Electric heater

- Rakennusvalmiste Oy
Description

FIG. 1 is a front elevational view of an electric heater, showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is an elevational view of the opposite side thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevational view of a second embodiment of an electric heater;

FIG. 8 is a rear elevational view thereof;

FIG. 9 is a side elevational view thereof;

FIG. 10 is an elevational view of the opposite side thereof;

FIG. 11 is a top plan view thereof;

FIG. 12 is a bottom plan view thereof;

FIG. 13 is a front elevational view of a third embodiment of an electric heater;

FIG. 14 is a rear elevational view thereof;

FIG. 15 is a side elevational view thereof;

FIG. 16 is an elevational view of the opposite side thereof;

FIG. 17 is a top plan view thereof;

FIG. 18 is a bottom plan view thereof;

FIG. 19 is a front elevational view of a fourth embodiment of an electric heater;

FIG. 20 is a rear elevational view thereof;

FIG. 21 is a side elevational view thereof;

FIG. 22 is an elevational view of the opposite side thereof;

FIG. 23 is a top plan view thereof;

FIG. 24 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D157014 January 1950 Walker
D232028 July 1974 Beldarrain
3313920 April 1967 Gallez
3961157 June 1, 1976 Miller et al.
4294003 October 13, 1981 Coverstone
Patent History
Patent number: D287751
Type: Grant
Filed: Apr 24, 1984
Date of Patent: Jan 13, 1987
Assignee: Rakennusvalmiste Oy
Inventor: Ilkka Hamalainen (Helsinki)
Primary Examiner: Catherine E. Kemper
Law Firm: Andrus, Sceales, Starke & Sawall
Application Number: 6/603,446
Classifications
Current U.S. Class: D23/110