U.S. patent application number 10/163560 was filed with the patent office on 2003-02-13 for method and apparatus for providing a modular shielded enclosure.
Invention is credited to Lyons, Jerold P..
Application Number | 20030029101 10/163560 |
Document ID | / |
Family ID | 23139937 |
Filed Date | 2003-02-13 |
United States Patent
Application |
20030029101 |
Kind Code |
A1 |
Lyons, Jerold P. |
February 13, 2003 |
Method and apparatus for providing a modular shielded enclosure
Abstract
A modular, shielded enclosure engineered to provide structural
security for information technology (IT), data, and telecom
equipment is provided. The enclosure is composed of individual
periphery shields locked together to create an airtight, thermal
resistant, fire resistant, waterproof, hermetically sealed
facility. In addition, a series of penetration management devices
(PMD) and a control panel can be deployed. The enclosures are
infinitely configurable independent structures, and may be
expanded, reduced, or relocated with ease to give end-users the
flexibility needed to manage the ever-changing, highly specialized
IT facility.
Inventors: |
Lyons, Jerold P.; (Sparta,
NJ) |
Correspondence
Address: |
MOSER, PATTERSON & SHERIDAN, LLP
Suite 100
595 Shrewsbury Avenue
Shrewsbury
NJ
07702
US
|
Family ID: |
23139937 |
Appl. No.: |
10/163560 |
Filed: |
June 5, 2002 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60295953 |
Jun 5, 2001 |
|
|
|
Current U.S.
Class: |
52/79.1 ; 52/270;
52/782.1 |
Current CPC
Class: |
E06B 3/7015 20130101;
E04H 2005/005 20130101; E06B 2001/707 20130101; E04B 2002/7498
20130101; E06B 2003/7036 20130101; A62C 3/16 20130101; E06B 5/16
20130101; E06B 1/325 20130101; E06B 3/827 20130101; E04H 1/125
20130101; E04B 1/6183 20130101 |
Class at
Publication: |
52/79.1 ; 52/270;
52/782.1 |
International
Class: |
E04H 001/00; E04H
003/00; E04H 014/00; E04B 005/00; E04C 002/54 |
Claims
What is claimed is:
1. A method for providing a modular enclosure, said method
comprising the steps of: a) providing a plurality of vertical
shields, wherein each of said plurality of vertical shields
comprises a three layer core having a milled fiber layer, a gypsum
board layer and a poly-isocyanurate layer; b) providing a plurality
of cap shields; and c) providing a plurality of base shields,
wherein said plurality of vertical shields, cap shields and base
shields are joined to form the modular enclosure.
2. The method of claim 1, wherein each of said plurality of cap
shields comprises a three layer core having a milled fiber layer, a
gypsum board layer and a poly-isocyanurate layer.
3. The method of claim 1, wherein each of said plurality of base
shields comprises a silicon membrane layer, and a calcium silicate
layer.
4. The method of claim 1, further comprising the step of: a')
providing a plurality of gaskets between said adjoining vertical
shields.
5. The method of claim 1, further comprising the step of: b')
providing a plurality of gaskets between said adjoining cap
shields.
6. The method of claim 1, wherein one of said vertical shields is a
standard vertical shield.
7. The method of claim 1, wherein one of said vertical shields is a
mechanical vertical shield.
8. The method of claim 1, wherein one of said vertical shields is a
carrier vertical shield.
9. The method of claim 1, wherein one of said vertical shields is a
vertical T shield.
10. The method of claim 1, wherein one of said vertical shields is
an inside corner vertical shield.
11. The method of claim 1, wherein one of said vertical shields is
an outside corner vertical shield.
12. The method of claim 1, wherein one of said vertical shields is
a door vertical shield.
13. The method of claim 1, further comprising the step of: (a')
providing a plurality of anchor plates for receiving said plurality
of vertical shields.
14. The method of claim 13, further comprising the step of: (a")
providing a plurality of gaskets below said plurality of anchor
plates.
15. The method of claim 14, further comprising the step of: (a'")
providing a plurality of gaskets above said plurality of anchor
plates.
16. The method of claim 13, further comprising the step of: (a")
providing a plurality of gaskets above said plurality of anchor
plates.
17. The method of claim 1, further comprising the step of: (d)
providing a plurality of coping for covering a plurality of
junctures that are formed when said plurality of vertical shields
are joined with said cap shields.
18. The method of claim 13, wherein each of said plurality of
anchor plates comprises a front angular portion and a back angular
portion.
19. The method of claim 18, wherein said front angular portion
comprises at least one anchor opening and at least two alignment
openings, and wherein said back angular portion comprises at least
one anchor opening and at least two alignment openings.
20. The method of claim 19, further comprising the step of: d)
inserting an alignment tool in said alignment openings to align
said anchor openings of said front and back angular portions.
21. A modular enclosure comprising: a plurality of vertical
shields, wherein each of said plurality of vertical shields
comprises a three layer core having a milled fiber layer, a gypsum
board layer and a poly-isocyanurate layer; a plurality of cap
shields; and a plurality of base shields, wherein said plurality of
vertical shields, cap shields and base shields are joined to form
the modular enclosure.
22. The modular enclosure of claim 21, wherein each of said
plurality of cap shields comprises a three layer core having a
milled fiber layer, a gypsum board layer and a poly-isocyanurate
layer.
23. The modular enclosure of claim 21, wherein each of said
plurality of base shields comprises a silicon membrane layer, and a
calcium silicate layer.
24. The modular enclosure of claim 21, wherein each of said
plurality of base shields comprises a top surface that is supported
by a plurality of steel reinforcement bars, with a
poly-isocyanurate layer deposited below said top surface.
25. The modular enclosure of claim 21, further comprising a
plurality of gaskets disposed between said adjoining vertical
shields.
26. The modular enclosure of claim 21, further comprising a
plurality of gaskets disposed between said adjoining cap
shields.
27. The modular enclosure of claim 21, wherein one of said vertical
shields is a standard vertical shield.
28. The modular enclosure of claim 21, wherein one of said vertical
shields is a mechanical vertical shield.
29. The modular enclosure of claim 21, wherein one of said vertical
shields is a carrier vertical shield.
30. The modular enclosure of claim 21, wherein one of said vertical
shields is a vertical T shield.
31. The modular enclosure of claim 21, wherein one of said vertical
shields is an inside corner vertical shield.
32. The modular enclosure of claim 21, wherein one of said vertical
shields is an outside corner vertical shield.
33. The modular enclosure of claim 21, wherein one of said vertical
shields is a door vertical shield.
34. The modular enclosure of claim 21, further comprising a
plurality of anchor plates for receiving said plurality of vertical
shields.
35. The modular enclosure of claim 34, further comprising a
plurality of gaskets disposed below said plurality of anchor
plates.
36. The modular enclosure of claim 35, further comprising a
plurality of gaskets disposed above said plurality of anchor
plates.
37. The modular enclosure of claim 34, further comprising a
plurality of gaskets disposed above said plurality of anchor
plates.
38. The modular enclosure of claim 21, further comprising a
plurality of coping for covering a plurality of junctures that are
formed when said plurality of vertical shields are joined with said
cap shields.
39. The modular enclosure of claim 34, wherein each of said
plurality of anchor plates comprises a front angular portion and a
back angular portion.
40. The modular enclosure of claim 39, wherein said front angular
portion comprises at least one anchor opening and at least two
alignment openings, and wherein said back angular portion comprises
at least one anchor opening and at least two alignment openings,
wherein said alignment openings are for receiving an alignment
tool.
41. The modular enclosure of claim 21, further comprising at least
a post for coupling with said vertical shields to form a
corner.
42. The modular enclosure of claim 29, wherein said carrier
vertical shield comprises a carrier portal assembly.
43. The modular enclosure of claim 42, wherein said carrier portal
assembly comprises a carrier plate, a portal filler gasket and a
carrier pan.
44. A modular enclosure comprising: a plurality of vertical shield
means, wherein each of said plurality of vertical shields comprises
a three layer core having a milled fiber layer, a gypsum board
layer and a poly-isocyanurate layer; a plurality of cap shield
means; and a plurality of base shield means, wherein said plurality
of vertical shields, cap shields and base shields are joined to
form the modular enclosure.
Description
[0001] This application claims the benefit of United States
Provisional Application No. 60/295,953 filed Jun. 5, 2001, which is
hereby incorporated by reference in its entirety.
[0002] The present invention relates to an apparatus and
concomitant method for providing a protective enclosure. More
specifically, the apparatus is a modular, shielded enclosure that
is engineered to provide structural security for important assets
such as information technology (IT), data, telecom equipment, and
the like.
BACKGROUND OF THE INVENTION
[0003] Information technology (IT), data, and telecom equipment are
important and expensive assets in many businesses, and, as such,
appropriate measures are generally taken to insure that the
lifetime and functionality of such equipment are not compromised.
Due to the sensitive nature of the equipment, many businesses
construct facilities within their offices and buildings to protect
the equipment from threats that might cause degradation, damage,
failure, or consequential loss (i.e., by fire, heat, water, dust,
radio frequencies, vandalism, etc.). These facilities are usually
permanent sites constructed within the building as part of the
occupant's initial architecture. As such, they are fixed in both
location and size.
[0004] However, if such a protective facility is contemplated after
the office building has been constructed, substantial modifications
to the structure of the building are often required at considerable
cost to meet the stringent protective requirements. Additionally,
once such protective facility is integrated into the office, it is
very costly to then reconfigure or to enlarge such protective
facility.
[0005] Thus, a need exists for a flexible and modular approach that
provides a protective enclosure within a facility for protecting
sensitive equipment and data.
SUMMARY OF THE INVENTION
[0006] In one embodiment of the present invention, a method and
apparatus for providing a modular, shielded enclosure is provided.
The enclosure is engineered to provide structural and environmental
security for IT, data, and physical equipment, e.g., communication
and computer equipment, and is intended to protect any and all
contents regardless of function or type from human or environmental
threats that may otherwise cause degradation, damage, failure, or
consequential loss.
[0007] The present invention is a modular, shielded enclosure that
provides protection to sensitive equipment and data, but is
advantageously engineered to provide flexibility in its deployment
as it can contain and surround unlimited areas of space. Namely,
the deployment of the present modular, shielded enclosure is not
required to be designed into the initial construction of the
building. It is designed to be easily deployed in existing
buildings.
[0008] The design and assembly of the enclosure allow not only for
easy construction, but also for relocation and even expansion or
reduction, should the user's needs change over time. The enclosures
are infinitely configurable independent systems, and other than the
structural foundation on which they are assembled, they do not rely
on building architecture for structural support.
[0009] Individual periphery shields of varying heights, a series of
penetration management devices (PMD), and a control panel
constitute the composition of the secure enclosure. The PMD's
consist of a door system for human and equipment transfer,
mechanical dampers for fresh and mechanical air exchange, and
carrier portals to manage wire, cable, and plumbing penetrations.
These enclosures are infinitely configurable, and once installed,
the entire assembly may be expanded, reduced, or even relocated.
Other than the structural foundation on which the enclosure is
assembled, the enclosure does not rely on building architecture for
structural support. This modularity and independence provides
end-users with the flexibility needed to manage the ever-changing,
highly specialized, critical facility.
[0010] The enclosure can be deployed to protect contents against
such threats as fire, water, heat, dust, humidity, smoke, acrid
gases, radio frequencies (RF), electromagnetic
interference/electromagnetic pulses (EMI/EMP), theft, vandalism,
unauthorized access, construction hazards, and explosions.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] So that the manner in which the above recited features,
advantages and objects of the present invention are attained and
can be understood in detail, a more particular description of the
invention, briefly summarized above, may be had by reference to the
embodiments thereof which are illustrated in the appended
drawings.
[0012] It is to be noted, however, that the appended drawings
illustrate only typical embodiments of this invention and are
therefore not to be considered limiting of its scope, for the
invention may admit to other equally effective embodiments.
[0013] FIG. 1 illustrates a three-dimensional view of an
illustrative modular enclosure of the present invention as deployed
in a larger facility;
[0014] FIG. 2 illustrates a three-dimensional view of a typical
embodiment of the enclosure;
[0015] FIG. 3 illustrates a top view of a typical embodiment of the
modular enclosure of the present invention;
[0016] FIG. 4 illustrates an isometric drawing of a basic flat
vertical shield or a standard shield of the present invention;
[0017] FIG. 5 illustrates an isometric drawing of a carrier
vertical shield of the present invention;
[0018] FIG. 6 illustrates an isometric drawing of a first
mechanical vertical shield of the present invention;
[0019] FIG. 7 illustrates an isometric drawing of a second
mechanical vertical shield of the present invention;
[0020] FIG. 8 illustrates the front, side and top views of a basic
flat vertical shield or a standard shield of the present
invention;
[0021] FIG. 9 illustrates the front and top views of a carrier
vertical shield of the present invention;
[0022] FIG. 10 illustrates the front and top views of a first
mechanical vertical shield of the present invention;
[0023] FIG. 11 illustrates the front and top views of a second
mechanical vertical shield of the present invention;
[0024] FIG. 12 illustrates a cross-sectional top view of a vertical
shield of the present invention;
[0025] FIG. 13 illustrates a cross-sectional top view of a gasket
that is disposed between two vertical shields of the present
invention;
[0026] FIG. 14 illustrate a cross-sectional top view of a first
vertical T shield of the present invention;
[0027] FIG. 15 illustrate a cross-sectional top view of a second
vertical T shield of the present invention;
[0028] FIG. 16 illustrate a cross-sectional top view of an inside
corner vertical shield of the present invention;
[0029] FIG. 17 illustrate a cross-sectional top view of an outside
corner vertical shield of the present invention;
[0030] FIG. 18 illustrates an anchor plate of the present
invention;
[0031] FIG. 19 illustrates a cross-sectional side view of the
placement of a base shield relative to a vertical shield;
[0032] FIG. 20 illustrates a coping of the present invention;
[0033] FIG. 21 illustrates a cross-sectional side view of the
placement of a cap shield relative to a vertical shield;
[0034] FIG. 22 illustrates an isometric view of a damper housing of
the present invention;
[0035] FIG. 23 illustrates a front view and a side view of the
damper housing of the present invention;
[0036] FIG. 24 illustrates a front view of a damper shield of the
present invention;
[0037] FIG. 25 illustrates a cross-sectional top and side view of
the damper shield of the present invention;
[0038] FIG. 26 illustrates a back view of the damper shield of the
present invention;
[0039] FIG. 27 illustrates an isometric drawing of a door set of
vertical door shields of the present invention;
[0040] FIG. 28 illustrates a front view and a top view for each of
the vertical door shields of the present invention;
[0041] FIG. 29 illustrates an isometric cross section of the door
of the present invention;
[0042] FIG. 30 illustrates a top end channel alone the periphery of
the door of the present invention;
[0043] FIG. 31 illustrates a bottom end channel alone the periphery
of the door of the present invention;
[0044] FIG. 32 illustrates a side end channel alone the periphery
of the door of the present invention;
[0045] FIG. 33 illustrates a cross-sectional view from the hinge
side of the door engaging the door frame;
[0046] FIG. 34 illustrates a cross-sectional view from the lockset
side of the door engaging the door frame;
[0047] FIG. 35 illustrates a cross-sectional view from the bottom
side of the door engaging the door frame;
[0048] FIG. 36 illustrates a cross-sectional view of interlocking
strips on the lockset side of the door;
[0049] FIG. 37 illustrates a cross-sectional view of interlocking
strips on the door head side of the door;
[0050] FIG. 38 illustrates a cross-sectional view of the bottom of
the door frame;
[0051] FIG. 39 illustrates a cross-sectional view of the top and
sides of the door frame;
[0052] FIG. 40 illustrates the gasket of the present invention;
[0053] FIG. 41 illustrates a table for the formulation of the
gasket;
[0054] FIG. 42 illustrates an alternate shield structure;
[0055] FIG. 43 illustrates an alternate T-assembly of the present
invention;
[0056] FIG. 44 illustrates an alternate structure for a cap shield
of the present invention;
[0057] FIG. 45 illustrates an alternate base shield of the present
invention;
[0058] FIG. 46 illustrates an alternate anchor plate of the present
invention;
[0059] FIG. 47 illustrates an alignment of the front angled portion
and a back angled portion of an anchor assembly of the present
invention;
[0060] FIG. 48 illustrates an anchor plate alignment tool of the
present invention;
[0061] FIG. 49 illustrates an interior front view of the back
angled portion of the anchor plate assembly of the present
invention;
[0062] FIG. 50 illustrates the alternate anchor plate assembly as
deployed next to the alternate base shield of the present
invention;
[0063] FIG. 51 illustrates an isometric view of a plurality of
vertical shields that are deployed in conjunction with a post to
form a corner of the present invention;
[0064] FIG. 52 illustrates a latching system of the present
invention; and
[0065] FIG. 53 illustrates the carrier portal assembly of the
present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0066] The present invention relates to a modular, shielded
enclosure that is advantageously engineered to provide structural
and environmental security for IT, data, and equipment, thereby
protecting contents against human and/or environmental threats that
may cause degradation, damage, failure, or loss. FIG. 1 shows an
illustrative interior hallway of a facility 100 in which a modular
protective enclosure 110 is deployed within the facility 100. The
modular protective enclosure 110 is constructed from a plurality of
modular shields that are described in detail below. One advantage
of the present invention is the modularity, configurability and
portability of the overall protective system. Namely, the modular
protective enclosure 110 can be deployed within the facility 100
without special accommodation. The modular protective enclosure 110
can be deployed in existing facilities that were previously
constructed in a manner that did not address the need for a
protective enclosure within the facility.
[0067] Although the present invention is described as a modular
protective enclosure that is deployed within a facility, those
skilled in the art will realized that the present invention can be
adapted to encompass the interior of an entire facility. Namely,
the various shields that are disclosed below can be deployed
throughout the entire facility to form a protective facility if
such requirement is needed or desired.
[0068] FIG. 2 illustrates a typical configuration of the enclosure
110 disclosed in the present invention. This figure is simply used
to illustrate the different types of shields that can be deployed
to form a modular protective enclosure 110. Since the shape, size
and configuration of a protective enclosure will vary depending on
the particular application, various combinations of these shields
can be deployed. In other words, some of the shields may not be
deployed at all if a particular application does not call for such
a feature, e.g., a T shield for partitioning a room as disclosed
below.
[0069] FIG. 2 illustrates a modular protective enclosure 110 that
is composed of three basic types of shields: a cap shield 210, a
vertical shield 220 and a base shield 230. In operation, a
plurality of cap shields 210 are mated together to form the ceiling
of the modular protective enclosure 110, while a plurality of base
shields 230 are mated together to form the floor of the modular
protective enclosure 110. Finally, a plurality of vertical shields
220 are mated to form the walls (exterior and interior) of the
modular protective enclosure 110. In fact, the vertical shield 220
can be deployed in a number of different configurations, e.g., a
basic flat vertical shield, an inside corner vertical shield to
address corner 240, an outside corner vertical shield to address
corner 250, a T shield, a mechanical shield, a damper shield, a
carrier shield, a door frame shield, and a door shield. Each of
these shields is described further below.
[0070] FIG. 3 illustrates a cross sectional top view of a modular
protective enclosure 110. Specifically, FIG. 3 illustrates a
plurality of flat vertical shields 340, a plurality of outside
corner vertical shields 310, an inside corner shield 320, and a
pair of T shields 330. Additional vertical shields (not shown) can
be coupled to the pair of T shields to serve as a partition to
define rooms within the enclosure 110. FIG. 3 illustrates the
modularity and flexibility of the present invention, where
different types of vertical shields can be configured to form the
interior and exterior walls for any desired shape and size as
required for a particular deployment. It should be noted that
specialized vertical shields for providing access to the protective
enclosure 110 is not shown in FIG. 3 for simplicity.
[0071] FIGS. 4-7 illustrate isometric drawings of a plurality of
vertical shields, e.g., a standard flat vertical shield 400, a
carrier vertical shield 500, a first mechanical vertical shield 600
and a second mechanical vertical shield 700. Although these
vertical shields are designed to perform different functions, they
still share many common features, e.g., basis shield construction
and installation that are further described below.
[0072] Standard shield 400 is a basic flat vertical shield with no
openings. This standard shield 400 is designed to serve as the
walls of the modular enclosure 110 and will likely be deployed in
greater number than any other vertical shields that are described
herein. Standard vertical and cap shield 400 has a plurality of
latches 410 (female latches) and 420 (male latches) that are
deployed on at least three sides of the vertical shields.
Specifically, three male latches 420 are deployed on one side of
the standard shield 400, whereas three female latches 410 are
deployed on the other side of the standard shield 400. A single
latch is illustrated on the top side of the vertical shield, where
the latch will engage a complementary latch on a cap shield that
will form a part of the ceiling. Thus, as vertical shields are
aligned vertically next to each other or with a cap shield, these
male-female latches are engaged to lock the shields together to
form a strong and air-tight seal. The number of male-female latches
that are deployed on each side of the shield is a function of the
length and width of the shield. A detailed illustration of the
latching system is shown in FIG. 52.
[0073] FIG. 5 illustrates a vertical carrier shield 500 of the
present invention. The vertical carrier shield 500 is designed to
provide a feed-through access to the modular enclosure 110, e.g.,
allowing cables to be passed through a vertical shield.
Specifically, the vertical carrier shield 500 is similar in
construction to that of the standard vertical shield 400 with the
exception that it has a carrier portal 510.
[0074] In one embodiment, the carrier portal is a circular hole
assembly as shown in FIG. 53 that is designed to operate with a
plurality of cable blocks or portal blocks 5310 that are deployed
around cables that are passed through the carrier portal. In one
embodiment, each cable is disposed or sandwiched within two halves
of a cable block. In turn, these cable blocks are stacked 5320
within the carrier portal. The cable blocks are manufactured using
an insulating material that is designed to expand upon exposure to
heat (e.g., the same material that is used to form the gaskets
between the shields as discussed below). As such, during a fire
condition, the cable blocks will expand and form a tight seal
within the carrier portal of the vertical carrier shield. The
carrier portal assembly 5300 (carrier plate 5302, portal filler
gasket 5303, carrier pan 5304) and the cable blocks 5310 are
illustrated in FIG. 53.
[0075] FIGS. 6 and 7 collectively illustrate a pair of vertical
mechanical shields 600 and 700 of the present invention. The
vertical mechanical carrier shields 600 and 700 are designed to be
deployed side by side. These shields are designed to allow ducting,
e.g., HVAC ducts, to be attached to the modular enclosure 110.
However, due to the high degree of protection that is required by
the modular enclosure in some applications, there are situations
where it may be necessary to close the ducts to the modular
enclosure during a hazardous condition.
[0076] To address this criticality, the first vertical mechanical
shield (or sister shield) contains a duct access aperture 610. In
operation, a duct (not shown) is attached to this duct access
aperture 610. In turn, a damper housing (as shown in FIG. 22 below)
is attached behind the pair of mechanical shields. The mechanical
damper is installed over two shields; a mechanical shield and a
mechanical sister shield.
[0077] The damper housing carries a movable "damper shield" that is
stored behind aperture 710 of the second vertical mechanical shield
700, where the two apertures 610 and 710 are laterally aligned.
During a hazardous condition, an actuating system will cause the
damper shield to slide from behind the second vertical mechanical
shield 700 and onto the first vertical mechanical shield 600,
thereby closing the ducting. Again, the vertical mechanical shields
600 and 700 are similar in construction to that of the standard
vertical shield 400 with the exception of the duct access aperture
610 and the damper shield assembly.
[0078] FIGS. 8-11 illustrate the front and top views of a basic
flat vertical shield, a carrier vertical shield, a first mechanical
vertical shield, and a second mechanical vertical shield,
respectively, of the present invention. A side view is also
provided for the standard vertical shield 400.
[0079] In one embodiment, the vertical shields are approximately
10'2" in height and 2' in width. The first lowest latch is located
approximately 2' from the bottom of the vertical shield with each
subsequent latch being disposed approximately 2'7" from a lower
latch.
[0080] The carrier portal 510 is disposed approximately 7" from the
bottom of the vertical carrier shield. The diameter of the carrier
portal 510 is approximately 1'1" in diameter.
[0081] The height of the duct access aperture 610 is approximately
2'7", whereas the width of the duct access aperture 610 is
approximately 1'8". The aperture 710 is similar in size to that of
duct access aperture 610.
[0082] It should be noted that the dimensions that are disclosed
above for the vertical shields are only illustrative. In fact, the
size, quantity and/or placement of various structures can be
changed as the need arises. For example, it should be noted that
although the above vertical shields are disclosed with three
latches on two sides and one latch on a top side, those skilled in
the art will realize that any number of latches can be deployed and
it is generally a function of the length of a particular side of
the shield. As such, although dimensions of numerous structures are
disclosed throughout this disclosure, those skilled in the art will
realize that the present invention is not so limited. Namely, the
specific dimensions of these shields and their components and/or
subassemblies can be tailored to meet the requirements of a
particular deployment.
[0083] FIG. 12 illustrates a cross-sectional top view of a vertical
shield 1200 of the present invention. It should also be noted that
FIG. 12 also illustrates the general composition of all the shields
of the present invention, unless specifically noted below.
[0084] Each shield has a housing that resembles a box with a lid.
In one embodiment, the thickness of the shield is approximately 4".
More specifically, the shield housing comprises an inner pan 1205
and an outer skin 1210. Both the inner pan and the outer skin are
constructed from steel, e.g., 14 gauge sheet steel. The interior of
each shield has a three-layer core that comprises a milled fiber
layer 1220, a gypsum board layer 1230 and a poly-isocyanurate with
heat refracting layer 1240. In one embodiment, the three-layer core
comprises a 21 lb. density milled fiber layer 1220 having an
approximate thickness of 25/8", a gypsum board layer 1230 having an
approximate thickness of 3/8" and a poly-isocyanurate with heat
refracting layer 1240 having an approximate thickness of 1".
[0085] Additionally, an insulating material 1250 is disposed
between the juncture of the inner pan 1205 and the outer skin 1210.
In one embodiment, the insulating material is a ceramic fiber paper
1250 having an approximate thickness of 1/8" that is compressible,
e.g., being compressed down to {fraction (1/16)}", upon being
compressed between the inner pan 1205 and the outer skin 1210. A
unique function performed by the ceramic fiber paper is its ability
to minimize thermal conduction. As the outer skin of a shield is
being heated, e.g., from a fire, the thermal energy can be
transferred from the outer skin to the inner pan due to the ease of
thermal conduction in metals. Without the ceramic fiber paper 1250,
the interior pan may rapidly heat up and degrade the performance of
the modular enclosure.
[0086] FIG. 12 also illustrates a novel gasket 1260 that is
deployed in conjunction with the various shields of the present
invention. In FIG. 12, a single gasket 1260 is shown being
positioned to one side of the vertical shield 1200. However, it
should be noted that a gasket 1260 is typically deployed between
all adjoining shields. However, depending on the types of shields
being joined, the physical size and shape of gasket 1260 may
differ.
[0087] Specifically, as heat is applied to the exterior of the
modular enclosure 110, it has been observed that the joints between
adjoining shields may potentially be the weaker points of the
overall modular enclosure. The gasket is designed to resist heat
and to expand in the presence of heat, thereby preventing the
breach of the protected environment of the modular enclosure 110 by
potentially noxious gases. A detailed disclosure of the gasket is
provided below.
[0088] FIG. 13 illustrates a cross-sectional top view of a gasket
1360 that is disposed between two vertical shields 1300 of the
present invention. The height and depth of gasket 1360 is simply
tailored to match the dimensions of the adjoining shields. The
width of the gasket is approximately .3" in an uncompressed state.
However, once the gasket is deployed between two shields, the
flexible gasket compressed down to a width of approximately
0.2".
[0089] FIGS. 14 and 15 illustrate vertical T shields 1400 and 1500
of the present inventions. Vertical T shields 1400 and 1500 are
similar with the exception that they are complementary in their
configuration relative to each other, e.g., T shield 1400 can be
perceived as a left (L) T shield, while T shield 1500 can be
perceived as a right (R) T shield.
[0090] Specifically, vertical T shields 1400 and 1500 are similar
to the standard vertical shields 1200 in construction. However,
unlike the standard vertical shield, each vertical T shield
comprises an exterior portion 1410 (or 1510) that has one side
being exposed to the exterior of the modular enclosure 110 and an
interior portion 1420 (or 1520) that is disposed within the modular
enclosure 110 in its entirety. As illustrated in FIG. 3 above, the
pair of T shields 1400 and 1500 are deployed so that interior rooms
can be defined by connecting additional vertical shields to the
interior portions 1420 and 1520 in similar manner as described
above.
[0091] FIGS. 16 and 17 illustrate a cross-sectional top view of an
inside corner vertical shield 1600 and an outside corner vertical
shield 1700, respectively, of the present invention. Inside corner
vertical shield 1600 and the outside corner vertical shield 1700
are similar with the exception that they are opposite in their
configuration relative to each other. For example, inside corner
vertical shield 1600 provides a concave corner 1605 from a
perspective outside of the modular enclosure 110, whereas outside
corner vertical shield 1700 provides a convex corner 1705 from a
perspective outside of the modular enclosure 110.
[0092] Again, the inside corner vertical shield 1600 and the
outside corner vertical shield 1700 are similar to the standard
vertical shields 1200 in construction. However, unlike the standard
vertical shield, each inside or outside corner vertical shield
comprises two portions 1610 and 1620 or 1710 and 1720 that are
connected at a right angle in one embodiment of the present
invention. However, although the present corner vertical shields
are disclosed as having two portions that are joined at right
angles, those skilled in the art will realize that these two
portions can be joined at other angles as required by a particular
deployment.
[0093] FIG. 18 illustrates an anchor plate 1800 of the present
invention. More specifically, FIG. 18 illustrates a top and side
view of a corner anchor plate 1800. In one embodiment, each side of
the corner anchor plate 1800 is approximately 2" long. Anchor
plates are deployed throughout the perimeter of the modular
enclosure to serve as anchoring platform to receive various
vertical shields. In the construction of a modular enclosure 110,
anchor plates are initially mounted to the floor of a facility
before the vertical shields can be deployed. A plurality of anchor
plates are coupled together using tongue 1805 and groove 1810 slots
that are disposed on opposite ends of each anchor plate. Thus, if a
rectangular modular enclosure is desired, four corner anchor plates
1800 are deployed with any number of straight anchor plates (not
shown) to form a perimeter of anchor plates.
[0094] The anchor plate 1800 is constructed from 1/8" steel plate.
Each anchor plate has a trough 1830 that is defined by an exterior
lip 1820, a bottom member 1822 and an interior lip 1824. In one
embodiment, exterior lip 1820, bottom member 1822 and interior lip
1824 are approximately 4", 4" and 3/8" in length, respectively.
[0095] FIG. 19 illustrates a cross-sectional side view of the
placement of a base shield 1920 relative to a vertical shield 1900.
More specifically, FIG. 19 illustrates the joining of the vertical
shield to the anchor plate and the base shield 1920. In one
embodiment, gaskets 1905 are deployed above and below the anchor
plate 1910. The use of gaskets 1905 in this novel configuration
provides superior insulating properties because both junctures:
vertical shield to anchor plate and anchor plate to the floor are
insulated with gaskets 1905. Once the gaskets 1905 and anchor plate
1910 are secured to the floor of the facility, the vertical shield
1900 is mounted to the anchor plate 1910 with the exterior lip 1820
of the anchor plate being exterior to the modular enclosure.
[0096] In turn, the base shield 1920 is installed on the floor of
the building and it abuts the vertical shield 1900. A plurality of
base shields are deployed to form the floor of the modular
enclosure 110. In one embodiment, the base shield 1920 comprises a
silicon membrane exterior 1926 that is filled with calcium silicate
1924 and is topped with a 14 gauge steel plate 1922.
[0097] FIG. 20 illustrates a coping 2000 of the present invention.
More specifically, FIG. 20 illustrates a top and side view of a
corner coping 2000. In one embodiment, each side of the corner
coping 2000 is approximately 2' long. Copings are deployed
throughout the upper perimeter of the modular enclosure to serve as
a covering to cover junctures between the vertical shields and the
cap shields. In the construction of a modular enclosure 110,
copings are mounted to the ceiling of a facility after the vertical
shields are joined with the cap shields. Thus, if a rectangular
modular enclosure is desired, four corner copings 2000 are deployed
with any number of straight copings (not shown) to form a upper
perimeter of copings.
[0098] The coping 2000 is constructed from 18 gauge steel plate.
Each coping has an exterior lip 2010, and a top member 2020. In one
embodiment, exterior lip 2010 is approximately 6" in length,
whereas the top member 2020 is approximately 2" in length.
[0099] FIG. 21 illustrates a cross-sectional side view of the
placement of a cap shield 2120 relative to a vertical shield 2100.
More specifically, FIG. 21 illustrates the joining of the vertical
shield to the coping and the cap shield 2120. In one embodiment,
gasket 2105 is deployed between the vertical shield 2100 and cap
shield 2120. Once the vertical shield 2100 is mounted to the anchor
plate, the gasket 2105 and cap shield 2120 are joined with the
vertical shield 2100 via male 2102 and female 2122 latches.
Finally, coping 2110 is mounted to cover the juncture between the
cap shield 2120 and the vertical shield 2100.
[0100] In turn, a plurality of cap shields are deployed to form the
ceiling of the modular enclosure 110. In one embodiment, the
composition of a cap shield 2120 is identical to that of a standard
vertical shield.
[0101] FIG. 22 illustrates an isometric view of a damper housing
2200 of the present invention. The damper housing 2200 is mounted
behind the two mechanical shields 600 and 700 of FIGS. 6 and 7. The
damper housing 2200 carries a damper shield (as shown in FIGS.
24-26) that is designed to slide over and close the duct access
aperture 610 during a hazardous condition. More specifically, the
damper housing 2200 has an access aperture 2210 that is aligned
with the access aperture 610 of vertical mechanical shield 600.
[0102] In one embodiment, the damper housing 2200 is approximately
46" in width, 39" in height, and 8" in depth. The damper housing is
constructed from 11 gauge steel.
[0103] FIG. 23 illustrates a front view and a side view of the
damper housing 2200 of the present invention. The damper housing
2200 contains an upper guide 2320 and a lower guide 2310 that
assist the damper shield to slide laterally to an "open" or
"closed" position. Both guides contain a lip 2322 and 2312,
respective, to keep the damper shield properly aligned as it
traverses between the "open" and "closed" positions.
[0104] FIG. 24 illustrates a front view of a damper shield 2400 of
the present invention. In operation, damper shield 2400 is stored
within the damper housing 2200. If a hazardous condition is
detected, the damper shield 2400 is deployed such that it slides
across and seals off the access aperture 610 of the vertical
mechanical sister shield 600 of FIG. 6.
[0105] In one embodiment, the damper shield 2400 is approximately
2'8" in height, 1'10" in width and 4" in depth. The damper shield
2400 further comprises a pair of rollers or ball transfers 2410,
e.g., from McMaster-Carr with part #(2415T36).
[0106] FIG. 25 illustrates a cross-sectional top and side views of
the damper shield 2400 of the present invention. The damper shield
construction is similar to that of the standard vertical shield
1200. Namely, the damper shield 2400 shares the same core as that
of the standard vertical shield 1200. However, since the damper
shield 2400 is a movable shield, there are no male and female
latches deployed on the damper shield 2400. Additionally, the
damper shield 2400 employs an additional layer of ceramic fiber
paper 2510 on the interior periphery of the damper shield 2400.
This additional layer of ceramic fiber paper 2510 reduces thermal
conduction and also assists in providing an air tight seal when the
damper shield 2400 is deployed to the closed position.
[0107] FIG. 26 illustrates a back view and a side view of the
damper shield 2400 with additional subassemblies. Specifically,
FIG. 26 shows a telescopic cylinder 2610, e.g., from Bimba with a
part number of SK0920-DP, that is coupled to a solenoid (not shown)
and to the back of the damper shield 2400. When the solenoid is
activated in response to a control signal, the telescopic cylinder
2610 extends and causes the damper shield 2400 to slide along the
guides 2320 and 2310. When the damper shield 2400 comes to a stop
at the closed position, a pair of cylinders 2620 are activated to
cause pins to bias against the back of the damper shield, thereby
ensuring an air-tight seal.
[0108] FIG. 27 illustrates an isometric drawing of a door set 2700
of vertical door shields 2710, 2720, and 2730 of the present
invention. Specifically, the door set comprises a pair of
complementary or sister vertical door shields 2710 and 2730 and a
door shield 2720. As shown in FIG. 27, the door shield 2720 is
disposed between the two sister vertical door shields 2710 and
2730. Each of the three vertical door shields is similar in
construction to that of the standard vertical shield 1200. Namely,
each door shield shares the same core as that of the standard
vertical shield 1200. However, as shown in FIG. 27, each of the
door shield employs a greater number of latch assemblies or "cam
lock" assemblies that the standard shields. In one embodiment, each
of the sister door shields employs three latch assemblies (male or
female) on one side and five latch assemblies (male or female) of
the opposite side, whereas the door shield 2720 employs five latch
assemblies (male or female) on both sides. The increase in the
number of latch assemblies is in response to the need to reinforce
the door assembly due to the stress generated by repetitive opening
and closing of the door.
[0109] FIG. 28 illustrates a front view and a top view for each of
the vertical door shields 2710, 2720, and 2730 of the present
invention. Additionally, a side view is provided for vertical
sister door shield 2730. In one embodiment, each of vertical sister
door shields 2710 and 2730 is approximately 10'2" in height, 2' in
width and 4" in depth. The door shield 2720 is approximately 10'2"
in height, 3'12" in width and 4" in depth.
[0110] The door shield 2720 comprises two distinct portions: a door
frame 2722 and a door 2724. Structures surrounding the door 2724
are specifically designed to ensure an air-tight seal and to
provide superior performance under hazardous conditions such as a
fire. These structures are disclosed below.
[0111] FIG. 29 illustrates an isometric cross section of the door
2724 of the present invention. Specifically, FIG. 29 again
illustrates a cut-away view of the door having a core that is
similar to that of the standard vertical shield. In one embodiment,
the door 2724 has a different thickness or depth than a standard
door shield. As such, the thickness of the core, i.e., the
thickness of its components are also different as well, e.g., using
15/8" of 22 lb. density cryogenics milled fiber, 3/8" of gypsum
board and 1" of poly-isoyanurate with foil back.
[0112] Additionally, unlike the vertical standard shield, the door
2724 comprises additional structures that are deployed to
strengthen the structural integrity of the door. For example, the
door also employs a 12 gauge closer reinforcement 2910 within the
door.
[0113] Finally, the door 2724 incorporates edge or end channels
2920 (e.g., top, side or bottom channels) along the periphery of
the door. These channels are designed to mate with complementary
edge channels located on the door frame 2722 to form a tortuous
path. Namely, when the door 2724 is closed, the coupled channels
create a "step-like" air-tight path that is very difficult to
breach by noxious gas.
[0114] FIGS. 30-32 illustrate the top, bottom and side views of end
channels 2920 surrounding the periphery of the door 2724 of the
present invention. Specifically, the end channel resembles an
indentation (e.g., approximately 5/8") that runs along the entire
periphery of the door 2724. The function of these end channels 2920
is best understood when described in conjunction with the door
frame below.
[0115] FIGS. 30-32 also illustrate the use of ceramic fiber paper
3010 disposed between the outer 3020 and inner 3030 skin or pan of
the door 2724. Again, the ceramic fiber paper 3010 serves to
minimize thermal conduction such that heat applied to the outer
skin of the door would not be transferred to the inner skin of the
door.
[0116] FIGS. 33-39 illustrate various cross-sectional views of the
door 2724 engaging the door frame 2722. These various views
illustrate various coupling structures that are deployed along the
periphery of the door to ensure an air-tight seal when the door is
closed. The reader is encouraged to refer to these FIGs. when
reading the present description.
[0117] First, the top and sides of the door frame 2722 provide a
plurality of steps 3910 for forming a tortuous path when coupled
with the door 2724. This can be seen in FIGS. 34 and 39. Namely,
gases that are exterior to the modular enclosure must overcome at
least two right angle turns before they are able to penetrate into
the interior of the modular enclosure. Additionally, to further
enhance this tortuous path, gaskets 3410 are deployed along one
side of the steps 3910 (See FIG. 34). Finally, again the inner and
outer skins or pans of the door frame is separated by a layer of
ceramic fiber paper 3920 to minimize thermal conduction.
[0118] Second, interlocking weatherstrips are provided at the door
lockedge and at the door head. This can be seen on FIGS. 36 and 37.
The interlocking weatherstrips are made with the same material
formulation as the gaskets.
[0119] Third, a bottom portion of the door frame 2722 is provided
with a tongue and groove assembly. Specifically, a tongue 3510 is
mounted onto the door, whereas a groove 3520 is mounted on the
bottom portion of the door frame 2722. Additionally, a thin gasket
3530 is disposed in a trough located on the tongue 3510, such that
when the door is closed, the tongue 3510 engages against the groove
3520 by compressing on the thin gasket 3530. This structure again
ensures an air-tight seal when the door is closed.
[0120] FIG. 40 illustrates a front view, a top view and a side view
of the gasket 4000 of the present invention. In one embodiment, the
gasket has a thickness of approximately 0.3", and a width of
approximately 3.8". The length of the gasket is tailored to a
particular length as required.
[0121] In one embodiment, the gasket 4000 is formed into a long
sheet having a rectangular structure as shown in side view 4015.
Alternatively, the gasket 4000 can be formed such that there is a
slight indentation or depression 4022 on two sides of the gasket as
shown in side view 4020. These indentations assist the insulating
function performed by the gasket when it is compressed between two
adjoining shields. Alternatively, the gasket 4000 can be formed
such that there are two or more slight indentations or depressions
4032 on each side of the gasket as shown in side view 4030. It
should be noted that these indentations are exaggerated in FIG. 40
for reader appreciation.
[0122] In one embodiment, the formulation of the gasket material is
shown in FIG. 41 as a table. FIG. 41 illustrates a gasket
formulation that comprises 6 components: silicon compound, hydrated
alumina filler, flame retardant ingredient, Di Benzoyl Peroxide,
Minusil filler and Cross linking Peroxide. When applicable, FIG. 41
also provides specific manufacturers that carry these materials
under their trade names. However, those skilled in the art will
realize that equivalent materials from other manufacturers can be
substituted. Furthermore, although FIG. 41 provides a specific
formulation in terms of approximate proportions, those skilled in
the art will realize that slight modification from the disclosed
formulation will produce a gasket having similar properties.
[0123] The mixing procedure for the gasket material 4000 is as
follows:
[0124] 1) Put SE6035 on mill with a 1/2 inch gap. Allow to break
down and warm up for 2 minutes.
[0125] 2) Slowly add FR-2, AC-720, Cabot MS-7, HCC3144 black,
Perkadox S-50S-PS and Benzyl peroxide.
[0126] 3) Sweep pan and return the ingredients back into the
batch.
[0127] 4) Once all the ingredients are absorbed by the silicone
begin mixing.
[0128] 5) Roll the material up and mix end until all the
ingredients are blended homogeneously throughout the batch.
[0129] 6) Verify the batch is mixed properly by the use of an
oscillating disc rheometer or equivalent.
[0130] 7) Package material in a manner as not to allow
contamination of the material from outside sources.
[0131] It should be noted the above mixing procedure is provided
only as an example. Other mixing procedures can be deployed using
the formulation disclosed on FIG. 41 to form the gasket of the
present invention.
[0132] FIG. 42 illustrates an alternate structure for shields of
the present invention. Specifically, FIG. 42 illustrates an outer
skin of a shield having a protruding flange 4210, e.g.,
approximately 0.2". Additionally, the ceramic fiber paper 4220 is
extended such that a portion extends and covers the gasket 4230.
This extension is similarly applied to the outer skin 4205 such
that it, in turn, covers the extended portion of the ceramic fiber
paper 4220. A similar extension can be provided on the adjoining
shield, where only the ceramic fiber paper 4225 is also extended.
This alternate configuration may provide additional insulating
properties, because the gasket 4230 is further shielded from a
direct hazardous condition, e.g., heat and fire.
[0133] Additionally, FIG. 42 also shows an indentation 4215 in the
outer skin, where the gasket edge is recessed from the outer
surface of the shield. This structure again minimizes the direct
exposure of the gasket to hazardous conditions.
[0134] Furthermore, FIG. 42 also illustrates the use of additional
reinforcement or edge stiffeners 4240 on the side of the shields.
These stiffeners can be deployed to ensure that when the
male/female latches are engaged, uniform pressure is applied along
the entire length of the shields. Namely, if the shield is very
long and the male/female latches are deployed in wide intervals,
then it may be necessary to stiffen the sides of shields to ensure
that the air-tight seal is maintained.
[0135] FIG. 43 illustrates an alternate T-assembly or T-shield 4300
of the present invention. More specifically, FIG. 43 illustrates an
alternate embodiment in forming a T-shield as disclosed above. In
this embodiment, the T-shield 4300 is formed using three standard
vertical shields 4310 and a post 4320. One advantage of this
embodiment is its ease of installation, since the four pieces can
be handled individually, without having to install a fully
assembled T-shield which can be unwieldy. The post 4320 is
comprised of a pan and skin as disclosed above with the exception
that the core is not a three-layer core. Instead, the core of the
post 4320 is comprised of milled fiber only. Since the shields are
4" thick in one embodiment, the post 4320 is also 4" by 4" of any
desired height.
[0136] Additionally, unlike other shields, the post 4320 deploys
only female latches such that it can be mated with male latches
from three standard vertical shields 4310. Finally, gaskets 4330
are deployed at the junctures where the three standard shields are
mated to the post 4320.
[0137] FIG. 44 illustrates an alternate structure for a cap shield
of the present invention. Specifically, FIG. 44 illustrates an
outer skin of a cap shield 4400 having a protruding flange 4410.
The purpose of this protruding flange 4410 serves the same function
as discussed in FIG. 42. Namely, the protruding flange 4410 will
further protect the gasket 4420 that is disposed between the cap
shield 4400 and the vertical shield 4405.
[0138] FIG. 45 illustrates an alternate base shield 4500 of the
present invention. Specifically, the base shield 4500 is not
deployed in a pan and skin configuration. Instead, the base shield
4500 now comprises a top surface 4510 that is supported by a
plurality of steel reinforcement bars 4520, where poly-isocyanurate
4530 is deposited below the top surface 4510. The top surface and
reinforcement bars are formed from 14 gauge steel in one
embodiment. In practice, a sealant is typically sprayed onto the
floor of the facility before the base shield is deployed. One
advantage of this alternate base shield is that it is lighter than
the above disclosed base shield and thus, simplifies the
installation process.
[0139] FIG. 46 illustrates an alternate anchor plate 4600 of the
present invention. Specifically, anchor plate 4600 is now deployed
as an assembly having two separate portions: a front angled portion
4610 and a back angled portion 4620. In contrast to the above
described anchor plate, the present alternate anchor plate 4600 has
an air gap 4640 separating the two angled portions, thereby
minimizing thermal conduction at the anchor plate. Similar to the
above embodiment, gaskets 4630 are deployed above and below the
anchor plate assembly, with anchor screws 4650, being deployed to
hold the anchor assembly in place.
[0140] FIG. 47 illustrates an alignment of the front angled portion
4610 and a back angled portion 4620 of the present invention.
Specifically, front angled portion 4610 carries at least one anchor
screw hole 4612 and at least two alignment holes 4614. Similarly,
back angled portion 4620 carries at least one anchor screw hole
4622 and at least two alignment holes 4624. In practice, it is
desirable to align the anchor screw hole 4612 of the front angled
portion with the anchor screw hole 4622 of the back angled portion
as shown in FIG. 47 during installation. To assist in the
alignment, an alignment tool is illustrates in FIG. 48.
[0141] FIG. 48 illustrates an anchor plate alignment tool 4800 of
the present invention. The alignment tool 4800 comprises a handle
4810, a flat plate 4820 and four studs 4830. In practice, an
installer will roughly align the two angled portions side by side.
The installer will then insert the align tool 4800 such that the
four studs 4830 will engage the alignments holes 4614 and 4624 of
FIG. 47. When the alignment tool is engaged, the installer will now
be sure that the anchor screw holes 4612 and 4622 are now properly
aligned. The reason is that the alignment holes and anchor screw
holes are drilled into the angled portions in predefined distances.
This novel approach allows for rapid alignment of the anchor plate
assembly during installation.
[0142] FIG. 49 illustrates an interior front view of the back
angled portion 4620 of the anchor plate assembly 4600 of the
present invention. Specifically, the back angled portion 4620
comprises a plurality of notches or openings 4910 that are
generally equally spaced in accordance with the width of the
deployed vertical shields. These notches 4910 are provided as
access openings for shield installation tools. Specifically, the
vertical shield can be quite heavy, thereby making it unwieldy
during installation or removal of the vertical shields. By
providing these access openings, the vertical shields can be lifted
and shifted along the anchor plate, as required.
[0143] FIG. 50 illustrates the alternate anchor plate assembly 4600
as deployed next to the alternate base shield 4500 of the present
invention. FIG. 50 better illustrates the air gap or fire break
4640 that is provided by the alternate anchor plate assembly
4600.
[0144] FIG. 51 illustrates an isometric view of a plurality of
vertical shields 5100 that are deployed in conjunction with a post
5200 to form a corner of the present invention. Specifically, this
FIG. 51 is provided to illustrate the differences between the
configuration of a protective enclosure that is formed using a post
versus the T-shields and corner shields as disclosed in FIGS. 14-17
above.
[0145] While the foregoing is directed to the preferred embodiment
of the present invention, other and further embodiments of the
invention may be devised without departing from the basic scope
thereof, and the scope thereof is determined by the claims that
follow.
* * * * *