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Патент USA US3020392

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Feb. 6, 1962
H. E. HARRELL, JR
3,020,382
BASEBOARD ELECTRIC HEATER
Filed June 5, 1959
2 Sheets-Sheet 1
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INVENTOR.
HARRY E. HARRELL JR‘
BY
{\TTORNEYS
Feb. 6, 1962
H. E. HARRELL, JR
3,020,382
BASEBOARD ELECTRIC HEATER
Filed June 5, 1959
2 Sheets-Sheet 2
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INVENTOR.
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HARRY E. HARRELL, JR.
BY
ATTORNEYS
United States Patent "Nice
3,020,382 ‘
Patented Feb. 6, 1962
1
generally horizontal shaft 16. The rollers 15 arecon-p
3,020,382
Harry E. Harrell, Jr., 4028 NE. Prescott, Portland, Oreg.
cave in form and have a space 17 therebetween.‘
BASEBOARD ELECTRIC HEATER
Filed June 5, 1959, Ser. No. 818,338
A re?ector 18 is provided with slots 19 formed in its
back wall through which the saddles 13 extend when the re
‘
3 Claims. (Cl. 219-—34)
The present inventionrelates to an electric baseboard '
heater having air ?owing therearound.
fiector 18 is in place. When the re?ector 18 is assembled,
the upper edge 20 of the slots 19 rest in notches 21 formed
on the upper surface of the saddles 13, holding the re?ec
tor 18 in place.
The primary object of the invention is to provide a
I The heating element assembly E includes an elongated
heater having means for guiding the air circulating through 10 metallic tube 22, having a rod type insulator 23 encased
the heater. In the carrying out of this object, overheated
therein. The insulator 23 has longitudinal holes 24 run
areas adjacent the heater are eliminated, preventing dam
ning therethrough in which are positioned heating elements
age to drapes, furniture, walls and the like.
25. Longitudinally extending ribs 26 are formed on op
, A still further object of this invention is to provide a
positely disposed sides‘ of the tube 22. Oneof the ribs 26
heater of the class described above in which the air circu 15 registers with the space 17 between the supporting rollers
lates through the heater in a manner to radiate the heat
15, preventing the heat assembly E from rotating once it
outwardly directly into the room and not rearwardly into ~ has been installed within the saddles 13.
contact with the wall.
Disposed throughout the length of the heating element
Another object of thisinvention is to provide means for
E directly on the tube 22 are spaced parallel heat radiating
mounting a thermostat control within wiring compart 20 ?ns 27. The ?ns 27 have outwardly extending spacer ele
ments located on either end of the units and ‘within the
ments 28 integrally formed thereon for spacing adjacent
unit.
.
~
?ns 27 apart throughout the length of the element E. '
A further object of this invention is to provide a knock
After the heating element E is installed, a face grill
out plate adapted to be adjusted to align with the electric
outlet associated with the baseboard of the Wall.
'
A still further- object is to provide a baseboard electric
heater having mounting means for the heating element and
radiating ?ns for holding the same in a ?xed vertical posi
29 is brought into place, as illustrated in FIGURE 2 par
25 ticularly, and oppositely disposed clips 30 engage over
the upper and lower outer ends 31 of the saddles 13 hold
ing the grill 29 in place thereon. Openings, or slots, 32
are provided in the face of the grill 29 for allowing heat
tion at all times, while allowing for expansion and contrac
to radiate from the heating element E to the room to be
tion.
30 heated.
Other objects and advantages will become apparent
Located within the compartment 33 in one end of the
in the following speci?cation when considered in light of
heater H is a thermostat 34, which may be adjusted by
the attached drawings, in which:
means of an adjusting knob 35 located on the face of the
FIGURE 1 is a front elevation of the invention shown
heater H.
partially broken away for convenience of illustration;
35
In order to adapt the heater to various elevations of
FIGURE 2 is an enlarged vertical sectional view, taken
electric outlets within the baseboard, an adjustable knock
on line 2—-2 of FIGURE 1, looking in the direction of
out plate 36 is provided on the rear wall 14 at each end of
the arrows;
the housing It). The plate 36 is adjustable up and ‘down
FIGURE 3 is an enlarged fragmentary horizontal sec
by loosening the screws 37 threaded into the bracket 38.
tional view, taken on line 3-3 of FIGURE 1, looking in 40 The knock-out plates 36 may also be reversed from top to
the direction of the arrows;
bottom, providing for greater latitude of adjustment.
FIGURE 4 is an enlarged vertical sectional view, taken
FIGURES 9 and 10 illustrate a modi?ed knock-out
on line 4-4 of FIGURE 1, looking in the direction of the
plate 36A constructed to ?t over what is known as a
arrows;
FIGURE 5 is an exploded plan view of the baseboard 45
heater;
plastering ring (not shown) for electric outlet boxes.
The thermostat 34 is mounted on a removable cover
plate 34A and may be applied to either end of the heating
FIGURE 6 is a sectional view similar to FIGURE 2
unit H, depending upon the installation involved. The
with the parts exploded;
thermostat 34 is installed and wired within the unit. A
FIGURE 7 is a perspective view of one of the heat
cover plate 39 is used for covering the opposite compart
radiating ?ns shown removed from the heating element; 50 ment 33 not being used by the thermostat 34.
FIGURE 8 is a fragmentary sectional View taken on
The operation of this new and improved baseboard elec
line 8--8 of FIGURE 4, looking. in the direction of the
tric heater H will now be described. Cool air enters the
arrows;
opening 40 between the re?ector 18 and the base 11., pass
FIGURE 9 is a view similar to FIGURE 4 of a modi?ed
ing up through the space 41 between the re?ector 18 and
form of the invention; and
the rear wall 14 and then through the space 42 above
FIGURE 10 is a fragmentary sectional view taken on
the re?ector 18 and out through the elongated slot open
line 10—~10 of FIGURE 9, looking in the direction of the
ing 43 into the room to be heated.
arrows.
The path of this air passes between the heat that would
Referring now to the drawings in detail wherein like
be de?ected back into the wall and carries the heat out into
reference characters indicate like parts throughout the 60 the room. The bulk of the air to be heated enters the elon-‘
several ?gures, the reference character H indicates gen
gated opening 44 separately, passes up between the heat erally an electric baseboard heater constructed in accord
radiating ?ns 27 in front of the rear wall 44 of the re?ec
ance with the invention.
a
tor 18, out through the slotted opening 46 into the room
The baseboard heater H includes an elongated generally
to be heated, and as stated above some of the heat radiates
rectangular housing 10 having an outwardly extending 65 directly out through the openings 32 of the grill 29 di
base 11 on its lower edge and an outwardly extending cap
rectly from the heating element B.
or air de?ector 12 on its upper edge. A pair of outwardly
One advantageous feature of this new and improved
extending saddle. members 13 are ?xedly secured to the
rear wall 14 of the housing 10 in spaced parallel relation,
baseboard heater H is to direct a separate air stream of
70 cool air under and behind the heat re?ector 18 next to the
preferably by spot welding. A pair of rollers 15 are jour
wall surface, to absorb any heat radiated from the rear of
nalled to the lower portion of each of the saddles 13 on a
the‘ re?ector 18 carrying the same out with a stream of air
3,020,382
4
3
into the room to be heated, this air not at any time com
said compartments and means are provided in said com
ing in direct contact with the heating element.
Having thus described the preferred embodiments of
partments for securing said knockout plate therein permit~
ting vertical and longitudinal adjustment thereof.
the invention, it should be understood that numerous struc
tural modi?cations and adaptations may be resorted to
3. A device as claimed in claim 1 wherein said anti
friction means comprises a shaft mounted on each of said
saddle members with its axis extending generally hori
without departing from the scope of the appended claims.
What is claimed is:
, zontally, and a pair of spaced apart rollers journalled on
each of said shafts in supporting relation to said electric
1. A baseboard electric heater comprising a generally
resistance heater.
rectangular housing having an upright rear wall, a bottom
wall integrally formed thereon and extending forwardly 10
References Cited in the ?le of this patent
thereof and a top wall integrally formed thereon and ex‘
tending forwardly thereof, said housing having a pair of
compartments formed at opposite ends thereof, a pair of
spaced apart parallel saddle members secured to said rear
wall and extending forwardly therefrom, an elongated
electric resistance heater extending longitudinally of said
housing, anti-friction means on said saddles supporting
UNITED STATES PATENTS
1,672,683
1,722,430
1,737,718
1,906,670
Knoderer _____________ __ June 5,
Kelly _______________ __ July 30,
Hausmann ____________ __ Dec. 3,
Thomas ______________ __ May 2,
1928
1929
1929
1933
Thomas ______ a. _____ _- May 30, 1933
said heater for longitudinal expansion movement, a re?ec
1,911,407
tor supported on said saddle members within said housing
2,574,382
Falson _____________ __,_.. Nov. 6, 1951
in spaced relation to said housing to provide an air pas
sage between said housing and said reflector, and a grill
supported on said saddle members forwardly of said elec
tric resistance heater.
2,799,763
Hicks ______ __ _______ __ July 16, 1957
2,815,431
2,835,478
Paley ________________ __ Dec. 3, 1957
Bemish ______________ __ May 20, 1958
2,861,167
‘Nick _____ _________ ____ Nov. 18, 1958
2. A device as claimed in claim 1 wherein a knockout
2,899,529
2,954,456
Calhoun _____________ _,_ Aug. 11, 1959
Calhoun et a1 _________ __ Sept. 27, 1960
plate is positioned against said rear wall within each of 25
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