Abstract: A method for depicting a batter count box on a display is provided. The method includes the steps of employing a plurality of pixelated sections, with the plurality of pixelated sections including a pixelated balls section and a pixelated strikes section within the batter count box.

Abstract: There is disclosed an improved impact absorption padding for a contact sports helmet, for contact sports such as football, hockey and lacrosse, which incorporates a plurality of air pockets formed from a resiliently flexible material, such as plastic or rubber. At least some of the air pockets enclose a coil or spring. The coil or spring is also resiliently flexible over a wide range of temperatures, and oriented to compress in the general direction of impact to absorb a substantial portion of the energy before it is transferred to the head of the player. The coil or spring is also sized and shaped to return the air pocket to a desired thickness and shape after an impact. The air pockets may be arranged to substantially cover the outside of a contact sports helmet shell as a layer of impact absorption padding. A second inner layer of impact absorption padding may also be provided inside the contact sports helmet shell.

Abstract: A batting pad comprising a body made from a cushioning material and having a ring portion adapted to fit over a batter's thumb and an appendage to cushion the palm area between a batter's thumb and index finger. The appendage has a thickness T at its thickest point located between the first end and the distant end, and the thickness T of the appendage is selected to optimize an angle of a bat in the batter's hand relative to a line parallel to the batter's forearm, the angle being determined by the thickness T of the appendage displacing the bat toward the tip of the batter's index finger and causing the bat to contact the palm of the batter's hand near the batter's little finger.

Abstract: A roller board device like a skateboard or scooter operated by a user with one or more user-maneuverable wheel assemblies that are automatically returned to their “true north” position is provided according to the invention.

Abstract: An environmentally friendly composite material for use in the manufacture of professional grade skateboard decks and other high quality equipment and sporting gear. In the one embodiment, a skateboard deck is manufactured from a composition of recycled hard rock maple wood fibers, a polyvinyl acetate adhesive, a cross-link catalyst and water. The malleable nature of the composite material prior to curing, allows the skateboard deck to attain virtually any desired shape. Differing composites and adhesives may be employed to achieve the a similar product when properly cured. Once cured, the composite material is light weight, strong, durable, and requires no lacquers or other sealers.

Abstract: Card shufflers usable in forming and dispensing randomized playing card hands for use in playing card games include a card input mechanism for inputting cards into the card shuffler, a card storage device for receiving cards from the card input mechanism and temporarily storing cards within the card shuffler, and a card output mechanism for outputting shuffled cards from the card shuffler. The card storage device may include a wheel configured to rotate within the card shuffler. The rotatable wheel may have a plurality of card storage compartments therein, each of which may be sized and configured to hold two or more cards therein. Related methods involve the use of such card shufflers in playing card games.

Abstract: A method of delivering cards from a card housing unit during a card game including automatically detecting, using one or more processors, at least one of a card being held within an opening in the card housing unit for a period of time longer than a predetermined period of time or an attempt to manually draw a card from the opening after the card game ends, and based on the automatic detection, controlling, using one or more processors, operation of a lock member to restrict movement of the card relative to the opening in the card housing unit.

Abstract: A scratch-off fantasy sport gaming ticket has: a ticket support sheet; two or three distinct regions of images on one side of the ticket support sheet; a first region providing a random distribution of symbols indicating a number of distinct sports events which the ticket can use; a second region of images providing either i) a random distribution of multiple symbols indicating one sports team or player on which the ticket can be used with the number of distinct sports events; a third region providing a random distribution of symbols indicating a sports statistic to be associated with both the multiple symbols indicating the number of distinct sports events and the sports team or player; and each of the two or three visually distinct regions of images have an opaque scratch-off coating over them, or ii) a second region having both events and statistical target in each distinct region.

Abstract: The invention provides a game apparatus having matched inner and outer vessels and a set of cards that can be used to play a game. Each vessel of the game apparatus is configured to hold a liquid such as water or beer, which can be dispensed into the vessel body through the open top. The outer vessel is larger than the inner vessel and configured to hold the inner vessel in a substantially upright position and rotatable in its hollow interior. The matched inner and outer vessels can be used to play a game in which two or more players take turn adding at least a drop of water to an inner vessel placed in a fluid-filled outer vessel until a player loses by causing the inner vessel to sink by adding more fluid than the inner vessel can hold. The invention also provides a plurality of karma cards that are content matched to a two-vessel game apparatus.

Abstract: Tradable physical collectible objects are described. In particular, systems and methods for using the tradable physical collectible objects facilitate generation of a digital copy that can be used within a network game. A user can use the digital copy and perform various modifications to the digital copy. A value can be determined for the digital copy based on the various modifications. At a later date, the user (e.g., owner) is free to give away, sell or trade the digital copy to another party in transaction with terms based on, for example, the determined value of the digital copy.

Abstract: Apparel is disclosed that can be worn to assist an interactive game in tracking the movement of the wearer. More particularly, the apparel may include one or more tracking marks formed of designs, patterns, or reflective materials that can be easily tracked by an interactive game employing one or more cameras or other detectors for detecting a change in position of an object. The apparel may take the form of, for example, hats, shirts, jackets, pants, gloves, and shoes. The apparel may use reflective materials, and the interactive game can employ a camera and a light source configuration where the camera is located within the observation angle of a player employing retroreflective materials reflecting light from the light source.

Abstract: Aspects of the technology described herein provide an input mechanism that allows a user to select characters for input to a text area of a computing interface. The technology can be implemented as a virtual keyboard. Selecting a single output for the keyboard requires a user to provide two inputs. Each input is provided with reference to a different layer. Providing the first input to the first layer activates a second layer specific to the key selected with the first input. Each key in the first layer can be associated with a unique second layer. The output (e.g., a character) is determined from the second layer by providing a second input. The combination of the first and second input selects the ultimate output. In one aspect, the first input and the second input only have a directional component.

Abstract: A toy system comprising one or more toy elements configured to be detectable by a touch screen when brought within a proximity of the touch screen; and a computing device configured to: detect said one or more toy elements within a proximity of the touch screen; detect, in addition to detecting said one or more toy elements, one or more further touch events on the touch screen in a first predetermined spatial relationship to the detected one or more toy elements; and responsive to the detection of said one or more further touch events on the touch screen in said first predetermined spatial relationship to the detected one or more toy elements, to cause a user-perceptible output.

Abstract: In an aspect, an augmented reality game system is provided including a mobile smart device such as a smart phone and a remotely controlled drone. The mobile smart phone device is programmed to display an augmented environment, being the real environment viewed by the camera and a virtual environment superimposed over images of the real environment. The drone is controlled via commands transmitted wirelessly by the mobile smart device. The mobile smart device is programmed to execute a video game, which includes activities requiring a player to control the drone in relation to the augmented environment displayed on the mobile smart device video screen. The drone is powered by a rechargeable battery, and the video game includes activities that keep the player occupied with the game while the drone's rechargeable battery recharges.

Abstract: A thumbstick for a user input device comprises an adjustable tensioning mechanism configured to modify a tilt tension of a tiltable post. The thumbstick comprises a cap with a stem that defines a first cavity. A base is moveable with the tiltable post and comprises a portion extending into the first cavity. The portion defines a second cavity and comprises a protuberance projecting into the second cavity. An adjustment body within the second cavity comprises a recessed slot and a contacting surface at a distal end. The slot is configured to engage the protuberance to adjust the tilt tension of the tiltable post.

Abstract: There is provided an information processing apparatus including a waveform generation unit configured to generate a waveform according to a relative movement between two objects in a virtual space, and an output control unit configured to control a haptic output and a sound output on the basis of frequency distribution of the waveform generated by the waveform generation unit.

Abstract: Methods and systems to identify options of secondary client devices for a device handover of game play include establishing a session of game play of a game for a primary client device by executing the game on a server for streaming video frames to the primary client device. A request is received to generate a profile of one or more secondary client devices that are identified to be local to the primary client device. The profile is configured to identify device attributes for the secondary client devices. A handover option is provided to the primary client device during game play, identifying one or more of the secondary client devices, based on the profile. A selection of a secondary client device identified by the handover option received from the primary client device causes pausing of the streaming of video frames to the primary client device, saving a game state for the game and providing an option to resume play of the game on the secondary client device.

Abstract: The present invention concerns a method and a device for estimating the value of an input in a real-time system. It concerns more particularly real time interactive systems where the input is tracked using a first sensor, typically a camera in presence of a perturbing factor. The perturbing factor is estimated using a second sensor. The component of input computed values due to the perturbing factor are cancelled based on this estimation. A next input value is then estimated from the previous computed input values where the perturbing factor has been cancelled. The estimation is then corrected by applying back the estimation of the perturbing factor.

Abstract: An augmented reality (AR) game system is disclosed wherein real-world objects are transformed into AR terrain elements and AR events generate real-world impact. The game environment is set up using real-world objects that include everyday objects and game pieces on a field of play. When viewed on the screen of a computing device executing the modules of the game system, the everyday objects are transformed into elements of an AR terrain while the game pieces can be augmented with various controls. Multiple viewing modes, for example, a third person view, a first person view or “POV” view from a selected game piece or a split screen view are contemplated for viewing the field of play. A subset of the augmented controls can be activated by the user to execute AR events some of which can have real-world impact. The AR events are executed based on game rules.

Abstract: A method including defining a virtual space. The virtual space contains a first player character associated with a first user, a second player character associated with a second user, and virtual points of view for defining field-of-view images to be provided to a first HMD associated with the first user and to a second HMD associated with the second user. The method includes identifying first and second parts of the second player character. The method includes moving the first part in synchronization with a detected movement of the second user. The method includes displaying the second part in connection with a detected movement of the first part. The method includes setting a first transparency rate of the first part and a second transparency rate of the second part. A transparency rate of at least a portion of the second part is greater than the transparency rate of the first part.

Abstract: A terminal apparatus includes a storage device that stores state information of game contents changing according to progress of a game; a screen information generator that generates first information relating to a display of the game contents on a display screen and second information relating to a display of the state information on the display screen; an output device that outputs the first information and the second information to the display screen at a predetermined timing, respectively; and an instruction receiving device that receives a switching instruction to switch between display of the game contents and display of the state information on the display screen, wherein the screen information generator generates the second information based on latest state information stored on the storage device at a time when receiving the switching instruction.

Abstract: A game processing system that controls a display to display a plurality of graphic forms each indicating an identifier; identifies a trajectory of a continuously drawn input selecting a plurality of the graphic forms; identifies the identifiers of the graphic forms corresponding to the input trajectory; identifies at least a first command based on an arrangement of the identifiers when detecting an end of the input; and controls a game operation of attacking an opponent based on the command.

Abstract: Embodiments of the present invention provide a method, system and computer program product for dynamic quality of service (QoS) management for multi-player gaming. In an embodiment of the invention, a method for dynamic QoS management for multi-player gaming is provided. The method includes monitoring a multi-player game and detecting a game moment for a game player in the multi-player game. The method also includes determining a degree of sensitivity for the game moment and enhancing access to a computing resource of the game player in response to determining the game moment to be highly sensitive. In one aspect of the embodiment, the method additionally includes detecting a subsequent game moment for the game player in the multi-player game, determining a degree of sensitivity for the subsequent game moment, and reducing access to the computing resource of the game player in response to determining the game moment to be less sensitive.

Abstract: Disclosed are systems and methods for modeling behavior of game elements during a remote game between at least two users. The system includes a positioning module configured to determine parameters for at least two game elements representing physical objects, and game manipulators that detect a physical action performed by a user in order to exert a force action on at least one game element and calculate one or more physical parameters characterizing the physical action. The system further includes a module for performing force actions that determines the game element to be subject to the detected physical action and perform a force action on the determined game element. The system further includes a control module that determines behavior parameters for the game elements characterizing a change in state of the game elements, and a visualization module that generates a behavior model of the game elements.

Abstract: A list of attribute categories associated with a plurality of graphical assets to construct a simulated element of a graphical simulation is received. An element profile for the simulated element using the list of attribute categories is determined, wherein the element profile comprises an attribute value for each attribute category of the list of attribute categories. A list of graphical assets from the plurality of graphical assets that match the element profile is identified. A set of graphical assets from the identified list of graphical assets to be used to construct the simulated character is selected non-deterministically from the list, and the simulated element is subsequently constructed using the selected set of graphical assets.

Abstract: Methods and apparatus for automatic game generation are described. The method may include collecting, by a hardware processor of a server over a network, first information associated with a first video game player, second information associated with a second video game player related to the first video game player, and a plurality of events that the first video game player and the second video game player have participated in. The method may also include creating a comparison tree for each of a plurality of event types associated with the plurality of events. The method may further include evaluating the comparison tree against a plurality of video game results to determine outcomes that are satisfied, and for each of the outcomes, generating a plurality of templates.

Abstract: A method for providing a battle game in which a user repeatedly attacks and defends against an opponent using a plurality of objects placed in a plurality of areas arranged in a matrix, includes: a selection step of causing the user to select an area from the plurality of areas, and holding the area which has been already selected as a selected area; a first execution step of causing an object placed in the selected area; a determination step of determining whether or not a combination of an already selected area and the currently selected area matches at least one line which is any of a row, a column, and a diagonal of the matrix; and a second execution step of causing an object to execute a second action, in the case where the determination step determines that the combination matches the at least one line.

Abstract: A system for providing an interactive experience for multiple game-players. The experience is provided in a light-controlled setting where the game-players may wear or hold one or more of various toys (e.g., gloves). The system detects and recognizes the toy along with gestures and pointing efforts performed by the game-player and the system generates an effect based on the type of toy and the type of gesture. The system also generates one or more visual targets that are visible to the game-player such as projections, holograms, and displays of one or more of various fantasy virtual adversaries. The generated effects may include any combination of sensory effects including visual, audio, tactile, and smell/taste. The generated effect may be directed based on the pointing efforts of the game-player. The system may then register the effect on the target, if the pointing efforts intersect with the virtual location of the target.

Abstract: A system and method for collecting information related to a video game including a physical object such as a toy. The system includes a game console having a processor for executing instructions to conduct video game play using the physical object. During the game play, data related to the toy may be stored for on the physical object or game console and provided to a server.

Abstract: A game operating device (controller) includes a longitudinal housing, and a holding portion held by hand to be wrapped by its palm it is formed in the housing. A direction switch is provided on an upper surface at a position where it can be operated by thumb of the hand holding the holding portion, and a start switch and a select switch are provided backward thereof. An X button 46 and a Y button are further arranged in line on the upper surface of the housing. An imaging information arithmetic unit is provided at a front end of the housing in a longitudinal direction in such a manner that an imaging device thereof is exposed from a front-end surface. A concave portion is formed on a lower surface at a position corresponding to the direction switch. The concave portion includes a valley and two inclined surfaces. An A button capable of being operated by index finger of the hand holding the holding portion is provided on the backward inclined surface.

Abstract: A system in accordance with present embodiments includes a plurality of vehicles having vehicle interface circuitry and configured to accommodate one or more riders. In certain embodiments, a vehicle of the plurality of vehicles is configured to receive respective inputs from the one or more riders via the vehicle interface circuitry, and wherein the respective inputs are related to one or more game features of a game environment; and a game controller configured to receive information from the vehicle interface circuitry related to the respective inputs; and provide instructions to modify the game environment based on at least one of the respective inputs.

Abstract: A vertical wind tunnel skydiving simulator including a flight chamber entrance that has a curved air deflector that extends into a waiting chamber, in which a convex surface of the curved air deflector faces across or towards the flight chamber entrance or into the flight chamber, and extends into the waiting chamber a sufficient distance to substantially reduce the flow of turbulent air into the waiting chamber. The curved surface is at the top of the entrance and can also be at the sides. The shape the curved surface takes is sufficient to minimize the flow of turbulent air into the waiting chamber; the effect is to make it more comfortable and less noisy for people in the waiting area. This also helps to preserves the laminar, non-turbulent flow of air in the flying chamber, even across the flight chamber entrance. This makes flying more comfortable and predictable.

Abstract: In an aspect, a toy assembly is provided, and includes a housing, an inner object, at least one sensor and a controller. The inner object is positioned inside the housing and includes a breakout mechanism that is operable to break the housing to expose the inner object. The at least one sensor detects interaction with a user. The controller is configured to determine whether a selected condition has been met based on at least one interaction with the user, and to operate the breakout mechanism to break the housing to expose the inner object if the condition is met. Optionally, the condition is met based upon having a selected number of interactions with the user.

Abstract: A throw-and-catch based toy with free fall sensing, impact sensing, and speaker output which includes a system, method and device for detecting a pre-determined motion from an accelerometer, comparing a sensed accelerometer information to a pre-determined accelerometer signature information, producing a sound based on the comparison of sensed accelerometer information to a pre-determined accelerometer signature information.

Abstract: A wobbling toy is configured to spontaneously re-orient itself in an upright position solely under the force of gravity. The self-righting toy includes a weight that is confined to and movable along a pathway such that the weight defines a dynamic mass that is sufficient to cause the housing to spontaneously pivot along a convex outer surface profile in coordination with a position of the weight in the pathway. The self-righting toy is configured to maintain a positional relationship of the weight so that the housing is spontaneously pivotable along the convex surface without external force supplied by a user.

Abstract: A water toy comprising a foam tube having a first end, a second end and a body therebetween, an optional seat positioned on the body, a first feature attached to the first end, and a second feature attached to the second end, the first and second features being aesthetic and/or functional and/or a combination of the same.

Abstract: The present application relates to a hard-core and soft-shell toy building blocks set, comprising polycarbonate matrix having tenon on its top and several mortise holes on its bottom; the outside surface of said polycarbonate matrix is cladded with thermoplastic polyurethane elastomer rubber layer. Said hard-core and soft-shell toy building blocks set provided in the this embodiment unitizes both conventional hard and soft kinds of cordwood toy by cladding thermoplastic polyurethane elastomer rubber layer on the outside surface of polycarbonate matrix, learning strong points from both to overcome their weaknesses, it produces high bounce ability, high resistance to wearing, bending, high temperature and oxidation, particularly, it is well worth mentioning that the new product is nonpoisonous, non-absorption of water and oil, no harm to health of children.

Abstract: A flying disc includes a substantially circular body having a top and a bottom and a groove extending around a perimeter of the body between the top and the bottom. The top of the body has an edge member around the outer perimeter of the top, and a domed portion in a central area of the top. A portion of the top between the edge member and the domed portion is inwardly curved. The bottom has an edge member around the outer perimeter of the bottom, a substantially planar portion in a central area of the bottom, and an inwardly curved portion between the edge member and the substantially planar portion.

Abstract: One exemplary embodiment can be a process for cooling a vent stream from a receiver. Generally, the process may include providing a refrigerant including at least one compound contained in the receiver so the refrigerant leaking into the receiver can be compatible with the process.

Abstract: A system for the crystallization of a substance to be crystallized which is dissolved in a solvent, comprising a crystallization apparatus which is flowed through by a solution to be concentrated which has the substance to be crystallized dissolved therein, and by a heating steam or a heating liquid, wherein the crystallization apparatus has at least one flow passage conducting the solution to be concentrated, at least one flow passage conducting the heating steam or the heating liquid, and at least one flow passage conducting vaporous solvent, wherein a respective flow passage conducting the solution to be concentrated is at least partly separated from a respective flow passage conducting the heating steam or the heating liquid by a steam-impermeable and liquid-impermeable wall and wherein a respective flow passage conducting the solution to be concentrated is at least partly separated from a respective flow passage conducting the vaporous solvent by a membrane wall permeable to the vaporous solvent, but not

Abstract: A liquid chromatography system includes a gradient proportioning valve in fluidic communication with sources of solvent. From the solvent sources, the gradient proportioning valve produces a low-pressure gradient stream. A first pump is in fluidic communication with the gradient proportioning valve to receive, pressurize, and move the pressurized low-pressure gradient stream to a flow-combining device. A second pump operates in parallel with the first pump and moves a pressurized solvent stream to the flow-combining device where the pressurized solvent stream combines with the low-pressure gradient stream to produce a high-pressure gradient stream. A second gradient proportioning valve can produce, from a second plurality of sources of solvent, a second low-pressure gradient stream, wherein the solvent stream moved by the second pump to the flow-combining device and combined with the other low-pressure gradient stream comprises the second low-pressure gradient stream.

Abstract: Contaminants are filtered from a fluid flow stream and the filter is regenerated by a process including steps of: providing a filter material comprising both carbon and potassium iodide; passing a contaminated fluid stream in contact with the filter material; adsorbing contaminants from the fluid stream onto surfaces in the filter material; passing an electric current through the filter material with adsorbed contaminant thereon; disassociating contaminant from the surfaces of the filter material; and removing disassociated contaminant from the filter material by carrying away the disassociated contaminant in a fluid flow mass.

Abstract: A device and method for removing hot molten wax or other material from a receptacle for a meltable tart or the like. The device has a heat resistant body formed of a material that is of sufficient porosity to absorb or soak up the hot molten wax or other material in the receptacle when it is positioned therein and to retain its structural integrity so that it can be disposed of after it has absorbed or soaked up the hot molten wax or other material.

Abstract: The present invention is directed to systems and methods for evaluating performance, performing process control, optimization and design of gravity separation process systems that are used to separate immiscible liquid dispersions (e.g., water-in-oil, oil-in-water mixtures) and emulsions for two-phase (liquid-liquid) or three-phase (gas-liquid-liquid) systems. According to one aspect, the design, simulation and control of such systems is performed using computational fluid dynamics (CFD) software that is configured for determining the separation efficiency of separators on the basis of the true geometry and multidimensional flow field and for a distribution of droplet sizes with the influence of the emulsion concentration on the rheology of the oil-in-water or water-in-oil dispersion.

Abstract: Vaults, boxes, systems, and methods of treatment systems to capture pollutants from storm water runoff and prevent the conveyance of these pollutants from entering a receiving water body or landscape area, which is designed to be a part of a local permanent storm water drainage infrastructure. A single treatment box, vault and system combines both drainage conveyance, multi-level treatment techniques, variable hydraulic capabilities, and easy and inexpensive methods for servicing the system. A flow spreader having a triangular shape with straight sides, or concave sides or convex sides can split incoming water to pass into dual screen filtration systems. Additionally, an upwardly angled debris ramp above a downwardly angled screened defector can be located on both sides of the flow spreader to help direct debris and trash into dual screened boxes.

Abstract: A process and apparatus for removing hydrocarbons from hydrocarbon containing drilling waste. The process includes introducing hydrocarbon contaminated drill cuttings into one or more centripetal cuttings separators to create two distinct phases, thereafter discarding the bulk solids containing less hydrocarbons and treating the concentrated liquids phase in a solvent wash apparatus, resulting in improved efficiency of the facility throughput, while not substantially impacting the capital cost or operating cost of a solvent wash process facility. Apparatus for performing the process is also described.

Abstract: Hydrodynamic separation of suspended particles using curved channels offers advantages in many applications, since it is a fast continuous flow technology that can handle neutrally and near neutrally buoyant particles without the need of a physical barrier or the addition of chemical aids. Designs are provided for a flow splitter at the end of the separation channel, to maintain smooth, counter-vortex-free laminar flow and improve particle separation efficiency while reducing clogging and fouling propensities.

Abstract: An underdrain apparatus and a method for manufacturing such apparatus are provided. The underdrain apparatus can be extruded in long sections as a unitary part. The underdrain apparatus may be extruded in various sizes, shapes, and materials. Further, the underdrain apparatus may include a passageway for transporting water to and from the filter media and/or air to the filter media. In some embodiments, apertures are formed in the underdrain apparatus during an extrusion process to provide a path between the passageway and the filter media.

Abstract: A floating media filter including a filter housing with an influent conduit extending into the filter housing, the influent conduit having at least one outflow aperture positioned below an effluent outlet of the filter housing. A floating media is positioned in the filter housing and forms a media bed when the filter is in a filtration stage, the media bed having a lower surface and an upper surface defining a filtration zone between the lower and upper media bed surfaces during the filtration stage. A diffuser trough is positioned in the filter housing such that (i) the lower surface of the media bed, when the filter is in the filtration stage, is below an upper edge of the diffuser trough, and (ii) the outflow aperture of the influent conduit is positioned sufficiently close to a surface of the diffuser trough such that influent flow, during the filtration stage, is initially directed against and/or along the surface of the diffuser trough, and then redirected in a path into the media bed.

Abstract: A backflush filter for liquid media, having a filter housing, which is formed by means of at least one supporting cage, which has at least two groups of slot-type apertures, and at least one filtering means supported on the supporting cage, where-in the apertures of each group extend in parallel alignment with one another and are separated from one another by ribs, and having a backflushing device, which is arranged in the interior of the filter insert, is rotatable and has at least one slit, said backflushing device being designed for flushing of the filtering means via the slit and apertures. The direction of motion of the backflushing device can be reversed during the backflush cycle and a filter insert therefore, wherein the backflush filter and the filter insert include a filtering means having a pleated, preferably multi-ply, filter fabric or filter cloth with pleating folds, and the ribs fit by means of a rib front into respective pleating folds.