Porous heating body and atomizer having same
US12137740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2019 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Aug 15, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24F40/485
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A porous heating body includes a porous body having a first porous portion, a second porous portion and a third porous portion successively disposed in the porous body along a lengthwise direction of the porous body. A cross-sectional area of the first porous portion and a cross-sectional area of the third porous portion are both larger than a cross-sectional area of the second porous portion along a widthwise direction of the porous body. A heating element extends along the lengthwise direction of the porous body is disposed on the porous body. The heating element includes a heating portion. At least one portion of an extension length of the heating portion is overlapped with an extension length of the second porous portion. The porous body is shaped to enhance conductivity of liquid tobacco in a middle thereof, and storing liquid tobacco for replenishing at two bulge ends thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.