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Cooling device using internal artificial jets Invention relates to a cooling device that uses artificial jets. The device (1) of the artificial jet cooling for cooling an object (5) comprises a converter (10) adapted so as to produce the waves of speed and a chamber (4) adapted with the ability to receive the waves of speed through the actuated opening (8). The chamber (4) is sufficiently large in order to create at the actuated opening (8) the inner artificial jet inside the chamber (4). In addition, the chamber (4) is made with the ability to contain an object (5), thereby enabling cooling of the object (5) by the inner artificial jet. This arrangement generally allows the multipurpose use of existing chamber comprising the object to be cooled and for its original purpose (e.g. a reflector in a lamp or a LED backlight module) and as a chamber for producing internal artificial jets therefore the cooling device typically requires virtually no extra space and weight and can be provided at low cost. |
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Nanocomposite gettering structure and method of its preparation Nanocomposite gettering structure is a silicon substrate with the centres of crystallisation on the surface, on which the layer of active metal or alloy with a developed surface is grown. |
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Lamp base and method of its production Invention is related to electric engineering, in particular, to an electric lamp base. The invention suggests a lamp base (100) containing the main part (101) with a cavity (102) for placement of lamp holder (203), at that the main part (101) has a structure (103) of the side wall limiting the cavity (102) and an annular lower side (104) that surrounds an opening (105); electrically-insulating interface (106) attached to the main part lower side (104) thus it covers the opening (105), the cavity (102) between the electrically-insulating interface (106) and structure (103) of the side wall; electric connector assembly (120) passing through the electrically-insulating interface (106) in order to ensure electric connection between the lamp base (203) and the power source. The method and devices for production of the lamp base are also described. |
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In electric bulb socket containing a split housing with a hole for installation of electric bulb base and an opening for cable entry, an embedded part with side and central electric contacts; in the embedded part there is a channel for installation of a replaceable fuse which can be connected to the central electric contact by its one end. The channel is made in protrusion having a shape of flattened cone with top oriented towards the hole for installation of electric bulb base. The embedded part is equipped with a device that protects the fuse from falling out. This device is made as a spring ball that partially comes into the channel. The device that protects the fuse from falling out is made as a permanent magnet element. |
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In the electric bulb base, having a dielectric hollow housing with a screw surface and an end portion bearing a central contact and leads, the end portion lies inside the housing. At least one hole is made in the wall of the end portion. The invention simplifies the technique of making an electric bulb base. |
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Light-emitting diode lamp base In a light-emitting diode lamp base, having a dielectric hollow housing with a screw surface, a power supply unit built into the housing, a central contact and leads, the outer side of the housing has the shape of a ring of a gear wheel with a perforation in its wall. The end portion of the housing bearing the central contact has a perforation in its wall. On the inner side, the wall of the housing has a groove/protrusion for connecting with a reciprocal protrusion/groove in the body of the lamp. |
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Electric lamp socket contains a hollow body with a screw surface, a central contact and terminals. He body has spouts concave towards the inside that cross the screw surface. The spouts are positioned parallel to the axis passing through the socket centre. |
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Heatsink for light-emitting diode lamp In the heatsink for a light-emitting diode lamp, having a housing on whose inner side surface there are longitudinally aligned fins, wherein the body of the fins has at least one through-channel for air passage, according to the invention the through-channel is in form of a through-recess passing across the fin on its entire thickness. |
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Nanocomposite gas-absorbing structure Disclosed is a gas-absorbing material in form of a nanocomposite gas-absorbing structure for maintaining vacuum in different devices, including in micro-electromechanical systems. The nanocomposite gas-absorbing structure is porous silicon with nanoscale pores filled with a gas-absorbing layer of an active metal or alloy thereof. |
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Here is disclosed procedure for manufacture of foil for flexible printed circuit boards of two-phase micro-composite materials on base of copper. The procedure consists in melting ingots of two-phase alloys on base of copper, in forming a composite blank of micro-composite material and in its rolling. There are melted ingots of two-phase alloy Cu - Me, where Me is metal of group having volume-centred cubic grating, Nb, Fe, Cr, V, Ta. Further ingots are deformed into rods of cross dimension 500-1000 mcm. There is formed a composite blank of micro-composite material by assembling rods into a package and by arranging in a copper matrix at distance of 1000-3000 mcm from each other. Rolling is performed in two stages. At the first stage there is carried out cold or warm rolling with amount of passes facilitating manufacture of plates of the second phase of 50-100 mcm thickness, while at the second stage - cold rolling with manufacture of plates of the second phase of 5-10 nm thickness placed in the copper matrix at distance of 30-100 nm along direction of rolling with volume share as high, as 30%. |
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High-strength foil from microcomposite material High-strength foil from microcomposite material is proposed. Foil contains copper matrix (2) and strengthening metallic inclusions of the second phase from alloy of copper with metal having body-centred cubic (BCC) lattice. Inclusions of the second phase consist of copper with metal with BCC lattice, which have solubility limit in copper at room temperature of <0.3 wt %, and represent plates (3) of alloy with thickness of 5 to 10 nm, which are oriented along the direction of the plate rolling and arranged in copper matrix at the distance of 30 to 100 nm. At that, volume fraction of inclusions of the second phase is 10-30 %. Combination of high strength and electric conductivity is typical of the proposed foil, and namely: ultimate strength of more than 600 MPa, electric conductivity - more than 60% IACS. |
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Method of making light sources Method involves mounting legs, welding, pumping out, filling and basing. An aluminium reflecting layer is deposited on the outer surface of the bulb via ion-plasma sputtering in a working chamber in the glow discharge of an inert gas at pressure (1-2)×10-6 mm Hg, current 70-80 A, voltage 40-50 V and sputtering time of 5-10 minutes. The area of the sputtered aluminium reflecting layer on the outer surface of the bulb depends on geometrical parameters of the bulb of light sources at thickness 2.5-5.0 mcm depending on the sputtering time. |
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Ultraviolet lamp for water treatment devices Lamp comprises contact pins installed on its end cap and protruding outside along longitudinal axis of end cap. Contact pins are displaced some in respect to the others along longitudinal axis. End cap has semicircular parallel surfaces at one end, so that contact pins protrude outside from according parallel semicircular surfaces. Between semicircular surfaces there is a barrier wall arranged perpendicularly. In the first version of invention realisation, a ledge is outgoing from specified barrier wall along at least part of lower semicircular surface. Ledge reaches upper semicircular surface. In alternative version in border wall there is a lot, which also passes between upper and lower semicircular surfaces. |
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Automatic lamp with step start-up (method for protection of illuminating incandescent lamp) Invention refers to electrical engineering, namely, to thermal sources of optical radiation to incandescent lamps. Automatic lamp with step start-up that fully operates in automatic mode may be connected to electric network with discreteness of three steps. Concept of the invention is as follows: method for protection of illuminating incandescent lamp including control of resistance in filament circuit in transition mode by means of alternate closure of resistive elements connected serially to filament by means of thermal relay (1) and thermal relay (2), at that resistance of filament circuit is controlled so that at each moment of time of transition process the following ratio is maintained: RF+(R1+R2)≥RF*, where RF - value of filament resistance in static mode (in cold condition); R1 and R2 - values of resistor resistances; RF* - value of filament resistance in dynamic mode of operation (in hot condition). |
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Lamp with circuir breaker and method to protect filament lamp Invention relates to electrical engineering, particularly to thermal sources of optical radiation, i.e. filament lamps (FL). Proposed method comprises adjusting filament circuit resistance in transition mode (TM) by connecting extra resistor in series in said circuit with the help of thermal relay (TP 1). Said extra resistor comprises Cr-Ni spiral (section AB) and, with filament lamp switched on, serves to make equality Rh+R≥Rh* satisfied, where Rh is resistance of FL filament of tungsten spiral main section (BC), R is extra resistance of the main Cr-Ni spiral section (BC) in dynamic operating conditions (2), i.e. in hot state at the end of transition mode. |
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Light source manufacturing method Invention refers to electrical industry and can be used for light source manufacture. Method involves erection of stem, welding, exhaust, filling and basing. To external surface of base there sprayed is corrosion resistant aluminium layer by ion-plasma spraying method in working chamber in glow discharge of inert gas at pressure (1-2)×10-6 mm hg, current of 70-80 A, voltage of 40-50 V, spraying time of 5-10 min and spraying speed of 0.5 mcm/min. |
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Invention relates to light sources representing both filament and luminescent lamps. Proposed light source comprises tight bulb with filament, its one end being connected to lamp cap and the other ends being separately brought out into base recess for them to be connected to terminals arranged in detachable switch. The latter represents a prism made from insulating material. One of aforesaid terminals is arranged on the switch top end face, the other one is brought out onto the lower end face. Aforesaid terminals are switched by a diode, fuse or resistor connected there between. |
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Preparation method of doped components for manufacturing of tungsten wire Invention relates to non-ferrous metallurgy and can be used at receiving of tungsten powder for preparation of tungsten wire. It is received alkaline silica- potassium basis by means of dissolution of silicic acid in potassium hydroxide at correlation "Ж:Т"=5.5-6.0 and boiling temperature. Received pulp is dissolved by water and neutralised by portions of hydrochloric acid up to pH=3-4 at intensive mixing up to coagulation of silicon compound. Into received basis there are introduced alloying elements. |
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Lamp with protection against unauthorised unscrewing Invention is attributed to electrical industry specifically to power-saving lamp design and can be used for general purpose filament lamps. Lamp with protection against unauthorised unscrewing contains light-emitting diode assembly or discharge tube or bulb with emission source located in it, side and central conductors connected with emission source and serving to supply current to emission source, and base consisting of outer and inner parts which are made capable to rotate relative to each other. In this structure light-emitting diode assembly or discharge tube, or bulb is hard-mounted on inner part of base, inner and outer parts of base are made capable to turn relative to each other by angle α, and this rotation performed when the lamp is unscrewed from its holder causes side conductor to be destroyed. |
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Device for mirror coating of internal part of lamp bulb Device for mirror coating of internal part of lamp bulb includes pumping out position with sealing ring, leak-free connection of electrodes with evaporator, central and side parts of screen with rotating elements. Each side element of screen is connected with holder having guide enclosed into bushing fixed to pumping out positions. Holder and spring are also installed. Groove in bushing is made in the form of longitudinal sections, screwing part with half of turn being arranged between longitudinal sections. |
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Invention is intended for use as a source of light. An electric lamp comprises a lamp bulb having an incandescence body enclosed therein and a lamp base having a ferromagnetic part located between contract pins, said ferromagnetic part being flat, two-sided and mushroom-like shaped. Such a shape of the ferromagnetic part allows increasing the force of interaction between the part and a magnet integrated into a lamp holder, thus making it possible to use the lamp under external load conditions (vibrations, air currents, etc). |
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Device for applying mirror coating onto part of lamp bulb inner surface Proposed device for applying mirror coating onto part of lamp bulb inner surface has evacuation position with sealing ring, electrodes with evaporator fastened through sealed joint therein, as well as central and side parts of screen with their turning members; evacuation position has cap and base with sealing ring in-between; bulb is disposed as a whole within evacuation position and mounted on central part of screen; turning members of side screens are brought out beyond bulb and disposed inside evacuation position. |
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Proposed incandescent lamp that has base, transparent bulb, glass holder, mount, main and additional electrodes, and sectionalized filament; installed between additional electrode and one of main electrodes is electricity conducting component for contacting them which is made in the form of plate one of whose ends is free and other one is secured on electrode. Electricity conducting component is mounted on additional electrode. |
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Proposed incandescent lamp is characterized in that its filament is molten tungsten disposed in slots made in heat-pipe cooled ceramic base and that its operating temperature is optimal for light engineering. Used for the purpose is ordinary and not high-purity, nor single-crystalline tungsten which essentially. |
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Vibration damper for vacuum installations Proposed device has vibration damping bellows with evacuating apparatus on end loosely suspended from vacuum chamber. Disposed under evacuating apparatus are platform and balancing weight affording pump hanging and its movement along vertical axis under working pressure conditions within bellows elastic deformation limits. In addition, evacuating apparatus has vibration damping spring and second balancing weight loosely suspended by means of this spring from evacuating apparatus base. Vibration damping spring and its weight are disposed along axis crossing gravity center of evacuating apparatus; parameters of vibration damping spring and its weight should meet following condition: C = mω2, where C is vibration damping spring stiffness; m is weight mass; ω is cyclic velocity of evacuating apparatus rotor. |
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Rectifier diode disposed inside lamp base is electrically connected to current-carrying lamp filament electrode-holder and to base central electrode. Cooling ports provided in metal sleeve of base between pasted glass bulb and insulating compound of base or in base insulating compound, or else both in base sleeve and in insulating compound afford diode protection against overheat-caused breakdown by means of air circulating between inner space of base and surrounding atmosphere. |
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Revolving-bulb lamp with radiation source Proposed lamp has revolving bulb accommodating radiation source, base with its internal and external parts joined together by means of retainer, locking device that functions to prevent unidirectional rotation of base parts within each other, and insulator with contact strip secured to internal part of base. Retainer is made of springy wire in the form of faceted snap ring disposed in slot provided on insulator surface and placed on bent end surface of base internal part. |
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Light source and ts manufacturing process Proposed light source, for instance incandescent lamp, has bulb 1, filament 2 disposed in bulb 1, and filament heater 3; filament 2 emits both visible light and heat. Lamp is designed so that filament 2 has flat section 4. Process for manufacturing such light source may include manufacture of filament 2 from sintered metal powder followed by exposure of filament 2 to atmosphere of carbon dioxide or mixture of carbon dioxide and inert gas mixture to form metal carbide. For final procedure, filament 2 is placed in bulb 1 whose inner surface is covered with mirror coating 7 formed by multilayer dielectric material. |
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Proposed incandescent lamp is characterized in that its luminous element is made in the form of molten conductor disposed in grooves of ceramic base cooled down by heat tube. |
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Economically efficient incandescent lamp Proposed incandescent lamp incorporates two similar filaments. First filament is supplied with power during positive half-cycles of sine-wave current through first diode and second filament, during negative half-cycles of sine-wave current through second diode. Feeding filaments with one half-cycle current and using radiated heat enhances economic efficiency of lamp. |
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Proposed incandescent lamp has bulb 1, filament 2 disposed in bulb 1, and additional heater 4 for indirect heating of filament 2; the latter emits both visible light and heat. Heater 4 is, essentially, electric current heated incandescence member disposed within lateral surface of cylinder or within half of cylinder lateral surface formed by filament, or precisely speaking, within body of revolution formed by filament. |
Another patent 2513155.