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:
Feb. 18, 1997

Filed:

Dec. 06, 1995
Applicant:
Inventors:

David Bartz, Santa Clara, CA (US);

Robert M Kendall, Sunnyvale, CA (US);

Frederick E Moreno, Los Altos, CA (US);

Assignee:

Alzeta Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
422173 ; 422198 ; 110236 ; 431-7 ; 431328 ;
Abstract

The disposal of troublesome substances, especially global-warming halogenated compounds is difficult enough, but is particularly difficult when associated with particulate-forming matter, such as silane and arsine commonly encountered in waste gas streams of the semiconductor industry. The combustive destruction of the troublesome substances in such a waste gas stream is simply and successfully achieved by injecting the stream admixed with fuel gas into a combustion zone surrounded by the radiant surface of a foraminous gas burner that is separately fed fuel gas and excess air sufficient to burn all the combustibles entering the combustion zone. A simple apparatus integrates the combustion zone with a quenching zone for the combustion product stream.


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