Abstract: A part of a turbomachine made of composite material includes a fiber reinforcement having a three-dimensional weaving including a first set of yarns made of a first material, wherein the fiber reinforcement includes a vibration-damping element formed by a second set of yarns including a second material which is viscoelastic and which is different to the first material, the second set of yarns being woven with the first set of yarns.

Abstract: A ski, snowboard, or other gliding board for snow sports includes a horizontally-laminated core of at least first and second wooden layers overlying a low-friction base, and a layer of high-modulus non-wooden material, such as carbon fiber composite, overlying the core. The second wooden layer overlies at least a portion of the first wooden layer and preferably has a flexural modulus that is greater than a flexural modulus of the first layer. The wooden materials and dimensions of the first and second layers are selected to provide improved vibration damping. Manufacturing methods resulting in reduced waste and improved vibration damping performance are also disclosed.

Abstract: A ski includes an elongated ski body having a bottom layer defining a bottom surface of the ski, a top layer defining a top surface of the ski, and a middle layer disposed between the bottom layer and the top layer, in which the middle layer includes a negative Poisson's ratio (NPR) foam material having a Poisson's ratio of between 0 and ?1.

Abstract: The present invention relates to a process of manufacturing skiing equipment using a high-entropy alloy, especially manufacturing for a bottom member of a ski, a blade of an ice skate shoe or the bottom member of a skiing vehicle. The high-entropy alloy is used to prepare skiing equipment, so that the skiing equipment has a small friction coefficient, obtains good speed, and can be driven with less energy, which realizes energy-saving effect.

Abstract: A laminate blank includes at least one rigidifying layer and at least one comfort layer. The rigidifying layer includes a reinforcement preform and a resin. The layers are pressed to form the laminate blank.

Abstract: The present invention relates to a fan blade of a turbomachine comprising a structure made of composite material comprising a fibrous reinforcement obtained by three-dimensional weaving of strands and a matrix in which the fibrous reinforcement is embedded, which comprises a first portion forming the suction-side wall and a second portion forming the pressure-side wall, the strands of the fibrous reinforcement comprising first strands comprising carbon or aramid fibres, the Young's modulus of which is greater than 250 GPa, and second strands produced from a viscoelastic material and having a Young's modulus less than 10 GPa, the first portion comprises uniquely first strands whereas the second portion comprises second strands.

Abstract: A skateboard deck that is both stiff in one dimension and flexible in another dimension is disclosed. The deck includes an elongated body characterized by a longitudinal axis, a plurality of ribs, and a plurality of apertures. The plurality of ribs are long, narrow beams oriented substantially parallel to the longitudinal axis and integral with the bottom of the elongated body. The plurality of apertures are distributed in a plurality of rows also oriented substantially parallel to the longitudinal axis. The ribs and rows of apertures are interposed in an alternating pattern across the width of the deck. The resulting deck is stiff in the longitudinal direction yet flexible with respect to rotation about the longitudinal axis. The deck is therefore flexible enough to enable the front and rear trucks to rotate with respect to one another while still being rigid enough to withstand the weight of the rider.

Abstract: A sporting good implement, such as a hockey stick or ball bat, includes a main body. The main body may be formed from multiple layers of a structural material, such as a fiber-reinforced composite material. One or more microlattice structures may be positioned between layers of the structural material. One or more microlattice structures may additionally or alternatively be used to form the core of a sporting good implement, such as a hockey-stick blade. The microlattice structures improve the performance, strength, or feel of the sporting good implement.

Abstract: The present disclosure provides a snow transport system with a frame comprising a base plate, a pair of opposed side plates, and a plurality of cross members extending between the side plates. A pair of convex lower track slides are mounted on lower portions of, and a pair of convex upper track slides are mounted on upper portions of, the pair of opposed side plates. A drive wheel is mounted at an upper front portion of the frame and connected to be driven by a motor mounted within the frame, an idler wheel is mounted at a lower rear portion of the frame, and a continuous track is wrapped around the wheels and the slides. A push arm assembly is mounted to one side of the frame and extends forwardly from the frame with a push bar portion and user controls at a forward end thereof.

Abstract: Embodiments relate to a denticle scale array including a plurality of denticle scales arranged in pattern and configured to be incorporated onto a ski base, wherein the plurality of denticle scales includes at least a denticle scale including a glide contact area configured to contact terrain when the ski base is unweighted and moving forward, a kick contact area greater than the glide contact area and configured to contact the terrain when the ski base is weighted and not moving forward, at least a longitudinal profile comprising an S-curve, a curved trailing edge profile, and at least a longitudinal groove running parallel with the forward movement of the ski base.

Abstract: A thrust-responsive structure for skis includes a plurality of retractable elements. Each retractable element includes a portion configured to move from an elevated position to a retracted position. Each retractable element further includes a first retention feature. The structure further comprises a matrix surrounding at least a subset of the plurality of retractable elements. The matrix is static relative to the plurality of retractable elements. The matrix includes a plurality of second retention features configured to captively engage the first retention features of the plurality of retractable elements. A position of each retractable element of the plurality of retractable elements, in the elevated position, is limited by contact between the first retention feature and the second retention feature.

Abstract: This disclosure relates to a lubricant powder composition that is made from a combination of wax, grease thickener, and additives. The lubricant powder composition exhibits low frictional, and improved mechanical stability in high temperature environments. This disclosure further relates to the use of a lubricant powder composition in a mechanical component.

Abstract: A sliding board, preferably a snow sliding board, including: a front sliding board region including a front end of the sliding board; a rear sliding board region including a rear end of the sliding board; and a binding region, extending between the front sliding board region and the rear sliding board region in the longitudinal direction of the sliding board, for fixing a sliding board binding for holding a boot. The snow sliding board exhibits a multi-layered structure including at least: a sliding board core; upper layers which are arranged above the sliding board core; and lower layers which are arranged below the sliding board core. At least one of the upper layers and/or at least one of the lower layers includes a fiber-composite material, wherein the fiber-composite material includes a multitude of fibers, wherein the fiber-composite material in a region exhibits a fiber orientation which varies within the region.

Abstract: A gripping surface includes a plurality of projections extending away from the gripping surface and a plurality of voids between and defined by the projections. The gripping surface may be disposed on a support surface, such as a deck of a skateboard or a deck of a balance board. The projections may be formed by cutting the support surface with a router, such as a computer numerical control router. The projections may each comprise three or more angles surfaces, whereby angled surfaces of proximal projections are positioned at mirror angles of one another.

Abstract: A ski includes an elongate core and a fiber reinforced composite layer disposed over the elongate core. The fiber reinforced composite layer has a first plurality of fibers fixed in a resin and a second plurality of fibers fixed in the resin. The first plurality of fibers extend along a first arcuate path from a left side of the ski to a right side of the ski such that the angle of the first fibers with respect to the centerline increases from the left side to the right side. The second plurality of fibers extend along a second arcuate path from the right side of the ski to the left side of the ski such that the angle of the second fibers with respect to the centerline increases from the right side to the left side. In some embodiments the first and second plurality of fibers are symmetrically positioned in the composite layer.

Abstract: A socket has a main body that accommodates a PCBA (Printed Circuit Board Assembly) to be inspected. The PCBA includes a substrate mounted with an electronic component, and terminals protruding from the substrate and having side surfaces exposed at an outer peripheral surface of the substrate, and the terminals are positioned within a cavity or opening of the main body in a state in which the PCBA is accommodated in the cavity or opening. The socket further has probes respectively including a fixed part fixed to the main body, and a movable part movable with respect to the fixed part, and a pressing part to press against the movable part of the probe. The movable part includes a tip end part that moves to a position contactable to the side surface of one terminal within the cavity or opening, when the pressing part presses against the movable part.

Abstract: A skateboard deck that has a reduced weight, improved strength, and is, overall, more resilient. The addition of composite laminate layers improves the strength and performance of the skateboard. A composite layer may include carbon fiber layers, which are used to reduce the weight and thickness of the skateboard, while increasing the resilience and strength. Layered, high-strength tipfills and layered side edges may prevent chipping and delamination. The composite layers may inlay into the tipfills and side edges, allowing for protection of the composite layers. The tipfills and side edges protect the various other layers and prevent normal wear from abrasion, chipping, and delamination of the deck.

Abstract: A sports board comprises, at a minimum, a top layer, a bottom layer, and a core in between them. A structural element with puzzle piece shape fits into a correspondingly shaped seat formed by the core, in between the top and bottom layers. The shape of the structural element prevents the structural element from being dislodged by shock forces frequently associated with use of the board. Machined or molded features are provided that penetrate or partially penetrate the structural element. These features, which are filled or included with resin, adhesive or another chemical bonding agent, resist horizontal shearing between the structural element, the core, and the top and bottom layers. A leading portion of the structural element protrudes out from in between the top and bottom layers, forming a bumper that acts as the first point of contact between the board and the ground or an obstacle.

Abstract: A design for snowsports devices such as skis and snowboards uses non-Newtonian materials. Non-Newtonian materials exhibit rate-sensitive characteristics, with stress vs. strain properties dependent on the rate of loading. The snowsports device with non-Newtonian materials has variable stiffness and damping, with both increasing according to an increased applied load-rate such that a single snowsports device exhibits soft flex characteristics under low applied load-rates, but stiffer flex characteristics under high applied load-rates. The flex of the snowsports device is self-adjusting, with no manual adjustment input required by a user. The non-Newtonian material may be incorporated into the structure of the snowsports device in a number of different ways, including in the core, in composite sheet layers, and other locations.

Abstract: Mechanical hooks made of bulk-solidifying amorphous alloys, wherein the bulk-solidifying amorphous alloys provide ruggedness, durability, higher service loads, excellent resistance to chemical and environmental effects, and low-cost manufacturing are provided. In addition, methods of making such mechanical hooks from bulk-solidifying amorphous alloys are also disclosed.

Abstract: A method of making a bamboo lamp or other item from bamboo including the drilling of a center portion of each of a bamboo section and injecting the center portion of at least a portion of the bamboo sections with an injectable spray foam. To make a bamboo lamp, the bamboo sections are dried and divided into base sections filled with foam and the single unfilled shaft section attached together to form a lamp shaft. The right and left ends of each foam-filled base sections are removed and the outer ends remaining are cut at a 30-degree angle, attached to external edges of a lower base, and glued together. An upper base can be attached to the lower base. Each base is drilled to accommodate the necessary light fixture parts for the lamp.

Abstract: A ski (s) equipped with on a base of said ski mounted skin preventing gliding backwards of said ski, said base material being of plastic at least in the gliding portion, wherein said skin being placed on the base of the ski (s) in a recess (c) said recess being formed essentially in the middle portion of said base. The base of said ski (s), including said recess (c), is formed of uniform plastic layer (h).

Abstract: The present disclosure relates to snowboards and skis that include a pair of edges for each longitudinal side of the snowboard or ski. The edges are laterally spaced apart, with one edge being an outer edge and the other edge being an inner edge. The inner edge is positioned vertically lower than the outer edge. The inner edge generally engages the snow surface prior to the outer edge, and is thus a transitional edge. Transitional edges may be rounded edges. The top surface of dual-edges snowboards or ski include an inner portion flanked on each lateral side by a lateral offset. A portion of the inner portion is recessed relative to the lateral offsets. The outer edges are positioned on a base surface of the lateral offsets. The inner edges are positioned on a base surface that is below the interface between the lateral offsets and the inner portion.

Abstract: Systems and methods in accordance with embodiments of the invention implement layers of metallic glass-based materials. In one embodiment, a method of fabricating a layer of metallic glass includes: applying a coating layer of liquid phase metallic glass to an object, the coating layer being applied in a sufficient quantity such that the surface tension of the liquid phase metallic glass causes the coating layer to have a smooth surface; where the metallic glass has a critical cooling rate less than 1000 K/s; and cooling the coating layer of liquid phase metallic glass to form a layer of solid phase metallic glass.

Abstract: The present invention is based on the combination of a snowboard with a 3-dimensional sole which wholly or partly has a tripartite sliding surface in the portion between the transition to the tip(s) and the binding fastening(s), in addition to which the board is equipped with an additional special 3-dimensional geometry in the tip(s), in order to continue the existing uplift in the lateral sliding surface (5), thereby ensuring better uplift and thus better glide and greater speed in loose snow, a combination which provides quite unique riding characteristics. The tip of the snowboard is designed in such a manner that it presses the snow under the board more efficiently, lifting it further up from the snow than an ordinary tip.

Abstract: A ski or snowboard includes a metal layer having integral flanges projecting from its opposite sides to define a cavity for receiving a base layer. Several additional layers of laminated wood and in some versions synthetic polymer or carbon are pressed and bonded together on the metal layer. A method of manufacturing includes a support plate which holds a base layer and edge members received in a slot in the perimeter of the base layer. Additional layers of the ski or snowboard are successively laid on the base layer and pressed and bonded together.

Abstract: A method of fabricating a snowboard or ski is provided. In one embodiment, a trench is routed at the face of a core. A thermosetting polymeric solution is poured into the trench. The thermosetting polymeric solution is cured to form a thermosetting polymeric mold. A region between the outer perimeter of the core and the outer perimeter of the trench is removed without stripping the thermosetting polymeric mold so as to form a sidewall integrally surrounding the core.

Abstract: A snow gliding board, integrating a structure element incorporated in a raised end of said gliding board, said element having a plurality of hollowed through openings between its upper and lower surfaces, distributed across its surface, wherein said element comprises in said raised end at least one region free of through openings, separating two areas having through openings, the width of said region being greater than the shortest distance between two through openings in the areas separated by said region.

Abstract: A ski, snowboard, or monoboard includes a base layer having a top surface and a bottom surface, a blade disposed on an outer edge of the top surface of the base layer, a lower body layer disposed on the top surface of the base layer and the blade, a core disposed on the lower body layer, an upper body layer disposed on the core, and a depth indicator disposed in the base layer and extending inward from the bottom surface of the base layer. The depth indicator has a visually perceivable characteristic that varies as a function of depth in the base layer.

Abstract: A protective top surface (6) for a board for gliding, which comprises at least one decorative component (10; 10?) passing through at least one slot or hole (7; 7?) in the protective top surface (6), comprising at least one lower part (11; 11?) arranged under the protective top surface (6) and at least one upper part (12) arranged above the protective top surface (6).

Abstract: A slide board for use on snow has a point of maximum width located beyond the contact line. The board includes a core extending over the greater part of the board, and a plurality of mechanical reinforcement layers lying directly or indirectly on the core, extending inside the board upturn beyond the contact line. The reinforcement layers are inclusive of that part of the board comprising the longitudinal axis. At least one of the reinforcement layers has an extreme longitudinal point offset transversely relative to the longitudinal axis of the board and, in a zone defined between the contact line and the point of maximum width, the reinforcement layer has an overall cross-section which decreases between the contact line and the point of maximum width. The reinforcement layers have extreme longitudinal points offset longitudinally relative to each other.

Abstract: A ski or snowboard includes a metal layer having integral flanges projecting from its opposite sides to define a cavity for receiving a base layer. Several additional layers of laminated wood and in some versions synthetic polymer or carbon are pressed and bonded together on the metal layer. A method of manufacturing includes a support plate which holds a base layer and edge members received in a slot in the perimeter of the base layer. Additional layers of the ski or snowboard are successively laid on the base layer and pressed and bonded together.

Abstract: Described herein is a sports board for gliding over a surface. The board includes an upper structural layer having an outer surface, a lower structural layer, a core having an upper surface substantially covered by the upper structural layer and a lower surface substantially covered by the lower structural layer. The board also includes a deformable element covered by the core on an upper surface. A first portion of the deformable element protrudes a distance beneath the lower structural layer towards a horizontal plane of the surface underlying the sports board. The board also includes a base element substantially covering the lower structural layer and the deformable element and an edge component positioned at least in part around a perimeter of the base element. At least a portion of the deformable element can deform upon application of an amount of pressure against the base element.

Abstract: Described herein is a sports board for gliding over a surface. The board includes an upper structural layer having an outer surface, a lower structural layer, a core having an upper surface substantially covered by the upper structural layer and a lower surface substantially covered by the lower structural layer. The board also includes a deformable element covered by the core on an upper surface. A first portion of the deformable element protrudes a distance beneath the lower structural layer towards a horizontal plane of the surface underlying the sports board. The board also includes a base element substantially covering the lower structural layer and the deformable element and an edge component positioned at least in part around a perimeter of the base element. At least a portion of the deformable element can deform upon application of an amount of pressure against the base element.

Abstract: A sport board is provided having a running surface which provides improved steering and directional control of the sport board. In one embodiment, the sport board has an arcuate bottom with a series of alternating ridges and grooves. The central ridges and grooves run parallel to the longitudinal axis of the board, while the ridges and grooves in the side areas run perpendicular to the longitudinal axis of the board. In a second embodiment, the sport board comprises a bottom having a small number of a larger ridges and grooves which arrangement provides better control. By use of either approach, however, turning and cornering of the board is more controllable. The board is also fitted with foot straps so as to be easily convertible from a sport board configuration to a snowboard configuration.

Abstract: A sports board, such as a snow board, has a board core structure that provides desired structural characteristics localized to select regions of the board while maintaining predictable produceability and optimum operating qualities of the board. In an embodiment, the sports board includes a plurality of layered elements or segments, of which certain elements or segments are joined using interlocking elements.

Abstract: A ski, snowboard, or monoboard includes a base layer having a top surface and a bottom surface, a blade disposed on an outer edge of the top surface of the base layer, a lower body layer disposed on the top surface of the base layer and the blade, a core disposed on the lower body layer, an upper body layer disposed on the core, and a depth indicator disposed in the base layer and extending inward from the bottom surface of the base layer. The depth indicator has a visually perceivable characteristic that varies as a function of depth in the base layer.

Abstract: A skateboard deck formed of laminated layers having increased twisting resistance around its center axis provided by fiber reinforced polymer matrix composite members running along the center axis and cross members extending toward side edges. Side members positioned between pairs of cross members provide additional torque resistance and energy storage for use in springing the board.

Abstract: A core assembly for a gliding board such as a ski or a snowboard. The core assembly includes a plurality of horizontal layers that are sized to various desired lengths, positioned to achieve a desired thickness profile, and laminated. A method of making a core assembly for a gliding board.

Abstract: A snow gliding board includes an upper protective layer and an internal mechanical structuring beam. The upper protective layer partially covers the internal beam, without significantly influencing the mechanical behavior defined by the internal beam while also including a visible skin, and a 3D visible decorative element which projects above the skin while being fixed in a cutout perforated in the visible skin.

Abstract: A ski, monoski, or snowboard includes a central longitudinal core (7). Variable width side walls (13a, 13b) are connected with sides of the core. Reinforcement layers (8a, 8b, 8c) are connected with upper and lower surfaces of the core and the side walls. A protection and decoration layer (9) is disposed on an upper surface and a sliding layer (10) including a sliding surface (S) and two edges (11a, 11b) are mounted on the lower surface. Each of the variable width side walls includes an inner wall element (13?a, 13?b) and an outer wall element (13?a, 13?b). At least one of the inner and outer wall elements is thicker in selected regions, such as a central, front, and rear region, to enhance the grip of the edges in the selected region.

Abstract: A window for installation in a sandwich composite beam, notably a ski, that consisting of a window body installed in the composite beam and a tab which forms a structural connection between the window body and the composite beam. The window body protects the composite beam core from moisture and maintains the structural integrity of the beam across the opening of the window. The structural window also provides a platform for an imaging system for measuring speed and displacement.

Abstract: The invention relates to a ski (2) or a snowboard in the form of a board-type gliding device (1), comprising a multi-layered gliding board body. A force-transmitting element (13) is supported on the top face (7) of the gliding board body, the top face of which is provided as a means of supporting a binding mechanism (3) for a connection to a sports shoe which can be released as and when necessary. The force-transmitting element (13) is of a plate-type design and extends across more than 50% of the length of the gliding board body. Within its longitudinal extension, the plate-type force-transmitting element (14) is supported in at least part-portions on the top face (7) of the gliding board body so as to transmit load and is connected to the gliding board body by means of a plurality of connecting zones (30) disposed in the longitudinal direction of the plate-type force-transmitting element (13).

Abstract: Construction and advantages of improved wavy composite structures made from wavy composite, unidirectional composites, and damping materials is revealed. By combining wavy composite laminae in various waveforms, offsets, angular orientations and material combinations, it is possible to provide axial, torsion, or shear properties equivalent to unidirectional materials but without the limitations related to fiber discontinuity, labor costs for fabrication, and weakness at seams where laminates overlap. By combining wavy composite layers with unidirectional crossplies, or by using woven mats with various fill fiber levels where the warp fibers are sinuously arranged, improved strength and damping is possible. Several examples of both wavy crossply laminates and unidirectional crossply laminates are analyzed and compared.

Abstract: The invention relates to a method for machining the running surfaces (9) of winter sports appliances such as skis or snowboards, in which a blank track (20) is subjected to a machining process in order to obtain a predetermined surface microstructure which improves the gliding ability. A precisely defined and reproducible surface structure of the track is achieved in such a way that the machining process for producing the surface microstructure comprises a plastic deformation by a tool (5, 5a) which is moved over a running surface (9) of the track blank (20) and is pressed with a predetermined force on the track blank (20) in order to deform the same in a plastic manner. The invention further relates to a winter sports appliance which is produced with such a method and an apparatus for performing the method.

Abstract: A protective top surface (6) for a board for gliding, which comprises at least one decorative component (10; 10?) passing through at least one slot or hole (7; 7?) in the protective top surface (6), comprising at least one lower part (11; 11?) arranged under the protective top surface (6) and at least one upper part (12) arranged above the protective top surface (6).

Abstract: An article of manufacture comprises a substrate which defines the shape of the article and which comprises a sliding surface adapted for sliding over the surface of snow or over ice or over water, which sliding surface is coated with an oxidation-resistant hydrocarbon wax coating which is long lasting and renders the sliding surface near super-hydrophobic and thus lowers the sliding drag of the sliding surface on snow, ice or water over which the substrate is adapted to be slid.

Abstract: The invention relates to a method of producing a top layer (10) constituting a layer (6) of a gliding device (1), which top layer (10) comprises an external face (18) and an internal face (24) directed towards a core (9) of the gliding device (1). The top layer (10) is provided with at least one hole (20) extending between the external face (18) and the internal face (24). Prior to making the hole (20) through the top layer (10), an adhesive layer (23) is applied to it on the internal face (24) facing away from the external face (18), at least in the region where the hole (20) is to be made, and the hole (20) is made jointly both through the top layer (10) and through the adhesive layer (23).

Abstract: A method of manufacturing a reinforced skateboard deck during the skateboard deck manufacturing process with adhering non-wood materials to the laminate ply's of wood with non-wood materials and the steps of adhering the non-wood material to the wood ply laminate for installation on the top wood laminate and or between any of the laminated layers of the skateboard deck during the normal laminating process and a method of manufacturing a skateboard deck during the skateboard deck manufacturing process with the installation and adhering of a strip or strip's of non-wood metallic material to a laminate ply of wood with the method comprising of the steps of adhering the non-wood metallic material to the wood ply laminate creating a center core cartridge with the non-wood metallic material installed for the installation during the normal skateboard deck laminating process.

Abstract: A skateboard deck comprises a top and bottom wood portion, each wood portion having at least one layer of wood. The skateboard deck further comprises a wood core positioned in between the top and bottom wood portions. The wood core has first and second opposed surfaces, at least one of the opposed surfaces having longitudinal grooves forming hollow areas in conjunction with the top and bottom wood portions. Each of the top and bottom wood portions further comprise a crossband layer having grain perpendicular in direction to the longitudinal grooves, each crossband layer being in contact with the wood core.