Patent · US Expired

Motor driven cylindrical brush for a cleaning apparatus

US4530128A · kind A · utility

1Cited by

4References

6Claims

0Family size

Assignee

Progress-Elektrogeraete Mauz & Pfeiffer GmbH · DE

Inventors

Gernot Jacob · Diez, DE
Robert Maier · Babenhausen, DE

Key dates

Filing date	Dec 21, 1983
Grant date	Jul 23, 1985
Priority date	—
Expiry date	Dec 21, 2003

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L9/0477
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A motor driven cylindrical brush for a cleaning apparatus. The brush has bristles which lie in the zone outside a bearing section provided with a contact surface for a drive belt. Between the bristle filling and the bearing section, the brush member has recessed annular grooves. Via these grooves, it is possible to compensate for length changes of the brush member. These length changes occur when the brush filling is anchored in the brush member. By compensating for these length changes, the brush is very smooth running, and minimum bearing loading occurs.

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