U.S. patent application number 11/914835 was filed with the patent office on 2008-08-21 for air blowing arrangement for a combined refrigerator.
Invention is credited to Adriano Cargnin, Luiz Afranio Alves Ferreira, Lauro Fernando Souza Ignacio Jr, Moacyr Marangone Mezavila.
Application Number | 20080196441 11/914835 |
Document ID | / |
Family ID | 37428595 |
Filed Date | 2008-08-21 |
United States Patent
Application |
20080196441 |
Kind Code |
A1 |
Ferreira; Luiz Afranio Alves ;
et al. |
August 21, 2008 |
Air Blowing Arrangement For a Combined Refrigerator
Abstract
An air blowing arrangement for a combined refrigerator of the
forced ventilation type and that comprises: a cabinet formed by an
outer case and by two inner cases spaced from each other by a
thermal insulating filler and defining a freezing compartment and a
refrigerating compartment; and an air diffusing element defining at
least one air distributing duct, having an air inlet in
communication with the interior of the inner case of the freezing
compartment and a plurality of air outlets opened to the interior
of the refrigerating compartment. The air diffusing element is
disposed in the interior of the thermal insulating filler and
seated against the rear wall of the inner case of the refrigerating
compartment, said rear wall being provided with a plurality of
windows aligned with respective air inlet openings of the air
distributing duct.
Inventors: |
Ferreira; Luiz Afranio Alves;
(Joinville-SC, BR) ; Mezavila; Moacyr Marangone;
(Joinville-SC, BR) ; Cargnin; Adriano;
(Joinville-Sc, BR) ; Ignacio Jr; Lauro Fernando
Souza; (Joinville-SC, BR) |
Correspondence
Address: |
DARBY & DARBY P.C.
P.O. BOX 770, Church Street Station
New York
NY
10008-0770
US
|
Family ID: |
37428595 |
Appl. No.: |
11/914835 |
Filed: |
July 11, 2006 |
PCT Filed: |
July 11, 2006 |
PCT NO: |
PCT/BR06/00141 |
371 Date: |
January 30, 2008 |
Current U.S.
Class: |
62/408 ; 62/159;
62/407; 62/447 |
Current CPC
Class: |
F25D 2317/067 20130101;
F25D 23/068 20130101; F25D 17/065 20130101; F25D 23/061 20130101;
F25D 2317/0666 20130101; F25D 2317/0682 20130101; F25D 2317/0672
20130101 |
Class at
Publication: |
62/408 ; 62/447;
62/407; 62/159 |
International
Class: |
F25D 17/06 20060101
F25D017/06; F25D 11/02 20060101 F25D011/02; F25D 17/00 20060101
F25D017/00; F25B 49/00 20060101 F25B049/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 12, 2005 |
BR |
P10502706-3 |
Claims
1. An air blowing arrangement for a combined refrigerator of the
type with forced ventilation and which comprises: a cabinet formed
by an outer case and two inner cases, each provided with a rear
wall and spaced from each other and from the outer case by a
thermal insulating filler, said inner cases respectively defining a
freezing compartment and a refrigerating compartment; and an air
diffusing element mounted to the cabinet and defining at least one
air distributing duct, which has an air inlet in communication with
the interior of the inner case of the freezing compartment, in
order to receive a cool airflow, and a plurality of air outlets
opened to the interior of the refrigerating compartments,
characterized in that the air diffusing element is disposed in the
interior of the thermal insulating filler, between the outer case
and the rear wall of the inner case of the refrigerating
compartments, against which it is seated and retained, said rear
wall being provided with a plurality of windows with which are
aligned respective air inlet openings of the air distributing duct
defined in the interior of the air diffusing body.
2. The arrangement, as set forth in claim 1, wherein the air
diffusing element comprises a parallelepipedic body of low height
and made of a material of low thermal conductivity and presenting a
rear face and a front face to be hermetically seated and externally
affixed against the rear wall of the respective inner case, said
air distributing duct being defined by a respective channel
provided along part of the longitudinal extension of the air
diffusing element and opened to the rear face of the latter, the
formation of said air distributing duct being completed by closing
the channel with a closing plate hermetically seated and retained
against the rear face of the air diffusing element
3. The arrangement, as set forth in claim 2, wherein the air
distributing duct presents an air inlet turned and opened to the
front face of the air diffusing element, the rear wall of the inner
case of the refrigerating compartment being provided with an
opening aligned with said air inlet, and the refrigerating
compartment being internally provided with a case affixed against
the rear wall of the respective inner case, in order to have its
interior maintained in fluid communication with the air inlet of
the air distributing duct through the respective opening provided
in said rear wall and the case being maintained in communication
with the interior of the inner case of the freezing compartment to
receive the cool airflow.
4. The arrangement, as set forth in claim 3, wherein it comprises:
a flow control means mounted in the case and to be selectively
driven from a flow releasing condition to a flow blocking condition
of the case to the air distributing duct.
5. The arrangement, as set forth in claim 4, characterized in that
wherein it further comprises a driving means operatively associated
with the flow control means to modify the operational condition of
the latter; and a temperature sensor mounted in the refrigerating
compartment, so as to activate the driving means to conduct the
flow control means to one of its operational conditions due to the
temperature reigning in the refrigerating compartments.
6. The arrangement, as set forth in claim 5, wherein the driving
means is defined by a thermostat.
7. The arrangement, as set forth in claim 4, wherein the flow
control means is defined by an obturator mounted in the interior of
the case.
8. The arrangement, as set forth in claim 5, wherein the flow
control means is defined by a fan mounted in the interior of the
case, the driving means being defined by an electric motors.
9. The arrangement, as set forth in claim 1 wherein the air
diffusing element comprises an air inlet duct also in the form of a
channel and having an air inlet opened to one of the ends of the
air diffusing element and in communication with the interior of the
inner case of the freezing compartments, and an air outlet turned
and opened to the front face of the air diffusing element, the rear
wall of the inner cases of the refrigerating compartments being
provided with an opening aligned with said air outlet and in
communication with the interior of the case.
10. The arrangement, as set forth in claim 9, wherein the air inlet
of the air inlet duct is disposed in a lower end of the air
diffusing element, the air outlet being disposed in an upper region
of both the air diffusing element and the refrigerating
compartment.
11. The arrangement, as set forth in claim 10, wherein the air
diffusing element comprises an air inlet duct that is centrally
disposed, and two air distributing ducts each disposed on each side
of the air inlet duct.
12. The arrangement, as set forth in claim 5, wherein the flow
control means is defined by an obturator mounted in the interior of
the case.
13. The arrangement, as set forth in claim 6, wherein the flow
control means is defined by an obturator mounted in the interior of
the case.
Description
FIELD OF THE INVENTION
[0001] The present invention refers to an air blowing arrangement
to be applied to a combined refrigerator of the forced ventilation
type and presenting a single cabinet that internally defines a
freezing compartment and a refrigerating compartment, usually
separated by a horizontal dividing wall.
PRIOR ART
[0002] The combined refrigerators are generally constituted by a
cabinet formed of an outer case, usually in metallic sheet, and by
two inner cases molded in plastic material, EPS for example, which
are spaced from each other and also from the outer case by a
thermal insulating filler generally in polyurethane foam injected
between said outer case and inner cases. The inner cases
respectively define the freezing compartment and the refrigerating
compartment, and the freezing compartment can be disposed above or
below the refrigerating compartment and separated therefrom by the
dividing wall.
[0003] These combined refrigerators with forced ventilation are
provided with ducts for conducting cool air coming from the
evaporator, to the freezing and refrigerating compartments.
[0004] Considering that the cool air is produced in an air
refrigerating compartment lodging an evaporator and a fan and which
is disposed inside the freezing compartment, it is necessary to
provide ducts that allow the cool air, which is produced upon
passing through the evaporator, to be conducted not only to the
freezing compartment inside which the air refrigerating compartment
is situated, but also to the refrigerating compartment disposed
below or above the freezing compartment, depending on the
construction applied to the combined refrigerator.
[0005] Usually, the conduction of cool air from the air cooling
compartment to the refrigerating compartment is made through air
passages provided in the horizontal dividing wall which separates
the freezing compartment from the refrigerating compartment. After
passing through said dividing wall, the cool airflow, to be
released to the interior of the refrigerating compartment, is
conducted through a diffusing duct mounted in the interior of the
refrigerating compartment and seated and affixed against a rear
wall of the latter, this diffusing duct being generally defined by
an EPS body provided with at least one longitudinal slot opened to
its rear face, against which is seated and affixed an adhesive
blanket that operates as a sealing joint between the diffusing duct
and the rear wall of the respective inner case. The diffusing duct
body is provided with a plurality of air outlet openings turned to
its front face and which are maintained in communication with the
rear slot, in order to permit that the forced airflow admitted into
the slot, by an adequately positioned inlet, be released through
said openings in different levels of the refrigerating
compartment.
[0006] In this type of prior art construction, the diffusing duct
is disposed inside the refrigerating compartment, therefore being
exposed to the user upon the opening of the respective front door
of the cabinet. With this assembly, it is necessary to provide a
finishing cover to be affixed onto the diffusing duct, giving to
the latter a esthetic aspect determined in the project of the
refrigeration appliance. Besides being developed to esthetically
minimize the presence of the diffusing duct inside the
refrigerating compartment, the finishing cover is designed to
present openings or windows coinciding with the air outlet openings
of the diffusing duct and also, optionally, an end portion with an
increased depth, in order to define a chamber in which will be
mounted an airflow control means for the diffusing duct, which can
be defined by an obturator or a fan, depending on the design of the
refrigerating appliance.
[0007] This known construction requires the provision of a
finishing cover to cover the whole extension of the diffusing duct,
with the consequent costs in material and investments in moulds
with considerably dimensions.
[0008] In addition to the inconvenience above, this prior art
construction requires special cares for assembling the diffusing
duct and its finishing cover, turning the assembling operations
difficult and expensive and requiring a design for both the
diffusing duct and the finishing cover for each model of combined
refrigerator.
[0009] Finally, the fact of the diffusing duct-finishing cover
assembly being exposed inside the refrigerating compartment
restricts or impairs the introduction of new esthetic
characteristics in the combined refrigerator.
SUMMARY OF THE INVENTION
[0010] By reason of the inconveniences presented by the solutions
known so far, it is an objective of the present invention to
provide an air blowing arrangement for a combined refrigerator of
the type considered above, presenting a construction which is
simple to assemble and of relatively reduced cost, and which can be
applied to different models of refrigerator.
[0011] It is a further objective of the present invention to
provide an air blowing arrangement, which requires a finishing
element of reduced dimensions and which interferes very little with
the esthetic design of the interior of the refrigerating
compartment of the combined appliance.
[0012] As already mentioned above, the present air blowing
arrangement can be applied to a combined refrigerator of the forced
ventilation type and which comprises a cabinet formed by an outer
case and two inner cases, each provided with a rear wall and
separated from each other and from the outer case by a thermal
insulating filler, said inner cases respectively defining a
freezing compartment and a refrigerating compartment; and an air
diffusing body mounted to the cabinet and defining at least one air
distributing duct, having an air inlet in communication with the
interior of the inner case of the freezing compartment and a
plurality of air outlets opened to the interior of the
refrigerating compartment.
[0013] According to the invention, the air diffusing body is
disposed in the interior of the thermal insulating filler between
the outer case and the rear wall of the inner case of the
refrigerating compartment, against which is seated and retained,
said rear wall being provided with a plurality of windows, with
which are aligned respective air outlet openings of the air
distributing duct defined inside the air diffusing body.
[0014] The basic construction defined above permits the air
diffusing body to be disposed behind the rear wall of the inner
case of the refrigerating compartment and, therefore, not visible
to the user. In this condition, the assembly of the diffusing body
is effected concomitantly with the assembly of the outer case and
inner cases, during the injection phase of the thermal insulating
filler, dispensing esthetic finishings and leaving the interior of
the refrigerating compartment free of covering pieces and liable to
variations of its ornamental aspect.
[0015] While only one air distributing duct in the air diffusing
body has been provided, it should be understood, as described
ahead, that the air diffusing body can present two or more air
distributing ducts and further at least one air inlet duct having
an air inlet in communication with the interior of the inner case
of the freezing compartment, and an air outlet in selective
communication with the air inlet of the air distributing duct(s),
said selective communication being controlled by the manual or
automatic drive of an obturator or by the automatic drive of a fan,
the automatic drive being achieved, both to the obturator and to
the fan, through a driving means whose operation is controlled by a
temperature sensor means mounted in the interior of the inner case
of the refrigerating compartment. The provision of an air inlet
duct along the air diffusing body is recommended to keep the
obturator away from the air cooling compartment defined in the
interior of the freezing compartment, when the latter is disposed
under the refrigerating compartment.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The invention will be described below, with reference to the
enclosed drawings, given by way of example of possible embodiments
of the invention and in which:
[0017] FIG. 1 is a schematic front view of a combined refrigerator
with forced ventilation, with the freezing compartment disposed
under the refrigerating compartment and using the present air
blowing arrangement, according to one of its embodiments;
[0018] FIG. 2 is a schematic vertical cross-sectional view of a
combined refrigerator of the type illustrated in FIG. 1 and
presenting the air blowing arrangement object of the present
invention;
[0019] FIG. 3 is an exploded front perspective view of the inner
case of the refrigerating compartment of FIGS. 1 and 2, further
illustrating the air diffusing body and a case for lodging the air
blowing control means;
[0020] FIG. 4 is a rear perspective view of the air diffusing body
used in the arrangement of FIGS. 1, 2 and 3;
[0021] FIG. 5 is a partial front perspective view of the inner case
of the refrigerating compartment with the blowing arrangement
illustrated in FIGS. 1, 2 and 3;
[0022] FIG. 6 is a view similar to that of FIG. 1, illustrating a
combined refrigerator with forced ventilation, also with the
freezing compartment inferiorly disposed, but with the upper
refrigerating compartment using another embodiment for the air
blowing arrangement;
[0023] FIG. 7 is a schematic vertical cross-sectional view of a
combined refrigerator of the type illustrated in FIG. 6 and
presenting the air blowing arrangement according to said other
embodiment;
[0024] FIG. 8 is a rear perspective view of the air diffusing body
used in the arrangement of FIGS. 6 and 7;
[0025] FIG. 9 is a partial front perspective view of the inner case
of the refrigerating compartment, with the air blowing arrangement
illustrated in FIGS. 6-8;
[0026] FIG. 10 is a view similar to those of FIGS. 1 and 6, but
illustrating a combined refrigerator with forced ventilation,
having the freezing compartment disposed above the refrigerating
compartment which uses said other embodiment for the air blowing
arrangement;
[0027] FIG. 11 is a schematic vertical cross-sectional view of a
combined refrigerator of the type illustrated in
[0028] FIG. 11 and presenting the air blowing arrangement according
to said other embodiment;
[0029] FIG. 12 is a perspective view of a flow control means in the
form of an obturator; and
[0030] FIG. 13 is a perspective view of a flow control means in the
form of a fan.
DETAILED DESCRIPTION OF THE INVENTION
[0031] As already mentioned, the present air blowing arrangement
can be applied to the combined refrigerators of the no frost type
and with forced ventilation, presenting the freezing compartment FC
disposed above or under the refrigerating compartment RC.
[0032] FIGS. 1-5 illustrates a combined refrigerator of the type
considered herein and in which the freezing compartment FC is
disposed under the refrigerating compartment RC. In these exemplary
applications, the refrigerator comprises a cabinet defined by an
outer case 1 generally made of metallic sheet, an inferiorly
disposed inner case 2, defining the freezing compartment FC, and a
superiorly disposed inner case 3, defining the refrigerating
compartment RC. The two inner cases 2, 3 are separated from each
other and also from the outer case 1 by a thermal insulating filler
4, generally made of injected and expanded polyurethane (foam),
said thermal insulating filler 4 further defining a dividing wall 5
horizontally lying between the inner cases 2, 3.
[0033] The combined refrigerator further comprises an air cooling
compartment 6, provided in a rear region of the freezing
compartment FC and lodging an evaporator 7 and a ventilator 8. The
air cooling compartment 6 presents a circulated air inlet (not
illustrated) and a cool air outlet 6b, disposed downstream of the
fan 8.
[0034] It should be understood that the circulated air inlet and
the cool air outlet 6b can be multiple and arranged in different
manners, according to each refrigerator design, not forming part of
the present invention.
[0035] As it can be noted, in the different ways of carrying out
the invention, the inner cases 2 and 3 present a respective rear
wall 2a, 3a which is kept spaced from the outer case 1 by a
respective extension of the thermal insulating filler 4.
[0036] In the arrangement illustrated in FIGS. 1-5, the cool air
outlet 6b is opened to the interior of a plenum P, usually
occupying the whole width and height of the freezing compartment FC
and spaced therefrom by a thin wall 9, which is generally vertical
and provided with openings 9a adequately dimensioned and positioned
for allowing the cool air to be supplied to the freezing
compartment FC in the evaporator 7.
[0037] The forced cool airflow is supplied to the refrigerating
compartment RC, through the plenum P in the cases in which the
blowing arrangement has the construction illustrated in FIGS. 1-5,
or from the air cooling compartment 6 itself, in the cases in which
said arrangement has the construction illustrated in FIGS. 6-9,
there being further provided conductors (not illustrated) to
promote the return of air from the freezing FC and refrigerating RC
compartments to the air cooling compartment 6.
[0038] The air blowing arrangement of the invention comprises an
air diffusing element 10, generally in the form of a
parallelepipedic body of low height, constructed in EPS or other
adequate material of low thermal conductivity and of easy
moldability, to be lodged in the interior of the thermal insulating
filler 4 between the rear wall 3a of the inner case 3 of the
refrigerating compartment RC and the outer case 1, before the
structure of the refrigerator cabinet is filled with the thermal
insulating material in polyurethane foam.
[0039] In the construction illustrated in FIGS. 1-5, the air
diffusing element 10 has the function of conducting the forced cool
airflow, coming from the plenum P provided inside the inner case 2
of the freezing compartment FC, to the interior of the
refrigerating compartment RC, in an initially ascending and then
descending path. In this construction, the air diffusing element 10
defines an air inlet duct 11, in the form of a longitudinal central
channel, and a pair of air distributing ducts 12, in the form of
longitudinal lateral channel, the air distributing ducts 12
presenting a longitudinal extension shorter than that of the air
diffusing element 10 and all the ducts being opened to a rear face
10a of the air diffusing element 10. In order to form said air
inlet and distributing ducts 11, 12, completed with the rear
closing of the respective channel, a closing plate 20 is
hermetically seated and retained against the rear face 10a of the
air diffusing element 10. Generally, the closing plate 20 is made
of PS and is affixed and sealed against the air diffusing element
10 by means of adhesive tape, not illustrated since it is a well
known prior art solution.
[0040] In all the constructive forms illustrated herein, the air
diffusing element 10 presents a front face lob which is seated and
affixed, generally by adhesive tape (not illustrated), against the
rear wall 3a of the inner case 3 of the refrigerating compartment
RC before injecting the thermal insulating filler 4.
[0041] In the construction of FIGS. 1-5, the air inlet duct 11
presents an air inlet 11a defined next to an end edge of the air
diffusing element 10 and which is maintained in communication with
the interior of the inner case 2 of the freezing compartment FC,
more specifically with the plenum P defined downstream of the fan
8, in order to receive a respective cool airflow coming from the
air cooling compartment 6. It should be understood that the fluid
communication between the plenum P and the air inlet 11a is made
through a duct arrangement D adequately provided through the
dividing wall 5. In this constructive form, the cool air is
upwardly forced along the air inlet duct 11 by the fan 8 until
reaching the opposite end of the air inlet duct 11, where it is
provided with an air outlet 11b turned and opened to the front face
10b of the air diffusing element 10 and aligned with a respective
opening 3b provided in the rear wall 3a of the inner case 3 of the
refrigerating compartment RC, in the upper region of the
latter.
[0042] The refrigerating compartment RC is internally provided with
a case 30 which is affixed against the rear wall 3a of the
respective inner case 3, so as to maintain its interior in fluid
communication with the 25 air outlet 11b of the air inlet duct 11,
through the opening 3b provided in said rear wall 3a.
[0043] Each of the two air distributing ducts 12 presents an air
inlet 12a turned and opened to the front face 10b of the air
diffusing element 10 and aligned with a respective opening 3c (see
FIG. 7) provided in the rear wall 3a of the inner case 3 of the
refrigerating compartment RC. Thus, the cool airflow, which
penetrates in the case 30, through the ascending inlet duct 11, is
directed downwardly through the interior of the two distributing
ducts 12, which are provided with a plurality of air outlets 12b,
turned and opened to the front face lob of the air diffusing
element 10 and aligned with respective windows 3d provided in the
rear wall 3a of the respective inner case 3.
[0044] In the construction of FIGS. 1-5, the forced airflow system
is provided with only one ventilator 8, disposed between the plenum
P and the air cooling compartment 6, and being the responsible for
supplying of cool air to both the freezing compartment FC and the
refrigerating compartment RC. In this construction, the supply of
cool air to the refrigerating compartment RC is controlled by a
flow control means CM, which can be in the form of an obturator 40
mounted inside the case 30 and to be selectively driven from a flow
releasing condition, in which it communicates the case 30 and
consequently the air outlet 11b of the air inlet duct 11 with the
air inlets 12a of the air distributing ducts 12, and a flow
blocking condition, in which it impedes the communication. The
movement of the obturator 40 can be manual or obtained by a driving
means 50 operatively associated with a temperature sensor 60
mounted in the refrigerating compartment RC. When the temperature
in the interior of the refrigerating compartment lowers to a
determined value, the temperature sensor 60 activates the driving
means 50, which displaces the obturator 40 to the closing position.
When the temperature of the refrigerating compartment RC rises
again, reaching a certain value, the temperature sensor reactivates
the driving means 50, which makes the latter return the obturator
40 to the open position. The driving means 50 is generally defined
by a thermostat, whose adjustment is made by an adjusting means 55,
manually operated by the user.
[0045] As it can be observed in FIG. 3, onto the case 30 is adapted
a cover 35, which is provided with an opening 36 for mounting the
adjusting means 55 and also air outlet openings 37.
[0046] In the embodiment of FIGS. 6-9, the freezing compartment FC
is also disposed below the refrigerating compartment RC. In this
construction, the air diffusing element 10 has a construction
similar to that of the embodiment illustrated in FIGS. 1-5, except
for the fact that it does not present the inlet duct 11 and for the
fact that the air inlets 12a of the two air distributing ducts 12
are disposed in a lower region and maintained in communication with
the interior of the case 30 positioned next to the dividing wall 5,
in the lower region of the refrigerating compartment RC, and
maintained in fluid communication with the air cooling compartment
6, by means of a duct D provided through the dividing wall 5. In
this mounting arrangement, the airflow arriving to the case 30 is
forced upwardly through the interior of the distributing ducts 12,
by the operation of a second fan 70, mounted in the interior of the
case 30 and whose driving means, defined by a respective electric
motor 75, is activated by the temperature sensor 60 mounted in the
interior of the refrigerator compartment RC, through a known
control module of the different functions of the appliance and
which can be constructed in any adequate form known in the prior
art.
[0047] The second fan 70 is deenergized, blocking the passage of
cool air to the air distributing ducts 12, when the temperature of
the refrigerating compartment RC lowers to a certain value.
[0048] In this construction, the case 30 does not present the air
outlet openings 37.
[0049] In the construction exemplified in FIGS. 10 and 11, the
freezing compartment FC is provided above the refrigerating
compartment RC and the air diffusing element 10 presents a
construction practically equal to that of the embodiment
illustrated in FIGS. 6-9, occurring only the inversion in the
assembly of the case 30, which in this case is located in the upper
region of the refrigerating compartment RC, just below the dividing
wall 5. In this embodiment, the air coming from the plenum P or
from the air cooling compartment 6 is conducted to the interior of
the case 30 and, from the latter, to the air inlets 12a of the air
distributing ducts 12, flowing downwardly therethrough and being
discharged to the interior of different levels of the refrigerating
compartment RC, through the air outlets 12b and through the windows
3d of the rear wall 3a of the respective inner case 3. In this
construction, the case 30 can lodge a flow control means CM that
can be defined either by an obturator or a second fan 70.
[0050] It should be understood that in the illustrated embodiments
in FIGS. 6-9 and 10 and 11, the diffusing element 10 is rearly
completed by the closing plate 20, its front face 10b being
hermetically seated and affixed against the rear wall 3a of the
respective inner case 3, which is equally provided with openings 3c
aligned with the air inlets 12a of the distributing ducts 12, and
also with the windows 3d aligned with the air outlets 12b of the
distributing ducts 12.
[0051] While only some embodiments of the invention have been
illustrated and described herein, it should be understood that
alterations can be made in the form and physical arrangement of the
elements, provided that they fall within the inventive concept
defined in the claims accompanying the present specification.
* * * * *