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:
Jan. 15, 1991
Filed:
Nov. 28, 1989
Applicant:
Inventors:
Assignee:
Dragerwerk Aktiengesellschaft, Lubeck, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
252 6254 ; 252 6259 ; 523218 ; 73 2502 ;
Abstract
The invention is directed to a material having predeterminable magnetic suceptibility and this material is suitable for producing displacing bodies for oxygen measuring devices. The material is composed of a plastic mass as primary substance and binding agent and, in any desired mixing ratio, at least one of the following additive substances: small hollow bodies, a paramagnetic material and a light ferromagnetic material.