Sweeper drag shoe
US7024719B2 · kind B2 · utility
1Cited by
25References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Oct 6, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/045
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sweeper drag shoe used with a rotary broom in sweeping, whereby escaping debris from under a contact skid is recaptured. The 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 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 end of the broom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.