Combined conductivity monitor and controller

- Darco Water Systems, Inc.

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Description

FIG. 1 is a perspective view of a combined conductivity monitor and controller embodying my design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and

FIG. 6 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
3371302 February 1968 Mas
3452252 June 1969 Mapham
3535667 October 1970 Harnish, Jr. et al.
3634804 January 1972 Mineo
4075676 February 21, 1978 Phillips, Jr.
Other references
  • Industrial Instruments Inc. Electrolytic Conductivity Equipment Cat. #27, 1963, p. 17, RGC-11-Conductivity Controller.
Patent History
Patent number: D271684
Type: Grant
Filed: Mar 10, 1980
Date of Patent: Dec 6, 1983
Assignee: Darco Water Systems, Inc. (Durham, NC)
Inventor: William J. Berry, Jr. (Durham, NC)
Primary Examiner: Susan J. Lucas
Application Number: 6/128,634
Classifications
Current U.S. Class: D13/11; D13/29
International Classification: D1303;