Self-sealing vent assembly
US10921018B2 · kind B2 · utility
0Cited by
8References
12Claims
0Family size
Inventors
Key dates
| Filing date | Oct 22, 2018 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Apr 13, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2110/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Example embodiments use hydrophilic substances to absorb moisture from the air passing through the vent cover. The vent cover is recommended to be used along with a fan to regulate the air flow through the vent cover. The vent cover has holes, and the holes are filled with the hydrophilic material (i.e., hydrogel or polyacrylamide beads). Once enough moisture from the air passes through the vent cover, the vent cover seals itself and prevents air from flowing. The hydrophilic material allows the water to evaporate over time and thus effectively removes the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.