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. 20, 1990
Filed:
Sep. 01, 1988
Wolfgang Bather, Lubeck, DE;
Dragerwerk Aktiengesellschaft, Lubeck, DE;
Abstract
The invention relates to a detector device for determining components of a sample such as a gaseous sample. The determination is made with reagents which are present in two component quantities separate from each other in the storage condition of the detector device. The component quantities are brought into contact with each other to establish the use condition of the detector device. A simple production and reliable operation of such detector devices is obtained if at least one of the component quantities is contained in a plurality of particles during the storage condition with each particle having a reagent-containing core and an encapsulation surrounding the core. The encapsulation is made of a material which is solid at normal temperature and melts at a higher temperature which is unharmful to the remaining components of the detector device. The detector device is transferred from the storage condition to the use condition by removing the encapsulation by heating. A method for producing the detector device is also disclosed.