Vertical bubble dispensing device
US6820662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2001 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Jun 12, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H33/28
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A machine that makes bubbles that are dispensed vertically. A membrane-forming system forms a bubble solution membrane over a bubble ring. Air is passed through the bubble ring by a blowing fan, which is intermittently operated to allow contact between a membrane-forming ring and the bubble ring. Bubble solution is continuously supplied to the bubble rings from a central reservoir. Safety switches prevent operation of the bubble-making machine unless there is bubble solution in the reservoir, the main housing is properly connected to the fan, and the bubble machine is in an upright position (and not tipped over). The present invention provides continuous operation for the duration of the bubble solution supply, and is easily washed, used, maintained, and manufactured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.