Convertible sweeper
US5295277A · kind A · utility
16Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Dec 14, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/0854
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A convertible sweeper has a main rotating cylindrical brush and a second rotatable cylindrical tool. The second tool is movable between a first position in front of the main brush where it rotates to assist in very effectively loading debris comprised mainly of dry leaves, paper, etc. into the hopper, and a second position in the upper part of the hopper entrance. There it may be held stationary when the debris to be swept is mainly sand, which is very efficiently swept by the main brush alone, or it may be rotated if the debris also includes some light material, because such rotation assists to a degree in loading that material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.