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:
Oct. 03, 1989
Filed:
Mar. 17, 1989
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An improvement of a device for measuring ion activity in a liquid sample comprising at least a pair of ion-selective electrode sheets, liquid-guiding portions for guiding a reference liquid and a liquid sample to each active surface of the pair of ion-selective electrode sheets respectively, and a bridge for electrically connecting both liquids supplied on the electrode sheets to each other is disclosed. Each ion-selective electrode sheet is arranged in such a manner that the active surface of the ion-selective electrode is placed upside down and each liquid guiding portion comprises a horizontal passage for conveying the liquid sample or the reference liquid supplied from the outside in the horizontal direction to the position just below the active surface of the ion-selective electrode, the horizontal passage being formed in a lower position than the active surface of the ion-selective electrode; and the horizontal passage is provided with a porous distributor which is bent to protrude upwardly from the horizontal passage up to the position just below the active surface of the ion-selective electrode so that the liquid sample or the reference liquid conveyed to the porous distributor can be brought into contact with the active surface of the electrode.