Electric heating blanket or pad
US10849193B2 · kind B2 · utility
3Cited by
167References
63Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2015 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Jul 17, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/033
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric blanket or pad for warming a living body including a flexible sheet-like heating element including an upper edge, a lower edge, and at least two side edges. A shell formed of layers of flexible sheets covering the heating element and sealed with a weld. The weld coupling the sheets of the shell about the edges to hermetically seal the heating element therebetween. The weld may be an RF weld, ultrasonic weld, or a heat bond, wherein the sheets comprise PVC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.