Abstract:
This invention is a method of filling a tire with a composite-foam to eliminate rapid deflation "blow-outs" and for all practical purposes, eliminate flats. The composite-foam tire filling is comprised of a multiplicity of preconstructed, hollow, pressurized, elastomeric, one-piece, seamless cells bonded together into a configuration whereby substantially all of the exterior cell wall surface of all cells in the composite-foam tire filling, is engaged with portions of exterior cell wall surfaces of surrounding cells. This composite-foam mass is placed inside a tire to provide the tire with a composite-foam filled interior.
Abstract:
A sheet member is transported over a knife anvil by a feed conveyor movable from a first position adjacent the knife anvil to a second position overlapping the knife anvil. The feed conveyor has a moving belt which is driven in a forward direction for transporting the sheet member over the anvil and to a takeaway conveyor. The belt is driven in an opposite direction to pull the cut leading edge of the sheet material away from the end of the feed conveyor after cutting of the sheet material and during movement of the feed conveyor to the overlapping position over the anvil. A rotary knife is moved along the knife anvil and is mounted for rocking of the knife in a direction opposite to the direction of travel of the knife to provide a positive shear point.
Abstract:
Inner tubes for pneumatic tires including a toric cushion made from an elastomer material having cells independent of each other.A process for manufacturing such inner tubes with a mold for preforming and vulcanizing semi-toric elements, the mold includes fingers for molding recessed cavities and an incorporated heating network, the preformed semi-toric elements having undergone a first vulcanization are then joined together and subjected to a second vulcanization in an appropriate apparatus.
Abstract:
This disclosure relates to a sealant material to be primarily used in pneumatic tires to seal punctures made by external objects, such as nails. The sealant may be in a single layer or a laminate of sealant layer and covered layers. The sealant layer contains a material that is at least partially degraded by irradiation or heat in the presence of a peroxide. The laminate may be in sheet or strip form with various cross-sectional shapes. The layers in the laminate comprise rubber compounds, some of which may contain agents which either assist or retard cure by irradiation so that the layers will have different physical characteristics during the manufacture of end products containing the laminate. The laminate may be cured by any known method, either irradiation or thermal, after its assembly into the final product.
Abstract:
A tire, which can be solid or pneumatic, which has an elastomeric tread portion, an inextensible annular reinforcing structure beneath the tread and a hoop of rubber inwardly of the reinforcing structure. The hoop of rubber is held in a state of compression in the unloaded and, if the tire is pneumatic, uninflated state of the tire by the annular reinforcing structure.
Abstract:
A pneumatic tire with both a sealing action and an anti-burst action is disclosed. The tire has an inflatable structure made of an elastic foam material having prevailingly closed cells in the form of an annular band below the tread band of the casing with a width at least equal to the width of the tread band and means preventing the flow of tire air out of the area between the outer surface of the annular band and the casing inner surface corresponding thereto. The tire can be radial if desired.
Abstract:
A method of filling a tire on a vehicle wheel with polyurethane foam comprises fitting the tire to the rim injecting liquid ingredient materials for the foam through an inlet opening in the rim closing the inlet opening revolving the wheel about a vertical axis to distribute the ingredients around the interior of the tire and when foam begins to escape through an outlet which is diametrically opposite to the inlet opening, closing a shut off valve at said outlet to prevent escape of further foam.
Abstract:
This invention provides means, including a platform and means to support same for oscillatory, vibratory motion so that a large size vehicle tire containing dry ballast may be disposed on the platform and thus moved and vibrated whereby an eductor tube connected outwardly to a solids removal pump may have its inner end insertable into the tire to follow the descending level of granular ballast therein to substantially the bottom of the tire, as the platform is supported (a) to move up and down but continuously parallel to the base, (b) or preferably with spring urged, modulatory motion, whereby the upper surface of the ballast is maintained substantially level in descent.
Abstract:
A REINFORCED MICROPOROUS SHEET IS FORMED BY DISTRIBUTING FIBERS AND BLOWING AGENT IN A SOFTENED ELASTOMERIC OR THERMOPLASTIC MATERIAL, FORMING A SHEET OF MATEIAL HAVING UNIDIRECTIONALLY ORIENTED FIBERS, LAMINATING TWO OR MORE SHEETS SUCH THAT THE FIBERS IN EACH SHEET ARE AT AN ANGLE TO THOSE IN ADJACENT SHEET(S), AND FOAMING DURING OR SUBSEQUENT TO THE PREPARATION OF THE SHEET OR LAMINATE.