Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8138443 | Sealing systems A sealing system includes two fittings, a compliant member, and a spring. The first fitting has two ends, a first cavity, and a first channel. The first channel extends from the first end to the first cavity, which is formed in the second end radially inwardly from ... | 03/20/2012 |
| 6774339 | Hermetic sealing of target/backing plate assemblies using electron beam melted indium or tin The interfacial joint area of a target/backing plate assembly is sealed so as to inhibit the migration of air and/or water vapor that may be present or trapped along the interfacial surfaces. A pool or bead of molten solder is placed along the interfacial joint and ... | 08/10/2004 |
| 6737660 | Electron beam irradiation apparatus and electron beam irradiating method An electron beam irradiation apparatus in a partial vacuum method is structured with a static pressure floating pad 18 connected to a vacuum chamber 14 containing an electron beam column 15 and in a condition that the static pressure floating pa... | 05/18/2004 |
| 6649859 | Electron beam irradiation system and electron beam irradiation method In a partial-vacuum-type, electron-beam irradiation system having a construction such that a static-pressure floating pad is connected to a vacuum chamber incorporating an electron-beam column, and an electron-beam passes through an electron-beam passage ... | 11/18/2003 |
| 6530317 | Method to engrave surface using particle beam In accordance with the present invention a gravure cylinder is engraved by means of an electron beam which is modulated to create upon the surface of the gravure cylinder the desired gravure cells, the required vacuum being maintained only in a limited vo... | 03/11/2003 |
| 6502328 | Seal for holding a microwave antenna at a pressurized tank of a gas drying system and method A seal for an opening defined by a sidewall portion of the pressurizable tank. The tank contains desiccant for drying gases which pass through the desiccant. An elongate antenna extends from an interior portion to an exterior portion of the tank and is us... | 01/07/2003 |
| 6476350 | Device and method for extended distance cutting by laser, in pulse mode The invention relates to a device for laser cutting, having: means (2) for emitting a pulsed laser beam, with energy pulses Eࣙ10 joules, at least one optical fiber (4) for transmitting the laser pulses, from the means of emitting the laser beam in the direct... | 11/05/2002 |
| 6314686 | Light seal for use with robotic equipment A light seal for use with robotic equipment includes a window having a divider panel rotatably mounted therein. Flexible sealing flaps at the opposite sides of the window opening engage the divider panel when the divider panel is in a sealed position to p... | 11/13/2001 |
| 5950904 | Gas containment box used with a welding head This invention concerns a containment box disposed around a welding head (1) and including a fixed frame carrying a fairing (16) modeled to the shape of the element (3) to be welded, a cover (9) sliding on the frame (10), and a bell with spherical boss (7... | 09/14/1999 |
| 5491316 | Process and device for the electron beam welding of two parts of a component of large size and in particular of a steam generator of a pressurized water nuclear reactor The joint region (43) of the parts (27, 29) is surrounded by an enclosure (38) which is mounted in a fluidtight manner around a part of the outer surface of the component (31). The enclosure (38) carries an electron gun (39). A low pressure is created in ... | 02/13/1996 |
| 5170028 | Process and apparatus, for electron beam welding of a member partially enclosed in vacuum chamber, and the member formed thereby An apparatus for welding of a member to be welded in a vacuum chamber accommodating a part of the member, comprises a housing for defining the vacuum chamber, the housing including upper and lower housings between which the member to be welded is held, th... | 12/08/1992 |
| 5062758 | Shuttle system for rapidly manipulating a workpiece into and out of an atmospherically controlled chamber for doing work thereon in the chamber An automated workpiece handling system rapidly moves a workpiece into a controlled atmosphere chamber, like a vacuum chamber, to a work station, like an electron beam, and withdraws the piece after the work has been completed. While at the work station, t... | 11/05/1991 |
| 5010229 | Apparatus for electron beam welding of workpieces Installations of this type generally comprise an electron-beam generator connected to a chamber for receiving the workpieces to be welded in which a vacuum can be created by a vacuum pump. According to the invention, the vacuum chamber comprises a first w... | 04/23/1991 |
| 4968206 | Shuttle system for rapidly manipulating a workpiece into and out of an atmospherically controlled chamber for doing work thereon in the chamber An automated workpiece handling system rapidly moves a workpiece into a controlled atmosphere chamber, like a vacuum chamber, to a work station, like an electron beam, and withdraws the piece after the work has been completed. While at the work station, t... | 11/06/1990 |
| 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 |
| 4792688 | Differentially pumped seal apparatus A differentially pumped seal apparatus (14) comprising a rough port nozzle (R), a medium port nozzle (M) and a high port nozzle (H), each with a centrally located sleeve (34,36,40) defining concentric apertures (44,48,52). Each nozzle is configured as a s... | 12/20/1988 |
| 4607167 | Charged particle beam lithography machine incorporating localized vacuum envelope A charged particle beam lithography machine includes a beam source and beam steering and forming elements within an evacuated column. A stage assembly for supporting a semiconductor wafer or mask is positioned in ambient and proximate the exit end of said... | 08/19/1986 |
| 4584479 | Envelope apparatus for localized vacuum processing An envelope apparatus is provided for facilitating the production of a vacuum at a localized region on the surface of an article such as a semiconductor wafer. The vacuum permits vacuum processing in the localized region. The envelope apparatus includes a... | 04/22/1986 |
| 4454407 | Extendable modular vacuum chamber Extendable Modular Vacuum Chamber made up by: a parallelepipedal rigid box in two identical parts (1,2) which are separable along a plane passing through the diagonals (14,15) of two opposing parallel faces (5,7), at least one rigid frame (3) which can be inte... | 06/12/1984 |
| 4430550 | Electron beam welding The characteristics of a weld made by electron beam welding are improved by introducing into the region of the pieces to be welded, which is subjected to remelting during welding, a material which is obtained by applying an arc welding process, or a proce... | 02/07/1984 |
| 4398079 | Machine for working metals using electron beams This invention concerns a machine for working metals using an electron beam, characterized in that the gun and the enclosures occupy a fixed position in relation to one another, the gun being connected to each of the enclosures through a duct provided wit... | 08/09/1983 |
| 4393294 | Electron beam working apparatus for cylindrical members An electron beam working apparatus for cylindrical workpieces having a circular working line is improved so that a volume of a vacuum chamber to be maintained can be minimized and the vacuum chamber may not contain a contamination source such as a driving... | 07/12/1983 |
| 4370541 | Electron beam chamber for butt welding pipes An electron beam welding chamber for butt joining elongate members 1,2 extending longitudinally at the center of the chamber. The chamber comprises an envelope 7 defining the welding enclosure 6 and which rests on a fixed structure 8. The electron gun equ... | 01/25/1983 |
| 4368374 | Vacuum chamber for electron beam butt welding of pipes A welding chamber in which a vacuum is created for welding, using an electron beam, elongate pieces extending centrally of the chamber. The welding chamber is divided into a central sub-enclosure 41 for receiving the pieces 1, 2 to be welded and which is ... | 01/11/1983 |
| 4358657 | Sealing system for a movable vacuum chamber of a charged particle beam machine A system for sealing the working vacuum chamber of a charged particle beam machine which is movable with respect to a workpiece is disclosed. The system includes a housing with a central compartment having wire-shaped elements urged against the workpiece ... | 11/09/1982 |
| 4342900 | Vacuum shield device of an electron beam welding apparatus A vacuum shield device of an electron beam welding apparatus including a plate of a rectangular shape formed with a slit for allowing a beam of electrons to pass therethrough, a box-shaped member secured to the undersurface of the rectangular plate with i... | 08/03/1982 |
| 4336438 | Apparatus for automatic semi-batch sheet treatment of semiconductor wafers by plasma reaction An apparatus for automatic semi-batch sheet treatment of wafers such as high-purity silicon semiconductor wafers by plasma reaction is disclosed. The apparatus comprises a wafer carrying mechanism, a reaction chamber with an opening at the bottom, a wafer... | 06/22/1982 |
| 4317982 | Orifice for coupling an electron beam gun to print form cylinders An orifice for coupling a highly-evacuated electron beam gun to a rotating print form cylinder for engraving is provided such that the gun has a rigid cover with an opening for the electron beam at its end facing the print form cylinder and a flexible ban... | 03/02/1982 |
| 4286137 | Method for assembling vertical ducts by electron-welding A method for assembling successive ducts end to end with a pipe-line constituted by the assembled ducts comprising: providing inner equipments for said ducts each comprising means for vacuum-tight connection with the inside of a duct and means protruding ... | 08/25/1981 |
| 4266111 | Apparatus for transferring work through a region of reduced pressure for the performance of an operation thereon The invention provides apparatus suitable for use in continuous transfer of workpieces through a region of reduced pressure in which some operation is to be performed on each workpiece in turn, being particularly, but not exclusively, suitable for electro... | 05/05/1981 |
| 4175226 | Sealing device for charged particle beam welding In a method of welding with a beam of charged particles, outside of a mobile vacuum chamber a gap between two workpiece parts is sealed by an elongated metal foil strip, two marginal zones of which being sealingly cemented to surface portions of said work... | 11/20/1979 |
| 4162391 | Sliding vacuum seal means A vacuum sealing means for a high production electron beam welding machine incorporating a rotary indexing table carrying parts to be welded from a loading position to a welding position under a stationery electron beam gun and then to an unloading statio... | 07/24/1979 |
| 4152574 | Protective beam catcher for electron beam apparatus To prevent damage to electron beam apparatus from inadvertent exposure of parts of the apparatus to the electron beam, there is provided a beam catcher which has a catcher plate that seals off the evacuated work chamber of the apparatus from a space conta... | 05/01/1979 |
| 4103912 | Moving sealing junction with sealing strips controlled by mechanical operators The invention relates to a moving sealing device of the type comprising a chamber movable along a pre-determined path along a wall with which it is tightly connected on a closed contour, and means for providing an opening through the wall within said cont... | 08/01/1978 |
| 4098448 | Method and apparatus for manufacturing rotary drill bits A method and apparatus for the manufacture of rotary drill bits such as are used for oil well drilling which are constructed from a multiplicity of segments. The segments are provided with registration means for positioning the segments relative to one an... | 07/04/1978 |
| 4093843 | Electron beam welding machine An electron beam welding machine incorporating a surface seal system which continuously seals the weld chamber located in an indexing table while such chamber is indexed beneath a seal plate carrying the surface seal material. As a result of the pressure ... | 06/06/1978 |
| 4092516 | Sealing device for a vacuum enclosure A vacuum enclosure rests on two parts to be seam-welded by the electron-beam welding technique and surrounds a support for an electron gun. The support is made up of two separable elements, the first element being constituted by a frame applied in vacuum-... | 05/30/1978 |
| 4080526 | Electron beam machining apparatus of the dynamic seal type Electron beam machining apparatus of the dynamic seal type, characterized by upper and lower fixed plates for fixedly clamping a workpiece therebetween, which plates define upper and lower vacuum chambers; a movable plate disposed on said upper fixed plat... | 03/21/1978 |
| 4072844 | Apparatus for electron beam machining in vacuum An apparatus for the working of materials in a vacuum by means of an electron beam. A vacuum machining facility incorporating a first chamber which includes a longitudinal gap which determines a vacuum tight area around the machining line of the parts to ... | 02/07/1978 |
| 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 |
