Blow-suction device with operation mode adjustment mechanism
US11109541B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2016 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Dec 25, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/545
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention relates to a blowing-suction device. The blowing-suction device includes: a housing, having a first opening connected to the outside; an air tube, connected to the housing; an air flow generation apparatus that operably generates an air flow, where when the blowing-suction device is in the blowing mode, the air flow is blown out from the air tube, or when the blowing-suction device is in the suction mode, the air flow is sucked from the air tube; and a collection apparatus, configured to collect an object sucked by the blowing-suction device in the suction mode, where the collection apparatus is connected to the first opening both in the blowing mode and in the suction mode, and the collection apparatus further includes an air admission portion, and in the blowing mode, the air admission portion is open; or in the suction mode, the air admission portion is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.