Title: Reclining chair system
Abstract: A reclining chair system with a standard assembly supporting seat and backrest assemblies, which are pivotally mounted to each other and capable of providing a rocker effect to a user. A strut assembly provides substantially a bounce free shock absorbing function by using two coaxially disposed compressible and resilient members that are compressed sequentially. A headed shaft with a step limits the compression of the first member. The arrangement permits a volumetrically efficient operation while preventing excessive fatigue of the member. An adjustment mechanism permits a user to readily set the relative angular position of backrest and seat with respect to the standard (and consequently the horizontal plane) depending on the location of the chair system.
Patent Number: 6,942,295 Issued on 09/13/2005 to Lopez
| Inventors:
|
Lopez; Guillermo E. (Avenida 5BN #20N-65, Cali Valle, CO)
|
| Appl. No.:
|
851799 |
| Filed:
|
May 24, 2004 |
| Current U.S. Class: |
297/300.1; 267/141.1; 297/300.3; 297/300.5; 297/302.1; 297/302.2; 297/302.4; 297/316; 297/326 |
| Intern'l Class: |
A47C 001/02.4; A47C 001/02; F16F 007/00 |
| Field of Search: |
297/3002,300.3,300.5,301.2,301.4,302.2,302.4,302.1,326,327,316
248/618,619
267/141.1,293,294
|
References Cited [Referenced By]
U.S. Patent Documents
| 1767042 | Jun., 1930 | Bitzenburger.
| |
| 2595582 | May., 1952 | Hoven et al.
| |
| 2628662 | Feb., 1953 | Morris et al.
| |
| 4200332 | Apr., 1980 | Brauning.
| |
| 5040846 | Aug., 1991 | Finney et al.
| |
| 5288128 | Feb., 1994 | Smith et al.
| |
| 5584533 | Dec., 1996 | Schrewe.
| |
| 5681085 | Oct., 1997 | Nahoul.
| |
| 6443437 | Sep., 2002 | Beyene et al.
| |
| 2003/0102703 | Jun., 2003 | Tenenboym et al.
| |
Primary Examiner: Cuomo; Peter M.
Assistant Examiner: Burnham; Sarah C.
Attorney, Agent or Firm: Sanchelima; J., Bordas; A.
Claims
1. A reclining chair system, comprising:
A) a seat assembly having front, rear and two lateral sides each of said lateral
sides including a perpendicularly mounted rocker pin;
B) an L-shape backrest assembly having lower and upper portions substantially
perpendicular to each other and said backrest assembly being pivotally mounted
to said seat assembly, said lower portion cooperatively coacting with said rocker
pin to cause said seat assembly to move angularly in proportion with a backward
angular movement of said upper portion thereby achieving a rocker effect;
C) a standard assembly;
D) supporting means including an L-shape member having first and second perpendicularly
disposed arms, said first arm being pivotally mounted to said seat assembly and
to said lower portion, said first arm being rigidly mounted to said standard assembly,
and said second arm having a distal end mounted to said standard assembly, said
supporting means further including first and second stopper means for limiting
the rotation between two extreme positions of said seat and backrest assemblies,
respectively, with respect to said supporting means; and
E) a strut assembly having first and second ends, said first end being pivotally
mounted to said lower portion at a point separated a predetermined distance from
the pivoting point of said supporting means with said seat and backrest assemblies,
and said second end being mounted to said second arm.
2. The reclining chair system set forth in claim 1 wherein said strut assembly
includes first and second compressible and resilient members, abuttingly and coaxially
disposed with respect to each other wherein the distal ends of said first and second
compressible and resilient members define said first and second ends of said strut assembly.
3. The reclining chair system set forth in claim 2 wherein said strut assembly
includes first and second spacers at said distal ends.
4. The reclining chair system set forth in claim 3 wherein said strut assembly
includes a central spacer between said first and second resilient members.
5. The reclining chair system set forth in claim 4 wherein said first and second
spacers, first and second compressible and resilient members and said central spacer
include each a coaxially aligned central through opening and said strut assembly
further includes an elongated shaft having a headed end and a distal termination,
said shaft being receivable through said coaxially aligned central through opening
and said headed termination being cooperatively disposed to coact with said first
spacer and said header termination defining said first end of said strut assembly.
6. The reclining chair system set forth in claim 5 wherein said shaft includes
a step defining first and second shaft portions, said first shaft portion being
adjacent to said distal termination and having a smaller diameter than said second
shaft portion, and said central spacer having a diameter smaller than said second
shaft portion but larger than the diameter of said first shaft portion, said step
cooperatively coacting to prevent further compression of said first compressible
and resilient member beyond a predetermined magnitude.
7. The reclining chair system set forth in claim 6 wherein the compression of
said first and second compressible and resilient members cause the latter to expand
laterally and coact with said first and second shaft portions, respectively, thereby
providing a gripping action that stabilizes the relative position of said shaft.
8. The reclining chair system set forth in claim 1 further including adjusting
means for changing the relative position of said supporting means with respect
to said standard assembly thereby adjusting the angular position of said backrest
and seat assemblies with respect to said standard assembly.
9. The reclining chair system set forth in claim 8 wherein said adjusting means
includes a plate with third and fourth ends and first and second surfaces, including
at least two through holes positioned adjacent to said third end and a first pin
perpendicularly mounted on said first surface adjacent to said fourth end and a
second pin perpendicularly mounted to said second surface at a predetermined distance
between said through holes and said first pin, said first pin being mounted to
said standard assembly said second pin cooperatively coacting with said supporting
means and further including fastening means that cooperate with said through holes
to set said adjusting means at selected predetermined positions so that the relative
position of said supporting means with respect to said standard is adjusted.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a system for a reclining chair, and more particularly,
to such a system that is substantially bounce free and adjustable.
2. Description of the Related Art
Many systems for reclining chairs have been developed in the past. Their purpose
is to provide extra-comfort, involving diverse reclining mechanisms, which make
events, such as watching movies, a more enjoyable experience. These reclining mechanisms
may be classified in two types: "Rockers" (those that involve simultaneous reclining
of the backrest and seat assemblies) and "loungers" (those which only recline the
backrest), according to industry terms and definitions. In general, they allow
a user to lean backwards as he or she sits in, and recuperate their original (upright)
position when he or she leans forward and/or stand up. Available cinema "rocker"
or "lounger" chairs in the art, however, involve reclining actions that are either
bouncy, "springy", hard to—effortlessly—operate or do not provide a
stable and comfortable position to the user.
On the other hand, mainstream cinema "rockers" and "loungers", that include a
backrest, cushions and stanchions upon which the first two are mounted, come totally
disassembled (stanchions, cushions backrests and rocking mechanisms are typically
shipped individually). Installers must assemble the cushions, backrests and rocking
mechanisms on the stanchions, on site, involving multiple manipulations, fastening
and subassembly operations.
Also, so called cinema "rockers" and "loungers" have setup limitations with
respect to the relative position of the chair vis-à-vis the movie screen or
similar structure. Modern theaters feature high slope settings. This means that
the chairs for the spectators on the first row and the ones on the last row of
the room require different inclination angles, to optimize their visual line to
the screen. Mainstream cinema chairs (including "rockers" and "loungers") allow
for adjustment of the backrests, but the seats cannot be adjusted in the same fashion.
At best, this adjustment is undertaken in a separate operation, keeping in mind
that the relative angle between the backrest and seat needs to stay the same to
provide an appropriate and comfortable posture to the user (if only the backrest
is adjusted, this angle changes).
None of the existing chairs in the prior art, however, include an adjustable
plate assembly to regulate the inclination angle of the seat and backrest simultaneously,
and a supporting plate that holds the backrest and seat together to simplify installation
and maintenance. Additionally, a volumetrically efficient rocker strut assembly
with bounce-free characteristics is claimed herein. The resulting chair guarantees
an effortless reclining action for the user, ease of installation and maintenance
and better comfort configuration conforming to the theater's slope configuration.
Applicant believes that one related reference corresponds to U.S. Pat.
No. 5,040,846 issued to Finney et al. on Aug. 20, 1991 for a rocker chair. Finney's
patented invention includes a rocking chair with a standard on each side for supporting
the chair. A contoured spring guide is attached to each standard that provides
a support and deflection profile for leaf springs held in trolleys on each side
of the chair. A wing plate extends upwardly from each trolley and terminates in
a guide surface. A guide roller is mounted near the top of each standard and provides
lateral and longitudinal support for the guide surface the wing plate on each side
of the chair. A chair seat is mounted on each trolley and a chair back is mounted
between each wing plate. The chair seat and chair back move in unison in a rocking
manner as the leaf springs increase and decrease contact along the surface of each
spring guide. However, it differs from the present invention because: A) the reclining/rocking
effect is attained by a leaf spring instead of the novel strut assembly of the
present invention, B) design, manufacture and relative disposition of the fixed
and moving elements that allow the rocking effect are different as the figures
and descriptions in the present document and these shown in U.S. Pat. No. 5,040,846,
and C) the patented chair includes a standard architecture, with the seat and backrest
as separate subassemblies, requiring additional installation time.
Applicant believes that another related reference corresponds to U.S. Pat.
No. 5,288,128 issued to Smith et al. on Feb. 22, 1994 for reclining theater seating.
Smith's patented invention includes backrest and seat mounted upon spaced-apart
wings having a substantially inverted, truncated, right triangular shape. The wings
are respectively pivotally mounted to the inner sides of a pair of spaced-apart
stanchions such that in the upright position of the chair the axis upon which the
seat is mounted to the wings is located close to and substantially directly vertically
above the axis upon which the wings are pivotally mounted to the respective stanchions.
However, it differs from the present invention because: A) the reclining/rocking
effect is implemented with a spring instead of a strut assembly as in the present
invention, B) design, manufacture and relative disposition of the fixed and moving
elements that allow the rocking effect are different as the figures and descriptions
in the present document and the one disclosed in U.S. Pat. No. 5,288,128 show,
and C) the patented chair includes a standard architecture with the seat and backrest
as separate subassemblies.
None of them, however, includes an adjustable plate assembly, a supporting plate
and rocker strut assembly with the characteristics claimed herein. The result is
a substantially bounce free adjustable reclining chair that has a pre-assembled configuration.
Other patents describing the closest subject matter provide for a number of
more or less complicated features that fail to solve the problem in an efficient
and economical way. None of these patents suggest the novel features of the present invention.
SUMMARY OF THE INVENTION
It is one of the main objects of the present invention to provide a system for
reclining chair of the type that permits the user to assume a reclined position
upon occupying the chair, providing a steady, effortless reclining action that
results in a comfortable and stable position.
It is another object of this invention to provide a system for a reclining chair
that results in easy installation and maintenance procedures, including replacing
the strut assemblies that serve as a dampening element for the reclining system.
It is still another object of the present invention to provide a rocker system
for a cinema chair that allows simultaneous, but sequential reclining of the backrest
and seat, starting with the backrest and continuing with the seat allowing movement
of both simultaneously to a comfortable position, but limiting the motion of the
seat so the user's feet do not come off the ground when leaning back.
It is yet another object of this invention to provide a system for a reclining
chair that allows easy and simultaneous adjustment of the initial inclination angle
of the backrest and seat cushion relative to the floor, to optimize the visual
line to the screen or stage.
It is another object of this invention to provide a system for a cinema or auditorium
reclining chair that permits the user to readily configure the chair to either
have a: A) rocker (backrest and cushion recline simultaneously) or B) lounger (only
backrest reclines), without requiring additional chair re-design, re-configuration
or parts.
It is yet another object of this invention to provide such a device that is inexpensive
to manufacture and maintain while retaining its effectiveness.
Further objects of the invention will be brought out in the following part
of the specification, wherein detailed description is for the purpose of fully
disclosing the invention without placing limitations thereon.
BRIEF DESCRIPTION OF THE DRAWINGS
With the above and other related objects in view, the invention consists in
the details of construction and combination of parts as will be more fully understood
from the following description, when read in conjunction with the accompanying
drawings in which:
FIG. 1 represents an isometric view of an assembled chair including foam pads,
standards, armrests including their cup holders, backrest and seat assembly.
FIG. 2 is an isometric view of the chair represented in FIG. 1 without foam pads.
FIG. 3 shows an isometric exploded view of the reclining chair system object
of the present application.
FIG. 3A shows a side exploded elevational view of the chair represented in FIG.
2 with seat and backrest assemblies separated from the standard assembly.
FIG. 4 shows an isometric exploded view of the backrest and seat assemblies
of the chair shown in previous figures.
FIG. 4A is an enlarged isometric view of the pivoting point showing the stopper
and sleeves being mounted to their corresponding openings in the lateral side of
the seat assembly (partially shown).
FIG. 5 is an isometric view showing the support plate assembly with rocker strut
and position plate assemblies mounted thereto.
FIG. 5A represents a side elevational view of the assemblies shown in FIG. 5.
FIG. 6 illustrates an isometric view of the rocker strut assembly.
FIG. 6A is a cross section view of the rocker strut assembly in a rest position.
FIG. 6B is a cross section view of the rocker strut assembly when upper rubber
cylinder is compressed to approximately 30%.
FIG. 6C is a cross section view of the rocker strut assembly when upper and
lower rubber cylinders are in maximum permitted compression.
FIG. 7 represents an exploded view of the rocker strut assembly.
FIG. 8 shows a side elevational view of the chair's standard assembly with the
adjustable plate assembly mounted thereto.
FIG. 8A shows an isometric exploded view of the standard assembly and adjustable
plate assembly represented in FIG. 8.
FIG. 8B shows an isometric view of the standard assembly and adjustable plate
assembly represented in FIG. 8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, where the present invention is generally
referred to with numeral
10, it can be observed that it basically includes
backrest assembly
20, seat assembly
30, standard assembly
40,
seat and backrest supporting chassis plate assembly
60, position plate assembly
70, and rocker strut assembly
80, as best seen in FIGS. 1,
2
and
3.
As shown in FIGS. 3 and 3A, backrest assembly
20 is a unitary piece having
a side elevational shape that resembles the letter "L" with a substantially rectangular
frame
22. Preferably, frame
22 is made with steel tubular members
mounted together, preferably by welding. Lower portion
24 is pivotally mounted
to seat assembly
30 at a point that coincides with opening
35 and
through opening
26, as best seen in FIG. 4A. Lower portion
24 also
includes rocker strut securing opening
27, as seen in FIG. 4.
As seen in FIGS. 3,
3A,
4 and
4A, seat assembly
30
includes seat member
32 with lateral sides
34. Sides
34 include
openings
35, rocker pin
36 and stopper pins
37. Pins
36
and
37 are perpendicularly mounted to sides
34, as best seen in FIG.
4A. Preferably, rocker pin
36 and stopper pins
37 include cushion
sleeves
36′ and
37′ to reduce noise and avoid metal-to-metal
contact. Spacing bearing tubes
38 are housed within openings
35,
as best seen in FIG. 4. As will be discussed below, passing pin
160 passes
through openings
66,
26 and
35.
Standard assembly
40 is typically (but not necessarily) mounted to
a substantially horizontal supporting surface (not shown). As shown in FIG. 8,
standard assembly
40 preferably extends upwardly and rearwardly at an angle
between 70° and 80° with respect to a horizontal surface. Assembly
40
includes base
46 typically anchored to a substantially horizontal surface,
leg member
42 mounted to base
46 at one end, and armrest member
44
pivotally mounted to the other end of member
42 with pivoting bracket
48.
Pivoting bracket
48 is mounted to the upper end of member
42, as
shown in FIG. 8. As best seen in FIG. 8A, bracket
48 includes parallel and
spaced apart plates
49 for cooperatively receiving end
44′
therein between. Pin
47 passes through holes
47′ and
147
thereby pivotally supporting end
44′. Stopper pin
45 passes
through holes
45′ and coacts with cutout
145 to limit the
pivoting angle. Preferably, end
44" includes a cup holder
149 mounted
thereon. Leg member
42 has preferably a substantially square cross section
with walls
142,
144,
146 and
148. Leg member
42
also includes axle receiving opening
41 and opening
43 in each of
walls
142 and
144. Leg member
42 also includes mounting plate
member
50, which has a substantially triangular shape in the preferred embodiment.
Mounting plate member
50 is rigidly mounted to wall
146 a predetermined
distance from base
46. Mounting plate member
50 includes upper surface
52 with supporting pin
54 perpendicularly mounted thereon, adjacent
to its distal end. Upper surface
52 may include more than one supporting
pin
54 if there is a contiguous chair.
As best seen in FIGS. 8 and 8A plate assembly
70 includes plate
72
with axle
74 and axle
76 mounted to plate
72. Sleeve
76′
covers axle
76 and avoids metal to metal contact with bay
260, as
shown in FIGS. 5 and 5A. As best seen in FIG. 8A, plates
72 are mounted
to walls
142 and
144, which are in a parallel and spaced apart relationship
with respect to each other. If there are two contiguous chairs, then two plates
72 are needed. Plate
72, includes narrow end
71, wide end
73, and setting openings
78. One end of axle
74 is perpendicularly
mounted to one surface of plate
72 at a predetermined distance from and
substantially adjacent to narrow end
71. The other end of axle
74
is received by opening
41 of standard assembly
40, as best seen in
FIG. 8A. One end of axle
76 is eccentric and perpendicularly mounted to
the opposite surface of plate
72. The other end of axle member
76
is engaged within bay
260, between bifurcated fingers
163 and
263
(also between
163′ and
263′) of seat supporting chassis
plate assembly
60, as best seen in FIGS. 5 and 5A. Setting openings
78
are aligned next to wide end
73 in a space apart relationship with respect
to each other. Fastening member
79 passes through one of setting openings
78 and is secured to standard assembly
40 through opening
43,
as best seen in FIG. 8B. Depending on the angle desired for setting backrest assembly
20 as well as seat assembly
30 with respect to standard assembly
40, a cooperative opening
78 is selected. Typically, the person who
installs reclining chair system
10 selects this setting depending on the
location with respect to the stage or screen.
The purpose of standard assembly
40 is to provide support for backrest
and seat assemblies
20 and
30, (which are joined together by chassis
plate assembly
60) as well as for armrest member
44. Assembly
40
constitutes the chair's structural support to the floor or supporting surface.
Standard assembly
40 provides two points of support for: a) plate assembly
70 on side walls
142 or
144; and b) mounting plate member
50.
As seen in FIGS. 4,
5 and
5A, chassis or supporting plate assembly
60 includes identical plate members
62, kept in a spaced apart and
parallel relationship with respect to each other with separators
161. Separators
161 are preferably welded to plate members
62. Plate member
62
has an L-shape with arms
61 and
63 substantially perpendicular to
each other. Arm
61 is wider than arm
63. Arm
61 includes through
openings
64,
65 and
66. Plate
140 is rigidly mounted
to arms
63. Plate
140 has central opening
141, as best seen
in FIG. 5A. Openings
64 and
65 removably receive rocker pin
36
and stopper pins
37, respectively, as best seen in FIG. 3A. As best seen
in FIG. 4, seat supporting chassis plate assembly
60 also includes passing
pin
160 with ends
162 and
168. End
162 includes connecting
member
164 rigidly mounted thereon. Connecting member
164 includes
opening
166. End
168 passes through openings
66 (of the outer
plate), opening
26, opening
66 (of the inner plate) and opening
35.
Connecting member
164 at end
162 of pin passing
160 includes
opening
166 with cooperative dimensions to receive supporting pin
54,
as best seen in FIG. 2.
Stopper pins
169 and
269 are mounted between plate members
62 and are covered with sleeves
169′ and
269′,
respectively to avoid metal-to-metal contact. Pins
169 and
269 are
kept a place with locking rings
167 and
267, respectively. Pins
169
and
269 coact with lower portion
24 to limit the pivoting action
of the latter.
Rocker strut assembly
80, shown in FIGS. 6 and 7, cushions the weight
of a user. Space in the area where strut assembly
80 is installed is very
limited. The present invention addresses this problem. As best seen in FIG. 7,
rocker strut assembly
80 includes stepped or headed shaft member
86
with head end
87, distal end
89 and portions
87′ and
89′ next to head end
87 and distal end
89, respectively.
Step
85 divides portions
87′ and
89′. Portion
87′ has a larger diameter than portion
89′. Head end
87 is pivotally mounted to backrest assembly
20 at rocker strut securing
opening
27, as seen in FIG. 5A.
As best seen in FIG. 7, strut assembly
80 includes upper spacer
92
that has, in the preferred embodiment, a circular shape with perforations
93
and central opening
92′ to slidably receive shaft
86 therethrough.
Spacer
92 is preferably made out of nylon. Distal end
89 of headed
shaft member
86 passes through ball joint
88. Ball joint
88
is made out of a hard plastic or polymer base material such as nylon. Sandwiched
between ball joint
88 and upper spacer
92 are upper rubber cylinder
82, middle spacer
94, lower rubber cylinder
84 and lower spacer
95 with their respective coaxially aligned central through openings
82′,
94′,
84′ and
95′. Cylinders
82
and
84 are made out of a compressible and resilient material such as rubber
or equivalent. Central through openings
94′ of middle spacer
94
has a smaller diameter than the diameter of portion
87′. The weight
of a user causes step
85 to travel initially towards middle spacer
94,
as best seen in FIGS. 6A,
6B and
6C.
After headed shaft member
86 has traveled a predetermined distance no
further compression of cylinder
82 is allowed by spacer
94. This
prevents additional compression on compressible and resilient upper rubber cylinder
82 preferably not beyond its 30% compression, in the preferred embodiment.
It has been found that rubber cylinders deteriorate more rapidly if their compression
exceeds 30% of their height. In the same fashion, compression of cylinder
84
is limited by stopper
169, as lower member
24 leans upon it. Upper
and lower rubber cylinders
82 and
84 compress against each other
with the weight of a user and resiliently recuperate their shapes upon the release
of the weight.
In practice, the inventor observed that, as the chair user lean back, thus exerting
pressure on the strut assembly, upper cylindrical member
82 compressed more
before the lower rubber cylinder
84. This required the use of step
85
to limit the compression of upper cylinder member
82. Also, the inwardly
expansion of the upper cylindrical member
82 touches shaft
86 creating
a braking effect that contributes to the stabilization of the final compressed
state and position of the chair. In a way, this gripping effect makes the rotation
or movement of backrest assembly
20 (and seat assembly
30) less dependant
on the application or release of the weight of the user. Member
84 also
touches shaft
86 in the same manner, although to a lesser extent, given
the smaller diameter of shaft
86 between step
85 and distal end
89.
The braking effect is present in most of the compression and decompression length
of the strut (assuming the user weighs more than what is required to deform cylinder
82 to the limit imposed by step
85). In essence, this structure diminishes
the resistance that the resilient strut assembly exerts in the direction opposite
to reclination, thus providing for the user a stable position at any point of strut
travel. Therefore, rocker strut assembly
80 provides a compressible element
with diminished resilience to reclining chair
10 that is smoothly and comfortably
overcome by a user's weight, and yields a stable reclined position.
Backrest receiver and stopper fork member
90 is, in the preferred
embodiment a unitary piece, and includes two parallel and spaced apart plates
97
and
97′ with through openings
99 and
99′, respectively,
as seen in FIGS. 6 and 7. Plates
97 and
97′ are rigidly and
perpendicularly joined to spacer plate
96 that includes through opening
91 through which head end
87 is secured to plate
96, as best
seen in FIG. 6. Bushing members
100 and
100′ are mounted inside
through openings
99 and
99′, respectively. As seen in FIG.
5A, lower portion
24 of backrest assembly
20 is mounted to backrest
receiver and stopper fork member
90 with passing pin
120 as best
seen in FIGS. 3,
3A and
5A. Passing pin
120 is kept in place
with locking rings
121 and
121′, shown in FIGS. 6 and 6A.
Spaced apart plates
97 and
97′ are secured to lower portion
24 by passing pin
120, which passes through rocker strut securing
opening
27 as well as openings
99 and
99′ (see FIGS.
5A,
6,
7). Lower end
89 of shaft
86 is mounted to plate
140, which is rigidly mounted to the upper edge of arms
63 and
63′.
Distal end
89 of stepped shaft member
86 passes through central through
opening
141 of plate
140, as best seen in FIGS. 5 and 5A.
One of the features of the present invention is that in conventional theater
seat, the backrest moves back and the seat assembly stays at substantially the
same position. The present invention achieves a rocker effect whereby the angular
relationship of the seat and backrest assemblies is preserved when a user leans
back. In operation, lower portion
24 coacts with rocker pin
36 and
any backward movement of backrest assembly
20 is transmitted to seat assembly
30 angularly lifting it in proportion to the movement of assembly
20.
In turn, by removing rocker pin
36, the present invention may also behave
as a cinema "lounger" chair, wherein only the backrest reclines and the seat assembly
stays at substantially the same position.
The foregoing description conveys the best understanding of the objectives and
advantages of the present invention. Different embodiments may be made of the inventive
concept of this invention. It is to be understood that all matter disclosed herein
is to be interpreted merely as illustrative, and not in a limiting sense.
*
