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7619187 |
Porous ceramic heating element and method of manufacturing thereof
Disclosed herein is a porous ceramic heating element wherein 0.08 to 1.00 wt % of a foaming agent is added in 99.00 to 99.92 wt % of a mixture of an inorganic material, a binder, a conductive...
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5916466 |
Space heater with element supports
A heating apparatus for an enclosure including at least a ceiling and a side wall, the apparatus includes a plurality of electrical resistance heating wires or sections of electrical resistance...
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5053743 |
High voltage spiral resistor
A resistor constituted by a spiral region (4) of a second conductivity type and having a determined doping level, formed on a first surface of a semiconductor substrate (1) of the first...
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4649368 |
Electrical resistance heating element
A resistance heating element of the ribbon type for use in a high temperature electric furnace. The element has the same curved cross-sectional configuration throughout its entire length to give it...
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4641010 |
Battery powered electric hair curler
An electric hair curler comprises a handle and a barrel connected thereto for winding thereabout the hair. The barrel is provided with an electric heater for curling the hair wound on the barrel....
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4575619 |
Electrical heating unit with serpentine heating element
A heating unit combining a block of thermal and electrical insulating material and an electrical resistance element in which the block contains a mass of ceramic fibers bound together and has an...
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4450347 |
Heating body
This heating body is cut from a metal sheet (1) and defined by slots (2) obtained by punch stamping on a support (4) of plastics foam. The opposite edges of these slots (2) are spaced from one...
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4429214 |
Electrical heating panel
A gypsum wallboard with electrical heating wire disposed in grooves arranged to minimize tendencies for the board to crack when lifted by the two opposite board ends.
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4415798 |
Plate for radiant heating or similar effects
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...
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4292504 |
Expanded metal electric heating element with edge support
An electric resistance heating unit in which the heating element is a thin, foil-like strip of expanded metal supported on edge substantially along its entire length on a board of insulating...
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4249069 |
Flask heater assembly
A flask heater assembly for spherical bodied, boiling flasks in which a block is hollowed to receive the flask body and a ribbon of electrical resistance heated, flexible metal is folded into an...
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4081657 |
Electrically heated roof drip edge strip
A drip edge strip for a shingled roof is tapered and includes a first portion to be secured to the roof and provided with channels extending from end-to-end thereof and a second portion to underlie...
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3928837 |
Ceramic oxide resistor element
A ceramic oxide thermistor having a negative temperature coefficient at elevated temperatures comprising about 30% to 100% Fe 2 O 3 and 0% to 70% Al 2 O 3 . It preferably also contains MnO. The...
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3812320 |
HEATED GROUND COVER FOR THE DISSIPATION OF MOISTURE
A heated ground cover including a first outer sheet member, a second outer sheet member, heating wires interposed between the outer sheet members with chambers adjacent to the heating wires...
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3680207 |
METHOD OF MAKING ELECTRICAL HEATING UNITS
A method of making an electrical heating unit which includes the steps of shaping a strip of electrical resistance wire into a pattern for the heating element of the unit, contacting one of the...
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3629555 |
HEATING APPARATUS FOR A PRINTING PRESS
A printing press heating apparatus of modular construction providing a selected size and extent of heating surface and supported in its heat exchange position with adequate allowance for thermal...
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3612828 |
INFRARED RADIANT OPEN COIL HEATING UNIT WITH REFLECTIVE FIBROUS-CERAMIC HEATER BLOCK
An infrared radiant-type heating unit including a utensil support cover plate of infrared transmissive material, an underlying infrared reflective heater support block having a low thermal mass,...
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3612827 |
FLAT PLATE SURFACE HEATING UNIT
A flat plate surface heating unit with a recessed pan filled with thermal and electrical insulation. A closely wound, sinuous, electrical resistance heater wire of flattened cross section is...
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3546653 |
RESISTOR ASSEMBLY
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3525851 |
ELECTRIC-CYCLONIC HOT AIR FURNACE
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3512115 |
THIN FILM RESISTOR NETWORK
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3500464 |
INSULATING ELECTRICAL HEATER SUPPORT
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3303324 |
Heating unit
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3214572 |
Electrical heater
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3153138 |
Electrical radiant panel heater
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2995645 |
Electric space heater
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2890318 |
Aluminum sheathed heating elements in aluminum die castings
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3555485 |
Title is not available
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