Patent · US Expired

Heating chamber with inner heating tubes and method of replacing the heating tubes

US5746590A · kind A · utility

3Cited by

3References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Karl May · Bad Vilbel, DE
Hartmut Herm · Dreieich, DE
Karlheinz Unverzagt · Offenbach am Main, DE

Key dates

Filing date	Feb 9, 1996
Grant date	May 5, 1998
Priority date	—
Expiry date	Feb 9, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4973
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

Heating chamber rotatable about a longitudinal axis thereof and having a plurality of heating tubes located in the interior thereof, a first end plate to which each of the heating tubes is secured by an end thereof, a second end plate to which each of the heating tubes is secured by the other end thereof, at least one of the ends of each of the heating tubes protruding through a respective opening formed in at least one of end plates, and a respective collar for connecting the at least one end of the respective heating tubes to the outer surface of at least one end plate, includes a respective reduced diameter portion formed in each of the heating tubes, the heating tubes being spaced from one another a greater distance at the at least one end plate than in the interior of the heating chamber; and method of replacing the heating tubes in the heating chamber.

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