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:
Oct. 12, 1976

Filed:

Nov. 21, 1974
Applicant:
Inventor:

Roger L Bredeweg, Stevensville, MI (US);

Assignee:

Leco Corporation, St. Joseph, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2323 / ; 2325 / ; 431-9 ;
Abstract

A combustion system includes a combustion furnace for combusting a solid or liquid specimen and converting it to a gaseous mixture. The furnace is positioned in a circulatory loop in which oxygen is introduced to complete the combustion of the specimen into a gaseous mixture which is circulated through the furnace to fully oxidize the specimen and maintain the specimen gas concentration level constant during a measurement interval. To facilitate circulation of the gases in the loop, a circulation pump is employed in the flow path. In one embodiment, a detector is included in the loop while in alternative embodiments, an aliquot of the specimen gases is removed for analysis by a detector outside of the loop.


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