Disposable thermal neck wrap
First Claim
Patent Images
1. A disposable thermal neck wrap comprising:
- A) at least one substantially U-shape piece of flexible material, said piece of flexible material having a first arm portion, a second arm portion, and a central body portion therebetween, such that when said neck wrap is placed on a user, said central body portion is centered at said user'"'"'s upper back and lower neck and said first and second arm portions lay across said user'"'"'s shoulders toward said user'"'"'s chest; and
B) one or more thermal packs fixedly attached within or to said at least one piece of flexible material, wherein said thermal pack has a unified structure comprising;
a) at least one continuous layer comprising a single sheet or film having a first side of polypropylene and a second side of a low melt temperature copolymer, wherein said continuous layer is coextruded such that said first side and said second side are thermally fused and can not be separated, and wherein sad continuous layer is semirigid at a temperature of about 25°
C. and substantially less rigid at a temperature of about 45°
C.; and
b) a plurality of individual heat cells spaced apart and fixed within or to said unified structure of said thermal pack.
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Abstract
The present invention relates to disposable thermal neck wraps having one or more thermal packs comprising a unified structure having at least one continuous layer of semirigid material, which has different stiffness characteristics over a range of temperatures, and a plurality of heat cells, wherein the heat energy is applied to specific areas of the upper back, neck and shoulders. More particularly, the present invention relates to disposable thermal neck wraps having good conformity to user'"'"'s upper back, neck, and shoulders which provides consistant, convienent, and comfortable heat application.
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Citations
23 Claims
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1. A disposable thermal neck wrap comprising:
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A) at least one substantially U-shape piece of flexible material, said piece of flexible material having a first arm portion, a second arm portion, and a central body portion therebetween, such that when said neck wrap is placed on a user, said central body portion is centered at said user'"'"'s upper back and lower neck and said first and second arm portions lay across said user'"'"'s shoulders toward said user'"'"'s chest; and B) one or more thermal packs fixedly attached within or to said at least one piece of flexible material, wherein said thermal pack has a unified structure comprising; a) at least one continuous layer comprising a single sheet or film having a first side of polypropylene and a second side of a low melt temperature copolymer, wherein said continuous layer is coextruded such that said first side and said second side are thermally fused and can not be separated, and wherein sad continuous layer is semirigid at a temperature of about 25°
C. and substantially less rigid at a temperature of about 45°
C.; andb) a plurality of individual heat cells spaced apart and fixed within or to said unified structure of said thermal pack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification