Device for testing the suction strength of an upright vacuum sweeper
US4337663A · kind A · utility
0Cited by
1References
4Claims
0Family size
Inventor
Key dates
| Filing date | Oct 20, 1980 |
| Grant date | Jul 6, 1982 |
| Priority date | — |
| Expiry date | Oct 20, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/19
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An elongated thin flat hard-plastic plate has a face sized to overlie and seal the rug nozzle of an energized inverted upright vacuum sweeper for testing and demonstrating the suction strength of the sweeper. The sheet is desirably provided (1) with depending marginal flanges to prevent its lateral sliding-off the nozzle, and (2) with upstanding ribs on its upper surface to rigidify the sheet and to form a block-shaped centrally located handle grip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.