Vacuum cleaner dirt box
US4514199A · kind A · utility
10Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1984 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | May 25, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dirt box for an upright vacuum cleaner comprises an elliptical upper side wall portion below a top wall, a bowl-shaped bottom wall, an inlet neck opening into the chamber in the lengthwise direction and below one end of the upper side wall portion, and aimed to establish a swirling action. An outlet port for the dirt box is off-center toward the end from which the inlet extends. The bowl-bottomed dirt box is tilted and emptied through the inlet neck.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.