Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1980-09-30
1983-01-11
Roskoski, Bernard
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219358, 219354, F24D 1302, H05B 102, A01K 102
Patent
active
043683770
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an apparatus for achieving a draught-free environment within a defined zone of a larger room. To this end there is utilized a heating ceiling provided with a reflector and being suspended over said zone of the room. With the heating ceiling a controllable additional heat can be obtained.
BACKGROUND ART
Such heating ceilings are mostly known in connection with rearing small animals. In rearing e.g. pigs it is common to use additional heat over certain portions of the room areas where the animals are kept. This is desirable since a piglet a few weeks old gives off considerable amounts of heat and since the temperature in the shed is kept low in relation to the temperature of the piglet for reasons of heat economy and with regard to the well-being of the sow.
The additional heat has so far been obtained either from heat lamps or ceiling units with a heat producing surface. The known heat emitting devices are continuous heat generators being raisable and lowerable to control the mount of emitted energy per surface unit.
TECHNICAL PROBLEMS AND CONDITIONS
Troublesome problems occur with the known heat-emitting devices, which continuously give off a constant additional heat irrespective of whether the piglet is under the device or not. One such problem is the draught which occurs due to the local heating, since this heating varies greatly between the occasions when the piglet is under the device and when the place is empty. When the piglet is under the heat-emitting device, the temperature namely increases, since heat is supplied both from the piglet itself and from the heat-emitting device. When the piglet leaves its place under the device, the temperature drops quickly, since one heat source thus disappears. This temperature variation gives rise to cold draughts under the heat-emitting device where the piglet is to be.
Another disadvantage resulting from the large temperature increase mentioned above is that it becomes too hot for the piglet to be comfortable under the device for any length of time. The piglet therefore moves out into the remaining part of the shed which has low temperature, and remains there until it gets cold. Changes between the different temperature zones have a deleterious effect on the health of the piglet, as with the draught described above.
Apart from the fact that the known heat-emitting devices thus do not give the animals the comfort they are intended to give, the continuously supplied heat also means wasted energy.
Problems and conditions corresponding thereto are also actual at patient treatment, e.g. of heavier burns. Here a well defined environment is required for the patient who must not be exposed to draught and temperature variations. Normally this has been obtained by introducing the patient in a climatized room defined by a floor, a ceiling and walls as well. Then it is natural that extreme problems arise to keep the climate unchanged, e.g. when the patient is to be treated. Thus, temperature variations will be the result when nurses visit the room and this in a turn will result in draught and other disturbances in the climate suited for the patient. Corresponding problems are also to be found in some degree owing to unregular energy radiation from the patient's body.
DISCLOSURE OF THE INVENTION
One object of the present invention is therefore to achieve a local draught-free environment zone. Another object is to maintain the temperature of the air constant under the heat-emitting mechanism, irrespective of the heat radiation which can emanate from heat sources, if any, within the zone. A still further object of the invention is that the heat-emitting mechanism is mounted at a pre-determined, adjustable height while its heat dissipation is regulated in a simple and comfortable, but reliable way by an electronic control circuit. Furthermore, the environment zone ought to be free accessable without any restricting walls.
The stated objects are fulfilled by a heating ceiling being suspended above a defined zone of a la
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patent: 530016 (1894-11-01), Cinnamon
patent: 2493589 (1950-01-01), Caskell
patent: 2610285 (1952-09-01), Rusnak
patent: 2700095 (1955-01-01), Needham
patent: 2745940 (1956-05-01), Stroh
patent: 2912559 (1959-11-01), Kirschke
patent: 3193663 (1965-07-01), Budzich et al.
patent: 3654430 (1972-04-01), Thayer
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