Abstract: An immersion heater including an encapsulated, semi-conductive, heating element. The heating element may be a non-metallic, carbon-based material in the form of a monofilament, a yarn or bundle of semi-conductive fibers which may be twisted, braided fibers or yarns, or the like. The encapsulation may be in the form of a tube of one or more layers of encapsulation material(s) with the heating element inserted therein. Alternately, the heating element may be thermoplastic with semi-conductive carbon additive, and the heating element may be coated with one or more external layers of insulating encapsulation material(s). The encapsulation material may be a rubber or thermoplastic material with sufficient chemical resistance to be immersed in a reservoir of fluid subject to freezing or thickening at low temperatures, such as DEF. The heater may be thermoformed into a predetermined fixed shape.

Abstract: A heated fluid conduit comprising a fluid conduit having a body with a conductive material disposed therein, the conductive material comprising two conductors in adjacent relation, the conductive material comprising a woven material, a first crimp connector on the end of a conductor, and a second crimp connector on the end of the other conductor, and both crimp connectors on the same end of the body, the conductors electrically connected in series by a third crimp connector at the other end of the body conduit, means for coupling an electrical power supply to each conductor to provide a voltage across said conductors and an electrical current therethrough, heating said fluid conduit.

Abstract: A heated fluid conduit comprising a fluid conduit having a body with a conductive material disposed therein, the conductive material comprising two conductors in adjacent relation, the conductive material comprising a woven material, a first crimp connector on the end of a conductor, and a second crimp connector on the end of the other conductor, and both crimp connectors on the same end of the body, the conductors electrically connected in series by a third crimp connector at the other end of the body conduit, means for coupling an electrical power supply to each conductor to provide a voltage across said conductors and an electrical current therethrough, heating said fluid conduit.

Abstract: An immersion heater including an encapsulated, semi-conductive, heating element. The heating element may be a non-metallic, carbon-based material in the form of a monofilament, a yarn or bundle of semi-conductive fibers which may be twisted, braided fibers or yarns, or the like. The encapsulation may be in the form of a tube of one or more layers of encapsulation material(s) with the heating element inserted therein. Alternately, the heating element may be thermoplastic with semi-conductive carbon additive, and the heating element may be coated with one or more external layers of insulating encapsulation material(s). The encapsulation material may be a rubber or thermoplastic material with sufficient chemical resistance to be immersed in a reservoir of fluid subject to freezing or thickening at low temperatures, such as DEF. The heater may be thermoformed into a predetermined fixed shape.

Abstract: An integral hose anti-collapse rib comprises a unitary body having a first cantilevered portion curved in a first direction. This first cantilevered portion defines a first end. A second cantilevered portion is curved in a direction opposite the direction of the first cantilevered portion, in a direction facing the first cantilevered portion. The second cantilevered portion also defines a second end disposed at an opposite extent of the rib from the first end. The hose anti-collapse rib also comprises a locking mechanism that locks the first end of the rib to the second end of the rib, such that the first and second cantilevered portions together form a generally circular shape. Embodiments of locking mechanisms may include a button and orifice locking mechanism and/or a tab and channel locking mechanism. In a relaxed state in which the locking mechanism is not engaged, the rib preferably defines a non-circular, generally spiral shape.

Abstract: A heated fluid conduit has a body with a semi-conductive material disposed therein with an electrical power supply coupled to the conduit to provide a voltage across the conduit and a current therethrough, heating the fluid conduit. A fluid conduit heating system comprises a semiconductive sleeve disposed over a fluid conduit and an electrical power supply coupled to the ends of the sleeve to provide a voltage across the sleeve and a resulting current through the semiconductive sleeve, heating the sleeve and conduit Alternatively, one terminal of the electrical power supply is coupled to each end of the sleeve or conduit, and another terminal of the electrical power supply is coupled to the sleeve or conduit therebetween, to provide parallel heating circuits.

Abstract: A heated fluid conduit has a body with a semi-conductive material disposed therein with an electrical power supply coupled to the conduit to provide a voltage across the conduit and a current therethrough, heating the fluid conduit. A fluid conduit heating system comprises a semiconductive sleeve disposed over a fluid conduit and an electrical power supply coupled to the ends of the sleeve to provide a voltage across the sleeve and a resulting current through the semiconductive sleeve, heating the sleeve and conduit Alternatively, one terminal of the electrical power supply is coupled to each end of the sleeve or conduit, and another terminal of the electrical power supply is coupled to the sleeve or conduit therebetween, to provide parallel heating circuits.

Abstract: A fluid conduit body having a semi-conductive material disposed therein and at least one wire coupling an electrical power supply to the conduit to provide an electrical current therethrough to heat the fluid conduit also has an end cover molded over a fitting fitted to an end of the conduit and over an end of the wire coupling the power supply to an end of the conduit. Alternatively, a fluid conduit heating system employs a semi-conductive sleeve disposed over a fluid conduit with the sleeve extending at least partially over a fitting fitted to an end of the conduit. An electrical power supply is coupled to each end of the sleeve to provide an electrical current through the semi-conductive sleeve to heat the sleeve and the fluid conduit. An end cover is molded over at least a portion of the fitting and the sleeve extending thereover.

Abstract: A fluid conduit body having a semi-conductive material disposed therein and at least one wire coupling an electrical power supply to the conduit to provide an electrical current therethrough to heat the fluid conduit also has an end cover molded over a fitting fitted to an end of the conduit and over an end of the wire coupling the power supply to an end of the conduit. Alternatively, a fluid conduit heating system employs a semi-conductive sleeve disposed over a fluid conduit with the sleeve extending at least partially over a fitting fitted to an end of the conduit. An electrical power supply is coupled to each end of the sleeve to provide an electrical current through the semi-conductive sleeve to heat the sleeve and the fluid conduit. An end cover is molded over at least a portion of the fitting and the sleeve extending thereover.

Abstract: A heated fluid conduit has a body with a semi-conductive material disposed therein with an electrical power supply coupled to the conduit to provide a voltage across the conduit and a current therethrough, heating the fluid conduit. A fluid conduit heating system comprises a semiconductive sleeve disposed over a fluid conduit and an electrical power supply coupled to the ends of the sleeve to provide a voltage across the sleeve and a resulting current through the semiconductive sleeve, heating the sleeve and conduit Alternatively, one terminal of the electrical power supply is coupled to each end of the sleeve or conduit, and another terminal of the electrical power supply is coupled to the sleeve or conduit therebetween, to provide parallel heating circuits.

Abstract: An integral hose anti-collapse rib comprises a unitary body having a first cantilevered portion curved in a first direction. This first cantilevered portion defines a first end. A second cantilevered portion is curved in a direction opposite the direction of the first cantilevered portion, in a direction facing the first cantilevered portion. The second cantilevered portion also defines a second end disposed at an opposite extent of the rib from the first end. The hose anti-collapse rib also comprises a locking mechanism that locks the first end of the rib to the second end of the rib, such that the first and second cantilevered portions together form a generally circular shape. Embodiments of locking mechanisms may include a button and orifice locking mechanism and/or a tab and channel locking mechanism. In a relaxed state in which the locking mechanism is not engaged, the rib preferably defines a non-circular, generally spiral shape.