U.S. patent application number 14/590318 was filed with the patent office on 2015-05-21 for heat exchanger having a plurality of heat exchange tubes.
The applicant listed for this patent is LG ELECTRONICS INC.. Invention is credited to Hongseong KIM, Hanchoon Lee, Sangyeul Lee, Yongcheol Sa.
Application Number | 20150136367 14/590318 |
Document ID | / |
Family ID | 43858801 |
Filed Date | 2015-05-21 |
United States Patent
Application |
20150136367 |
Kind Code |
A1 |
KIM; Hongseong ; et
al. |
May 21, 2015 |
HEAT EXCHANGER HAVING A PLURALITY OF HEAT EXCHANGE TUBES
Abstract
A heat exchanger is provided which may include a first heat
exchange tube in a pipe shape, including a first fluid inlet, into
which a first fluid may be introduced and flow, and a first fluid
outlet, through which the first fluid may be discharged; a second
heat exchange tube that passes through the first heat exchange
tube, including a second fluid inlet, into which a second fluid may
be introduced and flow, and a second fluid outlet, through which
the second fluid may be discharged; and a third heat exchange tube
that includes a third fluid inlet, into which the second fluid
discharged through the second fluid outlet may be introduced and
flow, and a third fluid outlet, through which the second fluid may
be discharged, the third fluid outlet enclosing an external surface
of the first heat exchange tube.
Inventors: |
KIM; Hongseong; (Seoul,
KR) ; Lee; Sangyeul; (Seoul, KR) ; Sa;
Yongcheol; (Seoul, KR) ; Lee; Hanchoon;
(Seoul, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
LG ELECTRONICS INC. |
Seoul |
|
KR |
|
|
Family ID: |
43858801 |
Appl. No.: |
14/590318 |
Filed: |
January 6, 2015 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
12987410 |
Jan 10, 2011 |
|
|
|
14590318 |
|
|
|
|
Current U.S.
Class: |
165/154 |
Current CPC
Class: |
F28D 7/10 20130101; F28D
7/103 20130101 |
Class at
Publication: |
165/154 |
International
Class: |
F28D 7/10 20060101
F28D007/10 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 12, 2010 |
KR |
10-2010-0002865 |
Claims
1. A heat exchanger, comprising: a first heat exchange tube
including a first fluid inlet, into which a first fluid is
introduced, and a first fluid outlet, through which the first fluid
is discharged; a second heat exchange tube that passes through the
first heat exchange tube and into which a second fluid is
introduced, the second heat exchange tube including a second fluid
outlet, through which the second fluid is discharged; a third heat
exchange tube into which the second fluid is introduced and which
encloses an external surface of the first heat exchange tube and
communicates with the second heat exchange tube, including a third
fluid outlet, through which the second fluid is discharged; a
connection tube that connects the second and third heat exchange
tubes; and a second fluid inlet tube, which is connected to the
connection tube to provide the second and third heat exchange tubes
with the second fluid and to allow a moving direction of the second
fluid in the second heat exchange tube to be the same as that in
the third heat exchange tube.
2. The heat exchanger according to claim 1, wherein the second heat
exchange tube includes one of a straight tube section disposed in
the first heat exchange tube, a bent tube section that is bent at
least once disposed in the first heat exchange tube, or a curved
tube section that is curved at least once at a predetermined
curvature disposed in the first heat exchange tube.
3. The heat exchanger according to claim 1, wherein the first fluid
has a first temperature, and the second fluid has a second
temperature which is lower than the first temperature.
4. A heater comprising the heat exchanger according to claim 1.
5. A cooler comprising the heat exchanger according to claim 1.
6. An evaporator comprising the heat exchanger according to claim
1.
7. A condenser comprising the heat exchanger according to claim 1.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a Divisional application of prior U.S.
patent application Ser. No. 12/987,410 filed Jan. 10, 2011, which
claims priority under 35 U.S.C. .sctn.119 to Korean Application No.
10-2010-0002865, filed in Korea on Jan. 12, 2010, whose entire
disclosure is hereby incorporated by reference.
BACKGROUND
[0002] 1. Field
[0003] A heat exchanger is disclosed herein.
[0004] 2. Background
[0005] Heat exchangers are known. However, they suffer from various
disadvantages.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Embodiments will be described in detail with reference to
the following drawings in which like reference numerals refer to
like elements, and wherein:
[0007] FIG. 1 is a perspective view of a heat exchanger according
to an embodiment;
[0008] FIG. 2 is a cross sectional view of the heat exchanger of
FIG. 1, taken along line II-II;
[0009] FIG. 3 is a longitudinal-sectional view of the heat
exchanger of FIG. 1, taken along line III-III of FIG. 1;
[0010] FIG. 4 is a sectional view of a heat exchanger according to
another embodiment;
[0011] FIG. 5 is a sectional view of a heat exchanger according to
another embodiment;
[0012] FIG. 6 is a perspective view of a heat exchanger according
to another embodiment;
[0013] FIG. 7 is a sectional view of the heat exchanger of FIG. 6;
and
[0014] FIG. 8 is a sectional view of a heat exchanger according to
another embodiment.
DETAILED DESCRIPTION
[0015] Hereinafter, embodiments will be described with reference to
the accompanying drawings. In this disclosure, the size and shape
of components shown in the drawings may be exaggerated for the sake
of clarity and convenience. Further, terms that are specifically
defined in consideration of construction and operation of the
disclosed embodiments may be changed according to an operator's
intention or custom. Definition of such items should be made on the
basis of the entire contents of this disclosure.
[0016] A heat exchanger is an apparatus that reduces a temperature
of a high temperature fluid and increases a temperature of a low
temperature fluid by transferring thermal energy from the high
temperature fluid to the relatively low temperature fluid. Such a
heat exchanger may be utilized in, for example, a heater, a cooler,
an evaporator, or a condenser.
[0017] In such a heat exchanger, a heat transfer medium used to
transfer heat to a fluid to be heated may be referred to as a heat
medium, and a heat transfer medium used to take heat from a fluid
may be referred to as a refrigerant. The heat medium or refrigerant
may be, for example, air or a liquid.
[0018] A double-pipe heat exchanger is a heat exchanger that
includes an internal tube, through which a first fluid may be
introduced or pass, and an external tube, which encloses the
internal pipe and through which a second fluid may be introduced or
pass. Heat exchange may be performed between the fluids using a
side wall of the internal tube as a heat transfer wall.
[0019] The double-pipe heat exchanger may have a low heat exchange
efficiency, because a heat transfer area where an external wall of
the internal tube and a second fluid contact each other may be
small. Therefore, in order to increase the heat transfer
efficiency, a size of the double-pipe heat exchanger must be
enlarged or a length of the double-pipe elongated. However, due to
the increased volume of the double-pipe heat exchanger, it may be
difficult to elongate the length of the double-pipe heat exchanger
or enlarge the size of the double-pipe heat exchanger.
[0020] FIG. 1 is a perspective view of a heat exchanger according
to an embodiment. FIG. 2 is a cross-sectional view of the heat
exchanger of FIG. 1, taken along line II-II of FIG. 1. FIG. 3 is a
longitudinal-sectional view of the heat exchanger of FIG. 1, taken
along line of FIG. 1.
[0021] Referring to FIGS. 1 to 3, a heat exchanger 800 may include
a first heat exchange tube 100, a second heat exchange tube 200,
and a third heat exchange tube 300. In addition, the heat exchanger
800 may include a connection tube 400 that connects the second and
third heat exchange tubes 200 and 300.
[0022] The first heat exchange tube 100 may be a tube into which a
first fluid may be introduced and flow. The first heat exchange
tube 100 may include an upper wall 103, a lower wall 104, and a
side wall 108 disposed between the upper and lower walls and
connecting them. Further, the first heat exchange tube 100 may be
formed in a pipe shape.
[0023] An upper portion of the side wall 108 of the first heat
exchange tube 100 may be connected to a first fluid inlet 102, into
which the first fluid may be introduced and flow, and a lower
portion of the side wall 108 of the first heat exchange tube 100
facing the upper portion of the side wall may be connected to a
first fluid outlet 105, through which the first fluid may be
discharged.
[0024] The first fluid may be introduced through the first fluid
inlet 102 of the first heat exchange tube 100 and discharged
through the first fluid outlet 105. In this embodiment, the first
fluid may have a first temperature.
[0025] The second heat exchange tube 200 may be provided with a
second fluid whose temperature is different from that of the first
fluid. A diameter of the second heat exchange tube 200 may be
formed to be smaller than a diameter of the first heat exchange
tube 100, and the second heat exchange tube 200 may pass through
the first heat exchange tube 100 in a longitudinal direction.
Referring to FIG. 3, the second heat exchange tube 200 may be
disposed at a center of the first heat exchange tube 100 so that
their axes are concentric.
[0026] A second fluid inlet 202, into which the second fluid may be
introduced and flow, may be formed at one end of the second heat
exchange tube 200, and a second fluid outlet 205 may be formed at
the other end of the second heat exchange tube 200, the second
fluid outlet 205 discharging the second fluid to a connection tube
400 described hereinbelow. The second fluid introduced into the
second heat exchange tube 200 through the second fluid inlet 202
may have a second temperature lower than the first temperature of
the first fluid.
[0027] The second heat exchange tube 200 may be a straight tube,
that is, formed in a straight line shape in the first heat exchange
tube 100. Side walls 108, 208 of the first heat exchange tube 100
and the second heat exchange tube 200 may be used as heat transfer
walls, through which heat exchange may be performed between the
first and second fluids.
[0028] The second fluid, which flows through the second heat
exchange tube 200 and connection tube 400, may flow into the third
heat exchange tube 300. A diameter of the third heat exchange tube
300 may be greater than a diameter of the first heat exchange tube
100 and may be disposed outside of the first heat exchange tube 100
to enclose a side wall 108 of the first heat exchange tube 100.
[0029] Referring to FIG. 3, the third heat exchange tube 300 may be
disposed so that axes of the first heat exchange tube 100 and the
third heat exchange tube 300 are concentric. The third heat
exchange tube 300 may have an upper wall 303, a lower wall 304, and
a side wall 308 disposed between the upper and lower walls 303, 304
and connecting them. The side wall 308 may be formed in a
cylindrical shape. A third fluid inlet 302, into which the second
fluid which has passed through the second heat exchange tube 200
may flow, may be formed on the lower wall 304 of the third heat
exchange tube 300, and a third fluid outlet 305, through which the
second fluid may be discharged, may project from the side wall 308
on an upper portion of the third heat exchange tube 300.
[0030] Centers of the upper and lower walls 303, 304 may be open,
so that the first heat exchange tube 100 may be inserted
therethrough. Further, an empty space whose diameter is greater
than that of the first heat exchange tube 100 may be formed in the
third heat exchange tube 300.
[0031] Because the second fluid when it flows into the third heat
exchange tube 300 is in the state in which its heat has been
primarily exchanged with that of the first fluid while in the
second heat exchange tube 200, a temperature of the second fluid
may be slightly higher than that of the second fluid when it flows
into the second heat exchange tube 200.
[0032] The second and third heat exchange tubes 200 and 300 may be
formed as one body. Alternatively, the second and third heat
exchange tubes 200 and 300 may communicate with each other via the
connection tube 400.
[0033] The connection tube 400 may connect the second and third
heat exchange tubes 200 and 300 so that the second fluid having
passed through the second heat exchange tube 200 may flow into the
third heat exchange tube 300. That is, one end of the connection
tube 400 may communicate with the second fluid outlet 205 of the
second heat exchange tube 200, and the other end of the connection
tube 400 may communicate with a third fluid inlet 302 of the third
heat exchange tube 300.
[0034] FIG. 4 is a sectional view of a heat exchanger according to
another embodiment. The heat exchanger 800A shown in FIG. 4 has
substantially the same construction as the heat exchanger shown in
FIG. 3, except for the second heat exchange tube. Accordingly, like
reference members have been used to indicate like elements, and
repetitive disclosure omitted.
[0035] Referring to FIG. 4, in the heat exchanger 800A, the second
heat exchange tube 220 disposed in the first heat exchange tube 100
may include a bent tube, which may be bent at least once in the
first heat exchange tube 100.
[0036] FIG. 5 is a sectional view of a heat exchanger according to
another embodiment. The heat exchanger 800B shown in FIG. 5 has
substantially the same construction as the heat exchanger shown in
FIG. 3, except for the second heat exchange tube. Accordingly, like
reference members have been used to indicate like elements, and
repetitive disclosure omitted.
[0037] Referring to FIG. 5, in the heat exchanger 800B, the second
heat exchange tube 230 disposed in the first heat exchange tube 100
may include a curved tube having at least one curve, which is
curved at a predetermined curvature, in the first heat exchange
tube 100.
[0038] FIG. 6 is a perspective view of a heat exchanger according
to another embodiment. FIG. 7 is a sectional view of the heat
exchanger of FIG. 6. Referring to FIGS. 6 and 7, the heat exchanger
800C may include a high temperature heat exchange tube 500 and a
low temperature heat exchange tube 600.
[0039] The high temperature heat exchange tube 500 may be a tube
into which a first fluid, being the target fluid, may be introduced
and flow. The high temperature heat exchange tube 500 may include
an upper wall 503, a lower wall 504, and a side wall 508 disposed
between the upper and lower walls 503, 504 and connecting them. The
high temperature heat exchange tube 500 may be formed in a
cylindrical shape. A first fluid inlet 502, into which the first
fluid may be introduced and flow, may project from the side wall
508 of an upper portion of the high temperature heat exchange tube
500, and a first fluid outlet 505, through which the first fluid
may be discharged, may project from the sidewall 508, which may be
a heat transfer wall, on a lower portion of the high temperature
heat exchange tube 500.
[0040] Further, an empty space having the same shape as the high
temperature heat exchange tube 500 may be formed therein, and the
first fluid inlet 502 and first fluid outlet 505 may communicate
with the empty space. Accordingly, the first fluid introduced into
the high temperature heat exchange tube 500 through the first fluid
inlet 502 may flow toward the first fluid outlet 505 through the
empty space.
[0041] The low temperature heat exchange tube 600 may include a low
temperature heat exchange tube portion 610, a connection portion
620, and a second low temperature heat exchange tube portion 630.
The first low temperature heat exchange tube portion 610, the
second low temperature heat exchange tube portion 630, and the
connection portion 620 may be formed as one body. The low
temperature heat exchange tube 600 may be provided with the second
fluid whose temperature is lower than that of the first fluid.
[0042] The first low temperature heat exchange tube portion 610 may
have a diameter which is smaller than a diameter of the high
temperature heat exchange tube 500, and may pass through the high
temperature heat exchange tube 500 in a longitudinal direction and
be disposed therein.
[0043] The first low temperature heat exchange tube portion 610 may
be disposed in a center of the high temperature heat exchange tube
500 so that the axes of the first low temperature heat exchange
tube portion 610 and the high temperature heat exchange tube 500
are concentric. A second fluid inlet 612, into which the second
fluid may be introduced and flow, may be formed at one end of the
first low temperature heat exchange tube portion 610.
[0044] The first low temperature heat exchange tube portion 610 may
be in the form of a straight tube formed in a straight line shape
in the high temperature heat exchange tube 500, a bent tube which
may be bent at least once in the high temperature heat exchange
tube 500, or a curved tube which may be curved at least once at a
predetermined curvature in the high temperature heat exchange tube
500.
[0045] The connection portion 620 may be a "U"- shaped tube that
connects the first low temperature heat exchange tube portion 610
and the second low temperature heat exchange tube portion 630.
Further, the connection portion 620 may extend from the other end
of the first low temperature heat exchange tube portion 610
opposite the second fluid inlet 612 to a bottom of the second low
temperature heat exchange tube portion 630.
[0046] The second fluid having passed through the first low
temperature heat exchange tube portion 610 and the connection
portion 620 may flow into the second low temperature heat exchange
tube portion 630. The second low temperature heat exchange tube
portion 630 may have a diameter greater than a diameter of the high
temperature heat exchange tube 600 and may be disposed outside of
the high temperature heat exchange tube 500 to enclose the side
wall 508 (a heat transfer surface) of the high temperature heat
exchange tube 500. Axes of the second low temperature heat exchange
tube portion 630 and the high temperature heat exchange tube 500
may be concentric.
[0047] The second low temperature heat exchange tube portion 630
may have an upper wall 603, a lower wall 604, and a side wall 608
formed between the upper and lower walls 603, 604 and connecting
them. The second low temperature heat exchange tube portion 630 may
be formed in a cylindrical shape. A second fluid outlet 635 may
project from an upper portion of the second low temperature heat
exchange tube portion 630, from which the second fluid having
passed through the first low temperature heat exchange tube portion
610, the connection portion 620, and the second low temperature
heat exchange tube portion 630 may be discharged.
[0048] Centers of the upper and lower walls 603, 604 of the second
low temperature heat exchange tube portion 630 may be open so that
the high temperature heat exchange tube 500 may be inserted
therethrough, and an empty space may be formed therein whose
diameter is greater than a diameter of the high temperature heat
exchange tube 500 in the second low temperature heat exchange tube
portion 630. The empty space may communicate with the second fluid
outlet 635.
[0049] Because the second fluid having flowed into the second heat
exchange tube portion 630 is in a state in which its heat has been
primarily exchanged with that of the first fluid in the first heat
exchange tube portion 610, the temperature of the second fluid may
be slightly higher than the temperature of the second fluid when it
is introduced into the first heat exchange tube portion 610.
[0050] FIG. 8 is a sectional view of a heat exchanger according
another embodiment. Referring to FIG. 8, a heat exchanger 800D may
include a first heat exchange tube 100, into which a first fluid,
being the objective fluid or target, may be introduced and flow, a
second heat exchange tube 200, which may be disposed in the first
heat exchange tube 100 and into which a second fluid may flow, a
third heat exchange tube 300, into which the second fluid, whose
temperature is substantially the same as a temperature of the fluid
introduced into the first heat exchange tube 100, may flow and
which encloses an external surface of the first heat exchange tube
100, and a connection tube 700 that connects the second and third
heat exchange tubes 200 and 300 and provides the second and third
heat exchange tubes 200 and 300 with the second fluid having the
same temperature.
[0051] The first heat exchange tube 100 of the heat exchanger 800D
shown in FIG. 8 has substantially the same shape and construction
as the heat exchangers according to the previous embodiments.
Accordingly, like reference numerals have been used to indicate
like elements and repetitive descriptions of the first heat
exchange tube 100 have been omitted.
[0052] Referring to FIG. 8, a second heat exchange tube 200 may
pass through the first heat exchange tube 100 in a longitudinal
direction and be disposed in the first heat exchange tube 100. The
second heat exchange tube 200 may be disposed in a center of the
first heat exchange tube 100 such that the axes of the first heat
exchange tube 100 and the second heat exchange tube 200 may be
concentric.
[0053] A second fluid outlet 207 may be formed on or at one end of
the second heat exchange tube 200, from which the second fluid
having flowed into the second heat exchange tube 200, may be
discharged.
[0054] The second heat exchange tube 200 may include have a
straight tube formed in a straight line shape in the first heat
exchange tube 100, a bent tube which may be bent at least once in
the first heat exchange tube 100, or a curved tube which may be
curved at least once at a predetermined curvature in the first heat
exchange tube 100.
[0055] The third heat exchange tube 300 may be disposed outside of
the first heat exchange tube 100 to enclose a side wall 108 of the
first heat exchange tube 100. The third heat exchange tube 300 may
also be disposed to have concentric axes with the first heat
exchange tube 100.
[0056] The third heat exchange tube 300 may include an upper wall
303, a lower wall 304, and a side wall 308 that is formed between
the upper and lower panels and connecting them. The third heat
exchange tube 300 may be formed in a cylindrical shape. A third
fluid outlet 307, from which the second fluid may be discharged,
may project from the side wall 308 on an upper portion of the third
heat exchange tube 300. Further, centers of the upper and lower
walls 303, 304 of the third heat exchange tube 300 may be open so
that the first heat exchange tube 100 may be inserted into them,
and an empty space may be formed therein whose diameter is greater
than a diameter of the first heat exchange tube 100. The third
fluid outlet 307 may communicate with the empty space.
[0057] The second fluid may flow into the second and third heat
exchange tubes 200 and 300 so that both tubes 200 and 300 are
filled with the same temperature fluid, and the heat exchanger 800D
of this embodiment may have a much higher heat exchange efficiency
in comparison to prior art heat exchangers.
[0058] According to this embodiment, the second and third heat
exchange tubes 200 and 300 may be formed as one body.
Alternatively, the second and third heat exchange tubes 200 and 300
may communicate with each other via a connection tube 700. The
connection tube 700 may connect the second heat exchange tube 200
and third heat exchange tube 300 in order to provide the second
heat exchange tube 200 and third heat exchange tube 300 with the
second fluid so that both tubes 200 and 300 are filled with the
same temperature fluid. That is, one end of the connection tube 700
may be connected to an end of the second heat exchange tube 200
opposite the second fluid outlet 207, and an other end of the
connection tube 400 may be connected to the lower wall 304 of the
third heat exchange tube 300.
[0059] The second fluid inlet 702 may communicate with a middle
portion of the connection tube 700 so that the second fluid, whose
temperature is higher than that of the first fluid, may flow into
the connection tube 700.
[0060] According to the above detailed description, the heat
exchanger according to embodiments disclosed herein may have the
second and third heat exchange tubes disposed inside and outside of
the first heat exchange tube into which the first fluid, which may
be the objective or target fluid, may flow, heat of the second
fluid being exchanged with that of the first fluid, the second
fluid flowing into the second and third heat exchange tubes, so
that a heat transfer area of the heat transfer wall on which the
first fluid and second fluids contact each other becomes increased.
Then, a heat exchange performance may be increased compared with a
prior art double-pipe heat exchanger having the same volume and
length.
[0061] Embodiments disclosed herein provide a heat exchanger
capable of increasing a heat exchange performance by increasing a
heat transfer area on which first and second fluids contact each
other and heat exchange is performed.
[0062] Embodiments disclosed herein further provide a heat
exchanger that may include a first heat exchange tube that is in a
pipe shape, including a first fluid inlet, into which a first fluid
flows, and a first fluid outlet, through which the first fluid is
discharged; a second heat exchange tube that passes through the
first heat exchange tube, including a second fluid inlet, into
which a second fluid flows, and a second fluid outlet, through
which the second fluid is discharged; and a third heat exchange
tube that includes a third fluid inlet, into which the second fluid
discharged through the second fluid outlet flows again, and a third
fluid outlet, through which the second fluid is discharged, the
third fluid outlet enclosing an external surface of the first heat
exchange tube.
[0063] Embodiments disclosed herein provide a heat exchanger that
may include a high temperature heat exchange tube including a first
fluid inlet, into which a first fluid flows, and a first fluid
outlet, through which the first fluid is discharged; and a low
temperature heat exchange tube including a first low temperature
heat exchange tube having a second fluid inlet, into which a second
fluid flows, and passing through the high temperature heat exchange
tube, and a second low temperature heat exchange tube that
communicates with the first low temperature heat exchange tube,
encloses an external surface of the high temperature heat exchange
tube and has a second fluid outlet, through which the second fluid
is discharged.
[0064] Embodiments disclosed herein further provide a heat
exchanger that may include a first heat exchange tube including a
first fluid inlet, into which a first fluid flows, and a first
fluid outlet, through which the first fluid is discharged; a second
heat exchange tube that passes through the first heat exchange tube
and into which the second flows, including a second fluid outlet,
through which the second fluid is discharged; and a third heat
exchange tube, into which the second fluid flows and which encloses
an external surface of the first heat exchange tube and
communicates with the second heat exchange tube, including a third
fluid outlet, through which the second fluid is discharged, wherein
a second fluid inlet tube is included, which is connected to a
connector to connect the second and third heat exchange tubes to
provide the second and third heat exchange tubes with the second
fluid.
[0065] Any reference in this specification to "one embodiment," "an
embodiment," "example embodiment," etc., means that a particular
feature, structure, or characteristic described in connection with
the embodiment is included in at least one embodiment of the
invention. The appearances of such phrases in various places in the
specification are not necessarily all referring to the same
embodiment. Further, when a particular feature, structure, or
characteristic is described in connection with any embodiment, it
is submitted that it is within the purview of one skilled in the
art to effect such feature, structure, or characteristic in
connection with other ones of the embodiments.
[0066] Although embodiments have been described with reference to a
number of illustrative embodiments thereof, it should be understood
that numerous other modifications and embodiments can be devised by
those skilled in the art that will fall within the spirit and scope
of the principles of this disclosure. More particularly, various
variations and modifications are possible in the component parts
and/or arrangements of the subject combination arrangement within
the scope of the disclosure, the drawings and the appended claims.
In addition to variations and modifications in the component parts
and/or arrangements, alternative uses will also be apparent to
those skilled in the art.
* * * * *