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. 07, 1995
Filed:
Feb. 10, 1994
Wolfgang Bather, Lubeck, DE;
Rainer Bommer, Lubeck, DE;
Dragerwerk Aktiengesellschaft, Lubeck, DE;
Abstract
One or more reaction zones, formed as channels into a carrier, are each lined with a color indicator. This carrier is improved so that the reaction zones can be coated with the required indicators with uniform coating thickness. The coating can be individually changed and can be easily provided. The above is achieved with a carrier which is subdivided into an upper part and a lower part and a sandwich-like composite foil is held between these parts. A reagent carrier foil of the composite foil is provided with the reaction zones and is covered with a channel foil which delimits the reaction zones to have a channel-like shape. An especially advantageous configuration for the reaction zones is provided by an aperture matrix in which carrier spherules are accommodated. The carrier spherules are impregnated with the indicator.