Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7361869 | Method for the production of an electrically conductive resistive layer and heating and/or cooling device An electrically conductive resistive layer (26) is produced by thermally spraying an electrically conductive material (18) onto the surface of a non-conductive substrate (12). Initially, the material layer (14) arising therefrom has no de... | 04/22/2008 |
| 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 of an insulating material to obtain a heater. Alternatively,... | 02/19/2008 |
| 7218847 | Heating unit for heating a workpiece with light-absorbing heat conducting layer A heating unit heats a work piece 6 by heat conduction from a heat conducting plate 4 on which light from a light source 1 is irradiated, wherein the heat conducting plate 4 comprises a holding member 2 having optical transparency,... | 05/15/2007 |
| 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 terminals and a respective end of the glow zone, wherein the inner diame... | 01/16/2007 |
| 7154374 | Plated terminations Improved termination features for multilayer electronic components are disclosed. Monolithic components are provided with plated terminations whereby the need for typical thick-film termination stripes is eliminated or greatly simplified. Such termination technology... | 12/26/2006 |
| 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 layer. The at least one region is constructed such that resistance on ... | 12/28/2004 |
| 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 uses the principal known as skin effect to direct relatively... | 12/07/1999 |
| 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 voltage. When in the normal state, the switch is "off" and micr... | 11/24/1998 |
| 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 optically graded pattern corresponding to the desired res... | 01/27/1998 |
| 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 respective extremity electrode terminals, an intermediate termina... | 05/20/1997 |
| 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 provide a predetermined uniform or non-uniform temperature grad... | 03/15/1994 |
| 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 discharging member of the same. The discharging member is implement... | 09/01/1992 |
| 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 conductive areas are electrically connected. As the device i... | 09/01/1992 |
| 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 low heat to the front, middle and rear sections of the sole... | 07/02/1991 |
| 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 connections of one or more resistive elements such as a re... | 01/31/1989 |
| 4772867 | Precision resistance network, especially for thick-film hybrid circuits A precision resistance network of individual resistances Ri, especially for thick-film hybrid circuits includes an integrated structure formed of an electrically insulated substrate, having an electrically conductive film of constant thickness ... | 09/20/1988 |
| 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 heat-generating front part of a projectile-shaped heat-gener... | 04/26/1988 |
| 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 which is different at different locations along its length.... | 11/03/1987 |
| 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 foil having free ends forming terminals for connection to a... | 09/29/1987 |
| 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 current density and consequently to predetermine the temperat... | 05/13/1986 |
| 4565000 | Matching of resistor sensitivities to process-induced variations in resistor widths A method is disclosed for matching the sensitivities of different-sized resistors to changes in resistance due to changes in width resulting from a systematic manufacturing error. In order to produce sets of resistors which can be deployed in predetermine... | 01/21/1986 |
| 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 forming a resistor body in combination with a test resistor s... | 12/24/1985 |
| 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 electroconductive layer, a protective layer overlaying the electro... | 08/20/1985 |
| 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 plurality of slits formed in the side wall portion and bott... | 08/06/1985 |
| 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 plate, and the side edges of the metal plate are provided ... | 07/16/1985 |
| 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 is covered by a protective coating, which prevents damage.... | 07/02/1985 |
| 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 a constant planar energy flux to uniformly heat the materi... | 12/04/1984 |
| 4467311 | Electrical resistor The electrical resistor of the present invention comprises a flat metal plate having a thickness from 8 mils to 50 mils. A pair of electrical leads are operatively attached to the ends of the metal plate, and the side edges of the metal plate are provided... | 08/21/1984 |
| 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 at an input end. The present invention increases the maxim... | 06/26/1984 |
| 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 connected. In one embodiment this may be achieved by forming th... | 04/17/1984 |
| 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 interconnects the element legs and dampens vibration.... | 12/20/1983 |
| 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 having a non-linear electrical resistance different from t... | 11/29/1983 |
| 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 (.rho.), the angular coverage (θ), and/or the thickness (T) of the electrically resistive ma... | 05/17/1983 |
| 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 substantially flat surface ceramic substrate comprised of... | 01/12/1982 |
| 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 thereof wired respectively to a ground terminal and an in... | 08/11/1981 |
| 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 heat dissipating plates, the freedom from reflection of th... | 05/12/1981 |
| 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 terminals for the passage of a current therethrough. The zo... | 01/13/1981 |
| 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 sets of separating slots extending from opposite sides to f... | 01/06/1981 |
| 4233497 | 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 thickness (T) of the electrically resistive heating element increases from the outer edges of the general... | 11/11/1980 |
| 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 association with a tapered electrical resistance element which devel... | 11/21/1978 |
