Patent · US Expired

Roller mill construction

US4491280A · kind A · utility

5Cited by

4References

6Claims

0Family size

Assignee

Gebr. Pfeiffer AG · DE

Inventors

Ottmar Bacharach · Kaiserslautern, DE
Herbert Schafer · Höhenkirchen-Siegertsbrunn, DE

Key dates

Filing date	Mar 29, 1983
Grant date	Jan 1, 1985
Priority date	—
Expiry date	Mar 29, 2003

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB02C15/007
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A roller mill having a grinding plate revolving around a vertical central axis and a plurality of grinding rollers arranged in grinding rolling contact with the grinding plate is constructed with a separate frame supporting each of the grinding rollers for rotation about a stationary axis, with each frame having projections at both its ends constructed to form a connecting joint between the frames at each of the ends thereof.

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