Electric heating/warming fabric articles
First Claim
1. A method of forming an electric heating/warming fabric article, the method comprising:
- configuring a planar, sheet-form conductive layer element including a bus, formed of electrically conductive material selected from the group consisting of metallized textile, metallized plastic sheeting, and metal foil, into an electrically conductive circuit with shape corresponding to a selected surface region of a wearer'"'"'s body and with one or more circuit regions of relatively higher resistivity among one or more circuit regions of relatively lower resistivity, the one or more circuit regions of relatively higher resistivity positioned for correlation with one or more selected heating regions of the wearer'"'"'s body;
attaching said circuit to at least one of a first broad surface and a second broad surface of a fabric body in an arrangement corresponding to the selected surface region and in correlation with the one or more selected heating regions; and
,upon application of electrical current to said circuit, producing localized heating in the one or more circuit regions of relatively higher resistivity of the circuit attached upon the fabric body for preferential heating of the one or more selected heating regions of the wearer'"'"'s body.
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Accused Products
Abstract
Electric heating/warming composite fabric articles have at least a fabric layer having inner and outer surfaces, and an electric heating/warming element, e.g., including a bus, formed, e.g., of die cut metallized textile or plastic sheeting or metal foil, affixed at a surface of the fabric layer and adapted to generate heating/warming when connected to a power source. A air-and-water droplet resistant and water vapor permeable barrier layer may be positioned, for example, adjacent to the fabric layer; e.g., with the electric heating/warming element formed thereupon or at least partially impregnated therein, e.g. in a fabric laminate or in a composite formed by application of heat and pressure to at least one layer of a barrier film disposed adjacent thereto, including to protect the electric circuit, e.g. against abrasion, moisture, and or against physical stress due, e.g., to repeated crushing, bending or flexing. Methods of forming electric heating/warming composite fabric articles are described and claimed.
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Citations
35 Claims
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1. A method of forming an electric heating/warming fabric article, the method comprising:
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configuring a planar, sheet-form conductive layer element including a bus, formed of electrically conductive material selected from the group consisting of metallized textile, metallized plastic sheeting, and metal foil, into an electrically conductive circuit with shape corresponding to a selected surface region of a wearer'"'"'s body and with one or more circuit regions of relatively higher resistivity among one or more circuit regions of relatively lower resistivity, the one or more circuit regions of relatively higher resistivity positioned for correlation with one or more selected heating regions of the wearer'"'"'s body; attaching said circuit to at least one of a first broad surface and a second broad surface of a fabric body in an arrangement corresponding to the selected surface region and in correlation with the one or more selected heating regions; and
,upon application of electrical current to said circuit, producing localized heating in the one or more circuit regions of relatively higher resistivity of the circuit attached upon the fabric body for preferential heating of the one or more selected heating regions of the wearer'"'"'s body. - 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, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification