(19) United States
`(12) Patent Application Publication (10) Pub. No.: US 2012/0092504 A1
`(43) Pub. Date: Apr. 19, 2012
`
`Murphy et al.
`
`US 20120092504Al
`
`(54)
`
`APPARATUS FOR HOUSING
`SURVEILLANCE DEVICES, AND A
`SURVEILLANCE UNIT COMPRISING THE
`APPARATUS
`
`(76)
`
`Inventors:
`
`Joseph Nicholas Murphy, Dublin
`(IE); David Barry Murphy, Dublin
`(IE)
`
`(21) Appl. No.:
`
`13/377,957
`
`(22) PCT Filed:
`
`Jun. 17, 2010
`
`(86) PCT No.:
`
`PCT/IE10/00039
`
`§ 371 (0(1),
`(2), (4) Date:
`
`Dec. 13, 2011
`
`(30)
`
`Foreign Application Priority Data
`
`Jun. 17, 2009
`
`(GB) ................................. .. 09104316
`
`Publication Classification
`
`(51)
`
`Int. Cl.
`H04N 7/18
`
`(2006.01)
`
`(52) us. Cl. ............................... .. 348/159; 348/E07.085
`
`(57)
`
`ABSTRACT
`
`A surveillance unit (1) comprises a support pole (3) and
`apparatus (5) mounted on the support pole (3) for housing
`surveillance cameras (6,7) and infrared heat detectors (8) in a
`controlled environment. The apparatus (5) comprises a pri-
`mary housing (10) defining a primary hollow interior region
`(11) supported on a main support platform (21) which is
`mounted on the support pole (3). A secondary housing (14)
`defining a secondary hollow interior region (15) is coupled to
`the primary housing (10) by a tubular coupling element (17)
`which defines a communicating passageway (18) for commu-
`nicating the primary and secondary hollow interior region
`(11,15). The secondary housing (14) comprises a lower sec-
`ondary shell (68) of polycarbonate material and an upper
`secondary shell (73) which form the secondary hollow inte-
`rior region (15). A PTZ camera (7) is located in a central first
`chamber (87) ofthe secondary hollow interior region (15) and
`eight first cameras (6) are located in the secondary hollow
`interior region (15) spaced apart at 45° intervals around the
`central first chamber (87). Medium and low voltage panels
`(59,60) are located in the primary hollow interior region (11)
`for controlling and monitoring data from the cameras (6,7)
`and the infrared heat detectors (8). An air conditioning unit
`(31) located in the primary housing (10) controls the tempera-
`ture of air within the primary and secondary hollow interior
`regions (11,15) in order to maintain a controlled temperature
`environment
`
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`AXIS EXHIBIT 1007-1
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`Patent Application Publication
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`Apr. 19, 2012 Sheet 1 of 10
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`Patent Application Publication
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`Apr. 19, 2012 Sheet 2 of 10
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`US 2012/0092504 A1
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`Patent Application Publication
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`Apr. 19, 2012 Sheet 3 0f 10
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`Patent Application Publication
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`Apr. 19, 2012 Sheet 4 of 10
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`US 2012/0092504 A1
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`AXIS EXHIBIT 1007-5
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`Patent Application Publication
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`Patent Application Publication
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`Patent Application Publication
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`Patent Application Publication
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`Patent Application Publication
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`Apr. 19, 2012 Sheet 9 0f 10
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`Patent Application Publication
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`Apr. 19, 2012 Sheet 10 of 10
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`US 2012/0092504 A1
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`US 2012/0092504 A1
`
`Apr. 19, 2012
`
`APPARATUS FOR HOUSING
`SURVEILLANCE DEVICES, AND A
`SURVEILLANCE UNIT COMPRISING THE
`APPARATUS
`
`[0001] The present invention relates to apparatus for hous-
`ing surveillance devices, and the invention also relates to a
`surveillance unit comprising the apparatus. In particular, the
`invention relates to such apparatus and a surveillance unit of
`the type suitable for monitoring the grounds of a building, the
`perimeter of an estate, a pipeline or the like, although the
`invention is not limited to such apparatus and surveillance
`units.
`
`Surveillance apparatus for carrying out surveillance
`[0002]
`of the grounds of a building, the perimeter of an estate, a
`pipeline, for example, a pipeline, such as oil pipelines extend-
`ing above ground over a desert for many hundreds of kilome-
`tres are known, and in general, comprise pole mounted digital
`cameras. One or more upstanding poles, in general are pro-
`vided with respective platforms mounted on the top thereof,
`and one or more the digital cameras are mounted on a mount-
`ing bracket extending upwardly from the platform or depend-
`ing downwardly therefrom. In general, servo -motors are pro-
`vided for rotating the cameras about respective vertical axes,
`and for tilting the cameras about respective horizontal axes.
`Such camera arrangements require control circuitry, for both
`controlling the camera functions as well as for controlling the
`servo-motors. The control circuitry for controlling the camera
`functions typically is located within a housing of the camera
`while the control circuitry for controlling the servo-motors is
`located in a separate housing mounted on the platform. While
`such arrangements of surveillance apparatus are adequate in
`areas which are not subjected to extreme environmental con-
`ditions, they are unsuitable in areas which are subjected to
`extreme environmental conditions, and in particular extreme
`temperatures such as extreme low temperatures of the order
`of — 1 7° C. and extreme high temperatures ofthe order of +460
`C. Temperatures of the order of +460 C. are encountered in
`tropical regions, and in particular in desert regions where
`pipelines for oil and other liquids and gases are commonly
`laid over ground and extend for many hundreds ofkilometres.
`Temperatures of the order of —l7° C. are commonly experi-
`enced in arctic andAntarctic conditions, likewise where pipe-
`lines for oil and other liquids and gases are laid over ground.
`Digital cameras and control circuitry therefor, as well as
`control circuitry for controlling the orientation of the digital
`cameras, in general, comprise integrated circuitry which is
`formed on one or more dies. Such integrated circuits and dies,
`in general, are only capable of operating within a limited
`range of temperatures, and thus, are entirely unsuitable for
`operating in regions of excessively high or excessively low
`temperatures, such as those discussed above.
`[0003] Additionally, in such surveillance apparatus of the
`type know heretofore data from the cameras and any other
`surveillance instruments are hard wired back to a central
`
`monitoring station. This can involve significant expense par-
`ticularly, where the apparatus is required to monitor the
`perimeter of a relatively large estate, or monitor pipeline of
`many hundreds of kilometres in length, or to monitor the
`borders of a country or state.
`[0004] There is therefore a need for apparatus for housing
`surveillance devices which addresses at least some of these
`
`problems, and there is also a need for a surveillance unit
`which likewise addresses at least some of the problems of
`devices known heretofore.
`
`[0005] The present invention is directed towards providing
`such apparatus and a surveillance unit.
`[0006] According to the invention there is provided appa-
`ratus for housing surveillance devices, the apparatus compris-
`ing a primary housing defining a primary hollow interior
`region for housing control circuitry, and being adapted to
`communicate with an air conditioning element for receiving
`conditioned air therefrom to produce a controlled environ-
`ment in the primary hollow interior region, a secondary hous-
`ing defining a secondary hollow interior region for housing
`the surveillance devices,
`the secondary housing being
`coupled to the primary housing with the secondary hollow
`interior region and the primary hollow interior region com-
`municating with each other through a communicating pas-
`sageway, an air accommodating duct extending between the
`primary hollow interior region and the secondary hollow
`interior region through the communicating passageway, a
`circulating means for circulating air between the primary
`hollow interior region and the secondary hollow interior
`region to produce a controlled environment in the secondary
`hollow interior region, the circulating means being located
`for circulating the air from the primary hollow interior region
`to the secondary hollow interior region through one of the air
`accommodating duct and the communicating passageway
`externally ofthe air accommodating duct and returning the air
`from the secondary hollow interior region to the primary
`hollow interior region through the other of the air accommo-
`dating duct and the communicating passageway externally of
`the air accommodating duct.
`[0007]
`Preferably, a central partition element is located in
`the secondary hollow interior region ofthe secondary housing
`forming a central first chamber and an outer chamber extend-
`ing around the central first chamber, the outer chamber com-
`municating with the central first chamber for accommodating
`air therebetween.
`
`[0008] Advantageously, at least two radial partition ele-
`ments located in the secondary hollow interior region of the
`secondary housing extending from the central partition ele-
`ment divide the outer chamber into at least two outer second
`
`chambers. Ideally, the radial partition elements are equi-
`spaced circumferentially around the central partition ele-
`ment. Preferably, at least four radial partition elements are
`provided dividing the outer chamber into four outer second
`chambers.
`
`In one aspect of the invention the central first cham-
`[0009]
`ber communicates with one of the air accommodating ducts
`and the communicating passageway externally of the air
`accommodating duct, and each outer second chamber com-
`municates with the other one of the air accommodating duct
`and the communicating passageway externally of the air
`accommodating duct. Preferably, the central first chamber
`communicates with the air accommodating duct.
`[0010]
`In another aspect ofthe invention each outer second
`chamber is adapted for housing at least one surveillance
`device provided by a first camera. Preferably, each outer
`second chamber is adapted to house two first cameras.
`[0011]
`In one embodiment of the invention a mounting
`means is provided for mounting each one of the first cameras
`in the corresponding outer second chamber. Preferably, each
`mounting means comprises an adjustable mounting means.
`Advantageously, each mounting means facilitates adjustment
`
`AXIS EXHIBIT 1007-12
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`

`US 2012/0092504 A1
`
`Apr. 19, 2012
`
`of the angle at which the corresponding first camera is
`directed in a substantially vertical plane.
`[0012]
`In another aspect ofthe invention an annular mount-
`ing disc is located in the secondary hollow interior region of
`the secondary housing extending around and outwardly from
`the central partition element into the outer chamber, and
`dividing the outer chamber into a lower outer chamber and an
`upper outer chamber,
`the outer second chambers being
`formed in the lower outer chamber by the radial partition
`elements, the mounting means for mounting the first cameras
`in the outer second chambers being mounted on the mounting
`disc. Preferably, the mounting disc defines a plurality of air
`accommodating openings for accommodating air between
`the outer second chambers and the upper outer chamber.
`[0013] Advantageously, the first cameras are provided in
`the outer second chambers.
`
`Preferably, each first camera located in the outer
`[0014]
`second chambers comprises a vari-focal lens.
`[0015]
`In another embodiment of the invention each first
`camera provided in the outer second chambers is a 1/3 day/
`night intemet protocol camera.
`[0016]
`In a further embodiment of the invention each outer
`second chamber is adapted for housing a surveillance device
`comprising an infrared heat detector. Preferably, the infrared
`heat detectors are provided in the outer second chambers.
`[0017]
`In another embodiment of the invention the central
`first chamber is adapted to accommodate a surveillance
`device provided by a second camera. Preferably, the second
`camera is located in the central first chamber. Advanta-
`
`geously, the second camera located in the central first cham-
`ber comprises a pan tilt and zoom camera.
`[0018]
`Preferably,
`the secondary housing is
`beneath the primary housing.
`[0019]
`In one aspect ofthe invention the secondary housing
`comprises and upper secondary housing element coupled to
`the primary housing, and a lower secondary housing element
`of transparent material sealably secured to the upper second-
`ary housing element. Preferably, the lower secondary housing
`element is releasably secured to the upper secondary housing
`element.
`
`located
`
`Preferably, a cable accommodating duct extends
`[0020]
`between the secondary housing and the primary housing
`communicating the secondary hollow interior region with the
`primary hollow interior region for accommodating electrical
`cables between the secondary hollow interior region and the
`primary hollow interior region.
`[0021]
`In another embodiment of the invention the primary
`housing comprises an upper primary housing element and a
`lower primary housing element sealably secured to the upper
`primary housing element. Preferably,
`the lower primary
`housing element is releasably secured to the upper primary
`housing element.
`[0022]
`In another embodiment of the invention the cable
`accommodating duct extends between the upper secondary
`housing element and the lower primary housing element.
`[0023]
`Preferably, the upper primary housing element is of
`double skinned construction.
`
`In a further aspect of the invention a main support
`[0024]
`platform is provided for supporting the primary housing, with
`the secondary housing located beneath the primary housing,
`the main support platform being adapted for mounting to a
`support element. Preferably, the main support platform is
`adapted to accommodate the communicating passageway
`extending between the primary housing and the secondary
`
`housing through the main support platform. Advantageously,
`the main support platform is adapted for mounting on a sup-
`port element provided by a support pole. Ideally, the main
`support platform is adapted for mounting on top of a support
`pole.
`In one aspect of the invention the main support
`[0025]
`platform defines a mounting socket for receiving the support
`element. Preferably,
`the mounting socket extends down-
`wardly from the support platform and defines a downwardly
`facing open mouth for accommodating the support element
`upwardly into the mounting socket.
`[0026] Advantageously,
`the main support platform is
`mounted on a support pole.
`[0027]
`In one embodiment of the invention a coupling
`means is provided for coupling the secondary housing with
`the primary housing, the coupling means defining the com-
`municating passageway. Preferably, the main support plat-
`form is adapted for accommodating the coupling means
`therethrough. Advantageously, the main support platform is
`adapted for accommodating the cable duct therethrough.
`[0028]
`In another aspect of the invention the primary hous-
`ing defines a main chamber for accommodating the air con-
`ditioning unit, the main chamber being adapted for receiving
`the air conditioning unit with the primary hollow interior
`region communicating with the air conditioning unit for
`receiving the conditioned air therefrom and for returning air
`to be conditioned thereto with the primary and secondary
`hollow interior regions, the communicating passageway and
`the air conditioning unit forming a closed system.
`[0029]
`In one embodiment of the invention the air condi-
`tioning unit is located in the main chamber.
`[0030]
`In another aspect of the invention the circulating
`means comprises an electrically powered fan. Preferably, the
`circulating means is located in the air accommodating duct.
`[0031]
`In one embodiment of the invention the air accom-
`modating duct extends through the primary hollow interior
`region and terminates adjacent the main chamber. Preferably,
`the air accommodating duct extends substantially horizon-
`tally in the primary hollow interior region, and extends down-
`wardly into the secondary hollow interior region. Advanta-
`geously,
`the downwardly extending portion of the air
`accommodating duct terminates in the central first chamber.
`[0032]
`In a further embodiment ofthe invention a mounting
`bracket secured to the main support platform carries a mast to
`which an antenna is mounted.
`
`In a still further embodiment of the invention an
`[0033]
`electrical circuit support platform is located in the primary
`hollow interior region of the primary housing for supporting
`data processing circuitry for processing data from the surveil-
`lance devices for relaying to a remote central monitoring
`station. Preferably, the electrical circuit support platform is
`adapted for accommodating a radio transmitter for transmit-
`ting data from the data processing circuitry to the central
`monitoring station. Preferably, the transmitter comprises a
`radio transmitter.
`
`[0034] Advantageously, the electrical circuit support plat-
`form is adapted for mounting a radio transmitter receiver
`thereon for receiving control signals from the central moni-
`toring station for controlling the operation of at least one of
`the surveillance devices.
`
`In another embodiment of the invention the data
`[0035]
`processing circuitry is adapted for processing signals
`received from each infrared heat detector.
`
`AXIS EXHIBIT 1007-13
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`US 2012/0092504 A1
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`Apr. 19, 2012
`
`In another embodiment of the invention a backup
`[0036]
`power supply is provided in the primary hollow interior
`region of the primary housing for powering the surveillance
`devices. Preferably, the backup power supply is adapted for
`powering the data processing circuitry and the radio transmit-
`ter receiver.
`
`[0037] The invention also provides a surveillance unit com-
`prising an elongated upstanding support pole, and apparatus
`according to the invention mounted thereon.
`[0038]
`Preferably, the apparatus is mounted on the support
`pole adjacent the top thereof.
`[0039] The advantages of the invention are many. A par-
`ticularly important advantage of the apparatus according to
`the invention is that the surveillance devices such as the
`
`cameras when located in the secondary hollow interior region
`of the secondary housing are maintained in a temperature
`controlled environment, and thus are entirely isolated from
`the environment exterior ofthe apparatus. A further important
`advantage of the apparatus according to the invention is that
`the image data captured by the cameras is relayed to a remote
`central monitoring station by radio transmission, thus avoid-
`ing the need for hard wiring the surveillance devices such as
`cameras to the central monitoring station, thus significantly
`reducing the installation costs of the apparatus.
`[0040] By locating the data processing circuitry and other
`control circuitry in the primary hollow interior region and the
`cameras in the secondary hollow interior region a further
`advantage of the invention is achieved in that heat generated
`by the control circuitry is isolated from the cameras, and thus,
`has little or no affect on the cameras. A further advantage of
`the invention is achieved when the air circulating means and
`the air accommodating duct are arranged to pass the return air
`from the secondary hollow interior region to the primary
`hollow interior region prior to being returned to the air con-
`ditioning element in that heat generated by the control cir-
`cuitry in the primary hollow interior region is removed from
`the air being circulated through the air conditioning element
`prior to being returned to the secondary hollow interior
`region.
`[0041] The provision of the air accommodating duct
`extending into the primary hollow interior region and termi-
`nating adjacent the air conditioning element provides a par-
`ticularly important advantage when the air is being circulated
`through the air accommodating duct from the primary hollow
`interior region to the secondary hollow interior region, since
`the air delivered to the secondary hollow interior region is
`drawn directly from the air conditioning element.
`[0042] The invention will be more clearly understood from
`the following description of a preferred embodiment thereof
`which is given by way of example only with reference to the
`accompanying drawings in which:
`[0043]
`FIG. 1 is a front elevational view of a surveillance
`unit according to the invention,
`[0044]
`FIG. 2 is a side elevational view of the surveillance
`unit of FIG. 1,
`[0045]
`FIG. 3 is a rear end view of the surveillance unit of
`FIG. 1,
`FIG. 4 is a cross-sectional side elevational view of
`[0046]
`apparatus also according to the invention of the surveillance
`unit of FIG. 1,
`[0047]
`FIG. 5 is an enlarged cross-sectional side elevational
`view of the apparatus of FIG. 4,
`[0048]
`FIG. 6 is an exploded side elevational view of the
`apparatus of FIG. 4,
`
`FIG. 7 is a side elevational view of a portion of the
`[0049]
`surveillance unit of FIG. 1,
`[0050]
`FIG. 8 is an underneath plan view of the portion of
`FIG. 7 of the surveillance unit of FIG. 1,
`[0051]
`FIG. 9 is a front elevational view of the portion of
`FIG. 7 of the surveillance unit of FIG. 1,
`[0052]
`FIG. 10 is a rear end elevational view of the portion
`of FIG. 7 of the surveillance unit of FIG. 1,
`[0053]
`FIG. 11 is a cross-sectional end elevational view of
`a portion of the apparatus of FIG. 4,
`[0054]
`FIG. 12 is an end elevational view of anotherportion
`of the apparatus of FIG. 4,
`[0055]
`FIG. 13 is a side elevational view of a part of the
`portion of FIG. 11 of the apparatus of FIG. 1,
`[0056]
`FIG. 14 is a rear end elevational view of the part of
`FIG. 13,
`FIG. 15 is a top plan view of the part of FIG. 13,
`[0057]
`FIG. 16 is a cross-sectional side elevational view of
`[0058]
`the part of FIG. 13,
`[0059]
`FIG. 17 is a front end elevational view of the part of
`FIG. 13,
`FIG. 18 is a cross-sectional side elevational view of
`[0060]
`another portion of the apparatus of FIG. 4,
`[0061]
`FIG. 19 is a top plan view ofthe portion of FIG. 18
`of the apparatus of FIG. 4,
`[0062]
`FIG. 20 is a side elevational view of another portion
`of the apparatus of FIG. 4,
`[0063]
`FIG. 21 is a top plan view ofthe portion of FIG. 20
`of the apparatus of FIG. 4,
`[0064]
`FIG. 22 is a transverse cross-sectional side eleva-
`tional view of the portion of FIG. 20 of the apparatus of FIG.
`43
`FIG. 23 is a top plan view of another part of the
`[0065]
`apparatus of FIG. 4,
`[0066]
`FIG. 24 is a top plan view of another part of the
`apparatus of FIG. 4,
`[0067]
`FIG. 25 is a cross-sectional side elevational view of
`the portion of FIG. 24 of the apparatus of FIG. 4,
`[0068]
`FIG. 26 is a cross-sectional side elevational view of
`another part of the apparatus of FIG. 4,
`[0069]
`FIG. 27 is a side elevational view of a detail of the
`apparatus of FIG. 4,
`[0070]
`FIG. 28 is an end elevational view of the detail of
`FIG. 27 of the apparatus of FIG. 4,
`[0071]
`FIG. 29 is a top plan view of another part of the
`apparatus of FIG. 4,
`[0072]
`FIG. 30 is a side elevational view of another part of
`the apparatus of FIG. 4, and
`[0073]
`FIG. 31 are top plan views of electrical panels ofthe
`apparatus of FIG. 4.
`[0074] Referring to the drawings there is illustrated a sur-
`veillance unit according to the invention indicated generally
`by the reference numeral 1 for monitoring the grounds of a
`building, the perimeter of an estate, a pipeline or the like. The
`surveillance unit 1 comprises a ground mounted upstanding
`support pole 3 on which apparatus also according to the
`invention and indicated generally by the reference numeral 5
`is mounted for housing surveillance devices in a temperature
`controlled environment. In this embodiment of the invention
`the surveillance devices are first and second cameras 6 and 7,
`respectively, and infrared heat detectors 8. Eight first cameras
`6 which are 1/3 day/night internet protocol (IP) cameras with
`van-focal lenses are provided, and one second camera 7
`which is a Pan Tilt and Zoom (PTZ) camera is provided.
`
`AXIS EXHIBIT 1007-14
`
`AXIS EXHIBIT 1007-14
`
`

`

`US 2012/0092504 A1
`
`Apr. 19, 2012
`
`[0075] The apparatus 5 comprises a primary housing 10
`which defines a primary hollow interior region 11, and a
`secondary housing 14 which defines a secondary hollow inte-
`rior region 15. The secondary housing 14 is coupled to the
`primary housing 10 by a coupling means, namely, a tubular
`coupling element 17 extending upwardly from the secondary
`housing 14 into the primary hollow interior region 11 of the
`primary housing 10. The coupling element 17 defines a com-
`municating passageway 18 through which the primary and
`secondary hollow interior regions 11 and 15 communicate for
`accommodating flow of air between the primary and second-
`ary hollow interior regions 11 and 15, as will be described
`below. The primary hollow interior region 11, the secondary
`hollow interior region 15 and the communicating passageway
`18 together form an air tight chamber 20.
`[0076] A main support platform 21 mounts the apparatus 5
`on the support pole 3 adjacent the top thereof. A socket
`element 22 mounted on the main support platform 21 and
`extending downwardly therefrom defines a downwardly
`extending bore 23 which terminates in a downwardly facing
`open mouth 24 for engaging a top portion 25 of the support
`pole 3 in the bore 23. Gusset plates 27 extending from the
`socket element 22 to the main support platform 21 strengthen
`the main support platform 21.
`[0077] An opening 28 in the main support platform 21
`accommodates the coupling element 17 therethrough from
`the secondary housing 14 into the primary hollow interior
`region 11 of the primary housing 10.
`[0078] The primary housing 10 defines a main chamber 30
`for accommodating an air conditioning element, namely, an
`air conditioning unit 31 for controlling the temperature of the
`air within the primary and secondary hollow interior regions
`11 and 15 as will be described below. The main chamber 30 is
`
`communicable with the primary hollow interior region 11 for
`accommodating air to and from the air conditioning unit 31
`between the primary hollow interior region 11 and the main
`chamber 30, so that the main chamber 30 and the air condi-
`tioning unit 31 together with the chamber 20 formed by the
`primary and secondary hollow interior regions 11 and 15 and
`communicating passageway 18 formed by the coupling ele-
`ments 17 form a completely enclosed airtight system within
`which air conditioned by the air conditioning unit 31 is cir-
`culated and returned to the air conditioning unit 31.
`[0079]
`In this embodiment of the invention the air condi-
`tioning unit 31 is an air conditioning unit sold by Fujitsu
`General (U.K.) Co. Limited of Herts., Great Britain under
`Model No. AKY9U. The air conditioning unit 31 comprises
`heating, cooling and dehumidifying functions, and is oper-
`able to control the temperature of the air in the primary and
`secondary hollow interior regions 11 and 15 at a temperature
`in the range of 18° C. to 25° C. even when the external
`temperature drops as low as —l7° C. and rises to a temperature
`as high as +46° C. The air conditioning unit 31 comprises a
`heat exchanger (not shown) and an internal in-built high
`pressure cross fan (also not shown) for circulating air through
`the heat exchanger and for delivering conditioned air from the
`heat exchanger to the primary hollow interior region 11 and
`for drawing return air from the hollow interior region 11 into
`the heat exchanger. The air conditioning unit 31 is micropro-
`cessor controlled by its own internal microprocessor, and
`temperature sensors (not shown) adjacent an air inlet to the
`heat exchanger, and an air outlet from the heat exchanger
`monitor the return air temperature from the primary hollow
`interior region 11 and the flow air temperature to the primary
`
`hollow interior region 11 for maintaining the temperature in
`the primary and secondary hollow interior regions 11 and 15
`within the temperature range of 18° C. to 25° C. Such air
`conditioning units as the air conditioning unit 31 will be well
`known to those skilled in the art, and further description
`should not be necessary.
`[0080] Turning now to the primary housing 10, the primary
`housing 10 is of plastics material and comprises a lower
`primary housing element, namely, a lower primary shell 34 of
`single skin construction and an upper primary housing ele-
`ment, namely, an upper primary shell 35 of double skin con-
`struction having an inner skin 32 and an outer skin 33 defining
`a void 36 therebetween which is filled with a heat insulating
`plastics material, namely, an expanded plastics material, see
`FIG. 5. The lower and upper primary shells 34 and 35 are
`sealably secured together to form the primary hollow interior
`region 11 and the main chamber 30. The lower primary shell
`34 comprises a base wall 37, a pair of spaced apart upstanding
`side walls 38 extending upwardly from the base wall 37 and
`spaced apart front and rear end walls 39 and 40 extending
`upwardly from the base wall 37 joining the side walls 38. The
`upper primary shell 35 comprises a top wall 42 a pair of
`spaced apart downwardly extending side wall 43 extending
`downwardly from the top wall 42 and spaced apart front and
`rear end walls 44 and 45 extending downwardly from the top
`wall 42 between the side walls 43.
`
`[0081] A lower flange 47 extends around the periphery of
`the side walls 43 and front and rear end walls 44 and 45 ofthe
`
`upper primary shell 35 adjacent the bottom thereof for engag-
`ing a corresponding upper flange 48 which extends around the
`side walls 38 and front and rear end walls 39 and 40 of the
`
`lower primary shell 34 for securing the lower and upper
`primary shell 34 and 35 together. A sealing gasket 50 is
`located between the lower flange 47 and the upper flange 48
`for sealably securing the lower and upper primary shells 34
`and 35 between the lower and upper flanges 47 and 48.
`Screws (not shown) secure the lower and upper flanges 47 and
`48 with the stealing gasket 50 therebetween together.
`[0082] Grills 49 in the side walls 38 of the lower primary
`shell 34 and a grill 51 in the rear end wall 40 of the lower
`primary shell 34 communicate with galleries (not shown)
`within the main chamber 30 for accommodating external air
`through the heat exchanger of the air conditioning unit 31 for
`accommodating air through heat exchange coils of a refrig-
`eration unit of the heat exchanger for transferring heat there-
`from. The galleries within the main chamber 30 are com-
`pletely isolated from the remaining portion of the main
`chamber 30 and do not in any way communicate with the
`primary hollow interior region 11 in order to maintain the
`primary hollow interior region 11 and the secondary hollow
`interior region 15 together with the said remaining portion of
`the main chamber 30 a completely sealed enclosed unit which
`is isolated from the external environment.
`
`[0083] The base wall 37 of the lower primary shell 34 is
`secured to the main support platform 21 by screws (not
`shown). The air conditioning unit 31 is secured to the base
`wall 37 of the lower primary shell 34 by wing nuts 52 on
`threaded rods 53 extending upwardly from the base wall 37 of
`the lower primary shell 34. An opening 54 in a transversely
`extending wall 55 within the primary housing 10, which
`separates the main chamber 30 within which the air condi-
`tioning unit 31 is located from the primary hollow interior
`
`AXIS EXHIBIT 1007-15
`
`AXIS EXHIBIT 1007-15
`
`

`

`US 2012/0092504 A1
`
`Apr. 19, 2012
`
`region 11, accommodates flow air from the air conditioning
`unit 31 and return air to the air conditioning u