Thermostatic electric connector plug

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Description

FIG. 1 is a top front perspective view of a thermostatic electric connector plug showing our new design;

FIG. 2 is a top and right side perspective view thereof;

FIG. 3 is a left side elevational view thereof on an enlarged scale;

FIG. 4 is a fragmentary sectional view as taken from line 4--4 of FIG. 3;

FIG. 5 is a front elevational view thereof on an enlarged scale;

FIG. 6 is a rear elevational view thereof on an enlarged scale;

FIG. 7 is a bottom plan view thereof on an enlarged scale.

The electric connector cord is shown broken away to show indeterminate length and for ease of illustration.

Referenced Cited
U.S. Patent Documents
D186318 October 1959 Wickenberg
D193618 September 1962 Reed
D228461 September 1973 Boldt
Foreign Patent Documents
792,453 March 1958 UK
863,118 March 1961 UK
Other references
  • Home Furnishings Daily-8/17/61-p. 26-Fry Pan Probe-at top left. Home Furnishings Daily-9/29/60-p. 21-Appliance Probe at left-center. Premium Practice-1/60-p. 116-Cook control at top right. Housewares Review-3/57-p. 2-Control at bottom.
Patent History
Patent number: D248017
Type: Grant
Filed: Nov 5, 1976
Date of Patent: May 30, 1978
Assignee: National Presto Industries, Inc. (Eau Claire, WI)
Inventors: Melvin H. Boldt (Glenview, IL), Thurber H. Morrison (Evanston, IL), Robert W. Becker (Naperville, IL)
Primary Examiner: Nelson C. Holtje
Attorney: John A. Dienner
Application Number: 5/739,181
Classifications
Current U.S. Class: Temperature Regulator Or Thermostat (D10/50)
International Classification: D1004;