Electrode with exchangeable membrane

• US 3,879,279 A
• Filed: 11/26/1971
• Issued: 04/22/1975
• Est. Priority Date: 12/03/1970
• Status: Expired due to Term

• Current Assignee: Friedrich Gustav Karl Baucke
• Original Assignee: Friedrich Gustav Karl Baucke
• Inventors: Baucke, Friedrich Gustav Karl
• Primary Examiner(s): Tung, T.
• Application Number:
  US05/202,416
• Time in Patent Office: 1,243 Days
• Field of Search: 204/1T,195M,195G
• US Class Current: 204/419
• CPC Class Codes: G01N 27/333 Ion-selective electrodes or membranes glass electrodes G01N27/36

Abstract

An electrode for measuring ion activities having an electrode shaft divided into an upper portion and a lower portion. An ionsensitive membrane is held between the upper and the lower portions of the shaft. The outer surface of the membrane contacts the material whose ion activity is to be measured.

Claims

1. a hollow upper portion having:

a. internal threads adjacent the lower extremity of the upper portion;

b. a planar surface at right angles to the centerline of the electrode shaft;

2. An electrode for measuring ion activities comprising:

A. an electrode shaft divided into (1) a hollow upper portion the lower extremity of which comprises a flat surface having a plane at right angles to the centerline of the electrode shaft, (2) a lower portion the upper extremity of which comprises a flat surface having a plane at right angles to the centerline of the electrode shaft, B. an ion sensitive membrane between the upper and lower portions of the shaft wherein the membrane is in the form of an annular ring, said ring having;

3. An electrode for measuring ion activities comprising:

A. an electrode shaft comprising;

4. An electrode for measuring ion activities comprising:

A. an electrode shaft divided into

5. An electrode for measuring ion activities of two ions comprising:

A. an electrode shaft divided into;