Electric space heater
OwnerWilliam E. Kling, deceasedinventor
Life of this patent
Estimating the term…
Abstract
An electric space heater includes an exterior case (10) which encloses an insulated heater core housing (12). Heat is generated in the heater core (14) by elongated incandescent ultraviolet lamps (64) mounted in a frame (60) inside the core housing (12). A porous aluminum sheet heat exchanger (68) surrounds the lamps (64) on three sides and extends the length of the lamps. A fan (34) mounted in an inlet opening (27) of a rear wall (22) of the case (10) forces air through an opening (52) in the core housing (12) through the heat exchanger (68) and around the lamps, and through outlet openings (28, 54) to the space to be heated. The core housing (12) is U-shaped with curved portions (46, 48) to laminate the air flow.
Claims40
In an electric space heater comprising:
- a housing having an inlet opening at one side and an outlet opening at another side thereof;
- a heat source within the housing;
- a heat exchanger adjacent to the heat source for receiving heat from the heat source;
- and
- means to drive air from the inlet opening by way of the heat exchanger to absorb heat therefrom and out through the outlet opening of the housing,
- the improvement which comprises:
- said housing being substantially closed;
- said heat source comprising at least one elongated lamp, said elongated lamp having a longitudinal axis which is substantially transverse to the direction of the flow of air from said inlet opening;
- and
- the heat exchanger comprising a foraminous sheet material at least partially surrounding the at least one elongated lamp in closely spaced relationship thereto, said foraminous sheet having at least one face which is substantially transverse to the direction of the flow of air from said inlet opening and between the inlet opening and the elongated lamp, whereby the air from the inlet opening is driven against and through said foraminous sheet material and around said at least one elongated lamp to absorb heat from said elongated lamp and from said foraminous sheet material in turbulent flow.
In an electric space heater comprising:
- a substantially closed housing having an inlet at one side thereof and an outlet at another side thereof;
- a heat source within the housing;
- a heat exchanger adjacent to the heat source for receiving heat from the heat source;
- and
- means for driving air from the inlet by way of the heat exchanger to absorb heat therefrom and through the outlet of the housing,
- the improvement which comprises:
- the heat source including at least one elongated lamp;
- and
- the heat exchanger including a foraminous sheet, at least one face of the sheet being disposed in a position adjacent to said heat source and between the heat source and the inlet, substantially transverse to the direction of flow of air at said position.
Dependencies are inferred from the claim text.