Patent · US Active

Vacuum arrangement for a ground area

US7441304B2 · kind B2 · utility

2Cited by

8References

29Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Georg Maier · Weisendorf, DE
Harald Mang · Winnenden, DE
Klaus Langhans · Winnenden, DE
Wolfgang Layher · Besigheim, DE
Uwe Gaese · Stuttgart, DE
Jorg Schutt · Waiblingen, DE

Key dates

Filing date	May 11, 2005
Grant date	Oct 28, 2008
Priority date	—
Expiry date	Sep 16, 2026

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01D51/002
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A vacuum arrangement has a vacuum pipe having a vacuum opening facing a ground surface and adapted to pick up from the ground surface a material to be collected. The vacuum pipe conveys the material to be collected into a collecting container connected to the vacuum pipe. The vacuum pipe has a working area located within the area of the vacuum opening. At least one blower nozzle having a blower air exit is arranged such that a blower air flow exiting from the blower air exit is directed onto the ground surface into the working area. The blower air exit and the vacuum opening are positioned at a spacing relative to one another.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.