Claims
- 1. A device for thermally insulating regions of a fluid transport system, the device comprising:
a flexible outer cover; an insulative layer attached inside the outer cover such that the outer cover and insulative bag define an interior cavity; a sealing structure attached to the insulative bag and positioned so as to removably seal the interior cavity of the insulative bag about the region of the fluid transport system; and a plurality of securing structures interconnecting the outer cover and the insulative layer so as to removably secure the device to the region of the fluid transport system.
- 2. The device of claim 1, wherein the insulative bag comprises at least one layer of a radiant barrier material and at least one layer of an air retaining material.
- 3. The device of claim 2, wherein the insulative layer further comprises a liner layer.
- 4. The device of claim 3, wherein the layer of radiant barrier material comprises a layer of radiant barrier foil.
- 5. The device of claim 4, wherein the layer of radiant barrier foil comprises two layer of aluminum foil with a layer of polyethylene bubble material interposed therebetween.
- 6. The device of claim 4 wherein the air retaining material comprises a layer of water polyolefin foam.
- 7. The device of claim 1, wherein the insulating bag retains a plurality of quantities of air adjacent the region of the fluid transport system such that the air is restricted from movement such that the insulating layer provides a barrier to the conduction and convection of heat from the region of the fluid transport system.
- 8. The device of claim 1, wherein the insulative layer comprises alternating layers of radiant barrier material and air retaining layers such that the layers of air retaining layers inhibit conduction of heat through the radiant barrier layers.
- 9. A device for thermally insulating a U-shaped backflow device, the device comprising:
a flexible outer cover; an insulative layer attached to the flexible outer cover, wherein the flexible outer cover and the insulative layer define a cavity therein that is sized so as to receive the U-shaped backflow device wherein the insulative layer provides a radiant barrier that inhibits radiant heat loss within the cavity and a air retaining barrier that inhibits air flow out of the cavity to thereby inhibit convention and conduction cooling of the U-shaped back flow device; and at least one securing structure formed on the device so as to secure the outer cover and the insulative layer about the U-shaped backflow device so that the device cannot be removed from the U-shaped backflow device without removal of the at least one securing structure.
- 10. The device of claim 9, wherein the flexible outer cover comprises a weather resistant outer cover.
- 11. The device of claim 9, wherein the insulative layer comprises a layer of radiant barrier material and a layer of air retaining material.
- 12. The device of claim 11, wherein the layer of radiant barrier material comprises a first and a second layer of aluminum foil with a layer of polyethylene bubble material interposed therebetween.
- 13. The device of claim 11, wherein the layer of air retaining material comprises a layer of water polyolefin foam.
- 14. The device of claim 11, wherein the securing structure comprises:
a first and a second grommet formed on a first and a second edge of the outer cover so that when the device is positioned on the U-shaped backflow device, the first and second grommet are positioned within a space defined by the U-shaped backflow device that is enclosed by the U-shaped backflow device and the ground with the first grommet being positioned on the first side of the backflow device and the second grommet being positioned on the second side of the backflow device; and a lock that is attached in the openings of the first and second grommet such that the lock interconnects the first and second edges of the outer cover to each other within the space defined by the U-shaped back flow device such that the device cannot be removed from the U-shaped backflow device without removal of the lock.
- 15. A method of protecting a U-shaped backflow device from freezing, the method comprising:
positioning the U-shaped backflow device within a cavity of a thermally insulating cover that has a radiant barrier and an insulative layer; securing the insulating cover so that the outer edges of the cover are secured in a spaced defined by the U-shape backflow device such that the cover cannot be removed while the insulating cover is so secured.
RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional Application No. 60/251,641 filed Dec. 5, 2000, entitled Insulated Backflow Device Cover.
Provisional Applications (1)
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Number |
Date |
Country |
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60251641 |
Dec 2000 |
US |