Vacuum cleaner bag assembly
US4240812A · kind A · utility
5Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1979 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Jul 9, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A vacuum cleaner has an elongated porous outer bag for holding a filter bag over an air outlet. A hanger within the outer bag is positioned to suspend the outer bag from the vacuum cleaner, as well as to hold a pocket within the outer bag, so that spare filter bags may be held within the porous outer bag and an end flap extending into the outer bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.