Abstract: An extruded multilayer seal member having an expanded temperature range and an improved compression set resistance wherein the seal member comprises a first fluoroelastomer as the inner layer of the multilayer seal member and a second elastomer as the outer layer of the multilayer seal member; and a method for manufacturing the multilayer seal member which comprises extruding a multilayer tubular structure, crosslinking the extruded multilayer tubular structure on a mandrel, cutting the multilayer tubular structure to provide a plurality of uniform seal members and recovering the seal members, are described.

Abstract: A method of manufacturing a cured, non-reinforced hose exhibiting one or more desirable configuration features molded onto the outer surface of the hose; and a cured, non-reinforced hose exhibiting such desirable configuration features molded on the outer surface thereof, manufactured in accordance with such method are described.

Abstract: An extruded seal member having a corrugated axial surface exhibiting alternating peaks and valleys extending longitudinally along the axial surface of the seal member; a method for manufacturing the seal member which comprises extruding a tubular structure having a corrugated axial surface, crosslinking the extrude tubular structure, cutting the tubular structure to provide a plurality of uniform seal members and recovering the seal members; and a method of using such multilayer seal members, are described.

Abstract: An extruded multilayer seal member having an expanded temperature range and an improved compression set resistance wherein the seal member comprises a first fluoroelastomer as the inner layer of the multilayer seal member and a second elastomer as the outer layer of the multilayer seal member; and a method for manufacturing the multilayer seal member which comprises extruding a multilayer tubular structure, crosslinking the extruded multilayer tubular structure on a mandrel, cutting the multilayer tubular structure to provide a plurality of uniform seal members and recovering the seal members, are described.

Abstract: An extruded multilayer seal member having an expanded temperature range and an improved compression set resistance wherein the seal member comprises a first fluoroelastomer as the inner layer of the multilayer seal member and a second elastomer as the outer layer of the multilayer seal member; and a method for manufacturing the multilayer seal member which comprises extruding a multilayer tubular structure, crosslinking the extruded multilayer tubular structure on a mandrel, cutting the multilayer tubular structure to provide a plurality of uniform seal members and recovering the seal members, are described.

Abstract: A tubular structure having reduced fuel permeation for use in fuel filler and fuel vent hose applications, herein the tubular structure comprises a fluoropolymer inner layer and a chloropolyethylene, chlorosulfonated polyethylene or epichlorohydrin cover layer is described. The tubular structure optionally includes a chlorinated polyethylene backing layer, one or more polyamine adhesive layers and a reinforcement layer.

Abstract: A fuel feed hose and a fuel vapor line hose having reduced fuel permeation comprises a conductive FKM inner tubular structure and a chlorinated polyethylene backing layer. The hose optionally contains an adhesive layer between the conductive FKM inner layer and the chlorinated polyethylene backing layer. Furthermore, the hose optionally contains a reinforcement member and a cover over the reinforcement member. A method of forming such tubular structures is also included.

Abstract: A tubular structure having reduced fuel permeation for use in fuel filler and fuel vent hose application, wherein the tubular structure comprises a nitrile or a chlorinated polyethylene inner layer, a tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride terpolymer barrier layer on the nitrile or chlorinated polyethylene inner layer, and a chlorinated polyethylene outer cover layer, and a method of forming such tubular structures are described. The tubular structure optionally includes a chlorinated polyethylene backing layer, one or more polyamide adhesive layers, and a reinforcement layer.

Abstract: A fuel filler and fuel vent hose having reduced fuel permeation, comprises an elastomeric inner layer, a fluoropolymer barrier layer formed from tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride terpolymer; tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride-perfluorovinyl ether quadpolymer; or blends of two or more tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymers or terpolymers on the elastomeric inner layer, and a chlorinated polyethylene backing layer. Optionally, the fuel filler and fuel vent hose include an adhesive layer between the fluoropolymer barrier layer, and the chlorinated polyethylene backing layer, and an optional reinforcement layer as well as an additional outer cover layer. A method of forming such tubular structures is also included.

Abstract: A method of manufacturing a cured, non-reinforced hose exhibiting one or more desirable configuration features molded onto the outer surface of the hose; and a cured, non-reinforced hose exhibiting such desirable configuration features molded on the outer surface thereof, manufactured in accordance with such method are described.

Abstract: An extruded seal member having a corrugated axial surface exhibiting alternating peaks and valleys extending longitudinally along the axial surface of the seal member; a method for manufacturing the seal member which comprises extruding a tubular structure having a corrugated axial surface, crosslinking the extrude tubular structure, cutting the tubular structure to provide a plurality of uniform seal members and recovering the seal members; and a method of using such multilayer seal members, are described.

Abstract: An extruded multilayer seal member having an expanded temperature range and an improved compression set resistance wherein the seal member comprises a first fluoroelastomer as the inner layer of the multilayer seal member and a second elastomer as the outer layer of the multilayer seal member; and a method for manufacturing the multilayer seal member which comprises extruding a multilayer tubular structure, crosslinking the extruded multilayer tubular structure on a mandrel, cutting the multilayer tubular structure to provide a plurality of uniform seal members and recovering the seal members, are described.

Abstract: An adjustable apparatus for sizing objects, mainly delicate foods, by the rotation of a set of at least 7 rollers, each roller having one less tooth so that the rollers move at progressively higher revolutions per minute, from the in-feed shear roller of 144 revolutions per minute to the discharge roller of 210 revolutions per minute. The rollers are shaped and finished by 7 to 12 flats, alternated with a crown in between each flat, cut the horizontal length of the roller. The rollers are then sandblasted over the entire circumference of the surface to a depth range of 280 to 300 micro-inches.

Abstract: A method for manufacturing a multilayer hose having reduced permeation of hydrocarbon fuel vapor, wherein the multilayer hose is useful as a hydrocarbon fuel transport hose, comprises the steps of: extruding a first fluoroelastomeric tubular structure having an inner surface and an outer surface; applying an adhesive on the outer surface of the first fluoroelastomeric tubular structure, wherein the adhesive is applied to the outer surface of the first fluoroelastomeric tubular structure using piezo electric technology comprising a piezo element disposed in an adhesive reservoir positioned at an exit end of an extruder for extruding the first fluoroelastomeric tubular structure.

Abstract: A method of forming a gas impermeable joint in a fluid system includes: providing a tube having a metallic barrier layer disposed between an inner plastic layer and an outer plastic layer; forcing at least one of the inner plastic layer and the outer plastic layer into contact with a plastic surface of a component; and welding the at least one of the inner plastic layer and the outer plastic layer with the plastic surface to form the gas impermeable joint. The welding may include: spin welding, hot plate welding, vibration welding, and ultrasonic welding. The metallic barrier layer extends substantially to the component, thus improving the gas impermeability of the joint between the tube and the component.

Abstract: A fuel transport tube having improved fuel vapor permeation characteristics comprising an inner conductive nylon tubular structure containing a conductive agent selected from the group consisting of carbon fibers and carbon fibrils; an aluminum barrier layer on the outside surface of the nylon inner tubular layer; and a non-conductive nylon layer on the outer surface of the aluminum layer; and a method for making the fuel transport tube are disclosed.