US2438670A - Electric circulating heater - Google Patents

Electric circulating heater Download PDF

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Publication number
US2438670A
US2438670A US668194A US66819446A US2438670A US 2438670 A US2438670 A US 2438670A US 668194 A US668194 A US 668194A US 66819446 A US66819446 A US 66819446A US 2438670 A US2438670 A US 2438670A
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US
United States
Prior art keywords
heater
circulating heater
electric circulating
tubes
macdonald
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US668194A
Inventor
Harry F Macdonald
William N Askers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H F MACDONALD
J C MACDONALD
Original Assignee
H F MACDONALD
J C MACDONALD
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Publication date
Application filed by H F MACDONALD, J C MACDONALD filed Critical H F MACDONALD
Priority to US668194A priority Critical patent/US2438670A/en
Application granted granted Critical
Publication of US2438670A publication Critical patent/US2438670A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Description

March 30, 1948. MacDONALD ET AL 2,438,670
ELECTRIC CIRCULATING HEATER Filed May 8, 1946 H TTa/EWEY Patented Mar. 30, 1948 2,43 3,67 ELECTRIC CIRCULATING HEATER l'arry F. MacDonald and William N. Askers, Spokane, Wash; said Askers assignor to H. F. Mac- Donild and J. C. MacDonald, both of Spokane,
Was
Application May 8, 1946, Serial No. 668,194 1 Claim. (Cl. 21938) very efiectively heat air through theregisters.
Another object a heater consisting of mg part of the air duct.
Another object of the invention is to provide an air heater which is simple in construction and not liable to get out of order.
The invention is illustrated in the accompanying drawings wherein:
Fig. 1 is a sectional View showing a heater of the improved construction mounted in position for use.
Fig. 2 is a top plan view of the heater.
Fig. 3 is a View taken along the line 3-3 of Figure 1.
Fig. 4 is a fragmentary view showing a portion of the heater in elevation.
Fig. 5 is a. wiring diagram.
This heater which is indicated in the numeral 1 is mounted in an elbow through an opening in a fioor cates with a hood 1 having gratings or registers 8 at opposite sides so that when the dampers or shutters 9 are opened air may flow into rooms at opposite sides of the partition wall I0.
I is formed as shown in Figures 1 and 2 and includes in its construction a multiplicity of tubes H which are disposed vertically and arranged in a block, the tubes having confronting side portions welded or otherwise secured to each other. The dimensions of the block of tubes is such that the block fits into the casing 2 in spaced relation to walls thereof and rests upon brackets l2 carried by walls of the casing. Confronting side portions of the tubes are formed with transversely extending openings l3 which register as shown in Figure 4, and form aligned passages through which are passed heating elements l4. These heating elements are electrically energized and of conventional formation and are wired in series so that when a circuit is closed the heating elements or units will heat the described the invention, what is against side walls thereof above the inlet opening, a bank of vertically extending air tubes in said casing spaced from the walls and top of the HARRY F. MACDONALD. WILLIAM N. ASKERS.
REFERENCES CITED The following references are file of this patent:
UNITED STATES PATENTS of record in/the Number Name Date 1,701,096 Bowling et al Feb. 5, 1929 1,888,497 Gasch Nov. 22, 1932 1,957,558 Siers May 8, 1934
US668194A 1946-05-08 1946-05-08 Electric circulating heater Expired - Lifetime US2438670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US668194A US2438670A (en) 1946-05-08 1946-05-08 Electric circulating heater

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Application Number Priority Date Filing Date Title
US668194A US2438670A (en) 1946-05-08 1946-05-08 Electric circulating heater

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US2438670A true US2438670A (en) 1948-03-30

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US668194A Expired - Lifetime US2438670A (en) 1946-05-08 1946-05-08 Electric circulating heater

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554231A (en) * 1949-08-04 1951-05-22 Thomas M Wymore Electric furnace
US2556498A (en) * 1948-02-21 1951-06-12 Pittsburgh Des Moines Company Heat accumulator and exchanger
US2578280A (en) * 1950-05-13 1951-12-11 Bailey Meter Co Tubing bundle or cluster
US2839659A (en) * 1957-10-28 1958-06-17 Louis C Cotts Heating system and heat diffuser therefor
US2980785A (en) * 1959-03-30 1961-04-18 Nicholas E Whitney Sr Electric heating
US3167640A (en) * 1961-08-25 1965-01-26 Lennox Ind Inc Register boat heater assembly
US20090003808A1 (en) * 2007-06-30 2009-01-01 Brooke Scott A Ecowave 1.2

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1701096A (en) * 1927-01-07 1929-02-05 Electric Heating Corp Electric air-heating radiator
US1888497A (en) * 1931-06-06 1932-11-22 Fred G Gasch Electric heater
US1957558A (en) * 1933-03-06 1934-05-08 John A H Siers Air temperature regulating apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1701096A (en) * 1927-01-07 1929-02-05 Electric Heating Corp Electric air-heating radiator
US1888497A (en) * 1931-06-06 1932-11-22 Fred G Gasch Electric heater
US1957558A (en) * 1933-03-06 1934-05-08 John A H Siers Air temperature regulating apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556498A (en) * 1948-02-21 1951-06-12 Pittsburgh Des Moines Company Heat accumulator and exchanger
US2554231A (en) * 1949-08-04 1951-05-22 Thomas M Wymore Electric furnace
US2578280A (en) * 1950-05-13 1951-12-11 Bailey Meter Co Tubing bundle or cluster
US2839659A (en) * 1957-10-28 1958-06-17 Louis C Cotts Heating system and heat diffuser therefor
US2980785A (en) * 1959-03-30 1961-04-18 Nicholas E Whitney Sr Electric heating
US3167640A (en) * 1961-08-25 1965-01-26 Lennox Ind Inc Register boat heater assembly
US20090003808A1 (en) * 2007-06-30 2009-01-01 Brooke Scott A Ecowave 1.2
US8295690B2 (en) * 2007-06-30 2012-10-23 Brooke Scott A Infrared heating mechanism and system

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