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. 27, 1990
Filed:
Jun. 21, 1989
Uvo Holscher, Stockelsdorf, DE;
Dragerwerk Aktiengesellschaft, Lubeck, DE;
Abstract
The invention is directed to a measuring cell for detecting a component of a measuring sample. The measuring cell includes a housing in which an electrolyte as well as a measuring electrode and a counter electrode are accommodated. A membrane separates the electrolyte from the measuring sample and is pressed by a supporting part against the measuring surface of the measuring electrode. This membrane is improved such that it can compensate for volumetric changes in the electrolyte chamber in the clamped condition. The measuring cell is further improved in that a small amount of readiness energy is required for the operational-ready condition and the attachment of the membrane is not critical for its later function. A first portion of this membrane is pressed against the measuring electrode. In the region outside of this first portion and extending up to the peripheral edge where it is attached, a compensating membrane portion is formed which can change in its configuration.