Abstract:
A system for generating evaporative cooling supported by a portable means. In particular, the present invention is related to a system and method for cooling livestock during various stages of transport or relocation. A hydraulic system is ideally described that supplies cooling liquid over at least the length of a mobile carrier to utilize evaporative cooling via nozzles and fans that can be controlled all together or separately.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    The benefit of priority of U.S. Provisional Patent Application No. 61/294,698 filed Jan. 13, 2010 in the name of Billy Bain for “Portable Livestock Cooling System” is hereby claimed. The disclosure of said U.S. Provisional Patent Application No. 61/294,698 is hereby incorporated herein by reference, in its entirety, for all purposes. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The present invention relates generally to a portable cooling system employing evaporative cooling. In particular, the present invention is related to a system and method for cooling livestock during various stages of transport or relocation. 
       RELATED ART 
       [0003]    The use of evaporative cooling is a rapid but safe method for cooling live animals. The transport of animals in warm climates, particularly during high seasonal temperatures, creates a variety of problems not previously resolved in the art. In particular, loading, transport, and unloading of livestock during high temperatures increases the likelihood of heat related health issues, including, but not limited to, heat stress or stroke, suffocation, and death. 
         [0004]    Transporting poultry exacerbates the above problems due to the particular sensitivity of poultry to high temperatures. Birds are homoeothermic creatures—they produce heat to maintain a relatively constant body temperature. A five-pound chicken has the ability to produce over 50 BTUs of heat per hour and must rid itself of the same amount of heat per hour to maintain constant body temperature. The body temperature of poultry averages around 104-107° F., but will fluctuate depending upon the environmental temperature. Poultry has an easier time maintaining a constant body temperature with an environmental temperature of at least 10-15° less than its core body temperature. Moreover, there is a greater margin for error on the low temperature side, such that a chicken&#39;s body temperature in cold weather can drop as low as 73° F. before becoming fatal. There is much less flexibility, however, on the high temperature side—where an upper lethal limit on core temperature is 113-117° F. Therefore, a chicken must be able to constantly rid itself of excess body heat. 
         [0005]    Poultry is generally raised in large specialized coops or houses (also known as broiler houses), that utilize evaporative cooling. Hundreds or even thousands of birds are kept in chicken coops at a temperature of at least 10-15° less than their core body temperature to maintain healthy and timely growth. The evaporative cooling system in the coops encompasses foggers, large fans, and/or misters. Foggers are cooling liquid systems which spray fine particles of cooling liquid into the air and bring down the ambient temperature. Through humidity controlled cooling, liquid discharge of the foggers is an ideal environment for the poultry that is sufficient for survival. Foggers coupled with fans minimize the effect of heat produced by the birds. Birds don&#39;t sweat, and therefore depend on losing heat through respiration and releasing heat from surfaces such as wattles, shanks, and unfeathered areas under the wings. Increasing air movement helps birds lose excess body heat. 
         [0006]    While poultry is grown in a controlled environment such that the birds are not accustomed to the heat outside of the coop, they must, however, be transported to processing centers and are generally done so at their heaviest weight when they are most susceptible to heat related illnesses. Large chicken houses can easily accommodate the resources necessary for cooling instruments such as fans, foggers and the like. Transport vehicles for hauling livestock and poultry, however, are limited in space for handling such cooling instruments. While a vehicle traveling down the road generally provides adequate wind buildup inside the trailer to keep the birds cool, loading, unloading, and vehicle breakdown creates significant obstacles in maintaining the health of the birds. 
         [0007]    Chickens to be transported to a slaughter house are generally first removed from the coop and placed together in small cages that are stacked and/or loaded atop a transport trailer. The birds are caged in very close confines, wherein the loading process generally takes about 45 minutes or more. This amount of time spent in close quarters results in a rapid increase in body temperature, particularly for birds that are experiencing the outside heat for the first time in their lives. Temperatures in many southern U.S. states during warm months can far exceed 100° F., causing numerous fatalities. On average, the DOA (“death on arrival”) rate for birds from heat related causes can be as much as 11% or more. Birds that arrive DOA are not suitable for their intended uses, particularly human consumption. Similar problems arise during unloading and when transport vehicles break down on the side of the road. 
         [0008]    The transport of poultry ideally requires at least a transport vehicle, a vehicle to carry a loading machine or forklift, a vehicle that contains or carries a portable cooling apparatus, and a portable toilet for the workers employed in the catching and loading process since many farms that raise such animals (e.g., poultry) do not have readily accessible and/or public toilet facilities. If these systems can be minimized to two or even one vehicle, the costs and savings in labor over the present systems could be substantial. 
         [0009]    Attempts have been made to address cooling problems. Sullivan et al. (U.S. Pat. Nos. 6,546,743 &amp; 6,796,136) discloses a mobile evaporative cooling apparatus on a van-type trailer with fans and misters that expel water into a mixing chamber for being drawn into the air stream of the back of electric fans out towards the intended target. There are numerous problems with this design. First, the use of electric fans necessitates a strong electric power source that is generally less powerful than hydraulic fans. Moreover, having water propelled into and through an electric fan is an inherent hazard, in addition to creating an environment where the electric fan motor corrodes and deteriorates rapidly over time. Second, the necessity of having an encased mixing chamber takes up the entirety of available space on the cooling trailer, and does not allow for additional equipment needed on sight during the loading of poultry, such as water tanks for the system, a portable toilet for the workers, or the capacity to load a forklift onto the trailer. Third, the fan positioning of the trailer in Sullivan et al. does not provide a coverage area greater than the length of the trailer, such that it must be parked close to perfectly in line with the trailer to be loaded with livestock. 
         [0010]    Similarly, Maynor (U.S. Pat. No. 6,382,141) calls for the use of electric fans and teaches away from using spraying systems that propel water directly onto the animals. In addition, the design of Maynor&#39;s trailer is not large enough to carry sufficient water for the process, instead relying on a water supply at the location where the system is to be utilized Likewise, the trailer doesn&#39;t have the coverage capacity, nor would it be able to include a portable toilet for the workers or accommodate a forklift 
         [0011]    Additionally, a Koolchick system by Techno-Catch LLC (www.chickencatcher.com/koolchick.cfm) provides a fan system utilizing evaporative cooling with hydraulic power, but fails to provide the expansive coverage that is desired, provides only four 8-foot fans with a mere 100,000 CFM, has a limited sprayer coverage that would be incapable of soaking the poultry, fails to include a separate hydraulic connection system for each fan, and fails to provide for angled fans to create an ambient gas environment of evaporative cooling the length of such system. Moreover, the Koolchick system fails to include many additional features and advantages of the present system. 
         [0012]    In consequence, the art continues to seek improvements in means for transporting and loading livestock, with particular attention to poultry, such that heat related health issues are decreased or avoided. While the teaching of the above cited art fails to provide the advantages of the present system, the above cited references are incorporated herein by reference. The embodiments of the present invention, methods and systems disclosed herein, that create solutions to the problems raised above. 
       SUMMARY 
       [0013]    The present invention relates to portable cooling systems employing evaporative cooling. In particular, the present invention is related to a system and method for cooling livestock during various stages of transport or relocation. 
         [0014]    In one aspect, the invention relates to equipping one or more fans with cooling liquid propulsion devices or misters that deliver a quantity of cooling liquid or mist into the air propelled from the fan and onto the livestock. As cooling liquid collects on the livestock or birds and thereafter evaporates as a result of the air flow, the resulting convection rapidly and safely reduces the temperature while absorbing the thermal energy emanating from the birds. 
         [0015]    In another aspect, fans with cooling liquid propulsion devices are used to thoroughly soak the birds and keep them wet in anticipation of the air that will pass through the trailer during transport wherein convection keeps the birds cool while the transport vehicle is in motion. 
         [0016]    In a further aspect, the invention relates to a plurality of fans that run along a flat-bed trailer, wherein the fans are equipped with water misters for the convection cooling process. The fans on each end of the trailer are angled outward to extend the coverage area. The trailer is pulled next to the livestock transport trailer to keep the animals cool during the loading/unloading process, where the core temperature of the birds may peak. Since the fans on each end are angled, the cooling system trailer need not be pulled exactly along side and in-line with the transport trailer. 
         [0017]    In a further aspect, the invention relates to a single livestock transport trailer that includes a self-contained evaporative cooling mechanism with fans and cooling liquid misters. The fans in this aspect of the invention would be thinner relatively than those depicted in other aspects and would be along one side of a transport trailer extending along the edge in such a manner as to minimize the space taken up on the trailer. Additionally, this aspect of the invention would likely include cooling liquid storage tanks under the trailer. Moreover, the hydraulic power may be supplied via the transport truck that drives the trailer, allowing for additional space for the poultry cages to be loaded onto the transport trailer without the loss of space relative to conventional transport trailer. Finally, as an additional option, the fans may be allowed to stick out a width from the side of the trailer, generally not beyond the scope of the outside extended side minors of the truck, so has to avoid implication of most states&#39; wide-load specifications, but to allow greater storage space on the trailer itself. This system would allow for evaporative cooling during travel and truck break downs, in addition to the loading and unloading steps. A forklift could still be loaded on the rear of the trailer, but there would not likely be adequate space for a portable toilet absent the sacrifice of additional space for the poultry cages. 
         [0018]    A further aspect of the invention relates to a cooling system with one or more fans, an engine for powering the system, a hydraulic pump for driving power from the engine to the fans, a cooling liquid source, a cooling liquid pump, misters, and controls for running the system. 
         [0019]    Another aspect of the invention relates to self-contained livestock transport and cooling device that includes fans, hydraulic pump for powering the fans, cooling liquid source, cooling liquid pump, misters, and controls for running the system, all of which are powered by the engine of the transport vehicle or truck. 
         [0020]    A still further aspect of the invention relates to a fully mobile system, incorporating one or more fans, an engine for powering the system, a hydraulic pump for driving power from the engine to the fans, a cooling liquid source, a cooling liquid pump, misters, controls for running the system, a gate surrounding the back of the fans, a fold-down ladder that provides access to the portable toilet and maintenance area, and a maintenance access door that is equipped with a trip switch to be engaged when opened to stop the fans for safety reasons. 
         [0021]    A still further aspect of the invention relates to a fully mobile system, incorporating one or more fans, an engine for powering the system, a hydraulic pump for driving power from the engine to the fans, a cooling liquid source, a cooling liquid pump, misters, controls for running the system, and optionally including a canopy for covering the livestock transport vehicle to shield the livestock from direct sunlight. 
         [0022]    A still further aspect of one embodiment of the invention provides a strong sprayer piping system capable of withstanding the high wind velocity of the fans as the sprayer piping is placed on the face of the fan cage. Such placement avoids the potential damage or deterioration over time to the fan motor or blades as a result of the water exposure from the sprayers, foggers, or misters placed behind the fans. Likewise, the piping would ideally handle high pressure cooling liquid and accommodate both missing nozzles for evaporative cooling, fogger nozzles for the same but at a lighter liquid load, and sprayer (also referred to a “soaker nozzles”) nozzles for soaking the poultry such that the fluid continues the evaporative cooling process while the transport trailer is in transit. 
         [0023]    A still further aspect of one embodiment of the invention provides for a hydraulic system to avoid the problems associated with electric fan motors, but which also optionally includes quick disconnect couplers to disable any one fan separately for service or removal. Likewise, one embodiment of the system may include a multiple hydraulic control which operates each fan individually through one control manifold. 
         [0024]    A still further aspect of one embodiment of the invention provides a portable cooling system, comprising: a mobile carrier; at least one motive ambient gas driver generating in operation an ambient gas flow stream, wherein said at least one motive ambient gas driver is mounted on the carrier; a motor for driving the at least one motive ambient gas driver; a power source for driving the motor; and a liquid source arranged to supply liquid to an air stream generated in operation of said at least one motive ambient gas driver. 
         [0025]    A still further aspect of one embodiment of the invention provides a portable cooling system, comprising: a mobile carrier; at least one fan mounted on the carrier; a motor for driving the at least one fan; a power source for driving the motor; and a liquid source arranged to supply liquid to an air stream generated in operation of said fan. 
         [0026]    A still further aspect of one embodiment of the invention provides a method of transporting poultry comprising: providing a mobile cooling system mounted on a mobile carrier, the mobile cooling system comprising a motor for driving the at least one motive ambient gas driver; a power source for driving the motor; a liquid source arranged to supply liquid to an air stream generated in operation of said at least one motive ambient gas driver; and activating the mobile cooling system in proximity to the poultry. 
         [0027]    A still further aspect of one embodiment of the invention provides a method of reducing poultry loss incident to heat during transport, comprising: providing a mobile cooling system mounted on a mobile carrier, the mobile cooling system comprising a motor for driving the at least one motive ambient gas driver; a power source for driving the motor; a liquid source arranged to supply liquid to an air stream generated in operation of said at least one motive ambient gas driver; and activating the mobile cooling system during loading and unloading of said poultry. 
         [0028]    Other aspects, features and embodiments of the invention will be more fully apparent from the ensuing disclosure and appended claims. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0029]      FIG. 1  is a photograph of one embodiment of the portable cooling system viewed from the side upon which air and cooling liquid is propelled outward or towards and to the right of the viewer. 
           [0030]      FIG. 2  is a photograph of one embodiment of the portable cooling system at a front angled view. 
           [0031]      FIG. 3  is a photograph of one embodiment of the portable cooling system viewed from the side upon which air and cooling liquid is propelled directly toward the viewer. 
           [0032]      FIG. 4  is a photograph of one embodiment of the portable cooling system viewed from the rear. 
           [0033]      FIG. 5  is a photograph of one embodiment of the portable cooling system viewed from the rear and below the fans, revealing the cooling liquid supply piping. 
           [0034]      FIG. 6  is a photograph of one embodiment of the portable cooling system viewed from the back side from which air and cooling liquid is blown away from the viewer. 
           [0035]      FIG. 7  is another photograph of one embodiment of the portable cooling system viewed from the back side. 
           [0036]      FIG. 8  is a photograph of one embodiment of a fold-down ladder that provides access to the portable toilet and maintenance area. 
           [0037]      FIG. 9  is a photograph of one embodiment of the hydraulic storage tank and lines leading to the hydraulic control lever on the right. 
           [0038]      FIG. 10  is a photograph of one embodiment of the hydraulic control lever as depicted in  FIG. 9 . 
           [0039]      FIG. 11  is a photograph of one embodiment of the engine with throttle control and the engine control center. 
           [0040]      FIG. 12  is a photograph of one embodiment of the engine control center with various gauges and buttons. 
           [0041]      FIG. 13  is a photograph of one embodiment of the engine fuel tank and battery compartment. 
           [0042]      FIG. 14  is a photograph of one embodiment of the cooling liquid storage tank. 
           [0043]      FIG. 15  is a photograph of one embodiment of the cooling liquid pump. 
           [0044]      FIG. 16  is a photograph of one embodiment of the portable toilet and the hydraulic fan motor plumbing for powering the fans. 
           [0045]      FIG. 17  is a photograph of one embodiment of the hydraulic fan motor and hydraulic lines connected to the fan motor for powering the fans. 
           [0046]      FIG. 18  is a photograph of one embodiment of the folding ICC bumper that provides access for loading a forklift on the back of the trailer. 
           [0047]      FIG. 19  is a top-down schematic illustration of one embodiment of the portable cooling system. 
           [0048]      FIG. 20  is a back side schematic illustration of one embodiment of the portable cooling system. 
           [0049]      FIG. 21  is another top-down schematic illustration of one embodiment of the portable cooling system revealing the cooling liquid lines. 
           [0050]      FIGS. 22A-C  are schematic illustrations of various embodiment of the sprayer piping and nozzle placement of the portable cooling system. 
           [0051]      FIG. 23  is a schematic of a single hydraulic control which operates all fans with one control manifold. 
           [0052]      FIG. 24  is a schematic of a multiple hydraulic control which operates each fan individually through one control manifold. 
           [0053]      FIG. 25  is an electrical wiring schematic one embodiment which operates the system&#39;s engine maintenance and safety shut-off relays. 
           [0054]      FIGS. 26A-C  are schematics of the relays to stop the system or shut down the engine that runs the system. 
           [0055]      FIG. 27  is a schematic of the hydraulic lines, motors and controls of one embodiment of the present system. 
           [0056]      FIG. 28  is a schematic of the hydraulic fan motor and lines of the present system. 
           [0057]      FIG. 29  is a schematic drawing of another embodiment of the present system that employs sliding canopies to reduce thermal exposure to sunlight. 
       
    
    
     DETAILED DESCRIPTION 
       [0058]    The present invention relates to a portable cooling system employing evaporative cooling. In particular, the present invention relates to a system and method for safely cooling humans or animals and in particular, livestock during various stages of transport or relocation. 
         [0059]    The advantages and features of the invention are further illustrated with reference to the following examples, which are not to be construed as in any way limiting the scope of the invention but rather as illustrative of one or more embodiments of the invention in specific applications thereof. Referring in more detail to the figures, wherein reference numbers indicate like parts throughout each figure. 
         [0060]      FIG. 1  is a photograph of one embodiment of the portable cooling system  100  mounted on a cooling system trailer  101  with a forward  123  and rear  124  sections and viewed from the front side upon which air and cooling liquid is propelled outward or towards and to the right of the viewer in the general direction A with a breadth of flow covering at least the length of the cooling system trailer  101  from front  123  to back  124 , with the fan  102  closest to the front  123  angled forward and the fan  102  in the back  124  angled towards the rear. The angled fans create an even broader breadth of flow such that any transport trailer need not be parked directly beside the cooling system trailer  101 .  FIG. 1  reveals the front face of several fans  102  with the cooling liquid sprayer piping  121  on the face cage of each fan  102 . The piping  121  includes a series of nozzles  115  for delivering cooling liquid into the flow or air generated by the fans  102 . Each fan has a plurality of fan blades  122 . The piping  121  is supplied with cooling liquid, ideally water, by the cooling liquid supply lines  114 . 
         [0061]    A 48 or 53 foot flat bed or drop deck trailer may be used, although with some rural road restrictions, the 48 foot trailer may be more practical. Such a 48 foot or greater sized trailer is ideal for covering an equal length poultry transport trailer, but is benefitted by the expansive fan system in one embodiment that includes non-parallel end fans relative to the middle fans to provide broader coverage than parallel fans. Fans ideally may be facing the (left) driver&#39;s side (“front side”) of trailer for poultry loading areas but can be configured in different ways for other applications. Moreover, each component of the system  100  can be located anywhere on the trailer for the operator&#39;s convenience. The trailer  101  can be used to cool livestock on the farm, in barns, or in the loading areas. The trailer can also be used to cool large crowds of people such as outdoor concerts or water parks. The fan trailer can be configured in many different ways to accommodate a user&#39;s needs. 
         [0062]      FIG. 2  is a photograph of one embodiment of the portable cooling system at an angled view from the front side upon which air and cooling liquid is propelled outward and to the right of the viewer in the general direction A, revealing the front face of several fans  102  with the cooling liquid sprayer piping  121  on the face cage of each fan  102 . A truck  136  is connected to and transports the trailer  101  that supports the portable cooling system  100 . Note that the first fan  102  towards the front of the trailer  123  is angled more towards the viewer and the front of the trailer  123  to increase the coverage area of the fans and liquid. The rear fan  102  positioned at a similar but opposite facing angle towards the rear of the trailer  124  for the same reason. Both fans  102  in the front  123  and rear  124  are in non-parallel fashion relative to the remaining fans  102 . In a further embodiment, such end fans may be arranged to change such angles, wherein the fans are installed on pivotal mounts that may be mechanically, manually, or electronically controlled. Such change in direction of the end fans, or any other fans in various embodiments, allows for an adaptive coverage area depending upon the desires of the user. 
         [0063]      FIG. 3  is a photograph of one embodiment of the portable cooling system viewed from the front side upon which air and cooling liquid is propelled directly toward the viewer, revealing the front face of several fans  102  with the cooling liquid sprayer rings  121  on the face cage of each fan  102 . The cooling liquid supply lines  114  are also revealed in  FIG. 3 . The top of the portable toilet  108  is revealed behind the fans  102  near the rear of the trailer  124 . 
         [0064]      FIG. 4  is a photograph of one embodiment of the portable cooling system viewed from the rear of the trailer  124  upon which air and cooling liquid is propelled toward the left in direction A, revealing a portable toilet  108  and cooling liquid supply hose reel  109  that supplies cooling liquid to the system via supply line  113 . The hose reel  109  can refill the forward mounted or side mounted cooling liquid tanks  103  to insure long operational periods with minimal transportation of cooling liquid or to allow supply of cooling liquid at the location where the system is to be used. A portion of the cooling liquid supply lines  114  are also revealed below the fans  102 . Additionally, the bottom ICC bumper  126  folds in on each side to allow access for loading a forklift on the rear of the trailer  124  such as a Moffitt forklift. Note the piping inserts  153  to allow insertiong of the forklift forks. The inserts  153  are reinforced as shown in  FIG. 43 , where the dimensions are supplied for this embodiment in  FIG. 52 . 
         [0065]      FIG. 5  is a photograph of one embodiment of the portable cooling system viewed from the rear of the trailer  124  and below the fans  102 , revealing the cooling liquid supply piping  114 . The piping delivers cooling liquid to the cooling liquid sprayer piping  121  and out a series of nozzles  115 , wherein the flow of liquid is carried by the flow of air driven from the fans  102  to effectuate evaporative cooling. The piping ideally may be separately turned off or disconnected for each fan in case maintenance is required, or for any other reason desired to disable one or more fans separately from the group. 
         [0066]      FIG. 6  is a photograph of one embodiment of the portable cooling system viewed from the back side from which air and cooling liquid is blown away from the viewer, revealing the cooling liquid supply hose reel  109  and the back of one fan  102  viewed above the hose. 
         [0067]      FIG. 7  is a photograph of one embodiment of the portable cooling system viewed from the back side from which air and cooling liquid is blown away from the viewer, revealing from left to right, the first of several fans  102  viewed from the back, the sprayer piping  121 , the cooling liquid supply hose reel  109  towards the rear of the trailer  124 , the portable toilet  108 , a maintenance area entry gate  134  for access to the maintenance area and back of the fans  102 , a fold-down ladder  149  that provides access to the portable toilet  108  and maintenance area entry gate  134 , a hydraulic storage tank  107 , a hydraulic control lever  125 , a diesel engine  106  with throttle control  135 , an engine control center  127  with various gauges, a diesel fuel tank and battery housing  105 , an engine start button  132 , a cooling liquid holding tank  103  towards the front of the trailer  123 , and the truck  136  that is connected to and transports a trailer  101  that supports the portable cooling system  100 . Note that all the controls are within relative proximity to each other. 
         [0068]    On a system that has fans on a transport trailer, the controls for the system will likely be within the truck since the truck will power the system. Such a system could still have the capacity for loading a forklift on the rear, tanks below the trailer and the fans along one side of the trailer in a much thinner fashion, possibly extending the width of the trailer. A portable toilet would not likely fit on such a system. 
         [0069]      FIG. 8  is a photograph of one embodiment of the portable cooling system viewed from the side from which air and cooling liquid is blown away from the viewer, revealing the fold-down ladder  149  and maintenance gate  134 , wherein the maintenance gate  134  is equipped with a trip switch to stop the fans  102  when the gate  134  opened for safety reasons. 
         [0070]      FIG. 9  is a photograph of one embodiment of the portable cooling system viewed from the side from which air and cooling liquid is blown away from the viewer, revealing on the hydraulic fluid storage tank  107  with hydraulic lines  137  leading to the hydraulic control lever  125  and the hydraulic pump  117  that is attached to the engine  106 . 
         [0071]      FIG. 10  is a photograph of one embodiment of the portable cooling system viewed from the side from which air and cooling liquid is blown away from the viewer, revealing a closer view of the hydraulic control lever  125 , the hydraulic lines  137 . hydraulic pump  104 , and the engine  106 . 
         [0072]      FIG. 11  is a photograph of one embodiment of the portable cooling system viewed from the side from which air and cooling liquid is blown away from the viewer, revealing the diesel engine  106  with throttle control  135 , the hydraulic pump  117 , and on the right the engine control center  127  with various gauges. 
         [0073]      FIG. 12  is a photograph of one embodiment of the portable cooling system, revealing the engine control center  127  with various gauges and buttons, from top left to bottom right, the oil pressure gauge  128 , the engine operating hours gauge  129 , the engine temperature gauge  130 , the engine fuel gauge  131 , the engine start button  132 , and the power switch  133 . 
         [0074]      FIG. 13  is a photograph of one embodiment of the portable cooling system viewed from the side from which air and cooling liquid is blown away from the viewer, revealing the diesel fuel tank and battery housing  105 . 
         [0075]      FIG. 14  is a photograph of one embodiment of the portable cooling system viewed from the side from which air and cooling liquid is blown away from the viewer, revealing the cooling liquid storage tank  103 , the back of the fans  102 , sprayer piping  121 , and the truck  136  attached to the trailer  101  at the front  123 . 
         [0076]      FIG. 15  is a photograph of one embodiment of the portable cooling system, revealing the cooling liquid pump  104  for the supplying liquid to the nozzles  115  located throughout the cooling liquid sprayer piping  121  on the face cage of each fan by way of cooling liquid lines  114  from the tank  103  to the nozzles  115 . 
         [0077]      FIG. 16  is a photograph of one embodiment of the portable cooling system at a rear angled view between the back of the fans  102  and the portable toilet  108  on the right, revealing the hydraulic fan motor plumbing  137  for supplying hydraulic fluid under pressure to the fan motors  116  for powering the fans  102 . The hydraulic piping would ideally include quick disconnect couplers  148  for each fan&#39;s  102  hydraulic lines. The quick disconnect assures that fans could separately be disconnected if maintenance problems arose or for any other desired reason. Controls in one embodiment may be provided on the control center  127  or elsewhere for separately controlling each fan  102 . With separate controls for each fan, separate hydraulic or other power lines would ideally be provided. 
         [0078]      FIG. 17  is a photograph of one embodiment of the portable cooling system from the back of one fan  102 , revealing a close-up view of the hydraulic fan motor plumbing  137  connected to the fan motor  116  via quick disconnect couplers  148  for powering the fan according to one embodiment. 
         [0079]      FIG. 18  is a photograph of one embodiment of the portable cooling system from the rear  124  of the trailer  101 , revealing a close-up view of the folding ICC bumper  126  that provides access for loading a forklift on the back of the trailer also via the forklift fork tubing  153  on the rear of the trailer  124 . 
         [0080]      FIG. 19  is a top-down schematic illustration of one embodiment of the portable cooling system  100  mounted on a trailer  101  with a forward  123  and rear  124  sections.  FIG. 19  reveals several fans  102  with the cooling liquid sprayer piping  121  on the face cage of each fan  102  that propel air and cooling liquid in the general direction A where a breadth of flow covers at least the length of the trailer  101  (or greater with angled fans at the forward  123  and rear  124  sections). In one embodiment, the fans  102  proximate the forward  123  and rear  124  sections (or any other fans that are desired to be adjustable) may be mounted or arranged on swivel mounts to allow an operator to manually, mechanically, or electrically control movement and angle of such fans to adjust the coverage of such fluid generated therefrom. 
         [0081]    The piping  121  includes a series of nozzles  115  for delivering cooling liquid into the flow or air generated by the fans  102 . Also shown is the cooling liquid supply hose reel  109 , the portable toilet  108 , a hydraulic storage tank  107 , the engine  106 , the fuel tank and battery  105 , a cooling liquid holding tank  103  and cooling liquid pump  104 . The trailer is equipped with a portable restroom  108  to be used by farm workers and/or catch crews. 
         [0082]    A system of the type shown schematically in  FIG. 19  is employed where each fan  102  flows 48,000 CFM X 9 fans=432,000 Cubic feet of air per minute. Air velocity would ideally be above 8 mph at 20 feet distance from the trailer. The ambient temperature in the fan area will be lowered between 30 to 40 degrees. The on-board cooling liquid tank  103  can hold at least 325 gallons of tap water which will supply the misting system for at least five hours of operation. The hose reel  109  on the rear  124  allows for refill of the tank  103  from any standard water source. 
         [0083]    The hydraulic system operates at 1,800 psi under full load. The hydraulic piping and hoses are rated at 4,000 psi which will ensure long life of the hydraulic system with no plumbing problems. 
         [0084]      FIG. 20  is a back-side schematic illustration of one embodiment of the portable cooling system  100  mounted on a trailer  101  with a forward  123  and rear  124  sections.  FIG. 20  reveals the back of several fans  102 , the cooling liquid supply hose reel  109 , the portable toilet  108 , a hydraulic storage tank  107 , the engine  106 , the fuel tank and battery compartment  105 , the cooling liquid holding tank  103 , and two fire fans  110  for possibly putting out any engine fire or the like. 
         [0085]      FIG. 21  is another top-down schematic illustration of one embodiment of the portable cooling system  100  mounted on a trailer  101  revealing a cooling liquid supply line  113  from the cooling liquid supply hose reel  109  to the first of two cooling liquid holding tanks  103 , a quick fill connection  111  for filing one of the two tanks  103 , and a cooling liquid distribution line  114  from the cooling liquid pump  104  to the nozzles  115  on each fan  102 . The 3 or 4 inch quick fill connection  111  can be installed and used if cooling liquid supply is available, reducing the tank refill time dramatically. Alternatively, on farms with low water tables or even a broken water supply, trailers can be out fitted with a larger cooling liquid tank or tanks suitable for prolonged periods of operation. The trailer  101  pictured in  FIG. 21  shows the cooling liquid plumbing schematic which allows the rear mounted hose reel  109  to fill the forward mounted cooling liquid holding tanks 
         [0086]      FIGS. 22A-22C  show various patterns of the sprayer piping with nozzles. The pattern in  FIG. 22A  is described as a pipe design with relatively parallel sprayer piping  121 . The pattern in  FIG. 22B  is described as a star or finger design. The pattern in  FIG. 22C  is described as a ring design, and is the best mode of the present invention since the sprayer piping  121  is one continuous unit, does not require separate pieces, has few joint pieces in the piping, and provides a broad coverage area relative to the same shape of the fans  102  with nozzles  115  dispersed evenly. The water pump retrieves water from the holding tank  103  and pumps the water through piping  114  under pressure to the spray nozzles or fogger nozzles  115  which inject water into the fans air stream. 
         [0087]    The spay nozzles  115  can be configured in several different ways. The nozzles  115  may be positioned around the piping and can include both spray nozzles and mister nozzles. The spray nozzles are used when more water is needed such as soaking the animals. The mister or fogger nozzles are used when less water is needed but the evaporative cooling is still desired. Adjustable nozzles are also desired to vary the flow of cooling liquid with ease. 
         [0088]      FIG. 23  reveals the system  100  with the design and workings schematic of a single hydraulic control which operates all fans  102  with one control manifold  118 , utilizing high pressure lines  119  and low pressure lines  120  that pull hydraulic fluid from reservoir  107 , where the engine  106  drives power to the hydraulic pump  117 . 
         [0089]      FIG. 24  reveals the system  100  with the design and workings schematic of a multiple hydraulic control which operates each fan  102  individually through one control manifold  118  with a high pressure hydraulic lines  119  for each motor  116  of each fan  102 . 
         [0090]      FIG. 25  details the electrical wiring schematic one embodiment which operates the system  100 , includes a battery  139  which can be located in the same housing next to the fuel tank  105 , starter  141 , alternator and charging circuit  139 , a starter button  132 , ignition on/off switch  133 , and an injection pump circuit  140 . Optionally provided is a maintenance gate  134  with a safety kill switch circuit  142  and relay  143  to cut off power to the fans  102  via a hydraulic shut down switch  146  when the maintenance gate  134  is opened for safety purposes. The system  100  includes a fuel tank  105  that also may optionally include a fuel gauge  131  and an engine hour meter gauge  129 . Additionally, an oil pressure gauge  128  attached to a relay  144  and engine temperature gauge  130  attached to a relay  145  prevent engine damage from over heating or loss of oil pressure, wherein the two relays  144  and  145  each can be activated to shut down the system  100 . The power supply for the  12  cooling liquid pump if used instead of the hydraulic cooling liquid pump 
         [0091]      FIGS. 26A-26C  show the details of relays  144 ,  145  and  143 , respectively. Relay  144   FIG. 26  A and relay  145  in  FIG. 26B  are engine shut down relays, wherein if the oil pressure or temperature get out of an acceptable range, a relay for each will shut the engine  106  down. Relay  143  in  FIG. 26C  will shut down the hydraulic pump  117 , whereby the fans  102  and optionally the cooling liquid pump  104  are also shut down when the maintenance gate  134  is opened triggering the maintenance door kill switch  142  that is attached to the door relay  143 . 
         [0092]      FIG. 27  is a hydraulic schematic drawing for a single on/off hand control  125  which operates all fans  102  simultaneously. The drawing includes the hydraulic pump  117 , hand control valve  125 , motors  116 , fan speed control regulators  147 , all within the piping flow chart of  FIG. 27 . 
         [0093]      FIG. 28  is a schematic drawing of a hydraulic fan motor  116  that is powered by hydraulic fluid from the hydraulic pump  117  through high pressure lines  119 , connected via a quick disconnect hydraulic coupler  148  to the fan motor  116  by way of a fan speed flow control regulator  147 , whereby the hydraulic fluid is returned via a low pressure line  120  through another quick disconnect hydraulic coupler  148 . The quick disconnect couplers allow for removal, repair or replacement of the fans  102  and/or fan motors  116  when necessary. 
         [0094]      FIG. 29  is another embodiment of the present system that employs at least one sliding canopy  150  to reduce the thermal exposure to sunlight of the livestock cages  151  being loaded onto the transport trailer  153 . 
         [0095]    While the invention has been has been described herein in reference to specific aspects, features and illustrative embodiments of the invention, it will be appreciated that the utility of the invention is not thus limited, but rather extends to and encompasses numerous other variations, modifications and alternative embodiments, as will suggest themselves to those of ordinary skill in the field of the present invention, based on the disclosure herein. Correspondingly, the invention as hereinafter claimed is intended to be broadly construed and interpreted, as including all such variations, modifications and alternative embodiments, within its spirit and scope.