Relay control

- Watlow/Winona, Inc.
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Description

FIG. 1 is a front elevational view of a relay control showing our new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a bottom plan view;

FIG. 5 is a top plan view; and

FIG. 6 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D163885 July 1951 McFarland
D186997 January 1960 Claus
D187390 March 1960 Claus
D201914 August 1965 Monson
D238583 January 1976 Russell
D248092 June 6, 1978 Fujita et al.
D248149 June 13, 1978 Fujita et al.
D253044 October 2, 1979 Hewson
2564322 August 1951 Brosseau et al.
3140372 July 1964 Randolph et al.
3251549 May 1966 Hewitt, Jr. et al.
3670284 June 1972 Fortier et al.
3823547 July 1974 Hutterstrum et al.
4171769 October 23, 1979 Trimpey
Other references
  • Crouzet, Octal Cycle, Progress Timer, 10/1979, cover page.
Patent History
Patent number: D312581
Type: Grant
Filed: May 5, 1988
Date of Patent: Dec 4, 1990
Assignee: Watlow/Winona, Inc. (Winona, MN)
Inventors: Jerry Klaves (Kenosha, WI), Ted VonArx (LaCrescent, MN)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Attorney: Hugh D. Jaeger
Application Number: 7/190,524
Classifications
Current U.S. Class: Temperature Regulator Or Thermostat (D10/50)