CA1190579A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Electric heater
Assignee: Individual
•
Filing: 1983-03-28
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Granted: 1985-07-16
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Expires: 2003-03-28
Abstract
Abstract ROGERS, BERESKIN & PARR INVENTOR: KOSTA PELONIS TITLE: ELECTRIC HEATER ABSTRACT OF THE DISCLOSURE A new type of electric heater is described. The heater includes a housing in which is mounted a generally planar core of semi-conductor material formed with a multiplicity of apertures. Conductive coating are formed on opposing faces of the core to permit a heating current flow to be generated in the core by applying a voltage difference to the conductive coatings. A fan mounted within the housing directs an air flow through the core apertures to draw heat from the core. The semi-conductor material is selected to have a high positive resistance-temperature coefficient which pre-vents the core from heating to above 200°C when conven-tional line voltages are applied to the core and which permits marked variation in the quantity of heat delivered by variation of fan speed alone.
Inventors
- 👤 Kosta Pelonis
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-04 19:15
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B1/0252; H05B1/0275; H05B1/0277; F; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405; F24H3/0411; F24H3/0417
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
80 words
An electric heater comprising: a housing; a heating element mounted in the housing, the heating element including a generally planar core of semi-conductor material formed with a multiplicity of apertures; means for electrically connecting the core to an electrical power source to produce a current flow in the core; and, means attached to the housing for producing an air flow through the apertures of the core, the housing being apertured to permit the air flow to escape from the housing.
Claim 2
Dependent Claim
80 words
An electric heater comprising: a housing; a heating element mounted in the housing, the heating element including a generally planar core of semi-conductor material formed with a multiplicity of apertures; means for electrically connecting the core to an electrical power source to produce a current flow in the core; and, means attached to the housing for producing an air flow through the apertures of the core, the housing being apertured to permit the air flow to escape from the housing.
Claim 3
Dependent Claim
39 words
An electric heater as claimed in claim 1 in which the heating element includes conductive coatings formed on opposing faces of the core and the electrical connect-ing means permit a voltage difference to be formed between the conductive coatings.
Claim 4
Dependent Claim
52 words
An electric heater as claimed in claim 2 in which the core has a positive resistance-temperature co-efficient which is sufficiently large that the temperature of the heater core is below about 200°C in normal operation and remains below about 200°C when no air flow is produced through the apertures of the core,
Claim 5
Dependent Claim
37 words
An electric heater as claimed in claim 2 including control means for varying the power consumption of the core, said control means consisting of means for varying the air flow rate of the air flow producing means.
Claim 6
Dependent Claim
41 words
An electric heater as claimed in claim 4 in which the control means include an optical sensing device responsive to the light level of an environment, said control means being adapted to vary the air flow rate with the light level.
Claim 7
Dependent Claim
38 words
An electric heater as claimed in claim 2 including control means for sensing the temperature of an environment and for varying the air flow rate of the air flow producing means inversely with the temperature of the environment.
Claim 8
Dependent Claim
52 words
An electric heater as claimed in claim 6 in which the control means are adapted for on-off operation, the flow of air being substantially discontinued when the temperature of the environment rises above a first predetermined level and being recommenced when the temperature of the environment drops below a second predetermined level.
Claim 9
Dependent Claim
37 words
An electric heater as claimed in claim 3 including control means for varying the power consumption of the core, said control means consisting of means for varying the air flow rate of the air flow producing means.
Claim 10
Dependent Claim
41 words
An electric heater as claimed in claim 8 in which the control means including an optical sensing device responsive to the light level of an environment said control means being adapted to vary the air flow rate with the light level.
Claim 11
Dependent Claim
38 words
An electric heater as claimed in claim 3 including control means for sensing the temperature of an environment and for varying the air flow rate of the air flow produc-ing means inversely with the temperature of the environment.
Claim 12
Dependent Claim
52 words
An electric heater as claimed in claim 10 in which the control means are adapted for on-off operation, the flow of air being substantially discontinued when the temperature of the environment rises above a first predetermined level and being recommenced when the temperature of the environment drops below a second predetermined level.
References Cited (Backward Citations)
No citation records indexed.
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