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:
Mar. 15, 1988
Filed:
Mar. 19, 1987
Wolfgang Eckstein, Sereetz, DE;
Carl-Ernst van der Smissen, Lubeck, DE;
Rainer Ernst, Curau, DE;
Bernhard Westrup, Lubeck, DE;
Dragerwerk Aktiengesellschaft, Lubeck, DE;
Abstract
A pellet of potassium superoxide, as the oxygen-yielding chemical, with an additive of catalyst material for stimulating the release of oxygen is improved by providing a concentrated addition of the catalyst material on the surface of the pellet; this permits a uniform release of oxygen during the entire period of the use of the pellet. With the pellet, oxygen is split off as required at the very outset of breathing with the breathing apparatus and a release of oxygen in excess of demand as use continues is avoided. A pellet of this type includes a compressed core body containing substantially potassium superoxide and surrounded by a compressed jacket made of highly catalyzed potassium superoxide material.