Assembly Means Patents (Class 445/66)
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Publication number: 20030124947Abstract: A light bulb assembly with reduced tolerance for engaging a light bulb to a light engine. The light bulb has a first positioning portion. The light bulb assembly has a light machine and a light bulb frame. The light machine has a second positioning portion and an engaging portion for fixing the light bulb in a determined position when the first positioning portion of the light bulb abuts the second positioning portion. The light bulb frame is relatively fixed to the light machine for supporting the light bulb; the light bulb frame has a leaning portion for leaning on the first positioning portion of the light bulb, and an elastic pressure portion for applying three-dimensional pressure on the light bulb for moving toward the determined position.Type: ApplicationFiled: December 17, 2002Publication date: July 3, 2003Applicant: BENO CORPORATIONInventors: Chia-Yu Liu, Li-Kuan Wong
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Publication number: 20030104754Abstract: An apparatus for assembling and inspecting an electron gun of a cathode ray tube includes a mandrel 5 and a measuring nozzle 2. The mandrel 5 has an outer diameter larger than the electron-beam-transmission hole of the Gm electrode 30. The mandrel 5 abuts against the Gm electrode 30 from G3 electrode 40 side, to seal the electron-beam-transmission hole of the Gm electrode 30. The measuring nozzle 2 has a tip that can be inserted through the electron-beam-transmission holes of the G1 and G2 electrodes from the G1 electrode side, and blows air toward the mandrel 5. A clearance between the G2 and Gm electrodes are measured according to the change in pressure of the blown air. It is possible to measure the clearance between the electrodes required for assembling the electron gun having the Gm electrode with a small electron-beam-transmission hole.Type: ApplicationFiled: August 12, 2002Publication date: June 5, 2003Inventor: Nobuhide Hinomoto
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Patent number: 6561865Abstract: A positioning system (20) for positioning a cone part of or for a CRT comprises a first and a second positioning means (22, 23) at positions corresponding to two corners of a side of a rectangle, and a third positioning means (21) at a position in the middle of the opposite side. The first and second means (22, 23) have a saddle-shaped contact surface, which is convex in the direction (51) from the tapered end to the wide end and concave (radius of curvature R) towards a central part of the rectangle, a contact surface of the third positioning means (21) is convex in the direction (51) from the tapered end to the wide end and convex or flat in a plane through the contact surfaces of the positioning means.Type: GrantFiled: April 10, 2001Date of Patent: May 13, 2003Assignee: Koninklijke Philips Electronics N.V.Inventor: Peter Antonius Johannes Jacobs
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Patent number: 6533630Abstract: A vacuum display device for enabling the manufacture of high quality plasma display device with high throughput. A front panel 6 constituting a plasma display device is carried into a film deposition chamber 22; and a MgO thin film is deposited in a vacuum atmosphere. The front panel 6 is then carried into an alignment chamber 11 without being exposed to the atmosphere and aligned with a rear panel 7 that has been subjected to degassing in a vacuum atmosphere. There is no absorption of gas, such as moisture; and the quality of the thin film is not degraded. After alignment, aging processing is carried out without exposure to the atmosphere, followed by gas encapsulation and hermetic sealing, which further increases throughput.Type: GrantFiled: May 26, 2000Date of Patent: March 18, 2003Assignee: Nihon Shinku Gijutsu Kabushiki KaishaInventors: Ryuuichi Terajima, Yukio Masuda, Toshiharu Kurauchi, Ken Momono, Yoshio Sunaga, Hidenori Suwa, Kyuzo Nakamura
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Patent number: 6527547Abstract: The invention relates to an oven for sealing a panel to a funnel, thus forming an envelope suitable for use in a display tube, comprising a tunnel structure 9 and at least one mount for conveying an assembly of a panel and a funnel through the tunnel structure 9. The tunnel structure 9 is provided with a longitudinal slot 16A and the components of the mount for guiding the mount along and through the tunnel structure 9 are placed outside the tunnel structure. It is preferred that the components comprise a means, such as a pump or compressor 24, for flushing the interior of the assembly 22 with a fluid obtained from a source which is substantially separated from the gas(es) circulating in the oven 1, e.g. from the surroundings of the oven 1.Type: GrantFiled: July 12, 2001Date of Patent: March 4, 2003Assignee: Koninklijke Philips Electronics N.V.Inventors: Harm Jitse De Bruin, Adrianus Gerardus Goverdina Maria Michielsen, Johannes Albert Meeske, Bernhard Jacobus Maria Gerardus Hendriks, Mathijs Robert De Wilde, Gerrit Hendrik Siegers
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Patent number: 6514114Abstract: A vehicle-lamp assembly apparatus having: a lower jig (120) for supporting a workpiece (300), a jig support table (10) on which the lower jig (120) is positioned and mounted, and an upper jig (110) incorporating the lower jig (120) as a jig (100) by vertically engaging therewith, supporting any other workpiece (200) when necessary and including electric equipment (530) and (540) which functions to perform predetermined processes to the workpiece. The apparatus also includes an upper jig support plate (24) for supporting the upper jig (110) incorporated via a coupling mechanism (27) in a suspended condition, and an elevator mechanism (22) for moving up and down the upper jig support plate (24) with respect to the jig support table (10). First and second connector portions (510 and 520) are automatically joined together and separated from each other without making the worker do so by hand and this eliminates the possibility of connecting the connector portions improperly.Type: GrantFiled: May 26, 2000Date of Patent: February 4, 2003Assignee: Koito Manufacturing Co., Ltd.Inventors: Akio Ishigaki, Shigeru Yamamoto
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Publication number: 20020193042Abstract: An apparatus (20) for measuring alignment and tilt of a CRT neck (14) attached to a recycled CRT funnel portion (11) includes a support structure (21) that engages and supports a seal edge (24) of the CRT funnel portion (11), and a plurality of stopper pads (28-30) which engage respective alignment stoppers (34-36) molded on the CRT funnel portion (11). Distance measuring gauges (45-48) contact lower and upper points on two sides of the CRT neck (14). The alignment of the CRT neck (14) is determined by readings from the lower gauges (45, 47) on the first and second sides of the CRT neck (14). The tilt of the CRT neck (14) is measured by comparing the readings from the lower and upper gauges (45-48) on each of the first and second sides of the CRT neck. The stopper pads (28-30) on the support structure (21) can be changed to accommodate different sizes of CRT funnel portions (11, 11′).Type: ApplicationFiled: June 13, 2001Publication date: December 19, 2002Applicant: Sony CorporationInventor: Christopher Monks
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Publication number: 20020146959Abstract: Disclosed is a plasma display panel, fabricating apparatus and method thereof enabling to reduce a process time for a PDP fabrication as well as prevent a degradation of a panel channel characteristic and panel damage.Type: ApplicationFiled: April 3, 2002Publication date: October 10, 2002Applicant: LG ELECTRONICS INC.Inventors: Se Pyo Park, Nam Yeol Yang, Jae Ha Lim, Bok Yong Park
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Publication number: 20020111104Abstract: A multi-layered structure, and method for producing same, which may include at least one glass layer anodically bonded to an intermediate layer. The intermediate layer may function as an anodic bonding layer, an etch stop layer, and/or a hard mask layer. A template may be formed of the multi-layered structure by forming a desired pattern of openings therein by way of, for example, etching. Such a template may, for example, be used in the alignment and adherence of spacer structures to an electrode plate during the fabrication of flat panel displays. When used in this context, the construction of such a template results in more precise control of the patterning and sizing of the holes formed therein which thereby allows for more precise placement of spacer structures as well as the use of spacer structures exhibiting relatively higher aspect ratios during the fabrication of flat panel displays.Type: ApplicationFiled: April 1, 2002Publication date: August 15, 2002Inventors: Won-Joo Kim, Robert J. Hanson, David H. Chun, Gary A. Evans, Seungwoo Lee, Jim J. Browning
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Publication number: 20020081933Abstract: A method and apparatus for attaching a tension mask to a mask frame. The apparatus is comprised of a clamping plate upon which is mounted a frame clamp and a frame deflector assembly. Above the clamping plate is located a mask clamp assembly comprising a forming slide. A mask frame is inserted into the frame clamp and secured on a plurality of axes to the top of the clamping plate. As the mask frame is secured, a compression force is applied to the mask frame by the frame deflector assembly and a tension mask is aligned and positioned to the top of the mask frame. While the mask frame is in compression, a forming edge on the forming slide conforms an edge of the tension mask to the mask frame where it is then affixed. The compression force on the mask frame is then released causing the frame to impart a tension force on the tension mask.Type: ApplicationFiled: December 21, 2000Publication date: June 27, 2002Inventor: Leonard Pratt Wilbur
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Patent number: 6398610Abstract: The present invention provides a display panel production line of increased efficiency by providing a relocation step area where display panels in a cassette used in the cutting step area are relocated into a cassette to be supplied to an injection step area while increasing the number of display panels, and the display panels in the cassette from the injection step area are relocated into a cassette to be supplied to a sealing step area while decreasing the number of display panels.Type: GrantFiled: December 22, 1999Date of Patent: June 4, 2002Assignee: NEC CorporationInventor: Yoshiyasu Inoue
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Patent number: 6354901Abstract: In a discharge lamp sealing apparatus 30, luminescent substances are charged into an arc tube 11 through an opening 13b thereof, and an electrode member 15 is then inserted into the arc tube 11 through the opening 13b. A lower end of the arc tube 11 is supported by a support jig 57 in a state that a glass ring 16c is placed around the circumference of the opening 13b. The arc tube 11 is set in an air-tight condition by a feeding conduit 51 and inserted into a heating unit 40. The heating unit 40 fuses the glass ring 16c with heat of an infrared lamp and thereby seals the opening 13b. During the sealing process, one end of the arc tube 11 is supported by the support jig 57. The support jig 57 is mainly made of a material having a greater thermal conductivity than that of the material of the arc tube 11, for example, a metal material like Al or Cu. This arrangement enables heat to be readily conducted from the arc tube 11 to the support jig 57 and accordingly prevents a temperature rise in the arc tube 11.Type: GrantFiled: July 16, 1999Date of Patent: March 12, 2002Assignee: Toto, Ltd.Inventors: Tetsuaki Bundo, Koji Kita, Nobuyuki Yamada, Hiroaki Nagai, Hirotaka Ishibashi, Susumu Narita, Koichi Hayashi
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Publication number: 20020016125Abstract: A tool and a method for positioning spacers on a first plate intended for being maintained at a distance from a second plate by said spacers, said tool including openings for receiving said spacers, and said openings being of variable size between a first position of introduction of the spacers and a second position of mechanical blocking of the spacers.Type: ApplicationFiled: May 29, 2001Publication date: February 7, 2002Inventor: Bernard Arnaud
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Publication number: 20010053648Abstract: A first panel element and a second panel element, each having at least one display layer, are positioned and opposed to each other. The elements are progressively adhered from a staring position with an adhesive material supplied beforehand. Examples of the adhesive material include those which are in a liquid state before curing (such as photo-curing adhesive materials), and also include adhesive sheets. The adhesive material having fluidity can be spread between the two panel elements in the adhering step.Type: ApplicationFiled: March 29, 2001Publication date: December 20, 2001Inventors: Keiichi Furukawa, Masakazu Okada, Tatsuo Taniguchi, Masanori Negoro, Masashi Nishikado, Ken Matsuoka, Hideo Hotomi
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Publication number: 20010034175Abstract: A method and an apparatus for manufacturing an image displaying apparatus having a display panel are provided. A first substrate of the display panel on which phosphor exciting means is disposed and a second substrate of the display panel on which phosphors emitting light by the phosphor exciting means is provide are prepared under the vacuum atmosphere. Then, the first and the second substrates are carried in a getter processing chamber or bake processing chamber, and getter processing or bake processing is applied thereto under the vacuum atmosphere. After the processing, the first and the second substrates are carried in a seal processing chamber, where the substrates are heat sealed under the vacuum atmosphere. Thus, reduction of vacuum exhaust time and a high vacuum degree in manufacturing an image displaying apparatus is attained and efficiency of manufacturing is improved.Type: ApplicationFiled: February 13, 2001Publication date: October 25, 2001Inventors: Toshihiko Miyazaki, Kohei Nakata, Tetsuya Kaneko
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Publication number: 20010009836Abstract: To obtain a stable image forming apparatus of a high quality without a luminance fluctuation and a color mixture due to a positional deviation, the following construction is disclosed. A method of manufacturing an image display apparatus in which a first substrate on which fluorescent body exciting means is arranged and a second substrate on which a fluorescent body that emits light by the fluorescent body exciting means is arranged are arranged so as to face each other and are adhered through joining members at their peripheries, wherein a seal bonding step of adhering the first and second substrates through a joining members and a step of performing a position matching of the first and second substrates are executed in a vacuum.Type: ApplicationFiled: February 28, 2001Publication date: July 26, 2001Inventors: Koichiro Nakanishi, Osamu Takamatsu, Masahiro Tagawa, Shinya Koyama, Kazuyuki Ueda
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Publication number: 20010004576Abstract: A device for forming partition walls of a plasma display panel is disclosed. This device has a lower plate used for seating the base panel of the plasma display panel thereon, with a partition wall sheet of a predetermined thickness formed on the base panel and a plurality of electrodes arranged on the base panel. A punch, having a plurality of partition wall forming grooves and a plurality of lands formed between the partition wall forming grooves. An electrode holding groove or inclined surface is formed on each of the lands and is used for preventing the electrodes from being undesirably moved during a partition wall forming process. An upper plate is positioned above the punch so as to hold the punch and to move the punch in a vertical direction within a predetermined range.Type: ApplicationFiled: December 6, 2000Publication date: June 21, 2001Inventors: Sang Jin Oh, Bong Hyang Kim, Deok Hwan Kim, Soon Kug Hong
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Patent number: 6200132Abstract: An exhaust oven for heat treating and simultaneously evacuating cathode ray tubes includes a tunnel structure with a through passageway and temperature control apparatus for providing regulated heating and/or cooling of the atmosphere in one or more longitudinal zones of the passageway. The oven also includes apparatus for conveying the tubes along the passageway and exhaust ducts operatively connected to the necks of the tubes during conveyance to evacuate gases therefrom. Baffles within at least one of the zones of the passageway circulate the atmosphere about the exteriro of the tubes. The baffles include at least one inlet directing a flow of atmosphere to impinge onto the face of the screen panel of each tube and one or more outlets in adjacent spaced relationship to side edges of said panel and/or to the neck of the tube for exit of the flow of atmosphere from the baffles.Type: GrantFiled: November 23, 1999Date of Patent: March 13, 2001Assignee: Stein Atkinson Stordy LimitedInventor: Christopher Cyril Mundon
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Patent number: 6036569Abstract: A mechanism for fabricating a metalarc lamp. The metalarc lamp has a glass stem, mount frames, and a banding strap for circumferentially encompassing and binding the mount frames to the glass stem. The mechanism defines a horizontal plane for the mount frames. The banding strap is mechanically clamped about the glass stem at opposite pole centers. Then, interlocking portions of the banding strap are crimped to affix the mount frames with respect to the glass stem.Type: GrantFiled: April 24, 1998Date of Patent: March 14, 2000Assignee: Osram Sylvania Inc.Inventors: Randall D. Brown, Larry Crainich
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Patent number: 6015288Abstract: An exhaust oven for heat treating and simultaneously evacuating cathode ray tubes includes a tunnel structure with a through passageway and temperature control apparatus for providing regulated heating and/or cooling of the atmosphere in one or more longitudinal zones of the passageway. The oven also includes apparatus for conveying the tubes along the passageway and exhaust ducts operatively connected to the necks of the tubes during conveyance to evacuate gases therefrom. Baffles within at least one of the zones of the passageway circulate the atmosphere about the exterior of the tubes. The baffles include at least one inlet directing a flow of atmosphere to impinge onto the face of the screen panel of each tube and one or more outlets in adjacent spaced relationship to side edges of said panel and/or to the neck of the tube for exit of the flow of atmosphere from the baffles.Type: GrantFiled: February 20, 1998Date of Patent: January 18, 2000Assignee: Stein Atkinson Stordy LimitedInventor: Christopher Cyril Mundon
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Patent number: 5964631Abstract: A method and apparatus is provided whereby a shadow mask support pin can be forced into a cathode ray tube panel without having to use any panel support post. Three or four support pads are utilized to support the bottom edge of the skirt portion of the panel. Each of the support pads may be elevationally moved by a drive unit. First through fourth distance sensors serve to detect the height of corner points on the interior surface of the panel face portion. A control device is adapted to control the operation of the drive unit in a manner that the corner points are brought into a predetermined reference plane before the support pin insertion proceeds. A fifth distance sensor may be further employed to detect the height of a center point.Type: GrantFiled: August 25, 1997Date of Patent: October 12, 1999Assignee: Samsung Corning Co., Ltd.Inventors: Joo Ho Choi, Jong Phil Choi, Ki Moon Lee, Dae Young Kim, Seong Jin Jung
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Patent number: 5941749Abstract: Automatic object-positioning mechanism, comprising means for supporting the object (1), means for sensing positioning errors, means for moving the means which support the object under control (1), means for activating the means which move the object-supporting means, wherein the means for supporting the object (1) comprise an element (31), a floating plate (3) mounted on a plurality of guides (4) located at the end of two orthogonal axes and to which ball joints (6) provided with threaded bush (7) are associated; wherein the means for moving the means which support the object under control (1) are made up of a plurality of worm screws (8) engaged to electric servomotors (9), said worm screws being oriented parallel to the centering axis (h--h) of the object under control (1), being supported by a fixed frame (5) and engaging the threaded bush (7) of said ball joints (6) so that, by suitably moving the pairs of opposite screws (8), there is obtained a corresponding movement of the object about the center of thType: GrantFiled: December 11, 1997Date of Patent: August 24, 1999Assignee: Spemac S. R. L.Inventors: Andrea Brunetti, Emilia Norberti Innocenti, Carlo Cipriani, Giancarlo Rassitti, Alvaro Tagliaferri
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Patent number: 5921837Abstract: The present invention relates to a method and device for assembling two elements spaced apart by means of a peripheral seal, consisting of adding a seal on a surface of a first element facing a surface to be assembled of a second element, bringing the assembly thus constituted, in vacuum conditions, to a temperature enabling the melting of the seal while temporarily maintaining, by means of spacers having a thickness higher than the thickness of the seal and distributed outside the seal, the surface of the second element distant from the seal, and enabling the elements to come closer to each other to assemble them, sealably, by means of the melting seal.Type: GrantFiled: October 23, 1997Date of Patent: July 13, 1999Assignee: Pixtech S.A.Inventors: Shinji Kanagawa, Maurice Lobet, Jean-Marc Sol, Stephane Mougin
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Patent number: 5919069Abstract: It is an object of the present invention to provide a method for assembling cathode-ray tubes, which does not require a transfer device and which yields good operating efficiency at the time of switching between models. When a cathode-ray tube is inserted into a cabinet, a suction device is inserted through an opening in the front of the cabinet in an upright position and holds the front face of the cathode-ray tube in an upright position, the cathode-ray tube is moved to a fixing position in the cabinet by relative movement of the suction device and the cabinet, the cathode-ray tube is fixed to the cabinet from the rear side of the cabinet by means of a screw fastening device, and the suction device is released from the cathode-ray tube.Type: GrantFiled: July 11, 1997Date of Patent: July 6, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Sachiho Hayama
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Patent number: 5899788Abstract: A method of making a display board illuminated by optical fibers, in which method a display board illustrating different figures are produced by arranging the illuminating ends of the optical fibers into wanted spots onto the surface of the display board. Board perforation and feeding the optical fibers into holes as well as cutting off the optical fibers are carried out in successive steps using the same coordinate controlled punching and feeding device.Type: GrantFiled: May 15, 1996Date of Patent: May 4, 1999Inventor: Aatto Hongisto
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Patent number: 5899787Abstract: A method for heating an implosion-proof band in a process of banding a cathode ray tube (CRT) and an apparatus for heating the band. The band is thermally expanded before it is attached to the outer surface of a CRT. The method includes generating a first high frequency pulse, generating a second high frequency pulse in response to the first pulse, regulating the level of the second pulse, generating a magnetic field in response to the second pulse, and heating the implosion-proof band by locating the band within the magnetic field. The band is uniformly and completely expanded for easy installation while avoiding deterioration of the surface of the band.Type: GrantFiled: December 20, 1996Date of Patent: May 4, 1999Assignee: Samsung Display Devices Co., Ltd.Inventors: Neung-seog Park, Bong-jin Seoung
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Patent number: 5660574Abstract: The present invention provides a simple method of combining two plate members, using an equalizing mechanism holding one of the two plate members so that the plate member is properly preloaded and can be turned by the least necessary force, and capable of combining the two plate members so that the respective contact surfaces of the plate members are joined closely and accurately, and a plate member combining device for carrying out the method.Type: GrantFiled: April 4, 1996Date of Patent: August 26, 1997Assignee: Sony CorporationInventor: Yoshimasa Goda
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Patent number: 5338629Abstract: A method is disclosed for manufacturing photostencils used in screening the faceplates of color cathode ray tubes. The photostencils are produced as progeny from a parent stencil photo plotted according to the dictates of a proximity photoprinting process in conjunction with the electron optical characteristics of the operational CRT. A rectangular beam is used for radiating light through the pattern of features on the parent stencil onto the photoresist of the progeny stencil. As a result, the features of the progeny stencil differ in size or shape or both, from those of the parent stencil.Type: GrantFiled: June 30, 1992Date of Patent: August 16, 1994Assignee: Zenith Electronics CorporationInventors: Robert A. Hibbard, Thomas M. Remec
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Patent number: 5277640Abstract: A mount for supporting a cathode-ray tube is employed in a frit sealing furnace. The frit seal furnace (1) comprises a furnace body (3) and conveyor belts (5) disposed in the furnace body (3) for feeding mounts (21) which each support a panel (31) and a funnel (32) that are superposed one on the other with a frit glass (33) interposed therebetween. Each of the conveyor belts (5) is composed of a pair of chain belts (4a, 4b). The mount (21) is placed on the conveyor belts (5) in the frit seal furnace (1) through a space which comprises a mesh screen (26), so that the mount (21) is suitable for use in the frit seal furnace (1). When the tube body of a cathode-ray tube is broken, glass pieces are prevented from falling onto the furnace floor by the mesh screen. The mesh screen does not obstruct air flows in the furnace.Type: GrantFiled: May 19, 1992Date of Patent: January 11, 1994Assignee: Sony CorporationInventors: Katsuhiko Shinmyou, Shigeru Yoshikawa, Kiyotaka Tanba
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Patent number: 5252099Abstract: The present invention relates to a method of assembling a monitor tube on a front frame, to the monitor thus obtained, and to the assembly machine. The method of assembling the monitor tube on the front frame of the monitor includes the following steps:a) placement of a front frame in a housing;b) blowing air through a nozzle to maintain the tube (105) in suspension;c) centering the tube (105) by way of two V shape support blocks (501, 521) displaced concentrically and simultaneously;d) reversing the direction of air through the nozzle to place a suction on the tube (105) and opening of the V shaped support blocks (501, 521);e) lowering of the tube (105) while connected to the suction to place it into contact with zones (1024) having a high coefficient of adhesion;f) joining the tube solidly to the front face (102);g) stopping the air flow to terminate the suction and release the assembled set.Type: GrantFiled: May 1, 1992Date of Patent: October 12, 1993Assignee: Bull, S.A.Inventors: Jean-Michel Clain, Eric Latte, Francois Piguillem
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Patent number: 5230647Abstract: A machine for manufacturing reflector lamps comprising a reflector and lamp, having several holding heads for holding the reflector and lamp. A three-axis moving means is installed on each holding head. The three-axis moving means moves a lamp in the X-, Y-, and Z-axis directions to optically position the lamp, which has positioning means for positioning said lamp by detecting the luminous intensity distribution of the light projected forward from the reflector when the lamp is turned on and a securing means for securing the positioned lamp by cement.Type: GrantFiled: November 17, 1992Date of Patent: July 27, 1993Assignee: Toshiba Lighting and Technology CorporationInventor: Masashi Namba
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Patent number: 5194028Abstract: A cathode ray tube positioning apparatus employed in the process steps of the preparation of a cathode ray tube of a television receiver or the like is disclosed. The apparatus is constituted by plural ball castors supporting the front panel surface of the cathode ray tube constituted by a panel and a funnel and roll units supporting the lateral panel sides. When positioning the cathode ray tube, the front panel surface is supported by the ball castors and the tube is moved by the roll units supporting the lateral panel sides. The front panel sides are not grazed because the ball castors are rotated with movement of the cathode ray tube.Type: GrantFiled: April 22, 1992Date of Patent: March 16, 1993Assignee: Sony CorporationInventor: Kikuichi Onishi
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Patent number: 5158491Abstract: A system for standardized printing of CRT screens is disclosed. A preferred embodiment utilizes a standardized photoexposure stencil made without the use of a shadow mask aperture pattern and projection printing. The stencil is then placed in proximity to the screening surface during exposure. Front panel and mask support topography preparation methods and apparatus are disclosed, as are means and methods for compensating for variations among panel assemblies utilized in standardized printing of the screens. The system thereby produces high resolution screens which may accept interchangeable shadow masks.Type: GrantFiled: February 13, 1991Date of Patent: October 27, 1992Assignee: Zenith Electronics CorporationInventors: James R. Fendley, John M. Jarosz, Howard G. Lange, Kazimierz Lapinski, Yong S. Park, Charles J. Brazak, III
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Patent number: 5158490Abstract: A device for assembly of an STN liquid crystal module has a Y axis variable rail which is disposed at a crossing direction to an X axis rail and can ride on and slide down the X axis rail installed on the upper side of a table. A Y axis fixed rail is disposed opposite and parallel to the Y axis variable rail. A plurality of lug mounts are slidably disposed on the two Y axis rails. Vacuum pads are positioned at the outside of the two Y axis rails and parallel to each other and move toward or retract from the rails. The pads are at a height corresponding to the height of the upper side of the lug mount plus the thickness of the electromagnetic circuit element and the pads are supported and moved by a first double-acting cylinder. A pair of bars are disposed at a lower position than that of the vacuum pads and move toward or retract from the Y axis rails by using a second double-acting cylinder. A plurality of bending elements are slidably disposed on each bar.Type: GrantFiled: April 1, 1992Date of Patent: October 27, 1992Assignee: Samsung Electron Devices Co., Ltd.Inventor: Yunki Kong
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Patent number: 5003223Abstract: The invention relates to a structure of an anode of a magnetron and to a method of manufacturing the same. This structure has a cylindrical outer frame portion and a plurality of vanes which are integrally formed with the outer frame portion and which radially extend from the inside of the outer frame portion in the central direction of the cylindrical outer frame portion. Projecting portions of predetermined shapes are formed on the inner wall of the outer frame portion or on the vanes so as to be integrated with the outer frame portion or vanes.Type: GrantFiled: April 6, 1989Date of Patent: March 26, 1991Assignee: Hitachi, Ltd.Inventor: Tomokatsu Oguro
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Patent number: 4907999Abstract: Disclosed is a device for holding a substantially parallelepiped-shaped part in position. This device has, fixed on a base, a supporting device on which the part rests and two supporting elements which clamp the part on two opposite sides. The two supporting elements are fixed to a deformable, quadrillateral element so that there is a continuously variable distance between the two supporting elements.Type: GrantFiled: November 10, 1988Date of Patent: March 13, 1990Assignee: VideocolorInventor: Arturo Sbordonne
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Patent number: 4902258Abstract: A robotic assembly system for the automatic assembly of a complex article such as a CRT display unit has a number of workstations positioned along an open conveyor system at each of which as assembly operation is performed by a conventional stand-alone robot.Each workstation is provided with a basic lift mechanism (36, 17, 21, 24, 28) which when operated lifts a pallet (4) supplied thereto from the relatively imprecise surface of the conveyor (1) into a predetermined horizontal plane above the conveyor where it is accurately located. A stand-alone robot, programmed to operate with reference to this constant datum position performs the assembly operation associated with that workstation. In order to assist the assembly operation, an air bearing table (17) is incorporated in the lift mechanism to provide the pallet, and any article carried by the pallet, with lateral compliance while held at the datum position.Type: GrantFiled: October 30, 1985Date of Patent: February 20, 1990Assignee: International Business Machines Corp.Inventors: John Dunsmore, David C. Teale
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Patent number: 4883439Abstract: A cathode ray tube fixturing device for position a face panel and a funnel during a frit sealing process. The device includes a cone holder for positioning a constricted portion of the funnel, and a movable abutting block which is adapted to abut against the panel and the funnel. A pivoting arm connects the cone holder with the movable abutting block, and at least one fixed abutting block is adapted to abut against the panel and the funnel and is located in opposed relationship with respect to the movable abutting block. When the funnel and the panel are mounted in the cone holder in assembled relation, their common centerline is vertical. In this assembled relation, the panel and funnel are urged against the fixed abutting block by the movable abutting block so that the seal from the panel to the funnel can be effectively produced and the fixturing device is reduced in weight.Type: GrantFiled: December 7, 1987Date of Patent: November 28, 1989Assignee: Sony CorporationInventors: Tatsurou Sakamoto, Masayoshi Ito, Yoshinori Yamano
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Patent number: 4820227Abstract: An apparatus for supporting a cathode-ray tube panel includes a pair of holders movable to come close to each other and to be separated from each other. Each holder includes elastic rollers. The panel is located between the rollers of the pair of holders. After the panel is located between the rollers of the holders, the holders are moved to a surfaces of the panel. The rollers of the holders are brought into contact with the surfaces of the panel. The holders are interlocked with an actuator. The actuator is interlocked with a lock plate through a ratchet mechanism. The holders can freely come close to each other by the ratchet mechanism although the lock plate is not pivoted. The holders can be brought into contact with panels having different sizes. In a contact state, the actuator locked with the lock plate through the ratchet mechanism is pivoted by a predetermined angle so as to cause the holders to come closer to each other. When the holders are thus moved, they are locked.Type: GrantFiled: April 17, 1987Date of Patent: April 11, 1989Assignee: Kabushiki Kaisha ToshibaInventors: Hidetoshi Itiki, Yoshihisa Kozasa
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Patent number: 4795391Abstract: A method of forming aligned apertures in the electrode plates of an electron gun which includes a plurality of electrode plates at least one of which is preapertured and at least another is unapertured. A boring tool, such as an electric-discharge machine, is sized to fit snugly within the aperture in the preapertured electrode plate. The boring tool is inserted through the aperture in the preapertured electrode plate whereby the plate aligns the tool in a position of concentricity. The tool is activated to form a precision concentric aperture in the unapertured electrode plate.Type: GrantFiled: June 26, 1987Date of Patent: January 3, 1989Assignee: Zenith Electronics CorporationInventors: Allen P. Blacker, Jr., Khem K. S. Garewal
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Patent number: 4792318Abstract: A device for warm press forming a plate-like member into a shadow mask for a color cathode ray tube comprises a mold for applying pressure to the plate-like member, including a heated inner section and an outer section, and insulation means between the inner and outer sections for reducing heat transmission from the inner section to the outer section for increasing the thermal efficiency of the device.Type: GrantFiled: May 15, 1987Date of Patent: December 20, 1988Assignee: Kabushiki Kaisha ToshibaInventors: Masanori Igaki, Sigeo Yoneyama, Yoshimichi Hori, Takayuki Satoh
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Patent number: 4772238Abstract: An apparatus and a process is disclosed for use in the manufacture of a color cathode ray tube having a tensed foil shadow mask with a central apertured area and an unapertured border. The apparatus, which provides for thermally expanding an in-process shadow mask, includes a pair of heated platens for embracing a mask. At least one of the platens has a recess therein with width and length dimensions no less than the apertured area such that migrant particles trapped between the platens cannot damage the apertured area.Type: GrantFiled: December 30, 1987Date of Patent: September 20, 1988Assignee: Zenith Electronics CorporationInventors: Karl H. Horn, Paul Strauss
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Patent number: 4752268Abstract: An exhaust oven for cathode ray tubes having a housing and a baffle structure arranged within the housing for forming an atmosphere circulating passage between them. There are formed, at least in heating and slow cooling zones within the housing, plural pairs of upper discharge ports through which the circulating atmosphere is supplied towards panel portions of the cathode ray tubes. There are also plural pairs of lower discharge ports through which the circulating atmosphere is supplied towards funnel portions of the cathode ray tubes. Both the upper and lower discharge ports are located on respective sides in the housing. The positioning and discharge direction of the upper and lower discharge ports reduce the temperature difference between different portions of the cathode ray tubes to less than 10.degree. C. Thus, breakage of tubes owing to heat stresses is virtually eliminated.Type: GrantFiled: July 25, 1986Date of Patent: June 21, 1988Assignee: Chugai Ro Co., Ltd.Inventors: Satoshi Kataoka, Hiroshige Nakagawa
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Patent number: 4731040Abstract: In a method for manufacturing a cathode ray tube, a bulb is held by a first holding mechanism. An electron gun is inserted and held in a neck portion of the bulb by a second holding mechanism. Then, the neck portion and a stem of the electron gun are welded by a welding unit. The unit includes an annular burner having an inner surface with a plurality of burner holes formed in substantially the entire area along a circumferential direction thereof. The annular burner is constructed by two burner members which can be separated in a radial direction. The burner is positioned by an opening/closing mechanism and a reciprocating mechanism such that the inner peripheral surface of the burner is coaxially located outside the neck portion and opposes the stem of the electron gun. Thereafter, the neck portion is heated by flames injected from the burner holes, and then the burner is reciprocally rotated about its axis through a predetermined angle.Type: GrantFiled: December 23, 1986Date of Patent: March 15, 1988Assignee: Kabushiki Kaisha ToshibaInventors: Fujio Tominaga, Akihiro Hayashi, Yasunori Minamoto
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Patent number: 4693692Abstract: A lamp bulb has a closed lens-shaped head received in a recess in a bulb holder jig and an open end held by a heating carbon jig. A bead supporting a pair of lead wires with a filament connected thereto is disposed in the open end of the bulb, with the lead wires being supported on a lead wire holder. The jigs and holder are housed in a chamber in which a vacuum is developed. A gas to be filled in the bulb is introduced into the chamber under a desired pressure irrespective of atmospheric pressure. Then, an electric current is passed through the heating carbon jig to heat the latter for fusing the open end of the bulb and the bead, and at the same time the closed end of the bulb is cooled by the bulb holder jig which is supplied with a coolant liquid. After the bulb and the bead have been fused together, the electric current flowing through the heating carbon jig is cut off to stop the heating of the heating carbon jig. Then, the chamber is removed, and the completed lamp is taken out.Type: GrantFiled: August 20, 1986Date of Patent: September 15, 1987Assignee: Hamai Electric Lamp Co., Ltd.Inventor: Jitsuo Hamai
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Patent number: 4573935Abstract: A sealing fixture for aligning the sealing edges of a funnel and a panel of a kinescope during fritting is tilted so that a funnel placed in the fixture is gravity moved toward a corner of the fixture. All contact between the funnel and the fixture is made through rotatable referencing elements so that gravity accurately positions the funnel in the fixture.Type: GrantFiled: January 19, 1984Date of Patent: March 4, 1986Assignee: RCA CorporationInventor: Myron H. Wardell, Jr.
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Patent number: 4543071Abstract: To increase production of magnetrons, a spiral fin is wound on a magnetron body as soon as it is produced, and a leading end and a trailing end of the fin are fixed to the magnetron body. This increases the number of turns of the fin wound on the magnetron body and improves the bond strength with which the fin is bonded to the magnetron body to thereby increase the effect achieved by the fin in dissipating heat and avoiding a decline in the performance characteristics of the magnetron.Type: GrantFiled: January 4, 1984Date of Patent: September 24, 1985Assignee: Hitachi, Ltd.Inventors: Hiroya Murakami, Mitsuhiro Takasaki
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Patent number: 4374452Abstract: An apparatus for fabricating a quadrupole shadow mask includes a reel for storing a web of insulating material having a conductive layer on one side thereof, a reel for storing a long metal strip having a plurality of spaced apertures arranged in parallel rows, means for cutting the web into strips and a roller having circumferential grooves for positioning and then pressing the insulating strips onto the surface of the metal strip between the rows. The resulting strip is guided through a heating device and then is cut into sheets of predetermined length.Type: GrantFiled: April 23, 1980Date of Patent: February 22, 1983Assignee: U.S. Philips CorporationInventor: Jacob Koorneef