Heating device
US9671133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2012 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Aug 25, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2007/0258
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention provides a heating device ensuring sufficient adhesive force, even when it is removed from clothing and then reattached to different clothing. The heating device of the present invention comprises a bag unit 2 containing an exothermic composition A including an oxidizable metal that can generate heat by contact with air, one surface of the bag unit 2 being air-permeable; an adhesive layer 3 formed on the other surface of the bag unit 2; a first release sheet 4 provided on the adhesive layer 3 to cover the adhesive layer 3; and a second release sheet 5 provided on the first release sheet 4 to cover the first release sheet 4, wherein the first release sheet 4 has a release portion 41 and a residual portion 42; when the second release sheet 5 is removed from the first release sheet 4, the release portion 41 is removed together with the second release sheet 5 and the residual portion 42 remains on the adhesive layer 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.