Ventilation ducting
AssigneeAcme Group Pty Ltd.
InventorAnthony C. Eagleton
Life of this patent
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Abstract
Ventilation ducting having a substantially oval and/or elliptical cross-section includes an intermediate section, and an end section at opposite ends of the intermediate section. Both the intermediate and the end sections include a pair of adjacent ducts. The ducts in the intermediate section are separated along their length by a common wall. The common wall may be perforated sheet, mesh or net material. The ducts at each end section are separate tubular members. An engaging device is provided at the intermediate section for suspending the ducting above the ground. A coupling device is provided at each end of the intermediate section for joining together adjacent lengths of the ventilation ducting.
Claims11
Ventilation ducting having a substantially oval and/or elliptical cross-section, said ducting comprising an intermediate section and an end section at each end of the intermediate section, said intermediate and end sections defining two ducts wherein the ducts in the intermediate section are separated along their length by a web extending between opposed sides of the intermediate section, the ducts at each end section being formed as separate tubular members, said ducting also having an engaging means provided along the intermediate section for engagement with a means for suspending and ducting above aground surface, and a coupling means provided around the ducting at the ends of the intermediate section, wherein said tubular members are capable of being retracted into the intermediate section to form a female end or extending beyond the end of the intermediate section to form a male end of the ducting.
Dependencies are inferred from the claim text.