Abstract: An automated maintenance schedule generation method includes: receiving planning data for designing a modular plant comprising physical modules as received planning data; selecting digital modules, correlating to respective physical modules, from a database, depending on the received planning data as respective correlating physical modules, the digital modules including maintenance information of the respective correlating physical modules; associating the selected digital modules depending on the received planning data; determining an expected maintenance need including an expected maintenance issue and/or an expected maintenance issue date for the selected physical modules depending on the received maintenance information as a determined maintenance need; and generating a maintenance schedule for the modular plant depending on the determined maintenance need.

Abstract: A building panel is constructed of a corrugated material. The panel can be folded into a U-shaped configuration. Successive folded panels can be coupled together using complementary shaped corrugations to fix panels in position relative to each other. Shaped connectors can be used to connect building panels in one plane to building panels in another plane.

Abstract: A system and method for installing the system of sheathing panels having building information applied to the individual sheets of sheathing prior to installation. Application of the building information is performed by printing the information directly on each sheet to form a rasterbated image of the building plan. The rasterbated image is then assembled as the surface of a building to provide a building plan integrated into the surface of the building. The information provided by the building plan can include, but is not limited to, plumbing information, heating, ventilation, and air conditioning information, electrical information, and framing information, including but not limited to information regarding the composition of walls, and placement, size and configuration of windows and doors.

Abstract: A mast for a drilling machine is disclosed. The mast includes a frame assembly defining an inner volume to accommodate a drilling assembly of the drilling machine. The frame assembly includes a first beam, a second beam, a plurality of links, a plurality of reinforcement members, and a plate, that combinedly form a truss. The plate defines an opening to facilitate access to the inner volume of the frame assembly.

Abstract: A motorized garage extension connected to a garage and a driveway, the motorized garage extension including a plurality of walls connected to the garage to move from retracted against the garage in a first position to at least partially extended away from the garage in a second position, and move from extended away from the garage in the second position to retracted against the garage in the first position, a plurality of wall receiving tracks disposed on at least a portion of the driveway, each of the plurality of wall receiving tracks to move of at least one of the plurality of walls in response to movement of the plurality of wall receiving tracks, and a roof unit connected to at least a portion of the plurality of walls to cover at least one of the plurality of walls, the plurality of wall receiving tracks, and the driveway in an extended position, and expose at least one of the plurality of walls, the plurality of wall receiving tracks, and the driveway in a retracted position.

Abstract: There is provided a crane including a main body, a tower derrickably supported by the main body, a jib derrickably supported by the tower, an assist member that assist the jib to move along a ground, and a determination unit that determines whether or not the jib is stopped when the tower is lowered in a lowering work state where the jib is assisted by the assist member.

Abstract: A hopper-in-frame for transporting granular proppant material, such as oil well sands subjected to fracturing, having a top loading through a hatch in the roof and lateral gravity discharge opening at the level of the hopper floor and not below the hopper through a lower side discharge opening where the load asymmetry is compensated for by the inclusion of an asymmetric roof that includes at least a portion of the roof asymmetrically lowered, such as a sloping roof or sloping to the side of the wall of download. The hopper-in-frame is supported and delimited by a frame that in turn is compatible to be incorporated in intermodal cargo containers.

Abstract: A modular building structure that utilizes a standard, unmodified intermodal shipping container both for transport of the structural components and as an integral element of the method of construction. A modular structure kit is enclosed in the shipping container, which can be transported using all means that are standard for ISO containers. Using the preferred method of construction, the shipping container can be situated without heavy equipment. Once situated, the shipping container provides the primary support for a permanent elevated structure composed of unique components, assembled using conventional building techniques without the necessary use of heavy or specialized equipment.

Abstract: A vehicle rack includes a cargo shelf, the cargo shelf including two beams and two fixing rods; four supporting frames, each beam being provided with two supporting frames that are movable along the beam, the two fixing rods being secured between two corresponding supporting frames on the two beams, a U-shaped plug interface being formed at the top of each supporting frame; a mobile frame that is movable along the beams and is U-shaped, the mobile frame including a horizontal rod and two vertical rods, a U-shaped plug interface I being formed at the top of each vertical rod; six connectors, each connector being provided with a clamping interface that opens through at bottom of the connector so that the connector can clamp the beam from top and then be inserted into the U-shaped plug interface or the U-shaped plug interface I; and six bolts.

Abstract: A carriable and modular cabin is provided with a parallelepipedal body creating a diaphanous space. Right bulkhead and left bulkhead separate the body from respective right and left side compartments. Other cabins can be stacked through the use of anchorages. Two tanks of water are provided including a tank of clean water possessing a submerged pump and a water entrance and a water exit. The second tank of waste water also possesses a submerged pump. The washbasin WC and shower, are located on the inner wall of the body. In the said bulkhead the clean water comes through a duct and is channeled towards the sanitary elements. The bulkhead includes an air conditioning compressor, water heater, and an inverter connected to one or more solar panels. The covers are provided with ventilation grids.

Abstract: The modular anti-ballistic shelter system includes two end units and, optionally, additional middle units for a wider structure. End and middle units may also stack atop each other for multi-story structures. Each unit is configured to comply with both ISO standards for size and weight, and with the U.S. Department of State Certification Standard for Forced Entry and Ballistic Resistance of Structural Systems. Each exterior wall of each end unit and each middle unit is reinforced with wall studs that penetrate the unit's structural framework of beams and frames. Even though these wall studs are welded into place, penetration of the wall studs into the beams and frames ensures acceptable blast, ballistic, and forced entry resistance even if the welds are flawed.

Abstract: An example mobile oilfield tool service center includes one or more intermodal containers, each intermodal container including a base, opposing sidewalls, opposing end walls, and a roof, and each intermodal container exhibiting a length, a width, and a height that are each compliant with a global containerized intermodal freight transport system. One or more service components are housed within the one or more intermodal containers for subjecting an oilfield tool to at least one process that repairs or rehabilitates the oilfield tool. A power source can be communicably coupled to the one or more intermodal containers to operate the one or more service components.

Abstract: A formwork stud system includes a plurality of studs, a top channel, a bottom channel and a plurality of horizontal and vertical rebars. At least one of the plurality of studs is a formwork stud. The formwork stud includes a web and a pair of flanges. The web has opposed side portions extending from the top of the formwork stud to the bottom of the formwork stud and a plurality of lateral spaced apart connectors extending between the opposed side portions. The opposed side portions and the lateral spaced apart connectors define a plurality of spaced apart holes. The holes are configured to allow concrete to flow therethrough. The pair of flanges extend generally orthogonally from the opposed side portions of the web.

Abstract: The invention relates to a storage product carrier (10) for a storage rack (100) that includes a plurality of support beams disposed one on top of the other at a distance from one another, the support beams being arranged in pairs on opposite side walls of the storage rack (100) and supporting the storage product carrier (10), wherein the storage product carrier (10) comprises a base plate (30) for storing a rollable storage product container (20) provided with at least one wheel (22), wherein the base plate (30) has at least one depression (40) for receiving the wheel (22) of the storage product container (20). The invention further relates to a storage rack with such a storage product carrier.

Abstract: A structural support device comprising a receiver which is configured to receive and to connect a framed structure, a weight bearing member to which the receiver is attached, and a vertical support member which is attached to the weight bearing member and which may be capable of adjusting the overall height of the structural support device. The structural support device may further comprise a footing which assists in securing the structural support device to the ground and/or to a ground support.

Abstract: The invention relates to a paint mixing room (1) comprising a base portion (2), four walls (3), a top portion (4) and at least one door (5) located in one the walls (3); at least one shelf (6), particularly for water-borne products, solvent-borne products and/or color tools; at least one workbench (7); a color station (8) comprising e.g. a personal computer, a spectrophotometer, and a barcode reader; a connector for an electrical power supply; and a ventilation system (11); wherein the paint mixing room (1) is portable.

Abstract: The invention is about a supporting framework, having nodes and at least one framework component. The framework components are either panels or diagonal braces or a combination of them. At least one node has a connector and at least two bars. At least one connector has a plurality of bar receiving members that are located in a corresponding plurality of faces of an imaginary polyhedron and at least one bar has a first end, fixed to the one of the bar receiving members of the connector of a first node and a second end, fixed to the corresponding bar receiving member of the connector of another node. The node further comprise a holder for the diagonal braces or panels.

Abstract: A mobile aboveground safety shelter to provide protection from dangerous events such as storms, tornadoes and similar occurrences is provided. The shelter includes a pallet and a room connected to the pallet. The pallet has a generally planer base and a wall extending upward from the base. The wall and base form a cavity suitable for containing a weighting material.

Abstract: The various processes of a plant are segmented into separate process blocks that are connected to one another using fluid conduits or electrical connections. Each process block is specialized to perform specific tasks in an assembly line manner to achieve an overall goal. For example, multiple distillation process blocks could be daisy-chained to create fuel from crude oil. Each process block is generally small enough to be mounted on a truck or a flatbed for easy transport, allowing for an assembly line of process blocks to be transported anywhere in the world with ease.

Abstract: A prefabricated, transportable, ADA compliant, temporary addition, providing ADA accessible bathing, hygiene, and optional laundry facilities to the disabled occupants, eliminating the need to negotiate stairs to access a second floor bath or basement laundry. The addition is designed to be transported, lifted, connected and disconnected multiple times. The addition contains a walk-in shower with grab bars, ADA sink and sink base, tilt mirror, raised toilet with grab bars, egress door, light, heating unit, and exhaust fan. The addition is supported on a foundation of piers and attached to a ground floor room of an existing home by way of a connecting collar, minimizing the surface area connection to the house. The addition is pre-plumbed and wired with plumbing and electrical access points at the base of the addition that are connected to the existing home's utilities through a hole into the basement.

Abstract: A wheel assembly for use with a telescoping frame, the wheel assembly comprising a top plate and a bottom plate through which a pin extends. The telescoping frame comprises at least one skid that extends longitudinally to term an underside of the non-telescoping frame. A loop member is attached to a top end of the skid. The wheel assembly slides onto the loop member with the bottom plate resting on top of the loop member. When the wheel assembly is installed, the pin is situated inside of a boot end of the loop member to prevent the wheel assembly from moving forward on the loop member.

Abstract: A support structure of the type used as a truss for entertainment productions is disclosed. The support structure includes a plurality of frame segments arranged to form a truss and an implement bracket attached to the truss, the implement bracket connecting an implement to the truss. The implement bracket deploys from a stowed position within a space defined by the truss through a window of the truss formed by truss frame segments to a working position outside the space defined by the truss.

Abstract: An air bearing transport apparatus has a support structure coupled to a plurality of traction units. The traction units are tracks that are rotationally coupled to the support structure and independently steerable. Each traction unit is coupled to the support structure by a linear actuator that acts as a normal force applicator to prevent slippage. A plurality of thrusters in a lower portion of the support structure provides a gas flow substantially perpendicular to a support surface of the support structure to provide an upward force on the support structure. The air bearing transport apparatus may be used with a portable modular surface comprising interlocking tiles.

Abstract: A mobile service station includes a deployable structure configurable between a first closed configuration wherein the structure is a container having two side walls, a roof, a floor, a front wall and a rear wall, and a second deployed configuration as an operating service station. The station includes service station accessories mounted on at least one of the side walls. At least one side wall of the structure is foldable between a first vertical position, wherein the side wall acts as a vertical side wall for the closed configuration, and a second position wherein the side wall acts as additional floor space for the structure in the deployed configuration. The service station is adaptable for use as a high-end food stand, among other applications. A method configures the mobile service station.

Abstract: An assembly system for modular building units having a floor and a plurality of walls is provided. The assembly system includes a floor platform, a plurality of wall platforms, and a plurality of hinge assemblies. Each of the plurality of hinge assemblies may be rotatable to at least a first position and a second position when attached to the floor and the one of the plurality of walls. In the first position, the walls and the floor are generally parallel while in the second position the wall and the floor are generally perpendicular. Methods of use are also provided, in which, during use, the hinge assembly of the system may be rotated from the first position to the second position at least in part by moving the walls in an upwards direction relative to the floor.

Abstract: The present invention is a mobile performance stage mounted on a hydraulic lift truck for enabling a quick and easy performance setup in a location that does not already have a dedicated stage. The lift truck supports a hydraulic lift mechanism, which supports the stage and enables the stage to be elevated to a desired height. The stage is a rectangular cuboid resembling a cargo hold of most cargo trucks, with doors at each of the four lateral sides that open to reveal a performance area. The perimeter of the stage is outlined by short sidewalls except for the side of the stage between the performers and the audience. The stage comprises trusses outlining the vertical sides and roof of the stage for mounting lighting and other performance equipment. The stage also comprises a digital display, a safety railing, and a utility platform.

Abstract: A modular assembly capable of converting from a shipping container configuration into a building unit, and from a building unit into a shipping container configuration. From the shipping container configuration, a plurality of frame panels and unit panels moveably connected to a frame of the modular assembly are selectively positioned to form the floors, walls, and ceilings of the building unit configuration thereby forming a living and/or commercial structure complete with electrical, water and sewage connections. The assembly may include an automated erection system, which may include a system of electric motors, gears, pulleys, cables, automated mechanical arms and electronic controls, located within the container structure of the modular assembly, and which interact with a plurality of frame panels and unit panels to deploy and retract the plurality of frame panels and unit panels for constructing the shipping container configuration and building unit configuration.

Abstract: A modular food storage apparatus for storing dry goods and/or perishable goods. The food storage apparatus may be fixed or mobile. The apparatus includes a scalable frame. A plurality of scalable side panels are securely affixed to the frame. A plurality of scalable roofing panels are securely affixed to the frame and to the side panels. The food storage apparatus may be stationary and affixed to a concrete foundation. The apparatus may be modified with monitoring devices and venting devices for storage of dry goods. The apparatus may be modified for storage of perishable goods using refrigeration or a controlled atmosphere environment.

Abstract: The present invention relates to a method for producing a tower segment of a concrete tower of a wind energy installation, comprising the steps: providing a segment mold having at least one formwork for defining a mold of the tower segment that is to be produced and for filling with concrete; filling the segment mold with concrete in order to form the tower segment by the subsequent hardening of the concrete; measuring the tower segment thus hardened for creating a three-dimensional, virtual actual model of said tower segment; producing said three-dimensional actual model; comparing the three-dimensional actual model with a predefined mold, in particular a stored three-dimensional, virtual target model; and determining a deviation between both virtual models and changing the segment mold, in particular changing the at least one formwork when the deviation exceeds a first predefined threshold value.

Abstract: When constructing a unit building having a middle scale or more such as especially an apartment house, a long and large size building unit capable of reducing construction period while increasing construction efficiency and being economically provided can be achieved. Detachable temporary reinforcing members 2 are provided on both of the short side surfaces of the building unit body 1A, respectively. The temporary reinforcing member 2 has lower end portion on which a projecting portion 3 is downwardly projected.

Abstract: Apparatus and methodology for providing electronic access control are disclosed. In an exemplary configuration, a retrofittable electronic lock can be used to provide secure storage to an enclosure. A user interface and LCD visual display can be provided to permit convenient adjustment of system operational parameters. In certain embodiments, the electronic access control system includes master-slave control capabilities. In other embodiments, the electronic access control system includes inventory management capability. In still other embodiments, apparatus and methodologies provide the secure storage of the enclosure when the enclosure is being moved or otherwise transported from one location to another location. Various alternative arrangements may provide various alert features, as well as battery features which facilitate rapid replacement and/or reconfiguration.

Abstract: The invention relates to a paint mixing room (1) comprising a base portion (2), four walls (3), a top portion (4) and at least one door (5) located in one the walls (3); at least one shelf (6), particularly for water-borne products, solvent-borne products and/or color tools; at least one workbench (7); a color station (8) comprising e.g. a personal computer, a spectrophotometer, and a barcode reader; a connector for an electrical power supply; and a ventilation system (11); wherein the paint mixing room (1) is portable.

Abstract: The invention is an expandable and contractible, transforming habitable structure, ISO-certified container designed as a single unit with all primary components contained within, to be easily transported by water, air or land (truck and rail) in stacked configurations. The unit of fold-down floors, easy swing-out interior and exterior walls, and an inter-locking roof system, rapidly expands using: specially designed and engineered “box hinges” and “pivot pins.” When expanded, the unit is structurally secured via especially designed and engineered “spring bolts” requiring little construction knowledge or tools, into HUD-approved, habitable, family friendly structure for emergency and temporary individual, or single-family use, and can be combined in multiples for various field functional applications.

Abstract: A system and methodology facilitates the handling of oilfield material. The oilfield material is stored in at least one silo which enables use of gravity to feed the oilfield material to a blender or other suitable equipment. Each modular silo is transportable and may be engaged with a support structure via a pivot connection. Once engaged, the silo is pivoted to a raised, upright position on the support structure. The oilfield material is then moved to an interior of the silo, and gravity may be used to feed the oilfield material to a blender or other equipment in a controlled manner.

Abstract: A transportable, transformable structure utilizing a tower shuttle apparatus for converting the structure from a closed, transportable unit to an open, stationary unit. The tower shuttle includes a connection post, including a socket joint, connected to a shuttle cart on casters. The socket joint is capable of receiving a ball connection at the base of a structural tower affixed to the transformable structure. This connection allows a single operator to fully assemble a mobile performance stage or other transportable, transformable structure with ease and with no damage to the stage deck. The tower shuttle allows the towers to be moved into position no matter the required direction.

Abstract: Electrical power is generated from solar and wind sources thus reducing the need for fuel oil at military forward operating bases and main operating bases. A wind turbine and a solar cell panel are connected to a battery bank. Both the turbine and the solar cells are stored in two standard military shipping containers. When transported to the desired location, these sub-systems are easily set up for operation. The entire apparatus may be disassembled for re-transport and use at another location. Necessary container modifications to connect the system for use are made in such a way as not to alter the container's outside envelope, thus enabling normal transport of the container without damage to the modifications. Each of the solar cells have discs attached so that the solar panel can be assembled in the field by sliding each disc into a mounting channel.

Abstract: Mobile drilling rigs and methods for moving drilling rigs are disclosed which, in one aspect, include wheel assemblies connected to a rig which wheel assemblies are selectively movable from a rig drilling position to a rig movement position. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Abstract: Embodiments of prefabricated compound masonry units in lieu of build site-constructed elements are provided, as well as methods of producing the same. One embodiment comprises a first course comprising hollow blocks laid end to end with adjacent ends adhered with mortar, the hollow blocks positioned such that the first course has a hollow core; at least one channel formed in a top surface of the first course, the channel having a length; and provisional reinforcement provided along at least a portion of the length of the channel and held within the channel with a bonding material different from the mortar. The provisional reinforcement provides tensile strength to the first course for transportation and handling of the first course from a fabrication location to a build location where the first course is configured to receive permanent structural masonry reinforcement in the hollow core at the build location.

Abstract: A mobile multi-functional shelter unit, for use as a general working area or for storing and maintaining heavy machinery. The mobile multi-functional shelter unit includes a central structure that has a deployed state and a non-deployed state as well as means for translating from the deployed state to the non-deployed state. The central structure has a base section, a central floor mounted on top of the base section, track means for raising a vehicle from a ground surface onto and off of the central floor. The central structure supports a raisable roof assembly and a lateral pullout assembly.

Abstract: A system includes a portable transformer repair station that includes a portable building. The portable building includes a framework, a roof, and walls having a disassembled building configuration and an assembled building configuration. The portable building is configured to be transported in the disassembled building configuration. The portable building is configured to enclose a transformer repair space in the assembled building configuration. The portable transformer repair station also includes a portable floor having a disassembled floor configuration and an assembled floor configuration. The portable floor is configured to be transported in the disassembled floor configuration. The portable floor is configured to be disposed within the portable building in the assembled floor configuration. The portable transformer repair station also includes a portable oven configured to be disposed within the portable building.

Abstract: The present invention is a mobile performance stage mounted on a hydraulic lift truck for enabling a quick and easy performance setup in a location that does not already have a dedicated stage. The lift truck supports a hydraulic lift mechanism, which supports the stage and enables the stage to be elevated to a desired height. The stage is a rectangular cuboid resembling a cargo hold of most cargo trucks, with doors at each of the four lateral sides that open to reveal a performance area. The perimeter of the stage is outlined by short sidewalls except for the side of the stage between the performers and the audience. The stage comprises trusses outlining the vertical sides and roof of the stage for mounting lighting and other performance equipment. The stage also comprises a digital display, a safety railing, and a utility platform.

Abstract: A blind structure with a base, a plurality of rails, a plurality of posts supporting the rails and a skidable member coupled to the base; wherein the skidable member supports the base above the ground. In certain configurations the plurality of posts includes retention means for a plurality of wire mesh sheets that form the walls of the blind structure. In further configurations, at least one wall of the blind structure comprises an automatically closing door.

Abstract: A Rig (1) for drilling or maintaining oil wells includes a base structure (2) which is provided with a support platform (3) on the ground and a raised work platform (5). A deck (6) is co-planar to and integral with the support platform (3) and is suitable for housing a trailer (7). A telescopic antenna (8) is provided with two fixing eyelets (9) which are arranged at the lower end of the telescopic antenna (8) in order to be hinged to the work platform (5). A lifting device (10) is suitable for lifting the telescopic antenna (8) from a transport position, in which it reposes on a transporter (7) with the two fixing eyelets (9) at a lower level than the level of the work platform (5), to a working position, in which it is vertically arranged on the work platform (5) with the fixing eyelets (9) hinged to the work platform (5).

Abstract: A portable storage structure comprising a front panel, a rear panel, a pair of side walls, a roof and a base which surround an inner cavity to store a plurality of items. The portable storage structure further includes a set of grooves extending over the roof and down the pair of side walls, where the set of grooves accept a set of straps to anchor the portable storage structure to the ground; a set of anchor points within the base, where the set of anchor points secure the base to the ground; and a set of handles, where the set of handles enable a user to lift and carry the portable storage structure.

Abstract: Disclosed is a foldable transportable structure with a three dimensional rectangular shed roof shape having improved component and structural properties, and improved shipping and deployment capabilities. The integrated unique geometric folding pattern means provides enhanced folding accuracy and correct placement of interactive panels during collapse or assembly of the structure, and also greatly increases the flexibility for multiple unit combinations and component materials selection. The folding transportable structure provides a strong, safe, insulated weatherproof structure with a quick setup time, and requires NO tools or separate loose components for assembly.

Abstract: Prefabricated foldable building units are described that have one or more of the following advantages. They are more easily prefabricated, more easily transported to building sites without requiring special permits, unloadable and unfoldable at the building sites without using cranes (they can be unloaded using ground-level lifting rigs and unfolded using, for example, a cable mechanism), allow precise and fast completion at the building site, and allow significant reduction in the scope of work to be completed on-site, where costs and scheduling are far less manageable. Further, methods for unloading and unfolding foldable building units are described that obviate the need for one or more cranes that can be expensive and project-complicating, thereby opening up a significant percentage of building sites for placement of prefabricated foldable building units.

Abstract: A method and system for moving a large temporary building from a first location to a second location, while the building remains erect, are disclosed. The invention is particularly suited for moving such a building during the remediation of a contaminated waste site.

Abstract: The present invention discloses a high-capacity drilling rig system that includes novel design features that alone and more particularly in combination facilitate a fast rig-up and rig-down with a single set of raising cylinders and maintains transportability features. In particular, a transport trailer is disclosed having a first support member and a drive member which align the lower mast portion with inclined rig floor ramps and translate the lower mast legs up the ramps and into alignment for connection. A pair of wing brackets is pivotally deployed from within the lower mast width for connection to the raising cylinder for raising the mast from a horizontal position into a vertical position. A cantilever is pivotally deployed from beneath the rig floor to a position above it for connection to the raising cylinder for raising the substructure from a collapsed position into the erect position.

Abstract: A portable dwelling for use on the ground is disclosed having an enclosure with an interior space so dimensioned to receive an adult human being in a reclined or laying position and in an upright sitting position within the interior space. The enclosure has a plurality of surfaces between the interior space and an exterior space capable of maintaining dryness of the interior space in the event of a rainfall. Wheels are attached to the enclosure to facilitate movement of the enclosure along the ground. The enclosure has a mass capable of being moved along the ground via the wheels by the single adult human being, and has an exterior profile so dimensioned to allow the enclosure to be moved along a sidewalk of a city without completely obstructing a navigable portion of the sidewalk.

Abstract: Work crews temporarily operating in remote areas can be subject to dangers such as tornados, hurricanes and explosive blast waves. A re-deployable mobile aboveground protective shelter suitable for use in such environments utilizes retractable stabilizing arms and/or structures that leverage air pressure differential to resist uplift, overturning and sliding. Because the protective shelter does not rely exclusively upon excessive weight to counter wind forces, the protective shelter can be quickly, easily and inexpensively redeployed to new sites.