초록 ▼

A complete plastic HVAC system assembled using individual plastic components for ensuring the efficient and quiet distribution of air from a central air unit to multiple distribution points and preventing heating and cooling losses, the need for installers to stock multiple sized and shaped componen

A complete plastic HVAC system assembled using individual plastic components for ensuring the efficient and quiet distribution of air from a central air unit to multiple distribution points and preventing heating and cooling losses, the need for installers to stock multiple sized and shaped components, the accumulation of dust, dirt and pollens during storing, installing and use on the surfaces of the individual components. The fittings have a collar sizable to fit both 6 and 7-inch pipe, whether flexible or rigid. The use of plastic fittings, duct and pipe removes the potential of injury commonly associated with conventional metal ductwork, while providing seamless components that can be configured for any type of installation and insure an air tight connection between adjoining surfaces. The individual fittings include a register boot, torpedo boot, straight boot, rigid and flexible pipe and couplers, straight and 90-degree takeoffs, a plastic duct and duct end cap.

대표청구항 ▼

What is claimed is: 1. A system for distribution of air from a central air unit to multiple distribution points using complimentary components comprising: (a) a boot having a unitary body defining an air pathway between a first and a second opening, wherein the first opening is substantially circul

What is claimed is: 1. A system for distribution of air from a central air unit to multiple distribution points using complimentary components comprising: (a) a boot having a unitary body defining an air pathway between a first and a second opening, wherein the first opening is substantially circular and the second opening is substantially rectangle for connection to a register, the unitary body further comprises a first collar of a first diameter operatively connected to a second collar of a second diameter defining the first opening, the first diameter being greater then the second diameter, the first and the second collar further comprising a first rib on the first collar and a second rib on the second collar for connecting to a pipe; (b) a pipe having a unitary body defining an air pathway between a first and a second opening, wherein both the first and the second opening are substantially circular for connection to a boot or a takeoff, the unitary body having a first diameter operatively connected to a collar of a second diameter defining the first and the second opening, the second diameter being greater then the first diameter; (c) a takeoff having a unitary body defining an air pathway between a first and a second opening, wherein the first opening is substantially circular for connection to a duct and the second opening is substantially circular for connection to a pipe, the unitary body further comprises a first collar of a first diameter operatively connected to a second collar of a second diameter defining the second opening, the first diameter being greater then the second diameter; (d) a duct having a rectangular body, a length, a first and a second connecting edge and a raised flange along the length of the first connecting edge, a set of scorings spaced apart and running parallel the length of the body, a first and a second opening formed by folding the body along the scorings and overlapping the raised flange and the second connecting edge, the rectangular body defining an air pathway between the first and the second opening wherein the first and the second opening are substantially rectangular for connection to a central unit, an end cap or a duct; and (e) an end cap having a rectangular surface supported peripherally by an edge and a wall, the wall extending perpendicularly and outwardly from the rectangular surface for closing off the end of a duct. 2. The duct of claim 1 wherein first opening is connected to the central air unit and the second opening to the end cap. 3. The duct of claim 2 wherein a hole is cut, the hole having a diameter equal to the first diameter of the takeoff, the first opening of the takeoff being secured over the hole in the duct, the pipe being secured tightly to the second opening of the takeoff, the first opening of the boot being secured tightly to the pipe and a register being secured tightly to the second opening of the boot for distributing air from the central air unit to the register. 4. The duct of claim 3 wherein tight connection between the duct, takeoffs, pipe, boots and registers prevents loss of air and increases efficiency. 5. The pipe of claim 1 wherein the unitary body is either flexible or rigid. 6. The boot of claim 1 wherein the second collar is adapted to fit a 6 inch diameter pipe when the first collar is removed, the first collar is adapted to fit a 7 inch diameter pipe. 7. The boot of claim 1 wherein the second opening is manufactured to accommodate registers having different widths and lengths. 8. The boot of claim 1 wherein the first opening defines a first plane perpendicular to a second plane defined by the second opening. 9. The boot of claim 1 wherein the first opening defines a first plane parallel to a second plane defined by the second opening. 10. The takeoff of claim 1 wherein the first opening defines a first plane perpendicular to a second plane defined by the second opening. 11. The takeoff of claim 1 wherein the first opening defines a first plane parallel to a second plane defined by the second opening. 12. The takeoff of claim 1 further comprising a flange extending outwardly from the first opening to connect the takeoff to the duct. 13. The system of claim 1 wherein the boot, pipe, takeoff, duct and end cap are a thermoplastic. 14. The system of claim 1 wherein the boot, pipe, takeoff, duct and end cap are formed by injection molding. 15. The system of claim 1 wherein the register boot further comprises a flange extending outwardly from the second opening to support the register boot. 16. The register boot of claim 8 further comprising a plurality of tabs extending outwardly from the flange for assisting in installation of the register boot in a floor.