AN IMPROVED TURBIDIMETER LENS FOR REDUCING THE TENDENCY OF MIXTURES OF IMMISCIBLE FLUIDS TO FORM FILMS OF THE LENSES

• US 3,861,802 A
• Filed: 07/02/1973
• Issued: 01/21/1975
• Est. Priority Date: 07/02/1973
• Status: Expired due to Term

• Current Assignee: Clinton A. Jr. Belmear
• Original Assignee: Clinton A. Jr. Belmear
• Inventors: Belmear, Clinton A. Jr.
• Primary Examiner(s): McGraw, Vincent P.
• Application Number:
  US05/375,402
• Time in Patent Office: 568 Days
• Field of Search: 356/208,207,103,181,246,70 350/61,175NG 117/124E 250/573
• US Class Current: 356/442
• CPC Class Codes: G01N 21/534 by measuring transmission alone, i.e. determining opacity

Abstract

In a turbidimeter for determining the turbidity of liquids, the improvement comprising separating the light source and the light sensor from the liquids by covering the light source and light sensor with a fluorocarbon resin.

Claims

1. In a turbidimeter having a light source and a light sensor for determining the turbidity of liquids, the improvement comprising separating said light source and said light sensor from said liquids with a fluorocarbon resin lens which allows the passage of light therethrough, thereby minimizing the tendency of said liquids to form films on said lenses.

2. The improvement of claim 1 wherein said liquids comprise mixtures of immiscible fluids.

3. The improvement of claim 2 wherein said light source and said light sensor are parallel.

4. The improvement of claim 2 wherein said light source is directed toward said light sensor.

5. The improvement of claim 2 wherein said liquids contain oil and water.

6. The improvement of claim 2 wherein said fluorocarbon resin is polytetrafluoroethylene.

7. In a turbidimeter having a light source and a light sensor for determining the turbidity of liquids, the improvement comprising separating said light source and said light sensor from said liquids with a transparent lens coated with a fluorocarbon resin which allows the passage of light therethrough, thereby minimizing the tendency of said liquids to form films on said lenses.