Cordless vacuum cleaner
US4011624A · kind A · utility
92Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1975 |
| Grant date | Mar 15, 1977 |
| Priority date | — |
| Expiry date | Aug 25, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L5/24
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A battery-operated vacuum cleaner is described which includes a first module including a source of power such as a plurality of battery cells and a second module including a motor, fan, filter and dirt receptacle. The first module may alternatively include means for attachment thereof to a car battery. The motor, fan and filter combination are designed for maximum efficiency so as to provide good cleaning capability with minimum battery drain. The intake portion of the tool is designed, in accord with the particular teachings of this invention, to provide maximum cleaning capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.