U.S. patent application number 11/532634 was filed with the patent office on 2008-03-20 for tri-pole transmission tower.
Invention is credited to David Nicholson.
Application Number | 20080066405 11/532634 |
Document ID | / |
Family ID | 39187109 |
Filed Date | 2008-03-20 |
United States Patent
Application |
20080066405 |
Kind Code |
A1 |
Nicholson; David |
March 20, 2008 |
TRI-POLE TRANSMISSION TOWER
Abstract
A tri-pole transmission tower includes a tower having multiple
truss tower sections. The multiple tower sections have a central
vertical axis as well as a cross section having circular,
triangular, polygonal, or any other similar shape. The multiple
tower sections are of differing perimeters. Stacking the smaller
circumference or smaller perimeter sections on top of larger
circumference or larger perimeter sections results in the tower
"stepping" as it is constructed from the foundation to its peak.
Thus, the perimeter of the nearest to the ground section of the
tower is larger than the section sitting directly above it, and
that section has a larger perimeter than the section of the tower
sitting directly above it, and so on until the peak of the tower is
reached.
Inventors: |
Nicholson; David; (Newburgh,
IN) |
Correspondence
Address: |
WOODARD, EMHARDT, MORIARTY, MCNETT & HENRY LLP
111 MONUMENT CIRCLE, SUITE 3700
INDIANAPOLIS
IN
46204-5137
US
|
Family ID: |
39187109 |
Appl. No.: |
11/532634 |
Filed: |
September 18, 2006 |
Current U.S.
Class: |
52/292 |
Current CPC
Class: |
E04H 12/10 20130101 |
Class at
Publication: |
52/292 |
International
Class: |
E02D 27/00 20060101
E02D027/00 |
Claims
1. A structure for supporting utility and telecommunication
equipment, comprising: a foundation; a tower on the foundation, the
tower having a base tower section and a plurality of sections such
that each section of the plurality is stacked on top of a lower
section; wherein the base section has a larger perimeter than a
section above the base section such that a step is formed between
the larger perimeter base and a smaller perimeter section above the
base section; and wherein a section of the tower comprises a
truss.
2. The structure of claim 1 and further comprising a wrap
surrounding the tower.
3. The structure of claim 2 and wherein the wrap is composed of
plastic.
4. The structure of claim 3 and wherein the plastic
polycarbonate.
5. The structure of claim 2 and wherein the wrap has a step
configuration.
6. The structure of claim 1 and wherein each section comprises a
proximal end and a distal end, each end having a polygonal
shape.
7. The structure of claim 1 and wherein each section comprises a
proximal end and a distal end, each end having a circular
shape.
8. The structure of claim 1 and wherein each section comprises a
proximal end and a distal end, each end having a triangular
shape.
9. The structure of claim 1 and wherein each section comprises
legs.
10. The structure of claim 9 and wherein the legs are 30 feet in
length.
11. The structure of claim 1 and wherein the tower has a height of
at least 100 feet above the foundation.
12. The structure of claim 1 and further comprising a radio antenna
attached to the tower.
13. A method of installing a transmission tower, comprising placing
a base section onto a foundation, the base section having a first
perimeter; stacking a plurality of sections on the base section, at
least one of the plurality of sections having a perimeter that is
smaller than the first perimeter such that the stacking of the
plurality of sections forms a step; and wherein one of the sections
of the base section or the plurality of sections comprises a
truss.
14. The method of claim 12 and further comprising attaching a radio
antenna to the tower.
15. The method of claim 12 and wherein the stacking results in a
tower that has a height of at least 100 feet above the foundation.
Description
BACKGROUND
[0001] 1. Field
[0002] The present disclosure is generally directed to structures
for supporting utility and telecommunication equipment. More
particularly, but not exclusively, the present disclosure describes
transmission towers for supporting telecommunication equipment,
including antenna and wires.
[0003] 2. Description of Related Art
[0004] A typical monopole tower used in the telecommunications
industry allows for transmission lines to run up the inside of the
structure. This arrangement is such that the first carrier on the
monopole remains protected while second and subsequent
installations of transmission lines may be damaged upon
installation. Further, these lines are generally inaccessible to
service once installed and must be changed out completely if a
problem arises. The same antenna mounts that are used on self
supporting towers and guyed towers are not usable with monopoles or
hexagonal poles. Another deficiency of the monopole is that
installers of the monopole typically have hesitation with respect
to climbing the monopole.
[0005] Therefore, this field of art is in need of an invention to
address some of the deficiencies present. The present invention
presents many advantages and is preferable over prior towers in
this field for a variety of reasons. The present invention allows
for less problematic and easier installation and hanging of
transmission lines. Further, typical service performed by
technicians is less stressful and straining, especially in light of
technicians having a disdain for climbing monopoles. The upkeep,
maintenance, and installation are thus made less undesirable for
the technician. Protection of the transmission lines also is
served. Transmission lines in the present invention are not
susceptible to damage upon installation of later transmission
lines. Further, these lines are generally accessible to service
once installed and do not necessarily have to be changed out
completely if a problem arises. Lastly, the same antenna mounts
that are used on self supporting towers and guyed towers are usable
with the present invention.
BRIEF SUMMARY
[0006] To address the current needs and improving upon prior
technology, the present invention contemplates a structure for
supporting utility and telecommunication equipment. More
particularly, but not exclusively, the present disclosure describes
transmission towers for supporting telecommunication equipment,
including antenna and wires.
[0007] Certain embodiments of present invention are provided that
combine the traditional fabrication techniques of lattice type
structures with the typical monopole structures to create a tower
that is composed of multiple tower sections. It is desired that
multiple straight truss or lattice tower sections be fabricated.
The multiple tower sections have a central vertical axis as well as
a cross section having circular, triangular, polygonal, or any
other similar shape. The multiple tower sections are of differing
circumferences in the case of circular shaped cross sections, or
are of differing perimeters in the case of polygonal or other
shapes. Stacking the smaller circumference or smaller perimeter
sections on top of larger circumference or larger perimeter
sections results in the tower "stepping" as it is constructed from
the ground to its peak. Thus, the circumference or perimeter of the
nearest to the ground section of the tower is larger than the
section sitting directly above it, and that section has a larger
circumference or perimeter than the section of the tower sitting
directly above it, and so on until the peak of the tower is
reached.
[0008] It is also contemplated that certain embodiments of the
present invention include a foundation to which the tower would be
fixedly attached. The foundation would be composed of concrete or
any other suitable material for the construction of a foundation
needed to support such a transmission tower. Further, the multiple
tower sections, and thus the tower in its entirety, could be
optionally concealed within a shell or a plastic wrap, for example
a polycarbonate or a Lexan.RTM. brand plastic, such that upon
observing the tower, the lattice structure tower sections would be
covered by the shell or wrap. The shell or wrap would serve as a
shroud and, among other things, would protect the lattice structure
sections and any internal components from weather, wind, earth
movements, and other environmental factors. It further conceals
communication equipment, including transmission lines, from
passersby. The shell or wrap is internally secured to and supported
by the lattice structure and has a cylindrical, polygonal, or other
shape. A finished transmission tower is thus characterized by a
lattice structure attached to a foundation and is optionally
covered by a shell or wrap and is created as a finished tower with
the aesthetic appearance of a monopole.
[0009] The present invention is further designed to support the
weight of telecommunication equipment as well as to be sustainable
to environment forces that may exert themselves on the tower, such
as weather, wind, and earth movements.
[0010] The present invention envisions the use of construction
materials such as metal alloys, including steel, for the lattice
structure and preferably a plastic, such as Lexan.RTM. brand
plastic for the shell or wrap, while other construction materials
and plastics are further contemplated.
[0011] Numerous advantages and additional aspects of the present
invention will be apparent from the description of the preferred
embodiments and drawings that follow.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0012] FIG. 1 is an elevation view of a first embodiment of the
tri-pole transmission tower.
[0013] FIG. 2 is an elevation view of a second embodiment of the
tri-pole transmission tower.
[0014] FIG. 3 is a top view of a first section of the tri-pole
transmission tower.
[0015] FIG. 3a is a top view of a second section of the tri-pole
transmission tower.
[0016] FIG. 4 is a top view of the tri-pole transmission tower that
illustrates a first way of stepping.
[0017] FIG. 5 is a top view of the tri-pole transmission tower that
illustrates a second way of stepping.
[0018] FIG. 6 is a top view of the tri-pole transmission tower that
illustrates a third way of stepping.
[0019] FIG. 7 is a top view of the tri-pole transmission tower that
illustrates a hexagonal cross section of the tri-pole transmission
tower.
[0020] FIG. 8 is a top view of the tri-pole transmission tower that
illustrates a circular cross section of the tri-pole transmission
tower.
[0021] FIG. 9 is a top view of the tri-pole transmission tower that
illustrates a triangular cross section of the tri-pole transmission
tower.
[0022] FIG. 10 is a side view of a section of the tri-pole
transmission tower that illustrates a circular truss
arrangement.
[0023] FIG. 11 is a side view of a section of the tri-pole
transmission tower that illustrates a horizontal truss
arrangement.
[0024] FIG. 12 is a side view of a section of the tri-pole
transmission tower that illustrates a zigzag truss arrangement.
[0025] FIG. 13 is a side view of a section of the tri-pole
transmission tower that illustrates a double zigzag truss
arrangement.
[0026] FIG. 14 is an elevation view of the tri-pole transmission
tower illustrating a first embodiment of a wrap for the tower.
[0027] FIG. 15 is an elevation view of the tri-pole transmission
tower illustrating a second embodiment of a wrap for the tower.
DETAILED DESCRIPTION
[0028] For the purpose of promoting an understanding of the
principles of the invention, reference will now be made to the
embodiments illustrated in the drawings and specific language will
be used to describe the same. It will nevertheless be understood
that no limitation of the scope of the invention is thereby
intended. Such alterations and further modifications in the
illustrated device and such further applications of the principles
of the invention as illustrated therein as would normally occur to
one skilled in the art to which the invention relates are
contemplated as within the scope of the invention
[0029] The present invention generally concerns a structure for
supporting utility and telecommunication equipment and specifically
contemplates transmission towers for supporting telecommunication
equipment, including antenna and wires.
[0030] Certain embodiments of present invention are provided that
combine the traditional fabrication techniques of lattice type
structures with the typical monopole structures to create a tower
that is composed of multiple tower sections. It is desired that
multiple truss or lattice tower sections be fabricated. The
multiple tower sections have a central vertical axis as well as a
cross section having circular, triangular, polygonal, or any other
similar shape. The multiple tower sections are of differing
circumferences in the case of circular shaped cross sections, or
are of differing perimeters in the case of polygonal or other
shapes. Stacking the smaller circumference or smaller perimeter
sections on top of larger circumference or larger perimeter
sections results in the tower "stepping" as it is constructed from
the ground to its peak. Thus, in one embodiment, the circumference
or perimeter of the nearest to the ground section of the tower is
larger than the section sitting directly above it, and that section
has a larger circumference or perimeter than the section of the
tower sitting directly above it, and so on until the peak of the
tower is reached. However, it should be understood that
consecutively stacked sections could also be of the same perimeter,
and thus no stepping would occur between such stacked sections.
[0031] It is also contemplated that certain embodiments of the
present invention include a foundation to which the tower would be
fixedly attached. The foundation would be composed of concrete or
any other suitable material for the construction of a foundation
needed to support such a transmission tower. Further, the multiple
tower sections, and thus the tower in its entirety, could be
optionally concealed within a shell or wrap made of a plastic, for
example polycarbonate or other plastic like Lexan.RTM. brand
plastic, such that upon observing the tower, the lattice structure
tower sections would be covered by the shell or wrap. The shell or
wrap would serve as a shroud and, among other things, would protect
the lattice structure sections and any internal components from
weather, wind, earth movements, and other environmental factors. It
further conceals communication equipment, including transmission
lines, from passersby. The shell or wrap is internally secured to
and supported by the lattice structure and has a cylindrical,
polygonal, or other shape. A finished transmission tower is thus
characterized by a lattice structure attached to a foundation and
is optionally covered by a shell or wrap and is created as a
finished tower with the aesthetic appearance of a monopole.
[0032] The present invention is further designed to support the
weight of telecommunication equipment as well as to be sustainable
to environment forces that may exert themselves on the tower, such
as weather, wind, and earth movements.
[0033] The present invention envisions the use of construction
materials such as metal alloys, including steel, for the lattice
structure and preferably a plastic, such as Lexan.RTM. plastic for
the shell or wrap, while other construction materials and plastics
are further contemplated.
[0034] A method of constructing and installing the tri-pole
transmission tower is also contemplated. A tower is contemplated to
be of any one of many heights and includes towers with a height of
100 feet and higher. Such a method would result in a constructed
tower that is usable for a variety of telecommunication
equipment.
[0035] Referring now to the Figures, exemplary embodiments are
shown and will be described herein. FIG. 1 illustrates an elevation
view of one embodiment of the tri-pole transmission tower. A tower
10 is constructed according to one embodiment of the present
invention. Tower 10 sits on foundation 11, which is composed of
concrete or another material suitable for the stability needed as a
foundation. Tower 10 may be attached to the foundation in any
number of ways, including by bolts, by adhesion, or by any other
means suitable for supporting a tower.
[0036] The tower sections are shown in FIG. 1 as base section 12,
section 13, section, 14, section 15, and section 16. These sections
make up the structure of the transmission tower. Each of the tower
sections 12 through 16 has a central vertical axis that is linear
with each of the other tower sections such that the tower sections
have central positions relative to one another. In other words, the
center point of each cross section of each tower section is linear
with the center point of each other tower section. However, it is
envisioned that each center point of each tower section does not
need to be linear and may be nonlinear. A linear arrangement
results in the most symmetrical arrangement and is easiest to
install. Further, each tower section has a distal end and a
proximal end. Each of these ends has its own shape that represents
the cross sectional shape of each tower section.
[0037] The cross sectional shape of each lattice tower section has
a multitude of potential shapes. Such potential shapes include
circular, triangular, polygonal, or any other similar shape. The
shapes of each lattice tower section are preferably the same
throughout, such that if section 12 has a circular cross section,
sections 13 through 16 will have a circular cross section as well.
FIGS. 7, 8, and 9 illustrate a sample of the potential cross
sections without limitation. FIG. 7 shows a hexagonal cross section
70. In this arrangement, base section 71 has a larger perimeter
than tower section 72, which has a larger perimeter than tower
section 73, which is the tower section that is the farthest
distance from the foundation. It should be understood however that
more tower sections may be included beyond those that are shown
such that consecutively stacked sections of the same perimeter
would not result in a step between such stacked sections. Further,
more tower sections may be included that have a smaller perimeter
than those that are shown. FIG. 8 illustrates a similar
configuration to FIG. 7 except that the cross section 80 of the
tower sections is circular. Thus, base section 81 has a larger
perimeter than that of tower section 82, which has a larger
perimeter than that of tower section 83. Again, it should be
understood as above that more tower sections may be included--those
resulting in consecutive stacked tower sections having the same
diameter as well as those having a smaller perimeter than those
shown. FIG. 9 illustrates a similar configuration to FIGS. 7 and 8
except that the cross section 90 of the tower sections is
triangular. Thus, base section 91 has a larger perimeter than that
of tower section 92, which has a larger perimeter than that of
tower section 93. Again, it should be understood as above that more
tower sections may be included--those resulting in consecutive
stacked tower sections having the same diameter as well as those
having a smaller perimeter than those shown.
[0038] Each tower section is constructed and installed relative to
the other tower sections. In FIG. 1, tower section 12 is situated
on the foundation. Section 12, assuming it as having a rectangular
cross section and thus having an overall prism shape, has a length
31 as in FIG. 3 and a width 32 as in FIG. 3 and thus a resulting
perimeter of two times the length 31 plus two times the width 32.
However, as FIG. 3a illustrates, if a section 35 is constructed
that is not polygonal or circular and thus does not have all sides
connecting, an effective perimeter is contemplated. An effective
perimeter as shown in FIG. 3a is the sum of the lengths 35a, 35b,
and 35c. The perimeter of tower section 12 is thus the starting
point for constructing and installing the tower sections 13 through
16. Tower section 12 will be constructed such that its resulting
perimeter will be less than that of tower section 13. Thus, as
shown in FIG. 1, the central axis of tower section 13 is linear
with that of tower section 12 and results in the two tower sections
being a "step" since the perimeter of tower section 12 is larger
than that of tower section 13. Further, tower section 14 has a
smaller perimeter than that of tower section 13 such that tower
sections 13 and 14 create a "step" as well. Tower section 15 has a
smaller perimeter than that of tower section 14 such that tower
sections 14 and 15 create a "step." Finally, as shown in FIG. 1,
tower section 16 has a smaller perimeter than that of tower section
15 such that tower sections 15 and 16 create a "step." FIG. 1,
while showing only five tower sections, is not limiting the present
invention in the number of tower sections. It should be understood
that as few has two tower sections could be constructed and
installed or as many tower sections as is reasonably needed for
such a transmission tower could be constructed and installed. It
should further be understood that it is contemplated that
additional tower sections may be included within the arrangement
illustrated in FIG. 1 such that consecutive tower sections have the
same perimeter and thus do not create a step. Therefore, it is
envisioned that another tower section of, for example, the same
perimeter as section 12 be installed directly above section 12 and
would result in consecutive sections having the same perimeter. A
consecutive perimeter arrangement may exist at any point in the
tower's arrangement of tower sections.
[0039] Further in FIG. 1, trusses 17 of tower section 12 are shown.
Additional trusses of tower sections 13 through 16 are also shown
and are of the same general arrangement as those of tower section
12. The trusses of the present invention are generally one of
several configurations. FIGS. 10 through 13 illustrate the
potential configurations of the trusses. FIG. 10 shows a tower
section 100 with a circular arrangement of trusses 101. FIG. 11
illustrates a tower section 110 with horizontal trusses 111 that
connect leg 112 with leg 113. FIG. 12 shows a tower section 120
with one type of zigzag truss 121 arrangement that connects leg 122
with leg 123. FIG. 13 illustrates a tower section 130 with a second
type of zigzag truss that includes two separate truss zigzags 131
and 132 that connect legs 133 and 134. Among the configurations
that the trusses 17 of FIG. 1 and the trusses in FIG. 2 take
include those that are illustrated in FIGS. 10 through 13. However,
it should be understood that the arrangement could be other such
truss designs without limitation.
[0040] Leg 18 of FIG. 1 provides the outermost support of the
transmission tower for each of the tower sections. Legs of the
tower sections preferably are thirty (30) feet in length. However,
it is understood that leg lengths of virtually any length are
contemplated and such lengths would depend primarily on the
stability needed for the particular transmission equipment that
will be used on the tower as well as the environment in which the
tower will be placed. Legs are further present in each of the tower
sections above the base section in FIG. 1 as well as each of the
tower sections in FIG. 2. The legs of the present invention are
further illustrated in FIGS. 10 through 13, which show a single
tower section. The legs of each tower section are connected by the
trusses of each tower section as discussed above.
[0041] With further regard to the embodiment shown in FIG. 2, a
transmission tower 20 is constructed from a foundation 21 and
lattice tower sections 22, 23, 24, and 25. The tower sections in
this embodiment are similarly constructed and installed as in FIG.
1 such that the step-like characteristic is preserved. However,
this embodiment further includes a spacer area. The spacer area 26
of tower section 22 is constructed as a middle sector of tower
section 22. It optionally is present to divide the tower section 22
exactly in half such that one-half of the tower section 22 is below
the spacer area and one-half of the tower section 22 is above the
spacer area, but it is further envisioned that the spacer area is
not limited as such. The spacer area 26 could be situated such that
more than half of the tower section 22 would be below the spacer
area 26, or it could be situated such that less than half of the
tower section 22 would be below spacer area 26. As FIG. 2 shows,
each of the tower sections 22 through 25 has spacer areas 26
through 29, respectively. As with the embodiment in FIG. 1, it is
contemplated that as few as two tower sections or as many tower
sections as is reasonably needed would be constructed and installed
as is shown in the embodiment of FIG. 2, and thus it is not meant
to be limited to four tower sections. It should further be
understood that it is contemplated that additional tower sections
may be included within the arrangement illustrated in FIG. 2 such
that consecutive tower sections have the same perimeter and thus do
not create a step. Therefore, it is envisioned that another tower
section of, for example, the same perimeter as section 22 be
installed directly above section 22 and would result in consecutive
sections having the same perimeter. A consecutive perimeter
arrangement may exist at any point in the tower's arrangement of
tower sections.
[0042] FIGS. 4, 5, and 6 show top views of different embodiments of
the transmission tower. FIG. 4 shows an arrangement 40 of a typical
embodiment such that each of the tower sections 41 through 44 has a
prism shape. As explained with respect to FIGS. 1 and 2, each tower
section has a smaller perimeter than the tower section below it.
FIG. 4 shows rectangular cross sections of the tower sections such
that with each tower section that is above a lower tower section,
the higher tower section has a smaller length and a smaller width.
A smaller length and a smaller width result in a smaller perimeter
and thus the tower as a whole being configured in a step-like
fashion. Thus, base section 41 has the largest perimeter followed
in decreasing perimeter by tower section 42, 43, and 44. However,
as shown in FIGS. 5 and 6, either one of the width or length could
be the same as lower tower sections while the other of the width or
length is shorter than lower tower sections. This arrangement too
results in the tower as a whole being configured in a step-like
fashion. FIG. 5 shows arrangement 50 having similarly sized widths
of the tower sections 51 through 54. However, the lengths decrease
in size beginning with base section 51 and continuing with tower
sections 52, 53, and 54. A similar arrangement would result if
instead the tower section lengths were similarly sized with
differing tower widths. As FIG. 6 illustrates, the step arrangement
60 may only occur on one side of the tower with sections 61 through
64.
[0043] FIGS. 14 and 15 illustrate an optional shell or a wrap for
the tri-pole transmission tower. Upon observing the tower in FIGS.
1 or 2, the truss or lattice structure tower sections would be
covered by the shell or wrap. In a first embodiment shown in FIG.
14, the wrap 140 is constructed such that it follows the stepping
configuration of the tri-pole tower. In a second embodiment shown
in FIG. 15, the wrap 150 is shown to be a tapered wrap. It does not
step as the tower does but instead begins from the foundation and
tapers as it reaches the height of the tower. The shell or wrap
serves as a shroud and, among other things, protects the lattice
structure sections and any internal components from weather, wind,
earth movements, and other environmental factors. The shell or wrap
also encloses communication equipment, including transmission
lines, from passersby and generally protects as above. The shell or
wrap is internally secured to and supported by the truss or lattice
structure and has a cylindrical, triangular, polygonal, or other
shape. Such a wrap is preferably made of plastic, and more
particularly polycarbonate, such as Lexan.RTM. brand plastic.
However, other materials may also be used.
[0044] While the invention has been illustrated and described in
detail in the drawings and foregoing description, the same is to be
considered as illustrative and not restrictive in character, it
being understood that only selected embodiments have been shown and
described and that all changes, modifications and equivalents that
come within the spirit of the inventions described heretofore
and/or defined by the following claims are desired to be
protected.
* * * * *