Method for recovering waste in sandy beach
US6540030B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Oct 4, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H12/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Waste scattered on a sandy beach is recovered in a clean and efficient manner by using a beach cleaner of a simple structure. In a first waste recovery step, a first beach cleaner A is allowed to travel on a sandy beach while being towed by a self-traveling vehicle R, whereby waste G1 such as string-like waste and other elongated waste is caught on rakes and conveyed to a waste recovery area. In a waste recovery station the first beach cleaner A is lifted to recover the waste. In a second waste recovery step, while a second beach cleaner is allowed to travel by the self-traveling vehicle, waste such as cans which have not been recovered in the first waste recovery step are scooped up in a waste conveying section, and are then collected in a waste collecting section by means of scraping blades and are recovered in a waste recovering area. In a third waste recovery step, while the first beach cleaner A is allowed to travel at a high speed by the self-traveling vehicle R, small waste such as cigarette butts popped up with sand which is scraped up by the scraper are allowed to drop and collected onto a waste catch net, and the waste thus collected is recovered in the waste recovery are…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.