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US 4,415,798 AGranted
Plate for radiant heating or similar effects
AssigneeIlona Knappe
InventorHorst Knappe
Life of this patent
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AssigneeIlona Knappe
InventorHorst Knappe
Estimating the term…
A radiant heater for heating the surrounding environment or for transferring heat therein to a remote location. In one embodiment the radiant heater comprises a plate provided with a series of interconnecting grooves in the surface thereof. Disposed in the grooves is either a wire for producing heat when an electric current is passed therethrough or a tube for conducting a fluid, the temperature of which may be greater than, equal to, or less than the temperature of the region surrounding the tube. The wire or tube may be confined within the grooves by a filter material occupying substantially the portion of the grooves not occupied by the wire or tube. In another embodiment, the radiant heater comprises a flat container for such wire or for conducting a fluid, which container is sandwiched between two plates. Several radiant heaters may be functionally interconnected.
A radiant heater comprising a plate of natural occurring stone as distinguished from cast or man-made compositions such as concrete, groove means machined into an outer surface of said stone plate, said groove means comprising a plurality of 360 degree endless circular groove elements machined into said outer surface of said stone plate, said plurality of 360 degree groove elements each having at least one circular portion thereof coincident with another circular portion of a juxtaposed 360 degree groove element such that said coincident circular portion interconnects said juxtaposed 360 degree groove elements, each of said 360 degree groove elements thereby having a coincident circular portion and a non-coincident circular portion, and heating element means disposed in and extending alternatively from a non-coincident portion to a coincident portion such that at least a section of the heating element extends along a non-coincident portion of one 360 degree groove element to a coincident portion between said one 360 degree groove element and a second 360 degree groove element to the non-coincident portion of said second 360 degree groove element to a coincident portion between said second 360 degree groove element and a third 360 degree groove element to the non-coincident portion of said third 360 degree groove element in an undulating and non-linear manner, whereby said heating element means heats said stone to form the radiant heater.
A radiant heater comprising a plate of natural occurring stone as distinguished from cast or man-made compositions such as concrete, groove means machined into an outer surface of said stone plate, said groove means comprising a plurality of 360 degree endless circular groove elements machined into said outer surface of said stone plate, said plurality of 360 degree groove elements being disposed in a row, each of said 360 degree groove elements in said row having a circular portion thereof coincident with a circular portion of a juxtaposed 360 degree groove element in the row such that said coincident portions interconnect said juxtaposed 360 degree groove elements, each of said 360 degree groove elements thereby having a coincident portion and a non-coincident portion, and heating element means disposed in and extending alternately from a non-coincident portion to a coincident portion such that at least a section of the heating element extends along a non-coincident portion of one 360 degree groove element to a coincident portion between said one 360 degree groove element and a second 360 degree groove element to the non-coincident portion of said second 360 degree groove element to a coincident portion between said second 360 degree groove element and a third 360 degree groove element to the non-coincident portion of said third 360 degree groove element in an undulating and non-linear manner, whereby said heating element means heats said stone to form the radiant heater.
Dependencies are inferred from the claim text.