A method of making laminate foam material is provided. The laminate foam material includes a layer of non-foam material sandwiched between two layers of foam material. The non-foam material is bonded to the foam material, such as with a bonding agent and/or by heating respective surfaces of the foam material until the surface softens or melts. When a heating process is utilized, the non-foam material is pressed against the softened or melted foam material. As the foam material begins to cool, the non-foam material becomes bonded to the foam material. The non-foam material is narrower than the foam material and is positioned relative to the foam material such that the edges of the non-foam material are concealed by the foam material. Foam products, such as foam mats, can be formed from the laminate foam material by cutting across the width of the foam material.
B32B 37/06 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par le procédé de chauffage
B32B 5/18 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par le fait qu'une des couches contient un matériau sous forme de mousse ou essentiellement poreux
B32B 3/02 - Caractérisés par des caractéristiques de forme en des endroits déterminés, p. ex. au voisinage des bords
B32B 37/10 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par la technique de pressage, p. ex. faisant usage de l'action directe du vide ou d'un fluide sous pression
B29C 65/00 - Assemblage d'éléments préformésAppareils à cet effet
B32B 37/04 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par la fusion partielle d'au moins une couche
B29C 65/10 - Assemblage d'éléments préformésAppareils à cet effet par chauffage, avec ou sans pressage avec des gaz chauds
B32B 37/20 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par les propriétés des couches toutes les couches existant et présentant une cohésion avant la stratification impliquant uniquement l'assemblage de bandes continues
B63B 34/50 - Dispositifs de flottabilité pour soutien du corps, p. ex. bateaux de baignade ou cycles nautiques
floats for recreational use, namely, foam floats, personal floats, lake pad floats; swimming floats; action skill games; floating game table; water toys
An apparatus and method for heating a material are disclosed. The apparatus includes one or more magnetron assemblies positioned on each of opposing sides of a heating region. The magnetron assemblies positioned on one side of the heating region generate overlapping microwaves that propagate in a first direction through the material, and the magnetron assemblies positioned on the other side of the heating region generate overlapping microwaves that propagate in a second direction through the material. The overlapping microwaves provide a total wave voltage that is substantially constant across the material resulting in substantially even heating of the material.
B29C 35/00 - Chauffage, refroidissement ou durcissement, p. ex. réticulation ou vulcanisationAppareils à cet effet
B29C 35/08 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation utilisant l'énergie ondulatoire ou un rayonnement corpusculaire
H05B 6/78 - Dispositions pour le mouvement continu du matériau
B29C 35/10 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation utilisant l'énergie ondulatoire ou un rayonnement corpusculaire pour fabriquer des objets de longueur indéfinie
B29K 21/00 - Utilisation de caoutchouc non spécifié ou élastomères non spécifiés comme matière de moulage
An apparatus and method for heating a material are disclosed. The apparatus includes one or more magnetron assemblies positioned on each of opposing sides of a heating region. The magnetron assemblies positioned on one side of the heating region generate overlapping microwaves that propagate in a first direction through the material, and the magnetron assemblies positioned on the other side of the heating region generate overlapping microwaves that propagate in a second direction through the material. The overlapping microwaves provide a total wave voltage that is substantially constant across the material resulting in substantially even heating of the material.
A system and method for molding complex three-dimensional articles is disclosed. The system includes a mold for receiving an article made of at least one moldable material and, in one example, the article comprises at least one flat region and at least one radial region. The mold comprises an inner bladder that conforms to an inner surface of the article when pressurized and an outer mold that contacts an outer surface of the article. The system also includes an inner electrode spaced from an outer electrode, and a generator operable to generate an alternating electric field between the electrodes and across the article in the mold to obtain substantially even heating of the moldable material in the flat region and the radial region at the end of the heating cycle.
B60C 9/20 - Structure ou disposition des ceintures, des couches de protection, des couronnes de renforcement ou des couches amortissantes constituées par des nappes gommées ayant chacune leurs fils disposés sensiblement en parallèle
B60C 3/04 - Pneumatiques caractérisés par leur section transversale caractérisés par les dimensions relatives de la section, p. ex. par un profil bas
13.
System and method for molding complex three-dimensional articles
A system and method for molding complex three-dimensional articles is disclosed. The system includes a mold for receiving an article made of at least one moldable material and, in one example, the article comprises at least one flat region and at least one radial region. The mold comprises an inner bladder that conforms to an inner surface of the article when pressurized and an outer mold that contacts an outer surface of the article. The system also includes an inner electrode spaced from an outer electrode, and a generator operable to generate an alternating electric field between the electrodes and across the article in the mold to obtain substantially even heating of the moldable material in the flat region and the radial region at the end of the heating cycle.
The present invention is directed to a thermoelectric device that includes a plurality of thermoelectric couples positioned between a top plate and a bottom plate, wherein each thermoelectric couple comprises n-type and p-type element assemblies electrically connected in series and thermally connected in parallel. When the device is used for electrical power generation, the efficiency is increased by using semiconductor materials with a high Seebeck coefficient, increasing the distance between the n-type and p-type element assemblies, increasing the length of the electrical conductors/thermal distance between the top and bottom plates, and/or using an insulation plate spaced from the top plate. When the device is used for heating/cooling, the coefficients of performance are increased by using semiconductor materials with a high Seebeck coefficient and/or optimizing the length of the electrical conductors/thermal distance between the top and bottom plates.
H01L 35/28 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails fonctionnant exclusivement par effet Peltier ou effet Seebeck
H01L 35/30 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails fonctionnant exclusivement par effet Peltier ou effet Seebeck caractérisés par les moyens d'échange de chaleur à la jonction
H01L 35/32 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails fonctionnant exclusivement par effet Peltier ou effet Seebeck caractérisés par la structure ou la configuration de la cellule ou du thermocouple constituant le dispositif
18.
ROTARY ENGINE HAVING TWO ROTORS WITH INTERSECTING PATHWAYS
An engine including a block that has first and second intersecting pathways, and first and second rotors positioned within the first and second pathways, respectively. The first and second rotors are moveable within the first and second pathways, respectively, between first and second combustion positions. A first combustion chamber is formed within the first pathway between the first and second rotors when they are in the first combustion position, and a second combustion chamber is formed within the second pathway between the first and second rotors when they are in the second combustion position. The pathways and rotors are preferably torus shaped, and the rotors preferably have concave leading and trailing ends. The engine block preferably has a single intake for both of the first and second combustion chambers. Recesses are preferably formed in the block to receive seals that engage the rotors.
A devulcanization apparatus for devulcanizing a plurality of cross-linked elastomer particles. The apparatus includes a first conveyor functioning as a high voltage electrode and a second conveyor functioning as a ground electrode. A generator is operable to apply an alternating electric field between the first and second conveyors. A devulcanization region is provided between the first and second conveyors in which the cross-linked elastomer particles are placed.
B01J 19/08 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage
C08J 11/10 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation
A process for forming a vulcanized elastomer composition. An alternating electric field is applied to a first composition comprising vulcanized crosslinked elastomer particles while the composition is compressed to thereby devulcanize the crosslinked elastomer particles and form a second composition comprising devulcanized elastomer particles A crosslinking agent is added to the second composition comprising the devulcanized elastomer particles. The second composition having the crosslinking agent is then vulcanized to form the vulcanized elastomer composition.
A game ball, such as a soccer ball, having a cover comprised of one or more cover panel blanks and one or more reinforcement material blanks, is provided. The cover panel blanks and reinforcement material blanks are heat bonded together so that the free edges and interior panel boundaries of the cover panel blanks are aligned with the reinforcement material blanks.
A process for devulcanizing crosslinked elastomer particles comprising applying an alternating electric field to a composition comprising crosslinked elastomer particles under compression. The alternating electric field preferably has a frequency between 1 and 100 MHz and a voltage between 1000 and 10,000 V, and may be applied between an apparatus that continuously conveys the particles through the field.
A composite foam product comprising a foam core surrounded by a gas-impermeable film. The gas-impermeable film retains the gas formed from the blowing agent so that the pressure inside the foam core is above ambient pressures.
B29C 44/10 - Application de contre-pression pendant l'expansion
B32B 5/18 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par le fait qu'une des couches contient un matériau sous forme de mousse ou essentiellement poreux
B32B 5/20 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par le fait qu'une des couches contient un matériau sous forme de mousse ou essentiellement poreux la structure sous forme de mousse étant réalisée sur place
B29C 44/56 - Post-traitement d'objets, p. ex. pour changer leur forme
B29C 65/48 - Assemblage d'éléments préformésAppareils à cet effet en utilisant des adhésifs
B32B 27/06 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
A process for devulcanizing crosslinked elastomer particles comprising applying an alternating radio frequency dielectric field to a composition comprising crosslinked elastomer particles. The alternating radio frequency dielectric field preferably has a frequency between 1 and 100 MHz and a voltage between 1000 and 10,000 V.
A method of forming a hardened skin on one or more surfaces of a molded article. In an exemplary method, a formable material is mixed with a blowing agent to form a foam material. The foam material is placed in a flow molding apparatus such that a first surface of the foam material is in contact with a first mold section and a second surface of the foam material is in contact with a second mold section. In operation, an alternating dielectric field is applied across the foam material to form the molded article. At the end of the molding cycle, the first and/or second surfaces of the foam material remain under the decomposition temperature of the blowing agent and are not blown so as to form one or more thicknesses of hardened skin on the molded article.
A flow molding apparatus with multiple layers of molds and electrodes is disclosed. In an exemplary embodiment, the apparatus includes top and bottom electrodes with an intermediate electrode positioned therebetween. A first mold is disposed between the top electrode and the intermediate electrode, and a second mold is disposed between the bottom electrode and the intermediate electrode. Preferably, a plurality of metallic locking fixtures are attached to the top and bottom electrodes for securing the apparatus in a closed position. An electromagnetic energy source is operably connected to the electrodes such that the top and bottom electrodes are grounded and the intermediate electrode carries a high voltage. As such, an alternating electric field may be established across each of the first and second molds during a heating cycle.
B29C 43/04 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en utilisant des moules mobiles
