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:
Sep. 06, 1988
Filed:
Jun. 15, 1987
Applicant:
Inventors:
Kurt Leichnitz, Gross Groaun, DE;
Hans Matthiessen, Gross Parin, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ; G05B / ;
U.S. Cl.
CPC ...
422 86 ; 422117 ;
Abstract
A test tube for combustible gases is intended to be provided with protective devices, so that, in proving the presence of combustible gases, it cannot become an ignition source. To that end, a flame arrester is arranged in front of and/or behind the test material.