Vacuum cleaner bag assembly
US4311493A · kind A · utility
7Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1980 |
| Grant date | Jan 19, 1982 |
| Priority date | — |
| Expiry date | Jun 3, 2000 |
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.