US2468217A - Electrical heating unit - Google Patents

Electrical heating unit Download PDF

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US2468217A
US2468217A US26892A US2689248A US2468217A US 2468217 A US2468217 A US 2468217A US 26892 A US26892 A US 26892A US 2689248 A US2689248 A US 2689248A US 2468217 A US2468217 A US 2468217A
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air
heating unit
heat
unit
heating
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US26892A
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Maller John
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Maller John
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H3/00Air heaters having heat generating means
    • F24H3/02Air heaters having heat generating means with forced circulation
    • F24H3/04Air heaters having heat generating means with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405Air heaters having heat generating means with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0411Air heaters having heat generating means with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems

Description

April 1949- J. MALLER ELECTRICAL HEATING UNIT Filed May 15, 1948 INVENTOR. MALLER JOHN I ATTORNEY Patented Apr. 26, 1949 UNITED STATES ATENT OFFICE ELECTRICAL HEATING UNIT John Mailer, Aberdeen, Wash. Application May 13, 1948, Serial No. 26,892
7 Claims.
This invention relates to improvements in electrical heating units and is particularly adapted to fireplaces.
My new and improved electric heating unit is adapted to be installed within fireplaces, or it may be installed in homes without a fireplace but having a recess within the wall of the building for receiving the same.
In the case of installing my fireplace in buildings where no previous fireplace existed a trim may be placed around my unit representing a fireplace, although I do not wish to be limited to any particular method of installing the same Within the building, as the objects of my invention may be carried out in various types of installation.
The primary object of my invention is to circulate air into and through my new and improved electric heating unit. This air coming in the bottom of the unit entering a preheated chamber, in which is installed an air circulator, the air then being delivered out through this preheated chamber into the surrounding area.
A further object of my invention is the provision of a. special preheating chamber which absorbs heat from an electrical heating element after which the heat is distributed by a forced air stream to the areas to be heated.
A still further object of my invention is the providing of an electrical heating unit that will circulate the air in the space to be heated.
Another object of my invention is the controlling of the heating elements independently of the air circulating unit so that these elements may be either on or off while the air is in motion.
These and other incidental objects will be ap parent in the drawings, specification and claims.
Referring to the drawings:
Figure 1 is a front view of my new and improved electric heating unit installed within a cnventional fireplace.
Figure 2 is a sectional view taken on the line 2-2 of Figure 1 through the electrical heating unit, the surrounding fireplace being indicated by broken lines.
Figure 3 is a sectional plan View of my new and improved electrical heating unit taken on line 33 of Figure 2, particularly illustrating the wiring, the damper control and the relative position of the various elements.
Figure 4 is a side view of my new and improved electrical heating unit.
Referring more specifically to the drawings:
My new and improved electric heating unit is indicated in general by numeral I, installed in a fireplace 2, referring to Figure 1, the said fireplace being indicated by broken lines in Figure 2 for convenience of illustration.
My electric heating unit consists of a sheet metal housing or casing 3, open at its front 4 and having a trim flange 5 associated therewith. This housing consists of two parts, the forward chamber 6 and the rear chamber 1 divided by the partitions or wall 8, best illustrated in Figures 2 and 3. The lower edge of the wall 8 terminates in a sub-base 9 spaced away from the bottom ll] of the unit as by the passageway ll. The passageway H has a grille l2 located at its forward end parallel to the front 4 of the electric unit facing the interior of the room to be heated.
The rear end l3 of the passageway communicates with the lower part of the chamber 1. The chamber 7 is heated by the electric elements l4 through the partition or wall 8 which transfers the heat from the element into the heat receiving and dissipating material IS. The material l5 consists preferably of sheet rock which has the ability to absorb heat from the partition or plate 8 dissipating the same into the chamber 1.
I have provided a fan t6 for circulating air from the room to be heated through the grille l2, passageway ll up through the heated chamber 1 and out the adjustable dampers l1 and the grilles l8, best illustrated in Figures 1 and 2. The dampers I l consist of cross slats I!) which are secured to the shafts 20, which are rotatably mounted within the unit I at 2| and 22, referring to Figure 3. These shafts are connected together by arms 23 and links 2 gether.
An arm 25 is secured to one of the shafts 20 and to the control rod 26. By operating the control rod 26 manually the shutters It can be opened or closed depending upon the amount of air desired to be allowed to pass through the damper IT. The grilles I8 allow air to pass through picking up heated air being directly radiated from the heating element I4.
I have provided an ornamental grille 21 for hiding the heat elements M from view. The rear of this grille may consist of a reflecting material so that additional heat may be reflected back through the partition or plate 8, which in turn will be absorbed by the sheet rock l4 and dissipated into the air stream within the chamber 1.
The electric motor fan unit It receives its electrical energy through the wiring 28 and switch controls 29 and 30 from the main supply line 31. The heating element l4 also receives its electrical so that they will work toenergy from the line 3i through the switch control box 30.
I will now describe the operation of my new and improved electric heating unit adapted to be used in connection with fireplaces and the like. In the event it is desired to heat the room the switches 29 and 39 are turned on. This supplies electric energy to the heating element Id. We will assurmfrom-the switch Bil; which maybe of a type"for 'various'fidegrees of heat. Wewill also assume that when this switch was turned on the circulating fan I6 is brought into action.
The electric heating element will then heat the partition 8 transferring the said heatinto' thesaid rock material l5 and as fresh airispulled 5,
through the grille I2 through the passageway ll up into the chamber 1 by the electric fan" l fithis air will be heated by the heat dissipated from the sheet rock material-45. This air will then be forced out through the damper l1 and the grilles l8 into the'room to"be 'heated. 'lhere will of c'ourse be a certain amount of heat picked up from the outer edges-ofthe heating element em-t -it is one of -theobjectsof my invention nct' tc'r pass an air"'stream through the heating element directly; as by doingso'considerableheah ing effi ciency islost.
"Theprinciple" feature of* my invention "is the radiation-wot heat" fr'om the heating element is throughi'the wall? 8' and into the sheet rock= l 5,-- which then is ipi'ck'ed up by the air stream; By this imethod' I achieve considerable efficiency" which-cannot be doneiby circulating air through the: heating :unit itself.
As stated above :the' rear of: the ornamental grille-:2] maysact asa reflector directing 't'h'eheat from the" heating element more" completely through rtheirear wall '8=T ofthe* unit and into-l the sheet rock insulating; sheet 'I 5. When it is de= sired: tocirculate't'air alone theswitcln-Sil may be turned off :and the switch :29- employed to operate the rcirculating: fan on'ly:
WhileLhaveshownmy-heating unit 'adaptedto fit into a fireplace, I do not wish to be' limited to this particular adaptation of my; invention, as my; unit earths-installed ina portable-cabinet in which case the unit itself consisting 'Tof the housinga3 and the chamber 1 'maybe insulated-n the" outsidef-thereof' so to conserve the: heat'developed therein. In my drawings I rhave-"not-iil lustr-ated the: same insulated; as the fireplaceit self provides a'gOOdinsulator, although thesame could have an insulation sheet completely: therearound. Access to the circulating fan 16 maybehad through the door 32 communicating with the chamber- 1.
What I claim is:
1. An electric heater, comprising a casing having an open front, a partition dividing said easing into front and rear compartments the rear side of said partition having a covering of heat absorbing and dispensing material, an opening in the top of said partition for communication between said compartments, an electric heating elementin said front compartment adjacent said partition for'radiating heat to saidpitrtition, and means in said rear compartment for directing air upwardly along said partition to be heated and pass outwardly through the opening in said partition into said front compartment and out through the open front thereof.
2. A heater as defined in claim 1, wherein a reflecting screen is positioned in front of said heating element to reflect heat back to said partition.
3. A heater as defined in claim 2, wherein a horizontal partition separatessaid'front compartment from the bottom of said casing to form" a passageway from the front of said'casingto the rear compartment for-supplying fair thereto.
4. A heater as defined in claim'3, wherein said" casing is formed to fit in a fireplace 'an'd h'asai laterally extending flange at the sides and" top for overlying the front wall of "the' fireplace.
5. A heater as defined in-claim 4, wherein said vertical partition has openings in 'the'side portions thereof to pass air outwardly from saidrear'co'mpartment-past the sides 'of the heating "element.
6. A heater as defined in claim" 5, wherein" dampers are rotatably supported at said vertical partition to control the top "opening" and have levers connected thereto, and a controlrod'" is connected to said levers and extends through'said flange on one side of said-casing'forthe selective controlof said dampers.
'7. A heater asdefinedin claim 6; wherein said rear compartment air directing means comprises an electrically driven fan, and switches are mounted in said flange onone 'side 'o'f said casing for controlling'said fan and said heating "element respectively. V
JOHN" REFERENCES The following. references 1 are of record in the 7 file of this patent:
UNITED STATES PATENTS"
US26892A 1948-05-13 1948-05-13 Electrical heating unit Expired - Lifetime US2468217A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542670A (en) * 1946-08-21 1951-02-20 Elson M Harter Air conditioning fireplace
US2708232A (en) * 1954-06-15 1955-05-10 Nu Tone Inc Ceiling heater

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1518067A (en) * 1922-07-17 1924-12-02 Hicks William Wesley Electric heater
US1908559A (en) * 1929-10-25 1933-05-09 Roser Edmund Radiator
US1986350A (en) * 1931-10-01 1935-01-01 Markel Electric Products Inc Electric heater
US2131484A (en) * 1935-07-18 1938-09-27 Ringwald Clarence Heater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1518067A (en) * 1922-07-17 1924-12-02 Hicks William Wesley Electric heater
US1908559A (en) * 1929-10-25 1933-05-09 Roser Edmund Radiator
US1986350A (en) * 1931-10-01 1935-01-01 Markel Electric Products Inc Electric heater
US2131484A (en) * 1935-07-18 1938-09-27 Ringwald Clarence Heater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542670A (en) * 1946-08-21 1951-02-20 Elson M Harter Air conditioning fireplace
US2708232A (en) * 1954-06-15 1955-05-10 Nu Tone Inc Ceiling heater

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