Method of forming electric heat/warming fabric articles
Patent 6160246 Issued on December 12, 2000. Estimated Expiration Date: 
September 13, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 13, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsApplicationNo. 395326 filed on 09/13/1999US Classes:219/545, Resistive element interwoven with fabric support29/91.1, Method219/529, Cloth or other fabric219/549FlexibleExaminersPrimary: Walberg, TeresaAssistant: Dahbour, Fadi H. Attorney, Agent or FirmInternational ClassH05B 003/34AbstractA fabric article that generates heat upon application of electrical power is formed, for example, by joining stitch and loop yarns to form a fabric prebody, with the loop yarn forming in loops that overlay the stitch yarn at the technical face form the technical and back of the fabric prebody. An electrical resistance heating element in the form of a conductive yarn is incorporated into the fabric prebody at symmetrical and/or asymmetrical spaced-apart intervals e.g., as the stitch yarn, the electrical resistance heating elements extending between opposite edge regions of the fabric. The technical face and/or the technical back of the fabric body is finished, in a manner avoiding damage to electrical conductivity of the electrical resistance heating elements, to form a fleece surface region, and conductive elements are provided for connecting the electrical resistance heating elements to a source of electrical power. Preferably, the conductive yarn has a core of insulating material, an electrical resistance heating element about the core, and a sheath material surrounding the electrical resistance heating element and core.Field of SearchResistor makingHeater type UPHOLSTERED ARTICLE MAKING Method Incorporating unknit or fleece-type materials Incorporating unknit or fleece-type materials Incorporating unknit or fleece-type materials FABRICS OR ARTICLES Articles Garments Reinforced Incorporated unknitted materials Fleece or pile type Warp With crochet stitch Fleece or pile type Warp Materials MESH, WOVEN, OR BRAIDED RESISTANCE ELEMENT Apparel Bed covering (e.g., blanket) Static structure (e.g., building pavement, etc.) Chair, bed, or other body-supporting means Body-supported (e.g., human body) Flexible or resilient (e.g., warming pad) Cloth or other fabric Resistive element interwoven with fabric support Flexible Heating element structure | |
