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:
May. 30, 1989
Filed:
Aug. 05, 1987
Applicant:
Inventors:
Assignees:
Hitachi Metals, Ltd., Tokyo, JP;
Shoei Manufacturing Co., Ltd., Osaka, JP;
San-In Sanso Co., Ltd., Tottori, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
374 57 ; 731181 ; 738659 ;
Abstract
An apparatus for testing a heat-insulating tubular member having at least one tubular portion comprising a combustion chamber connected to the tubular portion, a burner mounted in each combustion chamber, and an air line and a fuel supply line both connected to the burner. It may further comprise an air line for increasing exhaust gas pressure which opens on the inner wall of the combustion chamber near the burner.