Patent · US Expired

Electric vacuum cleaner

US4851019A · kind A · utility

12Cited by

3References

22Claims

0Family size

Assignee

VORWERK & CO. INTERHOLDING GMBH · DE

Inventors

Heinz-Jurgen Ahlf · Bensberg, DE
Jurgen Jager · Witten, DE
Peter Wulf · Ennepetal, DE
Wieland Guhne · Remscheid, DE
Manfred Eckart · Wuppertal, DE

Key dates

Filing date	Apr 28, 1988
Grant date	Jul 25, 1989
Priority date	—
Expiry date	Apr 28, 2008

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L9/1436
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

An electric vacuum cleaner having a chamber arranged above the motor housing to receive a filter bag the side of which facing the motor housing is in valve-closed socket-connection communication with the fan-air channel and which can be removed from the chamber after opening and separating the socket connection. The filter bag is in socket-connection communication with a filter-bag intermediate support which is carried along upon the swinging open of the chamber and which has the valve-closure member and from which the filter bag can be separated somewhat on the other side of the vertical position of the cross-sectional plane of the socket connection.

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