Portable electric convection heater

- Slant/Fin Corporation
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Description

FIG. 1 is a front perspective view taken from above and showing the top and right end of the portable electrical convection heater according to my new design, the rear view being a mirror image of the front view;

FIG. 2 is a left end elevation view thereof; and

FIG. 3 is a bottom plan view thereof, on a reduced scale.

Referenced Cited
U.S. Patent Documents
D157834 March 1950 Bourner
D159489 August 1950 Jones
4307284 December 22, 1981 Perron
Foreign Patent Documents
811478 August 1951 DEX
529694 December 1921 FRX
229552 February 1944 CHX
Other references
  • Electrical Merchandising, Jan. 1947, p. 231, Overblast Convection Heater, upper left side of page.
Patent History
Patent number: D311951
Type: Grant
Filed: Dec 21, 1988
Date of Patent: Nov 6, 1990
Assignee: Slant/Fin Corporation (Greenvale, NY)
Inventor: Melvin Dubin (Great Neck, NY)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Attorney: Herbert Dubno
Application Number: 7/288,404
Classifications
Current U.S. Class: Heating Element Protected By Grille, Grid, Etc. (D23/335)