Abstract: The invention concerns a self-contained perfusion device comprising means for fixing an infusion bag under pressure between a fixed plate and a mobile plate driven by an elastic mechanism, the lower plate (8) is fixed in the vertical direction, while the upper plate (14) is mobile in the vertical direction under the action of the elastic mechanism (15). At least one opening (7) is provided in at least a side wall (5) of the device for inserting an infusion bag (9) between the two plates (8, 14). The elastic mechanism (15) is provided with independent means for controlling and locking the plates (8, 14), and means (24, 25) are provided for unlocking the elastic mechanism (15) after the infusion bag (9) has been loaded. The lower plate (8) can be horizontally mobile like a slide. Means are further provided for controlling the emptying of the bag during perfusion.

Abstract: The coupling includes a peripheral locking gasket for the pipe, the gasket being elastically deformable from a state in which it has a nominal inside diameter; an outer clamping ring placed on the end of the pipework element and surrounding the gasket; and a mechanism for thrusting the clamping ring axially towards the pipework element. The coupling has a spacer for holding the gasket spaced apart with an inside diameter greater than its nominal diameter before the pipe is put into place, the spacer being releasable once the pipe is in place.

Abstract: A reinforcement for a boot, in particular a sports boot, more particularly a cross-country ski boot. The boot reinforcement makes it possible to improve the torsional stiffness, efficiency, durability, lightness, cost, foot protection, and industrial workability. To achieve this goal, the boot reinforcement according to the invention includes a front zone A from the front end up to the beginning of the plantar arch, a median zone B corresponding to the plantar arch, a rear zone C. The reinforcement includes, at least in the zones B and C, at least one “sandwich” structure constituted by at least one core inserted between at least two layers, and, in the zone A, it is flexible in a substantially longitudinal direction and torsionally stiff. The layers of the sandwich structure are made of composite, carbon fibers/polymeric resin, whereas the core of this sandwich structure is made of synthetic foam, wood or honeycomb.

Abstract: The coupling comprises:

Abstract: The invention relates to a structural subassembly provided to produce an aquatic gliding board.

Abstract: A laminated composite material that can be used in particular to make sports articles, especially boots. A new basis material is disclosed for making articles of manufacture, in particular sports articles, which have drastic mechanical requirements, are very inexpensive and as lightweight as possible.

Abstract: A golf club shaft having a hollow body comprised of a fiber and resin composite and a tube-shaped stiffener substantially surrounding a lower portion of the body which comprises a material other than a fiber and resin composite. The stiffener is preferably a metal and comprises a pre-formed sheath.

Abstract: An improved apparatus for manufacturing a reinforced golf club shaft having a complex shape. An inflatable bladder is positioned over a mandrel having a simple shape. Layers of fiber material are then rolled over inflatable bladder to produce a sub-assembly. The sub-assembly is placed in a mold defining a negative of the shape of the final shaft that is to be produced. The impression may have enlarged or narrowed regions for producing irregularities in the shape of the shaft. The bladder is expanded within the mold so that the composite structure is radially displaced and compressed between the bladder and the mold. The inflatable bladder has a variable thickness that conforms to the shape of the impression so that the composite structure undergoes a uniform and minimum displacement along its entire length, which improves the mechanical properties of the final shaft.

Abstract: A golf ball consisting of a multi-piece cover surrounding a core. The cover consists of a multi-sheet structure which includes at least three thin layers of thermoplastic with each layer having a thickness of no more than 0.030 inches. The hardness of the multi-sheet structure varies between adjacent layers so that the reaction of the ball varies depending upon the amount of deformation of the ball upon impact with a golf club. The method of manufacturing a golf ball includes producing a cover from a multi-layer member, with at least one layer having a thickness of no more than 0.030 inches.

Abstract: A solid golf ball having a core, a cover, an intermediate skin between the core and the cover defining a generally continuous inner annular surface, wherein the inner annular surface of the skin is stretched over the core. Desirably, to prevent breakage, the annular surface is at least 1/4 inch wide. Preferably, the skin has a substantially uniform thickness and covers substantially the entire outer surface of the core so that the golf ball will react in a uniform manner regardless of where on the cover the ball is struck. The skin preferably comprises a polymeric material which is stretched so as to have a predetermined amount of initial strain so as to reach a certain level of crystallization of material. This predetermined amount of initial strain is desirably 150%, preferably 200% and, most preferably 400%. A method of manufacturing a golf ball having a stretched intermediate skin is also disclosed.

Abstract: Process of manufacturing a golf club shaft made of composite materials, including the successive steps of fitting a tubular, flexible impermeable bladder around a rigid mandrel, dressing the mandrel with a composite structure including fibers impregnated with a synthetic resin matrix, placing the mandrel in the mold, and then carrying out a molding operation by applying at least one internal pressure exerted by feeding a fluid inside the bladder.

Abstract: A solid golf ball having a core, a covers an intermediate layer between the core and the cover formed of a soft elastomeric material. Preferably, the layer has a thickness of 0.1-1.3 mm and is formed by dipping the core into a liquid dispersion latex having a cured hardness between 40 and 100 Shore A. The ball provides improved feel and controllability which can be varied by varying the characteristics of the intermediate layer.

Abstract: The invention relates to a process for decorating a composite article including the preparation of a decorated complex to be assembled with a reinforcement structure of the article made of a resin, that is capable of flowing when heated, during a subsequent cycle of hot pressing, wherein it includes a first cycle, during which the transfer of a decoration is undertaken using the method for imprinting sublimate ink(s) on the first surface of a layer made of a transparent or translucent plastic material; and a second cycle during which one undertakes, by means of an adhesion film, the hot or press assembly, on the first surface thus decorated, of a contrast sheet made out of a material selected from the group constituted by the non-anodized aluminum, the synthetic dry fiber, wood. The invention enables the decorative patterns to be developed by means of varied and very attractive backgrounds effects, such as woven, metallized or grained backgrounds, depending upon the type of contrast sheet used.

Abstract: Process for manufacturing a golf club shaft made of composite materials, including the successive steps of fitting a tubular, flexible impermeable bladder around a rigid mandrel whose length is at least equal to the length of the shaft to be produced, dressing the mandrel with a composite structure comprising fibers impregnated with a synthetic resin matrix, placing the mandrel in the mold, and then carrying out a mold operation by applying at least one internal pressure exerted by feeding a fluid inside the bladder.

Abstract: A locking insert 4 for joining the male and female ends of spheroidal-graphite cast-iron pipes conveying fluids under pressure has a generally planar shape, and includes at least two metal parts 4A, 4B fixed to each other by an electrically insulating junction layer 4C.

Abstract: A manufacturing method of a ski which includes a first preparation step of a solid core made of synthetic foam and a second assembly step of the core with the various component elements of the ski. The first step includes injecting or pouring in a mold having the final shape of the core to be obtained, the components of a hardenable and expandable foam and during which a solid adhesive film having good adhesive properties with the foam as well as with the elements adapted to enter into contact during the second assembly step, is located against the walls of the mold.

Abstract: A socket joint for pressurized fluid carrying pipes incorporates a radially-compressed gasket 4 locked in position by toothed inserts 12 each having an inclined face 27 which slides on and bears against a similarly inclined face 26 of a support insert 11 embedded in the anchoring heel 14 of the gasket which is seated in the anchoring throat 7 of the socket.