst protective films, decorative films,
information-carrying films and mechanical reinforcement films.
7. The method as claimed in one of claims 1 to 6, wherein the coating of
glass sheets is realized, in particular of sheets of monolithic or laminated glass or
glass for multiple glazings, having, on at least one face, a functional layer, such
as a dirt-repellant layer, a shatterproof layer, a surfacing film, said glass sheets
being flat or with rounded or curved faces, said sheets being intended to form
panes or to be cut to obtain panes or being intended to form windshields or
automobile windows.
8. The method as claimed in claim 7, in which the coating is carried out on
flat glass sheets intended to be cut to form panes, wherein the application of
peelable protective film strips is carried out in the manner defined in claim 2 so
that the uncoated zones are arranged in a grid pattern, each zone coated by a

strip corresponding to the daylight of a pane, and the uncoated zones being
intended to allow the direct cutting of the glass forming the margins of the panes
intended to be introduced into the rabbets of the frames and to be hidden from
view by glazing beads.
9. The method as claimed in claim 7, in which the coating is performed of
curved substrates, wherein a film is chosen, the extensibility properties of which
allow it to be applied to all of the planned application regions and/or that the
width of the reels and hence of the strips is regulated as a function of the radius
of curvature, the width of the strips being all the less the smaller the radius of
curvature.
10. The method as claimed in one of claims 1 to 9, wherein it comprises the
operations consisting of:
- defining for each of the substrates, as a function of its intended purpose
and on at least one outer face of said substrate, the region or regions
which are due to receive a film and the region or regions which do not
need to be coated by the film;

- feeding said substrates successively into the film-coating station and
commanding, for each of them, the application of film in the regions
intended to receive such a film; and
- gathering the substrates which are thus coated.

11. The method as claimed in claim 10, wherein by computerized calculation,
an optimization of the positioning of the film on the different substrates of the
succession of substrates is realized as a function of the dimension of the
substrates and the relative position of the regions due to be coated and the
regions not due to be coated.
12. The method as claimed in claim 11, wherein the optimization is equally
realized as a function of the fitment of the reels and the different reels which
said fitment is capable of receiving.
13. A film-coating machine for implementing the method as defined in one of
claims 1 to 12, wherein it comprises:
- a supporting and successive transfer structure (1) for the sheets to be
protected, along their plane or their mean plane;

a film applicator unit (4) comprising at least one perpendicular axis in the
planned direction of advancement of the substrates and parallel to the
plane of advancement, an axis on which at least one reel (8) of film is
capable of being mounted in such a way that the leader of the film (5)
proceeds to apply itself to the face of the substrate (2) to be coated as
this face is transferred, said unit (4) being capable of receiving for each
substrate (2) in the course of transfer the necessary number of reels (8)
and of a band width chosen to form on each substrate (2) the planned
coating in strips, said reels (8) likewise being at least partially adjustable
in height so as to form on each substrate (2) the planned coating in
strips; the said unit comprising one or two separate, mutually parallel
axes, each axis bearing at least one reel;
means for commanding, at any desired moment, the application of the
leader (10) of the film (5) of a reel to the substrate; and
means for cutting the band at any desired moment once application is
finished, means being provided for holding the new leader formed after
the cutting of the and so that it is ready to be re-applied.

14. The machine as claimed in claim 13, wherein the reels are activable
individually or by groups or reels.
15. The machine as claimed in one of claims 13 or 14, wherein the film
applicator unit (4) is movable toward or away from the substrate to be coated,
said applicator unit being able to be dispiaceable in translation in order to adjust
to the dimensions of the substrate or of the make up height of the film.
16. The machine as claimed in one of the claims 13 to 15, wherein the reels
(8) are mounted in such away that their leader (10) proceeds to apply itself to
the face of the substrate (2) to be coated after passing over an applicator roll
(7).
17. The machine as claimed in claim 16, wherein with each applicator roll (7)
is combined a retractable suction nozzle (11) disposed downstream of said roll
(7) on the side opposite the substrate (2), such that the leader (10) is sucked
against said nozzle (11) in order to be held ready to be applied to the substrate
(2), the deactivation of said suction commanding the application to the substrate
of the leader (10) of the film (5), especially by an adhesive face of said film or by
dint of its electrostatic nature.

18. The machine as claimed in one of claims 13 to 17, wherein the cutting
means for the film (5) is constituted by a hot wire (12) which is retractable when
not in use and is mounted on the side opposite the substrate (2).
19. The machine as claimed in one of claims 13 to 18, wherein with each reel
(8) is combined a roll (13) for applying the film (5) to the substrate (2) following
the cutting of said film (5).
20. The machine as claimed in one of claims 14 to 21, each reel (8) forms
part of a film-application module comprising a tension roll (9) for tensioning the
film (5) unwound from the reel (8) prior to passing over the applicator roll (7), a
device for loading a new reel of film and for automatically repositioning the film
advantageously being incorporated in said module.
21. The machine as claimed in one of claim 13 to 21, wherein at least one
axis of the applicator unit (4) is capable of receiving various sets of reels (8) of
various and widths.


The invention relates to a method of depositing at least one functional film (5)
on at least one part of one or two faces of flat or curved substrates (3). For said
purpose, the substrates are conveyed individually to a film-coating station and
are advanced therein along the plane or neutral plane thereof. The
aforementioned film-coating station contains a film-applicator assembly (4)
comprising at least one axis which is perpendicular to the direction of
advancement of the substrate and which is parallel to the advancement plane, at
least one reel of film being mounted to said assembly. The inventive method
consists in: conveying the leader (10) of the film from each of the reels, which is
to be applied to, and held against one face of the substrate at a selected
position, into the aforementioned film-coating station; unwinding the reel(s) such
that the film can be applied in strip(s) to the advancing substrate; and cutting
the film(s) at a selected moment. Moreover, the new film leader is held so that it
is ready to be applied at the selected position on the same substrate or on a
subsequent substrate.

Documents:

01886-kolnp-2005-abstract.pdf

01886-kolnp-2005-claims.pdf

01886-kolnp-2005-description complete.pdf

01886-kolnp-2005-drawings.pdf

01886-kolnp-2005-form 1.pdf

01886-kolnp-2005-form 2.pdf

01886-kolnp-2005-form 3.pdf

01886-kolnp-2005-form 5.pdf

01886-kolnp-2005-international publication.pdf

1886-KOLNP-2005-CORRESPONDENCE.pdf

1886-KOLNP-2005-EXAMINATION REPORT.pdf

1886-KOLNP-2005-FORM 18.pdf

1886-KOLNP-2005-FORM 26.pdf

1886-KOLNP-2005-FORM 3.pdf

1886-KOLNP-2005-FORM 5.pdf

1886-KOLNP-2005-FORM-27.pdf

1886-KOLNP-2005-GRANTED-ABSTRACT.pdf

1886-KOLNP-2005-GRANTED-CLAIMS.pdf

1886-KOLNP-2005-GRANTED-DESCRIPTION (COMPLETE).pdf

1886-KOLNP-2005-GRANTED-DRAWINGS.pdf

1886-KOLNP-2005-GRANTED-FORM 1.pdf

1886-KOLNP-2005-GRANTED-FORM 2.pdf

1886-KOLNP-2005-GRANTED-SPECIFICATION.pdf

1886-KOLNP-2005-OTHERS.pdf

1886-KOLNP-2005-REPLY TO EXAMINATION REPORT.pdf

1886-KOLNP-2005-TRANSLATED COPY OF PRIORITY DOCUMENT.pdf

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Patent Number 249820
Indian Patent Application Number 1886/KOLNP/2005
PG Journal Number 46/2011
Publication Date 18-Nov-2011
Grant Date 15-Nov-2011
Date of Filing 21-Sep-2005
Name of Patentee SAINT-GOBAIN GLASS FRANCE
Applicant Address "LES MIROIRS", 18, AVENUE D'ALSACE, F-92400 COURBEVOIE
Inventors:
# Inventor's Name Inventor's Address
1 DOUCHE, JEAN-PIERRE 10, IMPASSE DES PINS, F-60150 LE PLESSIS BRION, FRANCE
2 DEMARS, YVES 237, RUE DE 1'EMPIRE, GICOURT, F-60600 AGNETZ, FRANCE
PCT International Classification Number C03B17/06
PCT International Application Number PCT/FR2004/000705
PCT International Filing date 2004-03-22
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 03/03611 2003-03-21 France