Patent · US Expired

Carpet cleaning device

US4437199A · kind A · utility

4Cited by

2References

6Claims

0Family size

Assignee

VORWERK & CO. INTERHOLDING GMBH · DE

Inventors

Peter Wulf · Ennepetal, DE
Annegret Schlecht · Wuppertal, DE

Key dates

Filing date	Mar 22, 1982
Grant date	Mar 20, 1984
Priority date	—
Expiry date	Mar 22, 2002

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L5/30
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A carpet cleaning device having brush rollers which extend cantilevered on both sides of their point of drive and are plug-engaged in head pieces rotating on a shaft, the head pieces being extended by coupling bushings which engage at their free end, by means of coupling claws, into mating claws of the hub of a drive gear which turns on the shaft.

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