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7332694 |
Heating resistances and heaters
A heating resistance 1 comprises a shaped body of a band made of a conductive material obtained by bending the band in a shape of a wave. The heating resistance 1 is fixed to a substrate made...
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7164103 |
Electrical heating resistance element
An electrical resistance heating element having a glow zone and two power supply terminals. The glow zone of the element is tubular. A tubular union is provided between each of the power supply...
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6836207 |
Strip conductor having an additional layer in a curved section
A strip conductor comprises a first layer with at least one curved section. At least one region of the curved section provided with an additional layer having a smaller resistivity than the first...
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5999080 |
Frequency dependent resistive element
A frequency dependent resistor in which the length of the current path across the resistor varies as a function of the frequency of the electrical signals being passed therethrough. The resistor...
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5841342 |
Voltage controlled superconducting microwave switch and method of operation thereof
A low insertion loss, wide bandwidth, microwave switch has a superconducting transmission line that can reversibly go from a superconducting state to a normal state by the application of a DC...
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5712613 |
Computer-aided method for producing resistive tapers and resistive taper produced thereby
A method for producing a desired resistive taper under computer control for controlling the surface resistivity of an electrical element, which comprises the steps of creating a computer controlled...
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5631623 |
Chip-type variable resistor
A chip-type variable resistor is provided which includes an insulating substrate formed with a resistor strip which is arcuate at least partially and has both ends electrically connected to...
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5294778 |
CVD platen heater system utilizing concentric electric heating elements
A wafer support platen heating system for low pressure chemical vapor deposition of apparatus includes multiple resistance heaters for individual heating of multiple portions of the platen to...
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5144278 |
Variable impedance device and circuit for sensing adjustment thereof
A circuit and apparatus for sensing the adjustment of a variable impedance device includes an elongated switching element having an alternating series of conductive and non-conductive areas. The...
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5144521 |
Discharging member and charging device using the same
A charging device for charging a desired object such as a photoconductive element of an electrophotographic copier, laser printer or similar electrophotographic recording apparatus, and a...
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5028295 |
Carpet seaming iron with ultra thin guide strut and improved heat control
A carpet seaming iron comprising a sole plate, an ultra thin guide strut and a flat planar heater core comprising heating ribbon arranged in three separate patterns for providing high, medium and...
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4801916 |
Vertical plug-in single-in-line circuit module
A vertical plug-in single-in-line circuit module with a carrier for carrying a row of single-in-line mounted metal pins lying in the plane of the carrier along one carrier edge as outer electrical...
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4772867 |
Precision resistance network, especially for thick-film hybrid circuits
A precision resistance network of individual resistances R i , especially for thick-film hybrid circuits includes an integrated structure formed of an electrically insulated substrate, having an...
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4740674 |
Pointed heat-generating device
A pointed heat-generating device includes a fine and small heat-generating coil which gradually changes its winding diameters or winding density. The pointed heat-generating device is fixed to a...
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4704514 |
Heating rate variant elongated electrical resistance heater
An electrical resistance heater capable of generating heat at different rates at different locations along its length comprises a continuous and unitary electrical conductor having a thickness...
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4697066 |
Electric hair curling waved with improved heating element arrangement
An electric heating element for a hair-curling wand having a barrel attached at one end to a handle is inserted into a portion of the barrel and consists of a loop cut out of thin flexible nickel...
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4588976 |
Resistors obtained from sheet material
These resistors are obtained from conductive sheet material, for example metal sheet material (usually referred to as "grids") in which additional plates are provided in order to distribute the...
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4560583 |
Resistor design system
Disclosed is a method of forming a precision integrated resistor element on a semiconductor wafer whose resistance value accurately corresponds to its nominal design value. The method comprises...
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4536645 |
Solid-body heating unit
A solid-body heating unit used for the warmth preservation, heating and heat treatment, more particularly, for surface heater for plates or patterns, has a refractory base overlaid with an...
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4533822 |
Heating resistor of single crystal manufacturing apparatus
A heating resistor of a single crystal manufacturing apparatus, which comprises a cylindrical side wall portion surrounding a melting pot, a bottom portion supporting the side wall portion, and a...
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4529958 |
Electrical resistor
The electrical resistor of the present invention comprises a flat metal plate having a thickness from 1 mil to 50 mils. A pair of electrical leads are operatively attached to the ends of the metal...
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4527050 |
Hotplate
An electric hotplate has a hotplate body in the form of a thin ceramic substrate, to whose bottom surface is applied, e.g. by printing, a thin resistive material film. This resistive material film...
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4486652 |
Blackbody radiation source with constant planar energy flux
A processor apparatus is provided in which a blackbody radiator having a constant planar energy flux characteristic is placed in opposition to semiconductor material. The blackbody source produces...
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4456894 |
Distributed-constant resistance for use as a high dissipation load at hyperfrequencies
Conventional attenuators and matched loads for dissipating power at hyperfrequencies are uniform structures giving constant attenuation per unit length. This results in most power being dissipated...
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4443691 |
Electrically heated window
An electrically heated window is disclosed which achieves a more uniform current density at the interface between the resistive heating layer and the current-bearing electrodes to which it is...
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4421975 |
Heating element assembly
An immersion heater having the bent legs of the individual electrical elements joined to a wall by a press fit between tapered element surface and tapered wall apertures. A movable brace...
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4418240 |
Electrical stress control electrode in combination with a junction end of a shielded insulated electrical conductor
The electrical stress control electrode to be arranged around an unshielded junction end portion of a conductor insulator comprises a sheathing member having several successive adjacent zones each...
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4384192 |
Electric heating element
An electric heating element for a cooking apparatus or other device requiring uniform heat generation over an extended area is presented in which the resistivity (ρ), the angular coverage (θ),...
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4310812 |
High power attenuator and termination having a plurality of cascaded tee sections
An attenuator and termination having a relatively flat frequency response r attenuating and dissipating electrical energy is comprised of a plurality of cascaded tee attenuator sections formed on a...
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4283704 |
Variable resistor
In a variable resistor of the type wherein there is formed on an insulating substrate a resistive member having wide portions and narrow portions in the sliding direction of a slide member and ends...
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4267531 |
High-frequency terminating impedance
The invention relates to an HF terminating impedance in strip conductor technique in which the resistive layer is enclosed between two ceramic plates which are clamped from the outside by metallic...
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4245209 |
Voltage divider including a tapped resistor diffused in semiconductor substrate
A resistor is formed in a monocrystalline silicon substrate by the diffusion of impurities to a substantially constant depth in an elongate surface zone with metallized opposite ends constituting...
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4243969 |
Layer resistor element
A layer resistor element for use in a variable resistor has two resistance layers disposed upon each other on an insulating substrate, the lower resistance layer being provided with two comb-like...
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4126824 |
Progressively shorted tapered resistance device
A progressively shorted tapered resistance device including a body of material which undergoes an irreversible resistance decrease when heated beyond a threshold temperature in operative...
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4123741 |
Resistance element for variable resistors
A resistance element for obtaining a continuous and linear output characteristic is obtained by the combination of a zig-zag resistance element and a resistance film of higher resistivity disposed...
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4123742 |
Variable resistor
A variable resistor has an insulating substrate plate, a resistance body formed on the substrate plate and a slider adapted to slide along the resistance body. The resistance body is formed in a...
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4121153 |
Tapered resistor meter
An improved analog meter is provided having no moving parts. This meter comprises a tapered resistor device having a tapered, electrically resistive element which develops a non-uniform temperature...
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4118112 |
Method for reducing power dissipation in tapered resistor devices
A tapered resistor device which includes generally a tapered resistive film comprising a semiconducting material or other suitable material with a negative temperature coefficient of resistivity is...
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4099071 |
Monolithic electronic scanning device
A tapered resistor heating element is provided which sequentially heats and actuates in a controlled fashion heat sensitive media. In one embodiment a tapered resistor heating element sequentially...
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4056823 |
Analog chart recorder employing thermal printing means
An analog chart recorder is provided having a heater assembly which includes a tapered, electrically resistive element that develops a non-uniform temperature profile on electrical energization...
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4019021 |
Electric resistance fluid heating apparatus
A resistance heating apparatus for rapidly heating a liquid or gas to a desired temperature includes a porous mat of fine electrically-conductive elongated elements selected from the group...
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4002883 |
Glass-ceramic plate with multiple coil film heaters
An electrical heating unit having a flat utensil-supporting plate of glass-ceramic or other electrical non-conductive material. On the underside of this plate are bonded multiple coil electrical...
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3921119 |
Film-type cylindrical resistor
A cylindrical film-type resistor comprising a cylindrical ceramic substrate to which is adherently applied a film of resistive material. Laminated over or under such resistive film are a plurality...
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3898427 |
Flexible warming structure
A transparent flexible warming structure particularly useful as a medical accessory such as an incubator or other individual patient warming structure is described herein. The structure comprises a...
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3883719 |
Glass-ceramic cooktop with film heaters
A glass-ceramic cooktop with a plurality of metallic film heaters of circular pattern bonded to the underside thereof. Each turn of the film heater has a generally uniform electrical resistance per...
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3852564 |
ELECTRICALLY HEATED WINDOWS
A novel silk screen, a novel process of making it, and a novel use in the technology of heating flat bodies such as automobile and factory windows. The new screen is characterized by slits of...
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3851150 |
ELECTRICAL RESISTANCE TUBULAR HEATING CONDUCTOR WITH AXIALLY VARYING POWER DISTRIBUTION
An electrical resistance tubular heating conductor of axially varying power istribution having a constant wall thickness body and an axially varying metal coating thereon is made by depositing the...
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3813519 |
ELECTRICALLY HEATED GLASS WINDOW
An electrically heated glass window comprised of a sheet of glass plate has a one-piece electric heating grid attached to the plate glass by being fused thereto. The heating grid includes an array...
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3793984 |
APPARATUS FOR THE PRODUCTION OF CLOSED END TUBES OF SEMICONDUCTOR MATERIAL
An apparatus for producing semiconductor tubes by means of depositing semiconductor material from a gaseous atmosphere onto a heated receiver body, the receiver body consists of a concentric...
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3717439 |
VAPOUR PHASE REACTION APPARATUS
A reaction chamber having a bottom which is a wafer mount and dome member; a plurality of gas inlet pipes positioned at the lower part of the reaction chamber for introducing gas into the reaction...
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