Suction cleaner
US4724574A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1987 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Mar 19, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A lightweight, upright, top-loading vacuum cleaner wherein a seal between the disk of a filter bag and a duct for conveying dirt-laden air to the bag is provided adjacent the outer peripheral edges of the disk resulting in the disk becoming an integral part of the seal while eliminating pressure differential across opposite sides of the disk. A portion of the duct extending into the filter bag is capable of being displaced to an open position for filter bag loading and unloading and is normally closed to maintain the seal by a latch which cooperates with the handle vacuum cleaner handle. The vacuum cleaner handle includes electrical components having projections which are releasably received and supported within an electrical receptacle supported by the vacuum cleaner housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.