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' Oct. 29, 1946.
2,410,211
J. J. GOUGH
RORTABLE ELECTRIC HEATER
Filed July 8, 1944
, 2 Sheets-Sheet 1'
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‘IN VEN TOR.
BY
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Oct. 29, 1946.
-
J, J, GQUGH
A
_
2,410,211
PORTABLE ELECTRIC HEATER‘
Filed July 8, 1944
2 Sheets-Sheet 2
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INENTOR.
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,BY
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2,410,211
Patented Oct. 29,}1946
‘UNITED STATES PATENT ‘OFFICE
PORTABLE ELECTRIC HEATER
James J. Gough, Chicago, Ill._, assignor to Chicago
Electric Manufacturing Company, Chicago, 111.,
a corporation of Illinois ‘'
Application July 8, 1944, Serial No. 544,034 '
6 Claims.
(o1. 219-34) '
1
2.
The present invention relates to portable
electric heaters and more particularly to port
able electric room heaters of the type using both
radiation and convection to distribute the heat.
Previously it has been suggested to provide a
portable electric heater of the radiant energy
type with means for directing air which is to be
connection with the accompanying drawings
heated so as to obtain the advantage of dis
tributing heat by convection.
Particularly in
the case of portable electric heaters of the
radiation type, there has been the hazard of fire
wherein
.
Figure 1 is a perspective view of a portable
electric room heater constructed in accordance
with the present invention;
.
Figure 2 is a perspective view of the radiant
heat energy re?ector forming a part of the
heater shown in Figure l; .
Figure. 3 is a cross sectional view along the
lines 3-,~3 of Figure 1,;
Figure 4 is a cross sectional .view of the heater
as seen along the lines 4-—4 of Figure 3; and
Figure 5 he cross sectional view of the heater
close to such heaters. At times articles have
asseen along the line 5—5 of Figure 1,
been hung up to dry and a radiant type of heater
Referring to the drawings it will be seen that
has been placed so as to dry the articles. In 15
there has been provided an electric heater hav
such instances when the articles are placed
ing an. outer casing 10 supported by a plurality
rather close, they become heated by the concen
of members l2 so that the bottom of the heater
trated beam of energy to such an extent as to
is raised from the ?oor or the surface upon
burst into ?ame. In other instances of course
heaters may be placed too close, to draperies and 20 whichthe heater is placed. In the upper por
.tion of the housing It) there is positioned a cylin
upholstered furniture. It, therefore, would be
drical‘parabolic re?ector I 4 having closed ends.
desirable to reduce or eliminate the possibility of
The re?ector i4 is shown in detail in the per
the ?re hazard heretofore encountered with
spective view of Figure 2. In front of the
portable electric room heaters.
In accordance with the present invention the
parabolic ‘re?ector l4 thereismounted a pro
tective grill .IS. A cylindrical electric heating
entire outer casing for the room heater is main
element I8 is positioned atabout the focal point
tained at a relatively low temperature and a
of the parabolic re?ector H.
stream of air is forced forwardly of the re?ected
The parabolic re?ector I4 is provided with a
radiant energy from the heater so that even if
plurality of louver-like openings 20 each having
the heater is used for drying apparel, there will
aforwardly extending ?n portion 22 so arranged
be no danger of the apparel reaching such tem
that air supplied from in back of the re?ector
perature when dry as to create a ?re hazard.
Will be directed forwardly .in directions generally
In accordance with the present invention air
parallel to the re?ected radiant energy from the
is drawn from adjacent the floor or the bottom
heater l8. The top end.“ of the re?ector l4
of the heater and directed upwardly between the
may also be provided with a plurality of open
outer casing and the re?ector for the heating
lugs 26 having angularly extending .?n portions
element and directed outwardly through suitable
28, so that air passing through the openings will
openings in the re?ector so that the air stream
be directed forwardly toward the front of the
will be generally parallel to the direction of the
re?ected radiant energy from the heating ele 40 heater.
VPreferably thev parabolic re?ector I4 is sup
ment.
ported by‘ thehouslng ill at the forward edge of
It, therefore, is an object of the present in
,the re?ector. The remainder of the re?ector I4
vention to provide an improved portable electric
is arranged in spaced apart relation with respect
room heater.
45 to the sides and ,top of the outer casing in. The
It is another object of the present invention
re?ector l4_may have the top 24 and the bottom
to provide an improved portable electric room
30 (secured to the parabolic .portion of the re
heater utilizing both convection and radiation.
?ector in‘any suitablemanner although it has
t is still another object of the present inven~
‘been found relatively simple to fasten these parts
tion to provide an improved portable ‘electric 50 together by a plurality of bolts 32. The heater l8
room heater which is much safer to use and
extends between the upper and lower ends 24 and
which materially reduces ?re hazard.
,
30 of the re?ector l 4 and maybe retained in posi-.
_ Other and further objects of the present in
tion by. a plurality of screw members 33. Suitable
vention subsequently will become apparent by
electric conductors extend from the heating ele
starting when in?ammable material is placed
reference tothe following ‘description taken in to ment lB- to insulated binding posts 34 which in
2,410,211
'
‘
3
4
turn are connected to electric conductors 36 con
nected to an extension cord 38 which passes
cent the bottom thereof, an electric heating ele
ment mounted within the upper portion of said
through a suitable grommet 40 in the back of v
housing, a cylindrical parabolic re?ector posi
the housing I'D.
tioned about said element in spaced relation to
As may be seen from Figures 3 and 5 the bot 5 said housing, said re?ector being provided with
tom 42 of the outer casing I0 is provided with a
a plurality of generally longitudinal louver-like
plurality of openings 44 so that air may be drawn
air passages for discharging air parallel to the
in to the interior of the housing l0 by a suitable
direction of the re?ected heat rays, and an elec
fan 46 driven by a motor 48 supported upon a
tric fan mounted within said housing for produc
cross member 50 secured to the bottom 42 by 10 ing a forced air circulation between said re?ector
and said housing.
bolts 52. The fan 46 preferably is arranged to
operate within a cylindrical member 54 which
2. A portable electric room heater comprising
serves to increase the e?iciency of the fan and
an electric heating element mounted in a re
to assist directing upwardly air entering through
?ector, a housing connected to the outer edges
the openings 44 in the bottom 42 of the housing 15 of said re?ector and arranged in spaced relation
I0. By suitable connections with the electric cord
to the remainder of said re?ector, an air inlet
38 electrical energy is supplied to the electric fan
for said housing, a plurality of louver-like air
motor 48 which is connected in parallel with the
outlets arranged in said reflector to permit pas
electrical heating element l8. At the rear the
sage of air from within said housing in a direction
outer casing l0 may be provided with a suitable
generally parallel to the direction of the heat rays
handle 56 so that the heater may be readily trans
re?ected by said reflector, and means for causing
ported from place to place.
air from said inlet to be circulated between said
re?ector and said housing and to be discharged
When the end of the electric cord 38 is plugged
through said re?ector air passages.
into an electric outlet or receptacle, energy is sup
plied to the electric heating element I8 and to the
3. A portable electric room heater comprising
electric fan motor 48. The fan motor 48 causes
an electric heating element mounted at the focal
the fan 46 to draw in air between the lower sup
point of a parabolic re?ector, a housing con
port members l2 through the openings 44 in the
nected to the outer edges of said re?ector and
bottom 42 of the outer casing Hi. The air passes
arranged in spaced relation to the remainder of
upwardly within the cylindrical member 54 into
the reflector, an air inlet adjacent the bottom of
the interior of the chamber l0 whereupon the air
said housing, a plurality of louver-like air pas
passes upwardly around the parabolic sides of the
sages arranged in said re?ector to direct air from
re?ector l4 and above the top 24 of the re?ector. . within said housing in directions generally
The air is discharged through a plurality of open
parallel to that of the heat rays reflected by said
ings 20 and 26 in the parabolic re?ector and in
re?ector, and means mounted within said housing
the upper end so that air moves forwardly
for causing air from said inlet to be circulated
through the protective grill l6 into the room.
between said re?ector and said housing and to be
The punched out portions remaining as a result of
discharged through the passages in said re?ector.
the formation of the openings 20 are each ar
4. A portable electric room heater for heating
ranged to be on the side of the opening 20 nearest 40 by radiation and convection comprising a cylin
the electrical heating element l8 so as to tend to
drical parabolic reflector having closed ends, a
prevent the air from striking directly against the
cylindrical electric heating element mounted in
element l8. Each of the ?n-like portions 22 ex
substantially the focal point of said re?ector, a
tend forwardly so that the air moves in directions
metal housing for said re?ector, said housing en
gaging the forward edges of said re?ector and
generally parallel to the direction of the re?ected
radiant energy. Since the air is continually
supporting the remainder of said re?ector in
spaced relation to said housing, a plurality of
moving through the inner chamber 10 the casing
supports for said housing to support the bottom
will never reach a temperature sufficiently high
thereof in spaced relation to a surface upon
as to constitute a ?re hazard. If the room heater
is placed so as to be close to materials such as 50 which said heater is placed, an air inlet located
adjacent said bottom to permit air to circulate
draperies or clothes being dried, the continual
in said housing about said reflector, and a plu
movement of the air from the heater will be
ralityof vertical louver-like openings spaced about
sufiicient to prevent the material from acquiring
the parabolic portion of said re?ector to permit
a hot spot sufficient to scorch or ignite the ma
terial. Furthermore the movement of the air 55 air to be discharged from inside said housing.
5. A portable electric room heater for heating
through the housing I 0 cools the housing suiii
by radiation and convection comprising a cylin
ciently at all times so that accidental engagement
drical parabolic re?ector having closed ends, a
with the outer housing will not cause any injury
to any person. When the heater is placed so as
cylindrical electric heating element mounted at
to face an individual, the action of the forced air 60 substantially the focal point of said re?ector, a
distributes the heat so that only a pleasant sen
sation is experienced by the individual. The air
metal housing for said re?ector, said housing
adjacent the upper portion thereof engaging the
forward edges of said re?ector and supporting
action also accelerates the more even rise of
temperature in all parts of the room.
65 the remainder of said re?ector in spaced rela
While for the purpose of describing and illus
tion to said housing, a plurality of supports for
trating the present invention a certain speci?c
supporting the bottom of said housing in spaced
embodiment has been disclosed, it is to be under—
relation
to a surface upon which said heater is
stood that the invention is not to be limited
placed, an air inlet located in said bottom, a
thereby since obviously such variations are con
templated as may be commensurate with the 70 plurality of vertical louver-like openings spaced
about the parabolic portion of said re?ector, anrl
spirit and scope of the invention as de?ned in
an electric fan mounted within said housing ad
the appended claims.
jacent said bottom for circulating air within said
This invention is hereby claimed as follows:
housing about said re?ector and discharging said
1. A portable electric room heater comprising
a closed outer housing having an air inlet adja 75 air through said louver-like openings in directions
2,410,211
substantially parallel to the re?ected radiant
energy from said heating element.
6. A portable electric room heater for heating
by radiation and convection comprising a cylin
drical parabolic re?ector having closed ends, a
cylindrical electric heating element mounted at
the focal point of said re?ector, a metal housing
for said re?ector, said housing engaging the for
ward edges of said re?ector and supporting the
6
mounted within said housing adjacent said bot
tom for causing air to circulate within said hous
ing about said re?ector, and a plurality of air
outlets formed in said re?ector, said air outlets
being arranged in spaced relation to each other
and in spaced relation to said heating element,
each air outlet being formed so as to have a for
wardly projecting ba?ie ?n member to prevent
the air from said outlets from impinging directly
remainder of said re?ector in spaced relation'to 10 upon said heating element and to cause said air
to move substantially parallel to the re?ected
said housing, a plurality of supports for said hous
radiant energy from said heating element.
ing to support the bottom thereof in spaced rela
tion to a surface upon which said heater is placed,
an air inlet located in said bottom, an electric fan
JAMES J. GOUGH.
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