Automatic suction sealing box and working method thereof
US11891228B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2019 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Nov 7, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Provided is an automatic air-extracting sealing box cover, comprising a bottom cover and a top cover that are mutually detachably connected, wherein the bottom cover and the bottom cover are connected to form a device chamber, and an automatic air extracting apparatus is mounted in the device chamber; the automatic air-extracting apparatus comprises a power source, a pressure sensor, an air pump, and a controller; the power source is connected to power source input ends of the pressure sensor, the air pump and the controller; an air extracting opening of the air pump and a probe of the pressure sensor project out of a lower surface of the bottom cover; an output end of the pressure sensor is connected to a collection circuit, and an output end of the collection circuit is connected to an input end of the controller; a control signal output end of the controller is connected an on/off control end of the air pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.