[Uchikoma]

I might totally misunderstand you as English is not my native tongue, but in Germany - and I assume in many other parts of Europe - there are large trucks that go around streets and smaller ones in parks that have vacuums and suck up the trash.

Not sure if your idea was the invention or starting a service business to offer street cleaning services.

[bandy]

Even in St. Louis (Missouri, USA) there are street sweepers that basically look like this http://cityofgrandterrace.org/images/pages/N278/image002.jpg with brushes that move dirt and small items around and a (weak?) vacuum cleaner, as well as little trucks that are used to vacuum-clean things like parking lots like this http://bestservices1.com/yahoo_site_admin/assets/images/7684... (from the name, I'd guess that it's of German manufacture). Therefore, I'm guessing that our young friend here has something else in mind.

[ChrisNorstrom]

They only clean the streets. Not the grassy areas around which is where the trash accumulates.

[arethuza]

"small forests and unclaimed land from trash"

Sounds like a slightly different approach - rather than having a vacuum cleaner of wheels (which can't go off-road). Have an "industrial" version of a standard canister/cylinder cleaner with a very long hose that can be used to clean grass/bushes.

Sounds like a pretty good idea to me!

[Uchikoma]

Yes, this is used here too, looks like a truck with a vacuum cleaner for offroad, forrest or side of the road. Don't know about cleaning bushed though :-)

[sylvinus]

Yep, this is the French version, albeit we also have larger ones:

http://photo.europe1.fr/infos/faits-divers/eboueur-proprete-...

[hackerboos]

Road sweepers I believe they are called.