Litter vacuum
US6675424B2 · kind B2 · utility
10Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Mar 20, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/053
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mobile litter pickup vehicle has a pair of forward corner brushes independently mounted on articulated arms so that the brushes may be moved in the event an obstacle is encountered to avoid damage to the brushes or to the object. An air recirculating system is employed for prolonging the life of the final outlet filter, and an impermeable trash bag may be used for disposing of the contents of a primary scrim collection bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.