A vehicle tire includes a selectively actuated stud deployment system for increased traction. The studs are contained in cells in the surface of the tire and forced to deploy by pneumatic or fluid pressure. When the pressure is released, the studs retract.
B60C 23/12 - Agencement de pompes de gonflage montées sur les véhicules actionnées par une roue qui tourne
B60C 23/00 - Dispositifs pour mesurer, signaler, commander ou distribuer la pression ou la température des pneumatiques, spécialement adaptés pour être montés sur des véhicules; Agencement sur les véhicules des dispositifs de gonflage des pneumatiques, p.ex. des pompes ou des réservoirs; Aménagements pour refroidir les pneumatiques
B60C 11/00 - Bandes de roulement des pneumatiques; Sculptures des bandes de roulement; Pièces rapportées antidérapantes
B29D 30/66 - Moulage des chapes sur les carcasses de pneumatiques, p.ex. chapes antidérapantes avec des pointes
B60C 13/00 - Flancs du pneumatique; Protection, décoration, marquage ou opérations similaires concernant ces derniers
B29D 30/06 - Pneumatiques ou leurs parties constitutives
B60C 11/16 - Eléments rapportés antidérapants, p.ex. vulcanisés dans la bande de roulement en forme de chevilles, p.ex. en métal ou en textile
In one representative embodiment, a tire comprises an inner shell having a hollow interior space, an outer shell disposed radially outward from the inner shell, and at least one pump assembly disposed adjacent to the inner shell and having a compressible tube portion, wherein the tube portion of the pump assembly is configured to expand radially outwardly beyond the outer shell and to compress radially inwardly, and wherein the pump assembly is configured to direct a fluid from the tube portion of the pump assembly to the interior space of the inner shell.
B60C 23/12 - Agencement de pompes de gonflage montées sur les véhicules actionnées par une roue qui tourne
B60C 11/16 - Eléments rapportés antidérapants, p.ex. vulcanisés dans la bande de roulement en forme de chevilles, p.ex. en métal ou en textile
B60C 23/00 - Dispositifs pour mesurer, signaler, commander ou distribuer la pression ou la température des pneumatiques, spécialement adaptés pour être montés sur des véhicules; Agencement sur les véhicules des dispositifs de gonflage des pneumatiques, p.ex. des pompes ou des réservoirs; Aménagements pour refroidir les pneumatiques
B60C 23/04 - Dispositifs avertisseurs actionnés par la pression du pneumatique montés sur la roue ou le pneumatique
An all-weather tire includes features that enhance safety and usability in a variety of driving conditions as well as some manufacturing processes that may be used during the production and provides an all-weather tire having selectively deployable and retractable studs for greater traction when needed. The tire includes a toroidal shell enclosing an air-filled chamber and a plurality of stud actuation chambers contained within the shell for selectively deploying studs to extend past the tire's outer radial surface for engaging a roadway or surface. The studs may be retracted when no longer needed. A mechanical pump assembly or plurality of such assemblies powered by compression of the tire engaging the roadway may be used as a power source for generating pneumatic pressure and an internal valve assembly or assemblies may be used to route the pneumatic pressure appropriately. The pump and valve assemblies may be controlled either mechanically or electrically.
A vehicle tire includes a selectively actuated stud deployment system for increased traction. The studs are contained in cells in the surface of the tire and forced to deploy by pneumatic or fluid pressure. When the pressure is released, the studs retract.
A firearm based breeching tool uses the expansion gases of a blank high capacity firearm round to fire a piston at a breeching chisel, the chisel having a cutting head that is designed to breech a hardened obstacle. The invention is based on an assault rifle configuration that is modified to use the pump action of a shotgun to replenish a round of ammunition into the firing chamber and otherwise reset the device including the firing piston and the standard trigger mechanism.
The present invention provides improved methods for the synthesis of polypeptide or peptide-linked compounds via a NCA-based polymerization reaction that produces high product yields in much less time. Such improved methods are achieved by application of a higher temperature and/or reduced pressure to the reaction such that an NCA-containing monomer melts.
