Electric resistance heating devices – Heating devices – Convection space heater
Reexamination Certificate
2000-11-28
2001-11-27
Jeffery, John A. (Department: 3742)
Electric resistance heating devices
Heating devices
Convection space heater
C416S24700A, C416S14600A
Reexamination Certificate
active
06324340
ABSTRACT:
TECHNICAL FIELD
The present invention relates, in general, to electric equipment and, more particularly, to a combined electric fan and radiation heater designed to be selectively used as an electric fan in summer and as an electric radiation heater in winter.
BACKGROUND ART
Conventional electric fans are seasonal equipment only used in summer, and so they are necessarily stored out of season while consuming space and being inconvenient to users. Such a problem is also experienced in conventional electric heaters, or the seasonal equipment only used in winter.
Therefore, it is desired to propose a combined electric fan and radiation heater, which is selectively usable as an electric fan in summer and as an electric heater in winter and is thus not necessary to be stored out of season.
DISCLOSURE OF THE INVENTION
Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a combined electric heater and fan, which is designed to be selectively used as an electric fan in summer and as an electric radiation heater in winter while substituting both a blade unit and a rear safety net of the fan with a heat radiating body and a parabolic reflector of the heater.
In order to accomplish the above object, the present invention provides a combined electric fan and radiation heater, comprising a fan motor set in a motor case, a parabolic rear safety net, a blade unit, and a parabolic front safety net, further comprising a parabolic reflector designed to be detachably attached to the front end surface of the motor case using a nut while replacing the rear safety net, and a heat radiating body externally wound with a heating coil and designed to be detachably held on a seat of the parabolic reflector prior to being attached to the front end surface of the motor case using a plurality of locking screws while replacing the blade unit, with the heating coil being operated in conjunction with an existing electric circuit.
When the combined fan and heater is used as an electric radiation heater, the heater accomplishes a desired radiation heating effect, allowing strong heat to effectively reach an area considerably remote from the heater, due to the parabolic reflector.
REFERENCES:
patent: 1453873 (1923-05-01), Hicks
patent: 1840918 (1932-01-01), Seale
patent: 2334501 (1943-11-01), Moeller
patent: 3446429 (1969-05-01), Suzuki et al.
Jeffery John A.
Staas & Halsey , LLP
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