Abstract: Mats and panels of mats and methods of making the same are described. The panels include a first portion defined by a first material and a second portion defined by a second material. The first material and the second material have at least one of different compositions and different material properties. The methods include depositing a first material into a mold of a panel, depositing a second material into the mold of the panel after deposition of the first material, and applying at least one of pressure and heat to the mold of the panel to form a panel having the first material and the second material having at least one different compositions and different material properties.

Abstract: Disclosed are a guiderail of an underslung robot, an underslung robot and an operating system thereof. The guiderail of an underslung robot includes: a main guiderail, suspended in the air by a support frame; and an auxiliary guiderail, communicating with the main guiderail and suspended in the air by a support frame. An intersection of the main guiderail and the auxiliary guiderail is provided with a gap through which a traveling underslung robot can pass. The guiderail further includes path indicators mounted on the main guiderail and the auxiliary guiderail. An underslung robot, comprising: wheels for bearing the underslung robot, wherein at least one of the wheels is a power wheel; and two booms, wherein the top of the booms is connected to the wheels, the bottom of the booms is connected to a frame of the underslung robot.

Abstract: A resilient platform assembly has a playing deck with horizontally disposed deck panels. Each deck panel has a pair of foot flanges on the bottom of the deck panels. Receiving shoes are attached to the deck panels and configured to receive the foot flanges of the deck panels. A transverse member, perpendicular to the horizontally disposed deck panels, includes a plurality of notches. Each notch is cut in the transverse member in a predetermined spacing pattern. The receiving shoes are installed in the notches and the deck panels are attached to the transverse member through the receiving shoes. Resilient mounts connect the transverse member to a support assembly and allow relative motion between the transverse member and the support assembly.

Abstract: A movable dasher board system optimizes user safety in a hockey rink or similar arena. A bottom structure, provided by a sliding bottom surface or roller assembly, has low friction characteristics, typically a ?s of 0.05 or less with respect to ice if a sliding surface, or if roller bearings an effective coefficient of rolling friction 0.04 or less. A dasher board assembly is operatively connected to and extends upwardly from the bottom structure. Biasing and impact force absorbing devices (such as pneumatic or hydraulic or spring-encasing telescoping tubes, or foam, gel, or compression springs) bias the bottom structure and dasher board assembly to a desired position and absorb the impact of a human hitting the dasher board assembly to minimize the possibility of injury to the human. The system may be installed in a pre-existing rink or other arena.

Abstract: The present disclosure relates to a modular mat system. More particularly, the disclosure is directed to a modular mat system with that may be built out using common pieces of mats. Specifically, a modular mat system with a mat piece with a top plate with inserts, a bottom plate with a plurality of tabs and recesses operative to engage with further mat pieces to build a mat system is discussed. The modular mat system is operative to remove water and other detritus from shoes of a user or other such platform moving across the mat system and feed it to a perimeter drain below the system.

Abstract: A method and system for providing an artificial turf edge. In one embodiment, the system includes: a first raised border piece having a first main wall, a first bottom flange extending outwardly from a bottom portion of the first main wall at a first predetermined angle, and a first top flange extending outwardly from a top portion of the first main wall at a second predetermined angle, wherein the first bottom flange and the first top flange extend outwardly from the first main wall such that they are substantially parallel to one another, and wherein top surfaces of the first main wall, the first bottom flange and the first top flange are configured to be coupled to a piece of artificial turf so as to simulate an edge of a real grass lawn.

Abstract: Foam pads and method for making foam pads for use under an activity surface which meet or exceed G-max and HIC criteria under ASTM F1292-17 for playground equipment at heights of at least 9 to 12 feet and/or wherein the thickness loss of such pads at approximately one hour after removal of a 75 lb./in.2 load applied to the pad at 25% deflection for one hour pursuant to ASTM D3575-08 Suffix B is less than 7%.

Abstract: An athletic play surface having a moisture-resistant substrate layer located on top of a base surface. A woven scrim layer is positioned on top of and adhered to the substrate layer. A plurality of open cells extend through the scrim layer. An encapsulation layer is formed using a flowable curable material that is poured over the scrim layer and that hardens. The curable material passes through the open cells of the scrim layer, contacts the base surface, and then substantially fills the plurality of open cells of the scrim layer. A portion of the encapsulation layer extends beyond a top of the scrim layer to a height H. A decorative layer, such as paint and court lines, may be applied on top of the encapsulation layer.

Abstract: A movable dasher board system optimizes user safety in a hockey rink or similar arena. A bottom structure, provided by a sliding bottom surface or roller assembly, has low friction characteristics, typically a ?s of 0.05 or less with respect to ice if a sliding surface, or if roller bearings an effective coefficient of rolling friction 0.04 or less. A dasher board assembly is operatively connected to and extends upwardly from the bottom structure. Biasing and impact force absorbing devices (such as pneumatic or hydraulic or spring-encasing telescoping tubes, or foam, gel, or compression springs) bias the bottom structure and dasher board assembly to a desired position and absorb the impact of a human hitting the dasher board assembly to minimize the possibility of injury to the human. The system may be installed in a pre-existing rink or other arena.

Abstract: An edge stabilization assembly for inclined surfaces having a synthetic tuft assembly; a water-permeable polymer mesh connected on one side of the synthetic tuft assembly, and a tuft-free non-permeable woven polymer mat connected on the other side of the synthetic tuft assembly, and a plurality of fasteners.

Abstract: Various embodiments for a panel that may be combined with other similar panels to form a padding layer of an athletic field, or other surface, are disclosed. The panel for use in a padding layer of a panel system includes a top side having a center configured to support a top layer, the top side having a surface that slopes downwards from the center of the top side to edges of the panel, where the top side comprises top-side projections having a height varied from other ones of the top-side projections. The panel includes a bottom side having a plurality of bottom-side projections and a drainage hole that fluidly couples top-side projections with bottom-side projections.

Abstract: An artificial turf system defining a playing area comprises an artificial turf layer with an air distribution layer located beneath the turf layer, by which air can be distributed throughout the playing area. The air distribution layer is closed at edge regions to define a periphery of the playing area and an air supply is in fluid communication with the air distribution layer to provide a flow of air. A flow regulating layer is located between the air distribution layer and the turf layer, the flow regulating layer being provided with a plurality of openings arranged to allow permeation of air through the turf layer within the playing area. The proposed system allows air to be distributed uniformly over the whole of the playing area for cooling of the turf layer.

Abstract: An enclosed disc-golf court (10) with multiple holes (24). Each hole has a disc throwing lane (32) between a tee-off area (26) and a target basket (30). Boundary walls (36) on each side of the lane extend from a floor (14) to or near a roof (16). At least one hole has an obstacle (52A-M) partially blocking the lane. A player attempts to manually throw a disc (28) through an unblocked area (56, 60) in or beside the obstacle to hit the target basket. At least one target basket may have a sheath (62) that blocks entry of the disc except through a disc-access hole (66) in the sheath. A player can try repeatedly from where the disc lands after each throw until it enters the target basket up to a maximum number of tries per hole. The lowest score among multiple players wins a round.

Abstract: A shipping container for shipping thermally active materials includes a plurality of structural panels that define a container interior, and are configured for receiving the thermally active materials. The container also includes an exterior disposed adjacent to an environment in which the shipping container is disposed. A thermal barrier member is placeable between the thermally active materials and the environment in which the container is placed. The thermal barrier includes a thermal barrier interior panel and a thermal barrier external panel defining a heat absorbing material receiving cavity. A flowable polymer based heat absorbing material is disposed within the heat absorbing material receiving cavity. The thermal barrier is configured to substantially surround the thermally active materials to reduce the passage of thermal energy between the thermally active materials and the environment in which the shipping container is disposed.

Abstract: A multi-layered decorative panel comprises a digitally printed rigid panel including a digitally printed image digitally printed onto a rigid panel and at least one other rigid panel. At least one of the rigid panels is transparent with a solid adhesive layer adapted to bond the digitally printed rigid panel and the other rigid panel together. The digitally printed image faces the solid adhesive layer, and the solid adhesive layer is composed of a cured adhesive resin that is liquid at a temperature of between 20° C. and 25° C. and when being applied.

Abstract: Method for making a synthetic turf comprising laying a turf (1) consisting of a mat (2) on which a plurality of blades (3, 3a, 3b, 3c) of synthetic material is woven. An infill material (18) is obtained using the granular and fibrous part (17) of a loose product based on ground coconut, alone or with addition of other material such as rubber in granules or sand or other loose vegetable material such as cork. The raw material based on coconut, having a heterogeneous granulometry set between about 500 micron and several mm, is obtained loading a loose product based on ground coconut by a hopper on a conveyor belt for being fed in a sieve, for example a rotating screen that separates the powder part from the granular and fibrous part. In particular, the powder part of the raw material, is gathered on a conveyor belt and from here sent to a storage reservoir.

Abstract: The invention relates to the safety of airport runways. The invention provides a side bather preventing foreign object debris (FOD) from entering a runway and taxiway and endangering aircraft. The barrier having ground attachment means and being constructed to collapse if the landing wheels of an aircraft impact the barrier and thus allow the aircraft to safely continue landing/takeoff/taxiing.

Abstract: A half-pipe trampoline is comprised of a horizontal trampoline runway with inclined trampoline beds angled approximately 45-53 degrees relative to the surface of the horizontal trampoline runway. The inclined trampoline beds are positioned all along the length of the horizontal trampoline runway, thus creating a three-dimensional corridor or track of flexible trampoline surface for the participants. The inclined trampoline beds are connected directly to the horizontal trampoline runway, rather than to a rigid frame. To accomplish this, rigid frames are positioned around the periphery of the trampoline surfaces rather than underneath those surfaces, keeping them well away from the trampoline surfaces. Chains and springs are used to span the distance between frames and the horizontal trampoline runway. Additional chain is stretched from the horizontal trampoline runway to the floor to keep the inclined trampoline beds from pulling on the horizontal trampoline runway.

Abstract: The invention relates to a method for laying a playable surface such as playing field, comprising the steps of forming a hard substrate, arranging on the hard substrate a layer of resilient and/or damping material, and arranging a top layer on the resilient and/or damping layer, wherein during or after arranging of the hard substrate and/or the reliant and/or damping layer air chambers are formed therein. The behavior of the playing field becomes more natural due to these air chambers, and excessive resilience and energy restitution are avoided. The air chambers can be formed for instance by creating recesses in the relevant layer from the top, or by removing material from the layer at different location after arranging thereof, for instance by melting or biological decomposition of inclusions. The invention also relates to playing field obtain by application of this method.

Abstract: A rectangular dodge ball field has two opposed parallel ends and two opposed parallel sides. Each side and each end are formed of rectangular panels having vertical and horizontal rails. Vertical extender rails extend upwardly from the rectangular panels. A plurality of variously shaped connectors couple together rails of the side panels and end panels and extender rails. Flexible fabric netting is located between the rails of the side panels and the end panels and the extender rails. Straps separably couple the flexible fabric netting to the side panels and end panels and extender rails.

Abstract: Systems and methods are provided relating to martial arts competitions including martial arts games, team competitions, and a martial arts combat league. A martial arts combat league may combine traditional aspects of martial arts competitions with the appeal of rooting for a favorite team or individual competitor. Martial arts competition rules and scoring systems may be provided for the martial arts combat league. A martial arts competition area may be provided for presentation of martial arts combat league events. A novel scoring system may involve and inform fans of the martial arts combat league.

Abstract: A method and device for installing synthetic turf uses a motorized turf rollout vehicle and a frame removably carried by the vehicle, the frame holding a roll of synthetic turf on a spindle at a first, forward end thereof. The roll and spindle are held in an orientation that is transverse to the first forward direction, and have a transverse dimension that extends beyond that of the vehicle. As the vehicle moves forward in the first direction, the vehicle engages and pulls the roll of turf, and the vehicle also moves on top of the just-unrolled portion of the turf. This accurately and efficiently places the turf on and over the base, in a desired position. Because the vehicle moves on top of the just unrolled section of turf, the present invention eliminates direct contact with, and disruption to, the underlying prepared base.

Abstract: A safety surface for use over a supporting base in a designated area of a playground includes a bottom layer arranged for placement over the supporting base, a plurality of mesh bags, each of the mesh bags filled with a plurality of pieces of a shock absorbent material, and a border arranged for placement along selected edges of the designated area. The mesh bags are sized and shaped to abut adjacent mesh bags, with a portion of the mesh bags arranged to abut the border. And internal divider is positioned in an interior of the mesh bags, with the internal divider arranged to divide the interior of the mesh bags into a plurality of interior compartments. A top layer is arranged to overlie the mesh bags and arranged for securement to the border.

Abstract: The present document describes a padding layer for a multi-layered sports playing field. Various improvements are proposed for enhancing athlete's safety, surface hardness, water drainage, heat management, ease of assembly/installation, durability/longevity, uniformity, resistance to change in weather according to seasons, and stability. The improvements include: matching (multiple-wise) of spacing between rows of backstitches of the top layer and the drainage channels on top surface of the padding layer; a slit in the external tab portion of the padding layer panel, a slit near the lateral part of the tab or blank portion providing a hinging effect thereto, and/or protrusions at various positions on the tab or blank portions to account for change in size of the padding layer panel; drainage holes within the drainage channels; and various configurations of drainage channels on the bottom surface of the padding layer to improve evacuation of water toward the sides of the playing surface.

Abstract: A gradient-adjustable skate park system and methods for using the same are provided. In accordance with some embodiments, a skate park system comprises a plurality of structures, wherein each structure of the plurality of structures includes one or more features for allowing a skateboarder to perform at least one skateboarding trick, a plurality of raising mechanisms coupled beneath at least a portion of the plurality of structures, and a processor that is configured to control the plurality of raising mechanisms to decline the plurality of structures by a predetermined angle.

Abstract: A system to reduce or eliminate the sill of dasher boards on the play area side of a transparent plane is disclosed. The system features spacers and extensions which support the transparent panes in a more inward position. The system can be installed initially or used to retrofit an arena. The system is suitable for straight and curved-corner portions of the boards assembly. The system is suitable for use with panes of tempered glass or of transparent plastic.

Abstract: An area suitable for sporting activities comprises an upper synthetic surface layer, and a sub-surface support layer which includes a load bearing structural module. The structural module comprises a top wall and a bottom wall spaced therefrom by one or more supporting elements so as to define a volume between the top and bottom walls. The top wall is provided with a plurality of apertures to permit the flow of liquid into and out of the volume. The size and shape of the apertures is such that the apertures cause substantially no variation in the flatness of the synthetic surface layer.

Abstract: A ground covering for sports areas, in particular tennis courts. In order to provide a ground covering for sports areas and in particular for tennis courts which has not only the advantageous play properties of a sand court but also the care and maintenance properties of a hard court, there is provided at least one layer (4) having a first, mineral particle material (1) which is doubly crushed and a second particle material (3) and also a binder (2), wherein an average particle size of the second material (3) is less than an average particle size of the first material (1), and the second material (3) is arranged at least partially in depot zones (5) formed by the first material.

Abstract: A method of forming a substrate for a sports surface of a sports pitch includes the steps of: a) Agglomerating plastics materials; b) Granulating the agglomerated plastics materials to form granules having a predetermined range of sizes; c) In situ coating the granules with a binding material so that they form a fluent material; d) Forming a layer of the fluent material on the site of the sports pitch; and e) Setting the laid material such that the granules adhere where they contact each other to form a voided water permeable structure.

Abstract: A self-contained, controlled access, triathlon complex is described that includes a dedicated artificial body of water having a swimming starting point and a swimming finish point; dedicated biking roadway having a biking starting point adjacent the swimming finish point, and a biking finish point; a dedicated running path having a running starting point adjacent the biking finish point, and a running finish point; and an access limiting boundary surrounding the body of water, biking roadway and running path, the boundary including at least one gate for allowing controlled access to the complex.

Abstract: An artificial surface suitable for making horse tracks includes fine siliceous sand with median granulometry less than 500 ?m and a silica content higher than 60 % wt., and a proportion by weight ranging from 3 to 5% of very fine hollow synthetic fibers of polyester or polypropylene.

Abstract: A trampoline arena includes a framework assembly having a plurality of frame elements defining an outwardly sloping outer wall, and a deck, a plurality of voids being defined between the framework elements. The arena also includes a plurality of trampolines connected to the frame elements along peripheries thereof and extending across the plurality of voids to further define the outwardly sloping outer wall and deck, and a padding assembly including a plurality of pads overlying the frame elements and the peripheries of the trampolines.

Abstract: A flooring system having a top floor layer, a sub-floor, and an underlayment material disposed between the sub-floor and the top floor layer is disclosed. The underlayment material may include a cross-linked, polyolefin foam having a moisture vapor transmission rate of less than about 3.0 lb/1000 ft2/24 hr, and an average sound pressure level of less than about 15 dB over a range of about 300 Hz to about 1000 Hz. Foam density, gel fraction, and resin blend may combine to provide an underlayment material having such reflective sound and moisture vapor barrier properties.

Abstract: A water attraction, involving a flowing body of water, for performing board-riding maneuvers is described. A water attraction according to the present invention includes an activity section adjacent a safety chute; opposing sidewalls adjacent to a safety chute; a water delivery section creating water flow towards a safety chute; a water recovery section; and a rideable surface area. The rideable surface area further includes irregularly shaped surfaces with varying angles and elevations to increase difficulty and creativity in board-riding maneuvers.

Abstract: A ramp system includes at least one ramp component. Each ramp component includes a front surface provided a user sliding thereon and a back surface opposite to the front surface and facing to the ground. The at least one ramp component each has a connecting portion including at least one connecting block and at least one connecting recess spaced by the connecting block. The at least one connecting block and the at least one connecting recess can be assembled with that of other ramp components at random to create a skating facility. These ramp components are easily assembled for use and disassembled for storage and transport.

Abstract: The present invention relates to an area suitable for equestrian use. The area comprises an upper, equestrian surface layer, and a sub-surface support layer which includes a plurality of laterally arranged load bearing structural modules. Each module comprises a top wall and a bottom wall spaced therefrom by one or more supporting elements so as to define an interior volume between the top and bottom walls, and is provided with at least one aperture to permit the flow of water into and out of the volume. There is a system for retaining water within at least some modules in the sub-surface support layer. A water permeable layer that is impermeable to solid particles of the upper, equestrian surface layer is provided between the structural modules and the equestrian surface layer. A wicking system is in fluid communication with the interior volumes of at least some of the modules and have portions extending upwardly to transfer water to the upper, equestrian surface layer from the sub-surface support layer.

Abstract: A trampoline arena includes a framework assembly having a plurality of frame elements defining an outwardly sloping outer wall, and a deck, a plurality of voids being defined between the framework elements. The arena also includes a plurality of trampolines connected to the frame elements along peripheries thereof and extending across the plurality of voids to further define the outwardly sloping outer wall and deck, and a padding assembly including a plurality of pads overlying the frame elements and the peripheries of the trampolines.

Abstract: The inclined sand training apparatus includes a front, inclined surface that is sand-filled and lined with sand-filled steps. A walkway traverses across a ridge formed between the front, inclined surface and a rear, inclined surface that is covered in grass. The training apparatus is designed to resemble a sand dune and provide training and workout experiences that includes sand-filled steps, walkway, and a rear, inclined surface covered in grass. The sand-filled steps consist of a concrete riser capped off with a rubber edge that are both back-filled with sand. Lights and other accessories provide a gym-like environment to aid in the training and workout, and further comprise a pool, cycle hut, showers, seating, bathrooms, first aid, and storage.

Abstract: A somewhat flexible floor assembly is supported by a matrix of spaced-apart vertically-adjustable devices, such as electrically-operated jacks operated by servo motors. The devices are centrally individually controlled whereby height of the devices may be individually varied so that the floor surface may have its contour varied as desired. Somewhat flexible metal rods are supported by the jacks, and they in turn support joist assemblies which support a subfloor and flooring surface. The vertically-adjustable devices may be controlled by a computer, which may access data corresponding to a number of selectable pre-configured contours, such that selection of one of the pre-configured contours causes the height of the devices to vary so as to move the floor surface to a configuration corresponding to the selected pre-configured contour. The pre-configured contour may be, for example, a simulation of a real-life golf green.

Abstract: An amusement center has at least one game cell. The game cell has a first video game console system including at least one controller; a first projection screen; a first video game; and a first decor themed to correspond to the subject matter of the first video game.

Abstract: A unitary roll-form shock and drainage pad for an outdoor field installation is formed by a continuous length of shock-absorbing polymer foam sheet. The sheet has a plurality of grooves in its lower surface, the grooves extending continuously along the length of the foam sheet and being spaced apart across the width of the foam sheet, each groove having a crest defining a maximum penetration of the groove through the thickness of the foam sheet. The foam sheet further defines a plurality of rows of vertically extending holes extending from the upper surface of the sheet toward the lower surface, the holes in each row being spaced apart along the length of the foam sheet and being aligned with a respective one of the grooves such that the holes extend into the crest of the groove. A plurality of elongate through-going slots radiate out from each of at least some of the holes.

Abstract: A compliant insert for flexibly supporting a synthetic floor tile above a ground surface that includes one or more elongate bodies, with each elongate body having a longitudinal axis oriented parallel to a top surface of the floor tile, a top face having an attachment interface for coupling to a tile support structure extending downward from an underside of the floor tile, and a bottom face of having at least one contact flat for contacting the ground surface and at least one upwardly-directed recess for allowing liquids to flow underneath the insert. Each of the elongate bodies also has a thickness and stiffness sufficient, in an unloaded state, to elevate the support structure a distance above the ground surface.

Abstract: A safety surface for use over a supporting base in a designated area of a playground includes a bottom layer arranged for placement over the supporting base, a plurality of mesh bags, each of the mesh bags filled with a plurality of pieces of a shock absorbent material, and a border arranged for placement along selected edges of the designated area. The mesh bags are sized and shaped to abut adjacent mesh bags, with a portion of the mesh bags arranged to abut the border. And internal divider is positioned in an interior of the mesh bags, with the internal divider arranged to divide the interior of the mesh bags into a plurality of interior compartments. A top layer is arranged to overlie the mesh bags and arranged for securement to the border.

Abstract: A flooring system having a top floor layer, a sub-floor, and an underlayment material disposed between the sub-floor and the top floor layer is disclosed. The underlayment material may include a cross-linked, polyolefin foam having a moisture vapor transmission rate of less than about 3.0 lb/1000 ft2/24 hr, and an average sound pressure level of less than about 15 dB over a range of about 300 Hz to about 1000 Hz. Foam density, gel fraction, and resin blend may combine to provide an underlayment material having such reflective sound and moisture vapor barrier properties.

Abstract: The present document describes a padding layer for a multi-layered sports playing field. Various improvements are proposed for enhancing athlete's safety, surface hardness, water drainage, heat management, ease of assembly/installation, durability/longevity, uniformity, resistance to change in weather according to seasons, and stability. The improvements include: matching (multiple-wise) of spacing between rows of backstitches of the top layer and the drainage channels on top surface of the padding layer; a slit in the external tab portion of the padding layer panel, a slit near the lateral part of the tab or blank portion providing a hinging effect thereto, and/or protrusions at various positions on the tab or blank portions to account for change in size of the padding layer panel; drainage holes within the drainage channels; and various configurations of drainage channels on the bottom surface of the padding layer to improve evacuation of water toward the sides of the playing surface.

Abstract: A temperature compensating outdoor wall padding apparatus in one embodiment incorporates a stretch fabric into the edges of a vinyl cover to provide a tension on the vinyl cover minimizing the possibility of wrinkling of the vinyl cover due to a change in temperature. In another embodiment, the temperature compensating outdoor wall padding apparatus may employ a resilient cover, stretchable in 4 directions and pre-tensioned to provide tension on the resilient cover minimizing the possibility of wrinkling of the resilient cover due to a change in temperature. Methods for forming the same are also disclosed.

Abstract: One or more moving or stationery platforms raised above soft landing areas, such as water, foam pits, nets, or padded landing areas. Individuals or team members are assigned to the platforms. Opposing individuals or team members are also assigned the platforms to compete for possession of the platforms. The competitors wrestle one another for possession of each platform. A competitor who is caused to fall off of the platform is the loser; the competitor who maintains possession of the platform is the winner. In certain embodiments, the winner moves to other platforms to compete with winners of other platforms.

Abstract: A riding floor assembly has a support layer laid on a subfloor. The support layer, or ground preparation layer, is formed of ground preparation elements that are substantially formed of plates and are arranged next to one another. A footing layer covers the upper side of the ground preparation layer. A plurality of tufts of bristles are provided on that side of the ground preparation layer facing toward the footing layer. The tufts of bristles have a length selected such that the bristles do not project out of the footing layer.

Abstract: A sport landing cushion may comprise an airbag comprising first and second inflatable compartments or first and second airbags, wherein the first compartment (airbag) is thicker than the second compartment (airbag) and provides a base, and wherein the second compartment (airbag) provides a landing surface and is for inflation to a higher pressure for use than is the first compartment (airbag). A container therefor may comprise an enclosure for a rolled deflated airbag and having an opening through which a deflated airbag may pass, a winch, and an air supply for inflating the airbag.

Abstract: A take-off board system for a triple or long jump generally includes an elongated frame, an elongated take-off board, and a track material member. The frame includes inwardly-extending flanges defining a chamber therein. The take-off board includes a first portion slidably receivable in the chamber of the frame, and a second portion defining an outer take-off surface. The track material member is disposed on an outer surface of the frame. The take-off board system is disposable in a first position in a cavity in the ground with the outer take-off surface of the take-off board disposed even with a track surface, and the take-off board assembly is disposable in a second position in the cavity in the ground with an outer surface of the track material member disposed even with the track surface.