PVC heating blanket

Abstract

The utility model relates to a PVC heating blanket. The PVC heating blanket includes: a power supply unit including a thermostat that receives power from a current source; a heating blanket portion, the heating blanket portion comprising a housing and a heating element, the heating element being contained within the housing, the housing comprising an outer periphery, the power supply unit being positioned adjacent to one edge of the outer periphery; and a fastening device, wherein the fastening device extends from the one edge of the outer periphery. The power unit is offset from the peripheral edge of the heating blanket portion to provide a gap at least for the width of the wire. If the heating blanket portion becomes too hot, the thermostat will stop the flow of electrical current to the heating blanket portion.

Description

Technical Field

[0001] This utility model generally relates to the construction industry, and more specifically, to a PVC heating blanket including a power supply unit positioned adjacent to one edge of the heating blanket and a fastening device extending from said one edge of the heating blanket. Background Technology

[0002] To bend PVC pipes, they must first be heated. Otherwise, the PVC pipes will break or twist when bent. Existing PVC heating blankets position the power supply unit adjacent to one edge and the fastening strap on the opposite edge. Positioning the power supply unit on one edge and the fastening strap on the opposite edge has the disadvantage of reducing the contact area between the heating blanket portion and the surface area of ​​the PVC pipe. This results in wasted electricity and a longer heating time for the PVC pipe. Furthermore, the power supply unit includes a power cord. Existing PVC heating blankets position the power cord at the periphery of the heating blanket portion. As a result, the packaging for storing the PVC heating blanket must be longer to accommodate the width of the power cord. Additionally, extra packaging material and increased shelf space must be used to store the PVC heating blanket packaging.

[0003] Therefore, there is a clearly felt need in the art for a PVC heating blanket that includes a power supply unit positioned adjacent to one edge of a heating blanket portion, and a fastening device extending from said one edge of the heating blanket portion; and the power supply unit being offset from the peripheral edge of the heating blanket portion to provide a gap at least for the width of the wire. Utility Model Content

[0004] This invention provides a PVC heating blanket, comprising a power supply unit offset from the peripheral edge of a heating blanket portion to provide a gap at least wide enough for a power cord. The PVC heating blanket preferably includes the power supply unit, the heating blanket portion, and a fastening device. The power supply unit preferably includes a thermostat and a power cord. The thermostat controls the flow of current to the heating blanket portion. If the heating blanket portion becomes too hot, the thermostat stops the flow of current to the heating blanket portion. The heating blanket portion preferably includes a heating element and a flexible outer cover. The heating element is preferably a long filament with an annular pattern to cover an inner surface area of ​​the heating blanket portion. The flexible outer cover is thermally conductive but non-conductive. The heating element is held within the flexible cover. The fastening device extends from the center of one edge of the heating blanket portion. The fastening device is preferably a fastening band, but can be any other suitable fastening device. The fastening band preferably includes a hook-and-loop fastener. The power supply unit is positioned adjacent to said one edge of the heating blanket portion and the fastening device. During use, the edge opposite to one edge of the heating blanket section contacts and wraps around the PVC pipe. The heating blanket section is secured in place by wrapping a fastening strap around it and securing it to itself. The power cord is then plugged into a 120V AC outlet to heat the PVC pipe.

[0005] Therefore, the purpose of this utility model is to provide a PVC heating blanket having a power supply unit positioned adjacent to one edge of a heating blanket portion and a fastening device extending from said one edge of the heating blanket portion.

[0006] Finally, another object of this invention is to provide a PVC heating blanket with a power supply unit offset from the peripheral edge of the heating blanket portion to provide a gap at least the width of a wire.

[0007] According to one aspect of this application, a PVC heating blanket is provided, characterized in that the PVC heating blanket comprises: a power supply unit including a thermostat that receives power from a current source; a heating blanket portion including an outer cover and a heating element contained within the outer cover, the outer cover including an outer periphery, the power supply unit being positioned adjacent to an edge of the outer periphery; and a fastening device extending from the edge of the outer periphery.

[0008] According to another aspect of this application, a PVC heating blanket is provided, characterized in that the PVC heating blanket comprises: a power supply unit including a thermostat and a power cord, the thermostat receiving power from a current source through the power cord; a heating blanket portion including an outer cover and a heating element, the heating element being contained within the outer cover, the outer cover including an outer periphery, the power cord extending from an end of the power supply unit, the distance between the end of the power supply unit and the periphery of the outer periphery being at least the thickness of the power cord; and a fastening device extending from the edge of the outer periphery.

[0009] According to another aspect of this application, a PVC heating blanket is provided, characterized in that the PVC heating blanket comprises: a power supply unit including a thermostat and a power cord, the thermostat receiving power from a current source via the power cord; a heating blanket portion including an outer cover and a heating element, the outer cover including a top layer and a bottom layer, the heating element being contained between the top layer and the bottom layer, the outer cover including an outer periphery, the power supply unit being positioned adjacent to one edge of the outer periphery, the power cord extending from an end of the power supply unit, the distance between the end of the power supply unit and the periphery of the outer periphery being at least the thickness of the power cord; and a fastening device extending from said one edge of the outer periphery.

[0010] According to one embodiment, the heating element comprises a conductive filament having an annular pattern.

[0011] According to one embodiment, the PVC heating blanket further includes a power source, wherein the power source is an alternating current voltage. According to one embodiment, the outer cover is made of a flexible material.

[0012] According to one embodiment, the outer cover is non-conductive.

[0013] According to one embodiment, the fastening device is a fastening band.

[0014] According to one embodiment, the fastening band includes a hook-and-loop fastener.

[0015] These and other objects, advantages, features and benefits of this invention will become apparent from the following description. Attached Figure Description

[0016] Figure 1 is a top view of a prior art PVC heating blanket.

[0017] Figure 2 This is a top view of the PVC heating blanket according to this utility model.

[0018] Figure 3 is a perspective view of a PVC heating blanket wrapped around a PVC pipe in the prior art.

[0019] Figure 4 This is a perspective view of a PVC heating blanket wound around a PVC pipe according to the present invention.

[0020] Figure 5 This is a schematic diagram of a preferred power supply unit for a PVC heating blanket according to the present invention.

[0021] Figure 6 This is a top view of a portion of the heating blanket, with a portion of the flexible cover removed to show the heating element of the PVC heating blanket according to this utility model. Detailed Implementation

[0022] Now refer to the attached diagram, and especially to... Figure 2 Figure 1 shows a top view of a PVC heating blanket 1. Referring to Figure 1, a prior art PVC heating blanket 100 is shown. The PVC heating blanket 100 includes a power supply unit 102, a heating blanket portion 104, and a fastening strap 106. The power supply unit 102 is positioned adjacent to one edge of the heating blanket portion 104, and the fastening strap 106 extends from the opposite edge of the heating blanket portion 104. Referring to Figure 3, the PVC heating blanket 100 is secured to a PVC pipe 108. The end of the heating blanket portion 104 is wound around the outer periphery of the power supply unit 102, rather than around the heating blanket portion 104 or the PVC pipe 108. Reference Figure 4 Due to the position of the power supply unit 10 relative to the fastening device 14, the PVC heating blanket 1 is wrapped around the PVC pipe 108 or the heating blanket portion 12.

[0023] The PVC heating blanket 1 preferably includes a power supply unit 10, a heating blanket portion 12, and a fastening device 14. (Reference) Figure 5 The power supply unit 10 preferably includes a thermostat 16 and a power cord 18. The thermostat 16 and the heating element 20 are powered by 120V AC. The thermostat 16 controls the flow of current to the heating blanket portion 12. If the heating blanket portion 12 becomes too hot, the thermostat 16 will stop the flow of current to the heating blanket portion 12. The heating blanket portion 12 preferably includes a heating element 20 and a flexible outer cover 22. The heating element 20 is preferably a long conductive filament with an annular pattern to cover the inner surface area of ​​the heating blanket portion 12. The flexible outer cover 22 includes a top layer 26 and a bottom layer 28. The flexible outer cover 22 is made of a thermally conductive but non-conductive flexible material. The heating element 20 is held between the top layer 26 and the bottom layer 28 of the flexible outer cover 22. A fastening device 14 extends from the center of one edge 30 of the heating blanket portion 12. The fastening device 14 is preferably a fastening band, but may also be any other suitable fastening device. The fastening band preferably includes a hook and loop fastener. The hook and loop fastener is a Velcro fastener. ®This product, but other types of straps can also be used. The power supply unit 10 is positioned adjacent to one edge 30 of the heating blanket portion 12. A gap G exists between the side edge 32 of the heating blanket portion 12 and the end of the power supply unit 10. When the PVC heating blanket 12 is placed in packaging (such as a box), the gap G allows the power cord 18 to be pushed into the periphery of the heating blanket portion 12. The gap G also helps the user to keep the edge of the PVC heating blanket as close to the wall as possible without the power cord 18 becoming an obstruction. The gap G is at least the thickness of the power cord 20, and in use, the edge 34 opposite to the said one edge 30 of the heating blanket portion 12 contacts and wraps around the PVC pipe 108. The heating blanket portion 12 is secured in place by wrapping the fastening strap 14 around it and securing it to itself. The power cord 18 is then inserted into a 120V AC outlet to heat the PVC pipe 108.

[0024] Although specific embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that changes and modifications may be made in its broader aspects without departing from the present invention, and therefore the appended claims will cover all such changes and modifications in its objective aspects, as they all fall within the true spirit and scope of the present invention.

Claims

1. A PVC heating blanket, characterized in that, The PVC heating blanket includes: A power supply unit, the power supply unit including a thermostat, the thermostat receiving power from a current source; The heating blanket portion includes an outer cover and a heating element, the heating element being contained within the outer cover, the outer cover including an outer perimeter, and the power supply unit being positioned adjacent to one edge of the outer perimeter; and A fastening device that extends from one edge of the outer periphery.

2. The PVC heating blanket according to claim 1, characterized in that: The heating element comprises conductive filaments with an annular pattern.

3. The PVC heating blanket according to claim 1, characterized in that, The PVC heating blanket also includes: The power source is an alternating current (AC) voltage.

4. The PVC heating blanket according to claim 1, characterized in that: The outer cover is made of flexible material.

5. The PVC heating blanket according to claim 1, characterized in that: The outer cover is non-conductive.

6. The PVC heating blanket according to claim 1, characterized in that: The fastening device is a fastening band.

7. The PVC heating blanket according to claim 6, characterized in that: The fastening band includes hook and loop fasteners.

8. A PVC heating blanket, characterized in that, The PVC heating blanket includes: A power supply unit, comprising a thermostat and a power cord, wherein the thermostat receives power from a current source via the power cord; The heating blanket portion includes an outer cover and a heating element, the heating element being contained within the outer cover, the outer cover including an outer perimeter, a power cord extending from an end of the power unit, and the distance between the end of the power unit and the perimeter of the outer perimeter being at least the thickness of the power cord; and A fastening device that extends from the edge of the outer periphery.

9. The PVC heating blanket according to claim 8, characterized in that: The heating element comprises conductive filaments with an annular pattern.

10. The PVC heating blanket according to claim 8, characterized in that, The PVC heating blanket also includes: The power source is an alternating current (AC) voltage.

11. The PVC heating blanket according to claim 8, characterized in that: The outer cover is made of flexible material.

12. The PVC heating blanket according to claim 8, characterized in that: The outer cover is non-conductive.

13. The PVC heating blanket according to claim 8, characterized in that: The fastening device is a fastening band.

14. The PVC heating blanket according to claim 13, characterized in that: The fastening band includes hook and loop fasteners.

15. A PVC heating blanket, characterized in that... The PVC heating blanket includes: A power supply unit, comprising a thermostat and a power cord, wherein the thermostat receives power from a current source via the power cord; A heating blanket portion, comprising an outer cover and a heating element, the outer cover comprising a top layer and a bottom layer, the heating element being contained between the top layer and the bottom layer, the outer cover comprising an outer perimeter, a power supply unit positioned adjacent to one edge of the outer perimeter, a power cord extending from an end of the power supply unit, the distance between the end of the power supply unit and the perimeter of the outer perimeter being at least the thickness of the power cord; and A fastening device that extends from one edge of the outer periphery.

16. The PVC heating blanket according to claim 15, characterized in that: The heating element comprises conductive filaments with an annular pattern.

17. The PVC heating blanket according to claim 15, characterized in that, The PVC heating blanket also includes: The power source is an alternating current (AC) voltage.

18. The PVC heating blanket according to claim 15, characterized in that: The outer cover is made of flexible material.

19. The PVC heating blanket according to claim 15, characterized in that: The outer cover is non-conductive.

20. The PVC heating blanket according to claim 15, characterized in that: The fastening device includes a hook-and-loop fastener.

Images