The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 1988
Filed:
Jul. 22, 1987
Applicant:
Inventors:
Karl Albers, Anholt, DE;
Alfons Temminghoff, Sudlohn, DE;
Assignee:
Bergemann GmbH, Wesel, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28G / ;
U.S. Cl.
CPC ...
165 95 ; 15377 ; 122379 ; 122390 ; 122392 ; 277 53 ; 277 56 ; 277D / ;
Abstract
Device for sealing retractable soot-blower lances at the point of insertion through the wall of a heat exchanger. A labyrinth box consists of lamellas. The lamellas narrowly surround the soot-blower lances and are secured at the outer edge in a wall box. The wall box is tightly sealed to the wall of the heat exchanger and has an air-barrier connection. The object is to allow one wall box to accommodate several soot-blower lances, even when they have different outside diameters. Several soot-blower lances accordingly extend through the wall box and several lamellas radially surround the soot-blower lances alternately either narrowly or loosely.