Patent · US Active

Manually guided suction apparatus

US7836545B2 · kind B2 · utility

0Cited by

8References

19Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Georg Maier · Weisendorf, DE
Wolfgang Layher · Besigheim, DE
Markus Zwimpfer · Fellbach, DE
Uwe Gaese · Stuttgart, DE
Marco Deuchert · Karlsruhe, DE
Michael Hermann · Tacherting, DE
Sebastian Gembardt · Weinheim, DE
Jochen Keinath · Karlsruhe, DE
Rolf Erhardt · Buchs, CH

Key dates

Filing date	Nov 9, 2006
Grant date	Nov 23, 2010
Priority date	—
Expiry date	Sep 23, 2029

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE01H1/0863
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A manually guided suction apparatus for suctioning up material via a suction air stream, comprising a suction fan having a fan housing surrounding a fan wheel and provided with an intake opening. A centrifugal separator is disposed upstream of the intake opening and produces a curved path of the suction air stream. The centrifugal separator has a curved peripheral wall in which is disposed a removal opening for material that is to be sucked up. The intake opening is disposed approximately in a central portion of the centrifugal separator.

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