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7341679 |
Organic positive temperature coefficient thermistor and manufacturing method therefor
An organic positive temperature coefficient thermistor 10 having at least a pair of electrodes 2 and 3 positioned facing each other and a thermistor element 1 having a positive temperature...
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7116184 |
Method of terminating bus, bus termination resistor, and wiring substrate having terminated buses and method of its manufacture
A terminal resistor is provided at the end of a bus formed on a wiring substrate. An insulator having a large dielectric loss angle is provided in the vicinity of the terminal resistor to absorb...
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7052925 |
Method for manufacturing self-compensating resistors within an integrated circuit
A method for manufacturing a self-compensating resistor within an integrated circuit is disclosed. The self-compensating resistor includes a first resistor and a second resistor. The first resistor...
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6555787 |
Three conductor heating element
A heating element, including a sensor conductor, two resistive conductors, with one resistive conductor arranged on one side of the sensor conductor and an other resistive conductor arranged on an...
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6543102 |
Sensor component
A sensor component comprises a ceramic support (12) with a metal film (14) applied thereto. At least one connecting wire (16) is electrically connected to the metal film (14) in a contact area...
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6441718 |
Overlay surface mount resistor
A surface mount resistor includes an elongated piece of resistive material having strips of conductive material attached to its opposite ends. The strips of conductive material are separated to...
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6337470 |
Electrical components molded within a polymer composite
Various components of thermal systems are shown molded within a polymer composite sheath, including heaters, sensors, and control circuits. The use of transfer and compression molding allows for...
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6203871 |
Encapsulant for leads in an aqueous environment
An article, specifically an inkjet printhead, having electrical leads in an aqueous environment in which the leads are encapsulated in a thoroughly cured mixture of 88 parts bis-phenol A epoxy...
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6124579 |
Molded polymer composite heater
A molded polymer composite heater is shown. The use of transfer molding and compression molding allows for the use of thermoset polymers containing very high levels of reinforcement fillers. These...
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5847368 |
Electric heating unit and method of producing same
An electric heating unit comprises a heat-insulating main body consisting primarily of a heat-insulating material and formed with a groove in a surface thereof, and a heating element provided in...
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5786745 |
Electronic package and method
A package (10) has outermost surfaces (12, 13, 14, 16) that form a polygon shape. The body (11) of the package (10) has axial symmetry about an axis (21). A lead (22) exits the package along the...
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5621378 |
Heatsink-mountable power resistor having improved heat-transfer interface with the heatsink
A power resistor having much improved heat dissipation ability to an underlying heatsink because a step or protuberance is provided that cooperates with the mounting bolt or screw to largely...
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5610572 |
Resistor element having a plurality of glass layers
A resistor element has a ceramic substrate and a metallic resistor coated onto the substrate. The metallic resistor has varied electrical resistance depending on temperature. A pair of leads are...
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5594407 |
Debris-reducing film-type resistor and method
A resistor combination and method, that is formed by a substrate having a resistive film on it, and pins extruding from one edge of the substrate and connected to the film. A U-shaped cold region...
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5521357 |
Heating device for a volatile material with resistive film formed on a substrate and overmolded body
A heater apparatus includes a substrate, a resistive film formed on a first portion of the substrate, and first and second conductive leads formed on the substrate engaging the resistive film....
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5481241 |
Film-type heat sink-mounted power resistor combination having only a thin encapsulant, and having an enlarged internal heat sink
A low-cost heat sink-mounted power film resistor having a high power rating for its footprint size, and not incorporating any housing. The resistor is bolted or otherwise secured tightly to an...
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5304977 |
Film-type power resistor combination with anchored exposed substrate/heatsink
The film-type electrical power resistor includes a flat ceramic chip on the upper surface of which is screen-printed a resistive film. Terminals (leads) are mechanically and electrically connected...
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5300916 |
Sensor element for a thermal type flowmeter
A sensor element for a thermal type flowmeter including a ceramic substrate, a thin film, resistor of platinum provided on the outer surface of the ceramic substrate and an outer protective layer...
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5291178 |
Film-type resistor assembly with full encapsulation except at the bottom surface
A film-type resistor having a high power rating and a relatively low manufacturing cost. The structural strength of the resistor is derived primarily from a molded body that covers both a...
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5278939 |
Vacuum-molded ceramic fiber electric radiant heating unit with resistance heating coils internally free of fibers
A vacuum-molded electrical radiant heating unit having a resistance heating coil embedded in a ceramic fiber body is prepared by a process in which a resistance heating coil (5) is placed on a...
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5252944 |
Film-type electrical resistor combination
The film-type electrical power resistor includes a flat chip of aluminum oxide, having a resistive film screen-printed onto one of its sides. Leads are bonded to that side and electrically...
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5210517 |
Self-resetting overcurrent protection element
A self-resetting overcurrent protection element uses an element body made up of a mixture of polymers and carbon black grafted with polymers. A resilient sheathing material covering the element...
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5144279 |
Resistor element with thin porous metallic layer covered with glass coating
A resistor element for determining a parameter, which includes a ceramic support having a bearing surface, an electrically resistive metallic layer formed on the bearing surface of the ceramic...
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5020214 |
Method of manufacturing a hot wire air flow meter
An exothermic resistor for use in a hot wire air flow meter, having a wire (2) in the form of a coil made of a metal, a pair of lead wires (3) connected to connections (21) formed at the opposite...
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5019893 |
Single package, multiple, electrically isolated power semiconductor devices
Single package, electrically isolated dual, triple, quad, etc., power semiconductor devices are provided without use of ceramic or other isolators between the semiconductor die and the die support....
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RE33541 |
Surface-mounted power resistors
A surface-mount power resistor may be fabricated using a power resistor of conventional design as its core. A conventional resistor is reworked so as to flatten its leads from a point near their...
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4926542 |
Method of making a surface mount wirewound resistor
A surface mount wirewound resistor having a conventional wirewound resistor embedded in a plastic body member with terminal axial leads of the resistor being severed at the opposite ends of the...
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4884053 |
Surface mount wirewound resistor and method of making the same
A surface mount wirewound resistor having a conventional wirewound resistor embedded in a plastic body member with terminal axial leads of the resistor being severed at the opposite ends of the...
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4873507 |
Encapsulated thermal protector
A thermal protector encapsulated in an inner layer of energy-absorbing material and an outer layer of stretchable elastomeric material. The inner and outer layers inhibit an exploding thermal...
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4833438 |
Method of manufacturing a lightning arrester, and a lightning arrester obtained by the method
A double molded over method of manufacturing a lightning arrester in which a central core 1 is made of zinc oxide in a first step, then two metal end fittings 5, 6 are molded onto the end faces and...
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4788524 |
Thick film material system
A material system for manufacturing thick film resistors on a ceramic dielectric substrate is disclosed. The system includes the application and fixing of resistor terminations composed of a...
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4766410 |
High-voltage cylindrical film-type resistor and method of making it
A high-voltage cylindrical film-type resistor has cup-shaped end caps that receive the ends of the cylindrical substrate, each end cap having a convexly-radiused rim that has a radius of at least...
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4749981 |
Resinous resistor
A resinous resistor made of a blend of a thermoplastic non-polar resin, a thermoplastic polar resin, graphite and carbon black. The volume inherent resistance value of the resistor can be precisely...
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4746895 |
Ceramic electronic components
A ceramic electronic component which comprises a generally elongated ceramic body and a metal cap mounted on each end of the ceramic body. Each end of the ceramic body has a peripheral edge rounded...
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4617450 |
Process for manufacture of a vacuum-moulded electrical heating unit
A resistance heating coil is placed on a sieve like tray above a suction box, and a slip of ceramic fibers is placed in the suction box, so that a ceramic fiber layer builds up when suction is...
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4570150 |
Precision resistor and method of making same
A precision resistor of the type formed by defining a resistive path in a thin foil of resistance material attached to a substrate. Metallic interface layers are deposited on terminal pads between...
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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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4481380 |
High voltage insulator for electrical components having telescoping insulative sleeves
A high voltage electrical component can be insulated by placing such component into a first sleeve of preformed insulative material dimensioned to receive and telescope over the component. An...
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4438322 |
Ceramic coated electric heater assembly for tools
An electric heater assembly for tools having a removable heated tip includes a tubular metal base having an open end adapted to removably receive and hold the end of the tool tip. A coating of...
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4371860 |
Solderable varistor
A low leakage varistor which is resistant to the high temperature, corrosive conditions encountered during assembly of such devices includes a protective layer disposed on the surface of the...
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4368453 |
Rapid acting gas temperature sensor
A meander-shaped layer of nickel is deposited by evaporation on a ceramic wafer over an intermediate layer of tantalum serving to improve adhesion, and covered by a protective coating of silicon or...
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4349855 |
Lightning arrester
A lightning arrester comprises a non-linear resistor as a lightning arrester element and an insulator holding the non-linear resistor in one body without a gap to prevent deterioration of the...
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4342020 |
Electrical network
A mechanically stable electrical network has a metal carrier and an insulating layer which supports the electrical network on the metal carrier.
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4337453 |
Fundamental electrical element array
A first fundamental electrical element array which has a plurality of columnar, fundamental electrical elements with opposite wire leads, and in which the fundamental electrical elements are...
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4333069 |
Electrical resistor for a printed circuit board and method of making the same
An electrical resistor comprising an elongated resistor body having a resistance wire winding extending between its ends and terminals at each end contact the resistance winding and each comprise a...
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4318072 |
Precision resistor with improved temperature characteristics
A precision resistor using a resistance metal film etched into a long serpentine strip cemented to a substrate. This substrate is a composite of rigid materials and plastics. The composite thermal...
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4317102 |
Hot foil transducer skin friction sensor
An improved hot wire transducer skin friction sensor 10 and 19. The device utilizes foil transducers 11 and 18 with only one edge exposed to the fluid flow. The surface 28 and 31 are polished...
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4315237 |
PTC Devices comprising oxygen barrier layers
Electrical devices comprising PTC elements have improved electrical stability when they comprise an oxygen barrier which restricts access of air to the element so that the PTC element absorbs...
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4311981 |
Magnetic switch
An electric switch magnetically activatable including a Hall Effect sensor with a permanent magnet fixed on one side of the sensor and magnetic shielding interposed between the sensor and fixed...
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4306217 |
Flat electrical components
Substantially flat thin foil electrical components, e.g. thin foil resistors, are disclosed wherein a thin metallic foil is bonded to an insulating substrate and a circuit path is formed on the...
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