Class 219/121.33 - With fluid supply (e.g., shielding gas or coolant)

Subclass of Class 219 - Electric heating
Definition: Subject matter wherein the particle beam generator structure
No. of patents: 31
Last issue date: 10/26/2004

Number	Title	Issue Date
6809286	Shielding gas filter for welding apparatus A shielding gas filter that can be readily incorporated into a gas shielding system for an arc welding apparatus. The gas shielding filter is readily installed to the system upstream of a gas solenoid valve and removes any potentially harmful particles from the supp...	10/26/2004
6313428	Apparatus and method for reducing space charge of ion beams and wafer charging An apparatus for ion beam neutralization is disclosed in this invention. The apparatus is a plasma flood source with an arc discharge chamber enclosed in a source housing with sufficient cooling so that the housing temperature is near room temperature. Ar...	11/06/2001
5846330	Gas injection disc assembly for CVD applications A gas injection disc is provided which includes an outer ring and a tubular modular insert which slips into the outer ring. The outer ring is provided with an inner bore, a ring-shaped plenum located around the inner bore, an outer gas sealing surface aro...	12/08/1998
5718776	Steel plate less susceptible to welding distortion and highly bendable by lineal heating, process for producing said steel plate, welding material, and welding method using said welding material In the present invention, a steel product having a specified composition comprising by weight C: 0.02 to 0.25%, Si: 0.01 to 2.0%, Mn: 0.30 to 1.5%, Al: 0.003 to 0.10%, Nb: 0.005 to 0.10%, and Mo: 0.05 to 1.00% with the balance consisting of Fe and unavoid...	02/17/1998
5486383	Laminar flow shielding of fluid jet A process and system for shielding a turbulent fluid stream, comprising emitting a laminar flow of a shielding gas transversely to the flow direction of the turbulent fluid stream preferably from a porous wall. The turbulent fluid stream may be hot and ma...	01/23/1996
5338913	Electron beam gun with liquid cooled rotatable crucible An electron beam gun with liquid cooled rotatable crucible is disclosed including a metallic bellows connected to the housing for the rotatable crucible at a 90° angle and the bellows contractible to a minimum length that is a straight line between the a...	08/16/1994
5303081	Laser beam scanner It is profitable to oscillate a beam on objects when a high power CO2 laser beam or a high power YAG laser beam welds or anneals the objects. In order to let a laser beam scan, a device for reciprocating a lens or a device for rotating two mirr...	04/12/1994
5299731	Corrosion resistant welding of stainless steel A process for welding stainless steel tubing in the presence of an inert gas comprising a silicon base gas, in particular silane SiH4. During the welding operation, a suitable quantity of silicon is deposited by chemical vapor deposition at the...	04/05/1994
5294772	Debris control system A debris control system is provided for an electron-beam drilling apparatus having a chamber encompassing a drilling area and a calibration area. The debris control system includes a calibration-area shielding assembly which shields a calibration area of ...	03/15/1994
5111022	Cooling system for electron beam gun and method A circulating coolant reservoir is used to uniformly cool a removable crucible in an electron beam gun assembly for vaporizing material to be deposited at another location. The outer surface of the crucible is substantially immersed in the coolant reservo...	05/05/1992
4998004	Electron beam gun An improvement in high power electron beam guns including a non-inductive high-voltage cable for supplying power to the gun having barriers for preventing air leakage from inside the cable into the vacuum chamber. The gun includes a support for its cathod...	03/05/1991
4994140	Method capable of forming a fine pattern without crystal defects In a method of processing a compound semiconductor wafer to deposit or form a specific layer on a wafer surface, to partially remove the specific layer to partially expose the wafer surface, and to etch a partially exposed area of the wafer, etching is pe...	02/19/1991
4820900	Vacuum plasma spray system with sealed manipulator A vacuum plasma spray system includes a spray chamber, a motor-driven manipulator including a drive mechanism and a respective control system, and a plasma gun mounted on the manipulator in the spray chamber. The drive mechanism comprises three drive grou...	04/11/1989
4818838	Apparatus for preselecting and maintaining a fixed gap between a workpiece and a vacuum seal apparatus in particle beam lithography systems Disclosed is a particle beam lithography system (10) having a workpiece loading/unloading position to one side of a particle beam (32) and beam column (12) where a workpiece (14), to be processed, is placed in a vacuum chuck (100) to eliminate any irregul...	04/04/1989
4785638	Refrigerant fluid trap for vacuum evaporators for the deposit of thin metal films A refrigerant fluid trap for a vacuum evaporator for depositing a thin metal film including a U-shaped structure for passage of refrigerant fluid, forming an interior space for trapping condensable vapors. In said interior space there is housed a titanium...	11/22/1988
4705638	Waste water treatment A method of treating wastewater containing a contaminant selected from the group consisting of heavy metal cations, tars, oils and phenols or mixtures thereof, comprising mixing said wastewater with an effective amount of desulfurization slag, the composi...	11/10/1987
4687902	Electron-beam welding apparatus Electron beam welding apparatus, suitable as a mobile welding apparatus, having a solid dielectric insulator for the high voltage electrical conductors and also having liquid coolants for cooling the conductors and the insulator which are heated by the ca...	08/18/1987
4599869	Cryogenic deposition of catalysts A reactor for performing reactions at very low, i.e. cryogenic temperatures has a collection vessel mounted above an electron gun to collect vaporized material such as metals, metal oxides, metal salts and metal halides. The collection vessel is maintaine...	07/15/1986
4574178	Electron gun An electron gun with a beam generator 4, a high-voltage connection 25 and a high-voltage insulator 23 is equipped with at least one insulating transformer 26, 27 and circuit elements 43 for producing auxiliary voltages at high-voltage potential. The beam ...	03/04/1986
4304979	Method and apparatus for electron beam welding at elevated pressures Method and an apparatus whereby electron beam deep welding can be performed at pressures of more than 10 millibars, especially under atmospheric conditions, without the need for complex apparatus. This is achieved by guide surfaces disposed between a seam...	12/08/1981
4163889	Device for the simultaneous operation of a number of gas discharge electron guns A device for the simultaneous operation of a number of gas discharge electron guns in which electron beams produced by the guns have different intensities due to different diameters of discharge spaces and/or due to a different anode-cathode distance....	08/07/1979
4123663	Gas-etching device A gas etching device comprises a vacuum vessel provided with a means for supplying into the vacuum vessel a gas containing therein oxygen atoms and a gas containing therein fluorine atoms, an etching gas-producing region provided within the vacuum vessel ...	10/31/1978
4084076	Electron beam welding gun Disclosure is made of an electron beam welding gun, wherein an anode unit is connected to a cathode unit having a sealed housing, in which there is arranged a cathode assembly. Said cathode assembly comprises a high voltage tubular insulator, whereupon th...	04/11/1978
4068112	Valve for an electron bombardment welding machine and machine fitted with such valve A valve which preserves the vacuum between a gun and a welding enclosure in an electron-bombardment. The valve contains a chamber which communicates with the gun and the enclosure via opposing orifices, with a sliding piston provided with a passage coming...	01/10/1978
4034181	Adhesive-free process for bonding a semiconductor crystal to an electrically insulating, thermally conductive stratum A broad silver coated direct band-gap semiconductor crystal is bonded to a sapphire face plate without using any adhesive by a process of positioning the crystal with a broad surface against the sapphire, and bombarding the crystal with an electron beam r...	07/05/1977
4020317	Method of mining rock with an electron beam A method of mining rock utilizes a high-intensity electron beam to break the rock. The electron beam is directed onto the surface of the rock, and has sufficient energy either to ablate the rock at the zone of beam impingement and generate an ablation pre...	04/26/1977
4019242	Vacuum pressure fill of viscous dampers Method and apparatus for filling viscous dampers in which the method comprises assembling a damper housing with an inertia weight placed loosely therewithin and a housing top having a single aperture therein and adapted to provide a complete closure for t...	04/26/1977
4019091	Gas discharge electron gun for generating an electron beam by means of a glow discharge A gas discharge electron gun for generating an electron beam by means of a glow discharge. A rapid control (.apprxeq.1 msec) is possible by admitting the gas to the gun through at least one aperture in the inner wall of a tubular positive electrode....	04/19/1977
3998718	Ion milling apparatus To adapt ion milling of thin film devices to the requirements of large scale industrial production a configuration of ion source and device holders is proposed which allows the simultaneous processing of a large number of devices. In the proposed configur...	12/21/1976
3971911	Projection forming of three-dimensional metal objects Metallic particles are heated to a coherent bonding state, are provided with an electric charge and accelerated into and through an evacuated chamber. Means associated with the chamber continuously control the directional path of the moving particles in a...	07/27/1976
3961103	Film deposition A method and apparatus for depositing a thin film of material upon a base substrate including a glow discharge ion source for generating the particular ions that will be subsequently deposited upon the base substrate, a vacuum deposition chamber wherein t...	06/01/1976

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Class 219/121.33 - With fluid supply (e.g., shielding gas or coolant)