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. 29, 1983
Filed:
Mar. 01, 1982
Oscar R Dufau, Fullerton, CA (US);
Graphic Controls Corporation, Buffalo, NY (US);
Abstract
In an electrode of the type having a reservoir for containing a reference electrolyte solution and a liquid junction for effecting electrical communication between said reference electrolyte solution and a sample solution, and including a seat and plug valve assembly of the electrode in communication with the reservoir and a sample solution, an improvement characterized in that a resiliently stressed spring contained within the reservoir biases the plug axially into mating engagement with the valve seat, and in that, upon application of displacement pressure axially against the plug, the latter automatically twists, axially, to execute a partial turn so that a valve-closing face of the plug laps or wipes against the seat and concurrently moves from engagement with the valve seat to open the valve assembly for fluid flow and cleansing flushing therethrough.