Street sweeper drag shoe
US6892414B2 · kind B2 · utility
0Cited by
25References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2002 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Nov 14, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/045
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A street sweeper drag shoe of cast austempered ductile iron used with a rotary broom in sweeping, whereby escaping debris from under a contact skid is recaptured. The street sweeper drag shoe contains a deflection plate that redirects bristle tip movement inwardly to allow the broom to recapture debris which escapes during normal operation. The street sweeper drag shoe also includes an angled wedge for concentrating outer bristles of the broom into a rotating barrier to prevent debris migration to the ends of the broom. The contact skid exhibits total planar contact with the roadway without interceding carbide wear plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.