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:
Dec. 16, 1986
Filed:
Mar. 15, 1983
Applicant:
Inventor:
Wolfgang Eckstein, Sereetz, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01K / ;
U.S. Cl.
CPC ...
374142 ; 116206 ; 116207 ; 422 86 ; 422 87 ;
Abstract
An indicating tube for detecting gas type and characteristics comprises a hollow transparent tube having a passage therethrough for the passage of a gas to be detected and with a first material in the passage giving a visual indication of the gas characteristic and a second material in the passage which gives a visual indication of the temperature characteristic of the gas.