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:
Nov. 23, 1999
Filed:
Dec. 15, 1998
Applicant:
Inventor:
Masumi Sakai, Kyoto, JP;
Assignee:
Shimadzu Corporation, Kyoto, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340632 ; 340634 ; 431 24 ;
Abstract
An atomic absorption photometer includes a microprocessor which is programmed so as to affirmatively create an unsafe condition by lowering the pressure inside the flow route of a combustion improving gas and to check if the gas switch in this flow route indicates this unsafe condition. If it is found that this unsafe condition is not being indicated by the switch, a warning signal is outputted and the use of flame by the photometer is prevented.