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.

Date of Patent:
Sep. 14, 1999

Filed:

Jun. 19, 1998
Applicant:
Inventor:

Susumu Takahashi, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23B / ;
U.S. Cl.
CPC ...
431-5 ; 126 / ; 110236 ; 294033 ; 294034 ; 134 21 ;
Abstract

Combustibles such as oily substances adhered to or impregnated in metallic articles are removed, before the articles are subjected to a heat-treatment for carburizing or sintering them, by heating them in a heating chamber with a combustion tube, and discharging the combustibles outside of the chamber after having sucked under a negative air pressure the combustibles into the tube instantly they have been evaporated from the articles and after having burnt the combustibles in the tube.


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