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131results about How to "Avoid induction" patented technology

Alternating current rotatable sputter cathode

The present invention is an alternating current rotary sputter cathode in a vacuum chamber. The apparatus includes a housing containing a vacuum and a cathode disposed therein. A drive shaft is rotatably mounted in the bearing housing. A rotary vacuum seal is located in the bearing housing for sealing the drive shaft to the housing. An at least one electrical contact is disposed between a power source and the cathode for transmittal of an oscillating or fluctuating current to the cathode. The electrical contact between the power source and the cathode is disposed inside of the vacuum chamber, greatly reducing, and almost eliminating, the current induced heating of various bearing, seals, and other parts of the rotatably sputter cathode assembly.
Owner:APPLIED MATERIALS INC

Wet electro-core gas particulate separator

A gas separation apparatus combines the technologies of electrostatic precipitators and centrifugal particle separators into a single unit. At an inlet into the gas separation apparatus, a water spray is introduced into the gas stream. The water spray may include various chemical additives, typically selected to react with or neutralize the particulates as they are mixed with the water or for other benefit. The resulting water and particulate mixture, which is much more dense than air, is centrifugally separated and collected through a drain tube outlet. In addition to the centrifugal forces applied to the gas and water stream, an electrical field of magnitude sufficient to produce coronal discharge is also applied to a central electrode. The electric field is generated between the cylinder wall and the central electrode, to assist the centrifugal forces and thereby remove additional particulate beyond that ordinarily removed by a standard centrifugal separator. A vortex finder surrounds the central electrode and protects the electrode from undesirable exposure to water splashes or the like, while assisting with the centrifugal separation. The novel separation apparatus and technique offer particular synergy when applied to the effluent stream from a fossil-fuel electric power plant or other similar gas streams.
Owner:ELECTRIC POWER RES INST INC

Fluxgate sensor integrated in printed circuit board and method for manufacturing the same

A fluxgate sensor is integrated in a printed circuit board. The fluxgate sensor has two bar-type (or rectangular-ring shaped) soft magnetic cores to form a closed magnetic path on a printed circuit board and an excitation coil in the form of a metal film is wound around the two bar-type soft magnetic cores either in a united structure that winds the two bar-type soft magnetic cores altogether, or in a separated structure that winds the two bar-type soft magnetic cores respectively, both in a pattern of number ‘8’. A pick-up coil is mounted on the excitation coil, either winding the two bars altogether, or respectively, in a solenoid pattern. The fluxgate sensor integrated in the printed circuit board can be mass-produced at a cheap manufacturing cost. The fluxgate sensor also can be made compact-sized, and at the same time, is capable of forming a closed-magnetic path. As a result, flux leakage is minimized, and the fluxgate sensor has a high sensitivity as it detects the magnetic field through a variable driving.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD

Carrying Device, Recording Device, and Carrying Method

InactiveUS20080128545A1Suppress wrinkleEasy to complyFilament handlingRotary pressesRecording headEngineering
A carrying device includes: a supply portion (16) for supplying a recording sheet (3) from a supply roll (11) wound with the recording sheet (3); a platen (18), which is opposed to a recording head (7) for performing recording on the recording sheet (3) supplied from the supply portion (16), for supporting the recording sheet (3); a take-up portion (20) in which the recording sheet (3) on which recording has been performed by the recording head (7) is taken up by a take-up roll (12); and a suction fan (52) for sucking the recording sheet (3) supported on the platen (18). The platen (18) is provided with, in a position corresponding to an area in which recording is performed by the recording head (7), a plurality of recessed portions (48), which are formed from an upstream side to a downstream side of the platen (18) in a carrying direction of the recording sheet (3) and are surrounded by projected walls (49), aligned in a width direction of the recording sheet (3). In bottom surfaces in the recessed portions (48), there are provided a plurality of suction holes (51) for sucking the recording sheet (3) by the suction fan (52). As a result, quality of recording by the recording head is increased by suppressing occurrence of wrinkles on a recording material which is carried.
Owner:SEIKO I INFOTECH

High Density Growth of T7 Expression Strains with Auto-Induction Option

ActiveUS20070212782A1Promoting auto-inductionPromoting auto-induction of transcriptionBacteriaFermentationMetaboliteVitamin B12
A method for promoting auto-induction of transcription of cloned DNA in cultures of bacterial cells grown batchwise is disclosed. The transcription is under the control of a promoter whose activity can be induced by an exogenous inducer whose ability to induce said promoter is dependent on the metabolic state of said bacterial cells. Initially, a culture media is provided which includes: i) an inducer that causes induction of transcription from said promoter in said bacterial cells; and ii) a metabolite that prevents induction by said inducer, the concentration of said metabolite being adjusted so as to substantially preclude induction by said inducer in the early stages of growth of the bacterial culture, but such that said metabolite is depleted to a level that allows induction by said inducer at a later stage of growth. The culture medium is inoculated with a bacterial inoculum, the inoculum comprising bacterial cells containing cloned DNA, the transcription of which is induced by said inducer. The culture is then incubated under conditions appropriate for growth of the bacterial cells. Also disclosed is a method for improving the production of a selenomethionine-containing protein or polypeptide in a bacterial cell, the protein or polypeptide being produced by recombinant DNA techniques, the bacterial cell encoding a vitamin B12-dependent homocysteine methylase. The method for improving the production of this protein or polypeptide includes culturing the bacterial cell in a culture medium containing vitamin B12. Finally, disclosed is a method for suppressing transcription of cloned DNA in cultures of bacterial cells grown batchwise, said transcription being under the control of a promoter whose activity can be induced by an exogenous inducer whose ability to induce said promoter is dependent on the metabolic state of said bacterial cells.
Owner:BROOKHAVEN SCI ASSOCS

Thermal field structure for growing large-sized silicon carbide monocrystal

The invention provides a thermal field structure for growing large-sized silicon carbide monocrystal. The structure integrally comprises a crucible, a crucible cover, a seed crystal rod, an upper insulating layer structure, a lower insulating layer structure, a lateral insulating layer structure and an induction coil, wherein the crucible is divided into a cylindrical bottomless structure and a crucible support, the cylindrical bottomless structure is put on the crucible support and is made of a high-purity graphite material, and the crucible support is made of a high-temperature-resistance insulating material; the lower end of the seed crystal rod has a seed crystal tray structure, and is moved along with height reduction of a solid raw material in the sublimating process; the induction coil structure outside the lateral insulating layer structure can be moved downwards from top, so that a reasonable interval between a growing interface of crystal and a raw material can be ensured. The thermal field structure can be used for reducing the probability of crystal fracture and effectively reducing the defects of micropipe, stress and the like inside the crystal, and realizes the growth of large-sized half-insulating silicon carbide monocrystal.
Owner:HARBIN AURORA OPTOELECTRONICS TECH
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