Patent · US Expired

System for venting the heating pipes of a tubular rotary dryer

US4045881A · kind A · utility

1Cited by

7References

12Claims

0Family size

Assignee

Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler

Inventors

Bernd Brandt
Peter-Bernhard Jansen · Gangelt, DE
Heinz Liesenfeld

Key dates

Filing date	Jul 25, 1975
Grant date	Sep 6, 1977
Priority date	—
Expiry date	Jul 25, 1995

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF26B11/04
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Air is vented from steam-charged heating pipes of a tubular rotary dryer via connector pipes and a collecting pipe which is disposed circumferentially around the dryer drum. Holding blocks provided with inwardly-biased rollers support the collecting pipe for longitudinal movement on the exterior wall of the dryer drum.

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