Sheathed electric heating element

- Emerson Electric Co.
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Description

FIG. 1 is a top plan view of a sheathed electric heating element, showing my new design,

FIG. 2 is a side elevational view thereof,

FIG. 3 is a rear elevational view thereof, looking from the right side of FIG. 2 and

FIG. 4 is a front elevational view thereof, looking from the left side of FIG. 2.

Referenced Cited
U.S. Patent Documents
2196484 April 1940 Wentworth
2830363 April 1958 Reiter
2831909 April 1958 Siefert
3086187 April 1963 Duggan et al.
3354294 November 1967 Kollar et al.
3673385 June 1972 Drugmand et al.
Other references
  • Chromalox Catalog of Industrial Heating Products, p. 55--Immersion Heaters.
Patent History
Patent number: D266414
Type: Grant
Filed: Apr 14, 1980
Date of Patent: Oct 5, 1982
Assignee: Emerson Electric Co. (St. Louis, MO)
Inventor: Richard W. Brent (Pittsburgh, PA)
Primary Examiner: Susan J. Lucas
Attorney: Michael Williams
Application Number: 6/140,140
Classifications
Current U.S. Class: D13/21; D23/87; D23/127
International Classification: D1399; D2303;