US2852657A - Heater - Google Patents

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Publication number
US2852657A
US2852657A US675680A US67568057A US2852657A US 2852657 A US2852657 A US 2852657A US 675680 A US675680 A US 675680A US 67568057 A US67568057 A US 67568057A US 2852657 A US2852657 A US 2852657A
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United States
Prior art keywords
heater
elements
air
air stream
control
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Expired - Lifetime
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US675680A
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Morris L Markel
Grant Cuthbert
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Markel Electric Products Inc
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Markel Electric Products Inc
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Priority to US675680A priority Critical patent/US2852657A/en
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Publication of US2852657A publication Critical patent/US2852657A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters 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
    • F24H3/0411—Air heaters 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

Definitions

  • This invention relates to heater-aand-v more particularly to. an electric wall heater having, any enclosed blower means.
  • rll1e-heater of the present invention is especially Well suited foi mounting in a wall whereinthe frontsurface of the heater will be substantially llush with the surface of the wall.
  • the heater utilizes both radiant and forced convection heating principles, and among the features which characterize the invention, is the manner of directing air llow through the heater to form two air streams, one of which passes over the rear surface of a reflector and outwardly of the heater, the other of which passes about the heater controls for the cooling thereof during heater operation.
  • Another feature relates to means for directing the heater air stream outwardly from the heater to avoid damage to a papered wall surface.
  • Still another feature resides in the arrangement of the control chamber wherein cooling air is jetted downwardly through openings formed in the underside of a forwardly projecting nose located on the front surface of the heater.
  • the main object of this invention is to provide an electric heater which utilizes both radiant and forced convection principles for heating.
  • Still another object is to provide an electric heater which will automatically maintain a predetermined room temperature.
  • Another object of this invention is to provide an electric heater wherein air llow therethrough is divided into two streams, one for cooling the heater controls, the other of which passes over the rear surface of a reilector prior to being blown from the heater.
  • a further object of the invention is to provide an electric wall heater wherein the air being blown from the heater is deected so that it does not blow upon the surrounding wall surface.
  • Fig. l is a front View of a heater embodying the principles of the invention.
  • Fig. 2 is a section View generally as seen along line 2'-2 in Fig. l;
  • Fig. 3 is a section view generally as seen along line 3-3 in Fig. 2;
  • Fig. 4 is a section view generally as seen along line 4-4 in Fig. 2;
  • Fig. 5 is a section view generally as seen along line 5-5 in Fig. 2.
  • numeral 6 identifies a heater unit representing an embodiment of the invention, which heater includes a front panel 7, a wall insert box 8, side panels 9 and a baille panel 11.
  • a reflector 12 having curved sections 13 and 14 extending horizontally within the heater, opens unto an opening 16 formed in the front panel 7.
  • Three tie rods are used to maintain the rellector within the box 8.
  • a screen, or guard 17 is arranged in the opening 16, the upper end H'latent *ice vof the guard being maintained by the bale panel 11 while the lower end is aillxed to the front panel, by fastening means, Such as screws 18.
  • a venturiplate 25 is arranged about the fan, 22A for channeling the incoming air stream. Part vofthe upward flowing airpassesrthrough a hole 24 formed inthe upper surface of the baille panel 11, andenters a chamber .26 ⁇ in which control elements 27 and 28 are located. Theair stream passes aboutthe control elements, tovthereby cool them, ⁇ and leaves, the chamber 26 downwardly via holes 30 formed in a forwardly projecting nose 33, arranged on the front panel 7.
  • the control element 27 is operable to establish an electrical circuit through the heater elements 19 and the motor 21.
  • Control element 28 is a thermostatically controlled rheostat operable for completion of the electrical circuit through the heater elements 19 and electric motor 21.
  • the thermostat control 28 is operated by a liquid filled thermometer-like bulb 29, located in the air stream behind the fan 22.
  • the control element 28 may be set to provide and maintain a predetermined intake air temperature; for example, if the control is set for say the circuit in the control element 28 will be open when the incoming air stream exceeds said predetermined temperature, to thereby discontinue operation of the heater unit. However, once the air temperature drops below the preset temperature, the circuit through the control element 28 will be completed, and heater operation will take place.
  • a pair of brackets 31 are secured to the top and bottom of box 8 whereby the heater may be mounted within a wall between the studs thereof.
  • a hole 32 is provided in the top surface of the box 8, which may be used for bringing in the power lines for connection to the control elements.
  • the heater of the invention may be conveniently installed in a wall, and may be operated for automatically regulating the air temperature in a room.
  • Other features as described serve to fulfill the objectives as set forth in the beginning of this disclosure.
  • a heater comprising heater elements arranged in a reflector, a blower means for moving an air stream through the heater and around the rellector on the side opposite the heater elements, control means for operation of the heater elements and blower means, and means to divide the air stream into two paths one of which llows past the control means.
  • An electric heater comprising heater elements arranged in a reilector, a blower means for moving an air stream through the heater and around the rellector onA the side opposite the heater elements, control means for operation of the heater elements and blower means, a thermostat means for operation of the control means in on the side opposite the heater elements, a pair of conf trol elements for operation of the heater elements and the motor, one of said control elements adapted to disrupt ow ofl electric current to the heater elements and motor when the temperature of the air stream exceeds a predetermined value, and means to divide the air stream into two paths one of which flows past the control ele ments.
  • An electric wall heater comprising a box, a front panel secured to the box and being formed to provide an opening having a covering grille, a pair of electrical heater elements horizontally disposed in said box, a relector having curved portions spaced from the heater elements and adapted to reflect heat rays from the heater elements outwardly ,of the box via the grille covered opening, a'motor having a fan operable for moving an air stream from a venturi opening at the lower part of the heater, past the back of the reflector, and outwardly of the heater via the grille covered opening, a baille plate for directing the air stream upwardly in the heater, and a pair of electrical control elements arranged in a chamber formed at the top of the heater, said control elements adapted for completing electric circuits through the heater elements and the motor, one of said control elements having a thermostat means arranged in said air stream adapted to disrupt the circuit through the control element when the temperature of the air stream exceeds a predetermined value, said baile plate being arranged to direct a certain part

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Description

Sept 16, 1958 M. MARKEL ETAL HEATER Filed Aug. l, 1957 y lNVENTOR.
M M M .BY mwe- L HEATER Morris lL. Markel, Tonawanda, and CuthbertV Grant, Eggertsville, N. Y., assgnorsV to-Markel Electric lrod ucts, Inc., Buffalo, N.,Y.., a-corporationl of Newk York Application August 1, 1957, Serial No., 67,5,68,0
4 Claims. (Cl. 219-39) This invention relates to heater-aand-v more particularly to. an electric wall heater having, any enclosed blower means.
rll1e-heater of the present invention, is especially Well suited foi mounting in a wall whereinthe frontsurface of the heater will be substantially llush with the surface of the wall. The heater utilizes both radiant and forced convection heating principles, and among the features which characterize the invention, is the manner of directing air llow through the heater to form two air streams, one of which passes over the rear surface of a reflector and outwardly of the heater, the other of which passes about the heater controls for the cooling thereof during heater operation. Another feature relates to means for directing the heater air stream outwardly from the heater to avoid damage to a papered wall surface. Still another feature resides in the arrangement of the control chamber wherein cooling air is jetted downwardly through openings formed in the underside of a forwardly projecting nose located on the front surface of the heater.
The main object of this invention is to provide an electric heater which utilizes both radiant and forced convection principles for heating.
Still another object is to provide an electric heater which will automatically maintain a predetermined room temperature.
Another object of this invention is to provide an electric heater wherein air llow therethrough is divided into two streams, one for cooling the heater controls, the other of which passes over the rear surface of a reilector prior to being blown from the heater.
A further object of the invention is to provide an electric wall heater wherein the air being blown from the heater is deected so that it does not blow upon the surrounding wall surface.
These and further objects and features of the invention will become more apparent from the following description and the accompanying drawing wherein:
Fig. l is a front View of a heater embodying the principles of the invention;
Fig. 2 is a section View generally as seen along line 2'-2 in Fig. l;
Fig. 3 is a section view generally as seen along line 3-3 in Fig. 2;
Fig. 4 is a section view generally as seen along line 4-4 in Fig. 2; and
Fig. 5 is a section view generally as seen along line 5-5 in Fig. 2.
Referring now to the drawing, numeral 6 identifies a heater unit representing an embodiment of the invention, which heater includes a front panel 7, a wall insert box 8, side panels 9 and a baille panel 11. A reflector 12, having curved sections 13 and 14 extending horizontally within the heater, opens unto an opening 16 formed in the front panel 7. Three tie rods are used to maintain the rellector within the box 8. A screen, or guard 17 is arranged in the opening 16, the upper end H'latent *ice vof the guard being maintained by the bale panel 11 while the lower end is aillxed to the front panel, by fastening means, Such as screws 18. Extending horizontally Within, and in= spaced relation to the curved sec,` tions 13 and 14.0f the rellector 12, are electrical heater elements 19, eachL of which consists of a resistance wire wound upon a ceramic core. Y
Located inthe lower region of box 8 is. an electric motor 21, having a fan 22 whichfunctions to draw air into the boxk 8, via a grille 23 formed in the front panel 7, and to blow the air upwardly behind the reector 12 andfrom where it is directed out of the box through the upper part ofthe guard 17. A venturiplate 25 is arranged about the fan, 22A for channeling the incoming air stream. Part vofthe upward flowing airpassesrthrough a hole 24 formed inthe upper surface of the baille panel 11, andenters a chamber .26` in which control elements 27 and 28 are located. Theair stream passes aboutthe control elements, tovthereby cool them,` and leaves, the chamber 26 downwardly via holes 30 formed in a forwardly projecting nose 33, arranged on the front panel 7.
The control element 27 is operable to establish an electrical circuit through the heater elements 19 and the motor 21. Control element 28 is a thermostatically controlled rheostat operable for completion of the electrical circuit through the heater elements 19 and electric motor 21. The thermostat control 28 is operated by a liquid filled thermometer-like bulb 29, located in the air stream behind the fan 22. The control element 28 may be set to provide and maintain a predetermined intake air temperature; for example, if the control is set for say the circuit in the control element 28 will be open when the incoming air stream exceeds said predetermined temperature, to thereby discontinue operation of the heater unit. However, once the air temperature drops below the preset temperature, the circuit through the control element 28 will be completed, and heater operation will take place.
A pair of brackets 31 are secured to the top and bottom of box 8 whereby the heater may be mounted within a wall between the studs thereof. A hole 32 is provided in the top surface of the box 8, which may be used for bringing in the power lines for connection to the control elements.
From the foregoing it will be seen that the heater of the invention may be conveniently installed in a wall, and may be operated for automatically regulating the air temperature in a room. The arrangement of the air ilow through the heater to form two air streams, one of which is used for cooling the heater controls, represents an eilicient manner for operation of the heater. Other features as described serve to fulfill the objectives as set forth in the beginning of this disclosure.
The foregoing description has been given in detail without thought of limitation since the inventive principles involved are capable of assuming other physical embodiments without departing from the spirit of the invention and the scope of the appended claims.
What is claimed is:
l. A heater comprising heater elements arranged in a reflector, a blower means for moving an air stream through the heater and around the rellector on the side opposite the heater elements, control means for operation of the heater elements and blower means, and means to divide the air stream into two paths one of which llows past the control means.
2. An electric heater comprising heater elements arranged in a reilector, a blower means for moving an air stream through the heater and around the rellector onA the side opposite the heater elements, control means for operation of the heater elements and blower means, a thermostat means for operation of the control means in on the side opposite the heater elements, a pair of conf trol elements for operation of the heater elements and the motor, one of said control elements adapted to disrupt ow ofl electric current to the heater elements and motor when the temperature of the air stream exceeds a predetermined value, and means to divide the air stream into two paths one of which flows past the control ele ments.
4. An electric wall heater comprising a box, a front panel secured to the box and being formed to provide an opening having a covering grille, a pair of electrical heater elements horizontally disposed in said box, a relector having curved portions spaced from the heater elements and adapted to reflect heat rays from the heater elements outwardly ,of the box via the grille covered opening, a'motor having a fan operable for moving an air stream from a venturi opening at the lower part of the heater, past the back of the reflector, and outwardly of the heater via the grille covered opening, a baille plate for directing the air stream upwardly in the heater, and a pair of electrical control elements arranged in a chamber formed at the top of the heater, said control elements adapted for completing electric circuits through the heater elements and the motor, one of said control elements having a thermostat means arranged in said air stream adapted to disrupt the circuit through the control element when the temperature of the air stream exceeds a predetermined value, said baile plate being arranged to direct a certain part of the air stream through' the control element chamber.
References Cited in the le of this patent UNITED STATES PATENTS 1,982,139 Kercher Nov. 27, 1934 1,986,350 Logan c Jan. l, 1935 2,707,745 Farr et al. May 3, 1955 2,722,594 Kueser Nov. 1, 1955 2,765,393 Theisen L Oct. 2, 1956
US675680A 1957-08-01 1957-08-01 Heater Expired - Lifetime US2852657A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111573A (en) * 1960-11-04 1963-11-19 Joseph J Perry Sr Electric heating and air circulating unit
US3590217A (en) * 1970-01-02 1971-06-29 Emerson Electric Co Wall-mounted heater
US4004128A (en) * 1975-04-18 1977-01-18 Carlo Marchesi Portable electric radiant heater
US4739153A (en) * 1986-06-02 1988-04-19 Rendel Robert D Wall mounted electric room heater
US5381509A (en) * 1993-04-28 1995-01-10 The W. B. Marvin Manufacturing Company Radiant electric space heater
US5437001A (en) * 1992-12-21 1995-07-25 The W. B. Marvin Manufacturing Company Upright radiant electric heating appliance
US6466737B1 (en) 2001-11-21 2002-10-15 Honeywell Consumer Products, Inc. Portable electric space heater
US20080131102A1 (en) * 2004-11-29 2008-06-05 Stego-Holding Gmbh Fan Heater
EP2808616A1 (en) * 2013-04-12 2014-12-03 EL-Björn AB Fan heater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1982139A (en) * 1931-01-19 1934-11-27 Arthur J Kercher Electrical air heater
US1986350A (en) * 1931-10-01 1935-01-01 Markel Electric Products Inc Electric heater
US2707745A (en) * 1952-08-18 1955-05-03 Arvin Ind Inc Heater
US2722594A (en) * 1953-02-24 1955-11-01 Knapp Monarch Co Temperature control for electric heaters
US2765393A (en) * 1954-03-29 1956-10-02 New York Shipbuilding Corp Automatic fan heater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1982139A (en) * 1931-01-19 1934-11-27 Arthur J Kercher Electrical air heater
US1986350A (en) * 1931-10-01 1935-01-01 Markel Electric Products Inc Electric heater
US2707745A (en) * 1952-08-18 1955-05-03 Arvin Ind Inc Heater
US2722594A (en) * 1953-02-24 1955-11-01 Knapp Monarch Co Temperature control for electric heaters
US2765393A (en) * 1954-03-29 1956-10-02 New York Shipbuilding Corp Automatic fan heater

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111573A (en) * 1960-11-04 1963-11-19 Joseph J Perry Sr Electric heating and air circulating unit
US3590217A (en) * 1970-01-02 1971-06-29 Emerson Electric Co Wall-mounted heater
US4004128A (en) * 1975-04-18 1977-01-18 Carlo Marchesi Portable electric radiant heater
US4739153A (en) * 1986-06-02 1988-04-19 Rendel Robert D Wall mounted electric room heater
US5437001A (en) * 1992-12-21 1995-07-25 The W. B. Marvin Manufacturing Company Upright radiant electric heating appliance
US6351602B1 (en) * 1992-12-21 2002-02-26 The W. B. Marvin Manufacturing Company Upright radiant electric heating appliance
US5381509A (en) * 1993-04-28 1995-01-10 The W. B. Marvin Manufacturing Company Radiant electric space heater
US5652826A (en) * 1993-04-28 1997-07-29 The W. B. Marvin Manufacturing Company Radiant electric space heater with capillary tube thermostat
US6466737B1 (en) 2001-11-21 2002-10-15 Honeywell Consumer Products, Inc. Portable electric space heater
US20080131102A1 (en) * 2004-11-29 2008-06-05 Stego-Holding Gmbh Fan Heater
US7664379B2 (en) * 2004-11-29 2010-02-16 Stego-Holding Gmbh Fan heater
EP2808616A1 (en) * 2013-04-12 2014-12-03 EL-Björn AB Fan heater

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