With Vibration Damping Device Patents (Class 313/269)
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Patent number: 10784099Abstract: To aim at a prevention of an occurrence of failure in and an extension of the life span of an incandescent light bulb by reducing the impact of an external force, which is applied to an outer lead wire positioned outside a bulb, on the connections between the lead wire and another element when manufacturing the incandescent light bulb, especially in a socket mounting process. In an incandescent light bulb wherein a filament assembly having filaments and lead wires which support the filaments is sealed in a bulb, a shape which, being easy to bend, enables a reduction in the impact of an applied external force on another element is imparted to a region of a predetermined length which includes the boundary of the lead wires between inside and outside the bulb. For example, a region in which the cross-sectional shape of the lead wires is changed by crushing is provided.Type: GrantFiled: May 16, 2019Date of Patent: September 22, 2020Assignee: STANLEY ELECTRIC CO., LTD.Inventor: Satoshi Yasuda
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Patent number: 9991099Abstract: A chemical vapor deposition source that includes at least one plate to which first and second electrical connection posts are coupled. The chemical vapor deposition source also includes a filament having a first end and a second end. The first end of the filament is electrically connected to the first electrical connection post and the second end of the filament is electrically connected to the second electrical connection post. The chemical vapor deposition source further includes at least one filament holder electrically insulated from the at least one plate. The at least one filament holder holds a portion of the filament between the first end and the second end.Type: GrantFiled: November 12, 2015Date of Patent: June 5, 2018Assignee: SEAGATE TECHNOLOGY LLCInventors: Samuel Lewis Tanaka, Christopher L. Platt, Thomas Larson Greenberg
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Patent number: 9472327Abstract: The disclosed concept relates to hollow core arrester membranes generally and, in particular, to membranes that include a pultruded tube composed of fibers and resin, and one or more wrap layers composed of fibers and resin in the form of a mat or fabric. The one or more wrap layers are applied to the pultruded tube to form a wrapped, pultruded tube, which is over molded with a polymer enclosure.Type: GrantFiled: December 21, 2015Date of Patent: October 18, 2016Assignee: COOPER TECHNOLOGIES COMPANYInventors: Michael M. Ramarge, Timothy Stephen Smith, Jeremy Lane Martin
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Patent number: 9425074Abstract: A heat treatment apparatus performs a heat treatment on a plurality of target objects held by a holding unit while allowing an inert gas to flow upwardly in a vertical processing container with at least one heating unit provided in the vicinity of the processing container. The heat treatment apparatus includes: a main temperature control unit configured to control the heating unit; an inert gas passage through which the inert gas flows into the processing container; an inert gas heating unit installed in the inert gas passage and configured to heat the inert gas; a first temperature measuring unit installed in the inert gas heating unit; and a temperature controller configured to control the inert gas heating unit based on temperatures measured by the first temperature measuring unit.Type: GrantFiled: June 20, 2013Date of Patent: August 23, 2016Assignee: TOKYO ELECTRON LIMITEDInventors: Shinji Asari, Hidekazu Sato, Tomohiro Shiobara
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Patent number: 9182102Abstract: A reflector having a reflection pattern for compensating for a lighting characteristic of an LED package includes a body configured to be matched and coupled with the LED package having a discontinuous chip arrangement structure to improve the lighting characteristic of the LED package for divergent light. The body includes an inner wall having a diameter which is increased upwardly to form a narrow bottom and a wide top and including an opening formed at a lower end thereof so as to arrange the LED package therein. The inner wall of the body is formed with a trigonometric cross-wave pattern part which is patterned such that sine wave-type waves curved to form peaks and valleys are arranged to cross in a horizontal direction and a vertical direction at predetermined intervals over the whole area. The reflection pattern can compensates for an incomplete lighting characteristic of an LED package itself.Type: GrantFiled: November 15, 2012Date of Patent: November 10, 2015Inventors: Dong Hoon Hyun, Myeung Jae Noh
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Patent number: 8622553Abstract: A laser projector includes a housing, a light source arranged within the housing, and a vibration module arranged within the housing to cause the light source to vibrate in a predetermined range.Type: GrantFiled: March 24, 2011Date of Patent: January 7, 2014Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Ping-Yang Chuang
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Patent number: 7928643Abstract: This document invention relates to a display apparatus, and more particularly, to a plasma display apparatus. The plasma display apparatus according to an embodiment of the present invention comprises a plasma display panel in which upper and lower substrates are combined, a vibration damping sheet formed on a rear surface of the plasma display panel, and a plurality of driving circuit substrates formed on a rear surface of the vibration damping sheet, for driving the plasma display panel. According to an embodiment of the present invention, noise occurring in a discharge of a plasma display panel and driving circuit elements is precluded. Therefore, a high level of noise reduction can guaranteed and the manufacturing cost of a plasma display apparatus can be saved.Type: GrantFiled: December 22, 2005Date of Patent: April 19, 2011Assignee: LG Electronics Inc.Inventor: Woon Seo Shin
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Publication number: 20110084589Abstract: An electric incandescent lamp comprising at least one incandescent filament is provided. The incandescent filament is arranged inside a translucent envelope. The lamp also comprises support wires that protrude out of a stem. The filament has end portions, and each end portion is fixed to a corresponding support wire at a junction point. At least one of the support wires comprises at least one narrowed portion for reducing vibration. The narrowed portions are disposed between the junction point and the stem. In an exemplary embodiment of another aspect of this invention, at least one of the support wires has a second section overhanging beyond the junction point of the end portion of the filament. The at least one narrowed portion for reducing vibration is comprised by the second section. A method for reducing vibration is also disclosed. This method comprises a step of forming at least one narrowed portion in at least one of the support wires.Type: ApplicationFiled: October 13, 2009Publication date: April 14, 2011Inventors: Tamás Torma, István Magai, László Makai, Zsolt Kapocs
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Patent number: 7733022Abstract: Disclosed herein is a plasma display panel in which afterimage is improved. The plasma display panel according to the present invention includes a panel unit having an upper plate and a lower plate, a frame that supports circuitry, and a conductive material formed between the panel unit and the frame. As such, a conductive material is formed on a bottom surface of a lower plate of a panel. Thus, charges introduced into the lower plate are properly controlled to improve the waveform stability of the panel. Also, a charge characteristic is improved to implement a stable operation. Accordingly, an afterimage time can be reduced. Further, a sheet of a low hardness and light weight is used. It is thus possible to absorb shock and noise of a PDP, accomplish light weight of the PDP and reduce the materials of the sheet.Type: GrantFiled: January 14, 2005Date of Patent: June 8, 2010Assignee: LG Electronics Inc.Inventors: Deok Soo Kim, Byung Chul Lee, Jin Young Kim, Yun Gi Kim, Sung Gon Shin, Sung Min Jun
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Patent number: 7518301Abstract: In an electron tube including vibration absorbers for linear members such as filaments, a vibration absorbing means that is made of a vibration absorber with a large vibration absorption effect, has a simple configuration, and is attachable easily to filaments is provided. The vibration absorbing means is formed of a holder 231, a vibration absorber 241, and a getter shielding member 251. These three members are attached to a shielding electrode S overlying the front substrate 111 to dispose the vibration absorber 241 between the holder 231 and getter shielding member 251. The vibration absorber 241 is mounted to slide or rotate between the holder 231 and the getter shielding member 251. The vibration absorber 241 has an aperture 2413 in which the filament is engaged. The bottom (apex) of the aperture 2413 is formed eccentrically. The vibration absorber 241 is in line contact with the shielding electrode S, as shown in FIG. 3(c).Type: GrantFiled: January 14, 2005Date of Patent: April 14, 2009Assignee: Futaba CorporationInventors: Yukihiko Shimizu, Masao Saito, Kinya Ueda, Masahiro Nakayama, Kazushige Noguchi
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Publication number: 20070228918Abstract: A plasma display module that can reduce noise is provided. The plasma display module includes a plasma display panel (PDP) that displays images, a driving apparatus driving the plasma display panel, a chassis supporting the plasma display panel and the driving apparatus. The chassis is disposed between the plasma display panel and the driving apparatus. A vibration reduction unit is disposed on a portion of a non-display are of the plasma display panel. The vibration reduction unit effectively removes noises generated during the operation of the plasma display panel.Type: ApplicationFiled: March 26, 2007Publication date: October 4, 2007Inventor: Tae-Kyoung Kang
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Patent number: 7227308Abstract: A lamp includes a reflector including a reflective portion, a heel, and a nose, wherein the nose includes an opening. A light source is disposed in the reflector. A pair of leads connects to the light source. An eyelet protrudes through the opening in the nose and receives one of the leads. A positioning member is disposed in the heel portion of the reflector. The positioning member includes an opening to receive the light source.Type: GrantFiled: November 24, 2003Date of Patent: June 5, 2007Assignee: General Electric CompanyInventor: Mark S. Rense
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Patent number: 7187111Abstract: A mounting structure for an arc tube within an outer envelope of an HID lamp, including an elongated frame supported at one end by a stem assembly and a stem clamp having one or more frame retaining tabs crimped around a portion of the frame.Type: GrantFiled: March 24, 2000Date of Patent: March 6, 2007Assignee: Advanced Lighting Technologies, Inc.Inventor: Jeffrey L. Johanning
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Patent number: 7157841Abstract: An electron tube includes a vessel, a primary linear member installed in the vessel, an electrode disposed in the vessel, a first auxiliary linear member and a second auxiliary linear member disposed at different heights to interpose the primary linear member therebetween, and a plurality of fixing members. The fixing members are formed at a single substrate for constituting a part of the vessel, for fixing end portions of the first auxiliary and the second auxiliary linear member thereto.Type: GrantFiled: March 4, 2004Date of Patent: January 2, 2007Assignee: Futaba CorporationInventors: Yoshihisa Yonezawa, Yasuhiro Nohara, Hiroaki Kawasaki
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Patent number: 7135811Abstract: A multi-functional shroud/arc tube support or clip (40a) for a high intensity discharge lamp (10). The support (40a) has one end (42) formed to engage a shroud (20). The one end (42) is formed as an arcuate member (43). A middle portion (44) is formed of separated, depending legs (46, 48) defining a space (50) therebetween for clasping the substantially rectangular pinch seal (52) of a quartz arc tube (14). The central section (53) is formed to clasp the cylindrical capillary (54) of a ceramic arc tube (14a). The central section (53) comprises the bight of a pair of U-shaped legs and the bights are provided with opposing, substantially hemi-cylindrical concavities (53a).Type: GrantFiled: February 8, 2005Date of Patent: November 14, 2006Assignee: Osram Sylvania Inc.Inventors: John A. Scholz, Peter R. Ness
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Patent number: 7005800Abstract: An incandescent electric lamp includes a bulb, current-conductor wires, a filament having turns arranged in spiraling fashion around an axis of revolution, one end of the filament being connected to a conductor wire, a metal support connected to the other conductor wire and to the other end of the filament, and a metal bracket which is in electrical contact with one of the ends or one of the turns of the filament and which comprises a portion parallel to the axis of revolution of the filament and situated below the filament when the lamp is in its normal operating position. The metal bracket is, for example, at the potential of the end. At the end of lamp life, the filament sags and comes into contact with the metal bracket, thus causing a short-circuit and a breaking of the filament, which prevents an explosion of the lamp.Type: GrantFiled: August 16, 2002Date of Patent: February 28, 2006Assignee: Koninklijke Philips Electronics N.V.Inventor: Jacky Paul Marchand
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Patent number: 6924595Abstract: Damping and muffling structure for EL cell includes a transparent substrate, a front electrode layer, a lighting layer, an inducing layer and an insulating layer that are sequentially overlaid on the substrate. A back electrode layer and a conductive member are laid on the inducing layer. The conductive member is adjacent to the back electrode layer without contacting therewith. The conductive member is laid on both the inducing layer and the front electrode layer to electrically connect the inducing layer with the front electrode layer. The front electrode layer is connected to a grounding electrode of the driving circuit, whereby the conductive member can quickly remove the charge accumulating on the inducing layer so as to minify or even eliminate the vibration and noise of the EL cell.Type: GrantFiled: June 2, 2003Date of Patent: August 2, 2005Assignee: Wintek CorporationInventors: Chih-Yuan Wang, Heng Yi Chang
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Patent number: 6914375Abstract: Dynamic vibration absorber in a CRT having a shadow mask fastened to an inside surface of a panel by main frames, including a base part to be fitted to a non-effective surface of the shadow mask, and a vibration absorbing part having one end connected to the base part and the other end designed to make no contact with the shadow mask and the main frame, thereby attenuating vibration of the shadow mask.Type: GrantFiled: June 3, 2002Date of Patent: July 5, 2005Assignee: LG. Philips Displays Korea Co., Ltd.Inventor: Ho Jun Lee
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Patent number: 6900583Abstract: Color cathode-ray tube comprising a color selection mask (8) placed on a metal frame (19), the said frame comprising, on at least two opposite sides, means of damping vibrations of the mask, of the type comprising two masses (51) connected to the surface of the frame by a connection having a mechanical clearance between the facing surfaces of the mask and of the frame.Type: GrantFiled: June 4, 2003Date of Patent: May 31, 2005Assignee: Thomson Licensing S. A.Inventors: Pierluigi Testa, Enzo Arata, Ivano Domenicali
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Publication number: 20040245907Abstract: Colour cathode-ray tube comprising a colour selection mask tensioned in at least one direction inside a metal frame, the said frame comprising on at least two opposed sides means for damping vibrations of the mask of the type comprising a central part joined to the surface of the frame and two wings extending on each side of the central part and coming into contact with the mask.Type: ApplicationFiled: March 5, 2004Publication date: December 9, 2004Inventor: Enzo Arata
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Publication number: 20040150321Abstract: A fluorescent display tube is disclosed. In the fluorescent display tube, linear members, such as, for example, wire grids and filament are sustained in a predetermined height, while both ends of each linear member are welded on a metal layer by ultrasonic. The fluorescent display tube includes a metal spacer for fixing the linear member and holding the linear members in an elevated position so that the dead space within the fluorescent display is reduced. The linear members are bonded on an aluminum thin films formed on the glass substrate 111 by way of the aluminum spacer. The aluminum spacer sustains the linear members in a predetermined height. Aluminum spacer acts as a member for fixing the linear member and as a height level holding member.Type: ApplicationFiled: December 16, 2003Publication date: August 5, 2004Inventors: Yoshihisa Yonezawa, Yukio Ogawa, Yasuhiro Nohara
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Patent number: 6707244Abstract: A dynamic focus electrode has a vibration-damping portion formed by a beading process at a peripheral portion of an electron beam passage hole thereof, a plate face thereof, or an embedment portion thereof. Thereby, vibration of the dynamic focus electrode is suppressed.Type: GrantFiled: May 28, 2002Date of Patent: March 16, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Junichi Kimiya, Hiroyuki Oda, Takahiro Hasegawa
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Patent number: 6700319Abstract: A cathode-ray tube having a luminescent screen on a faceplate panel and a tension mask assembly, wherein the assembly comprises a pair of support blades for supporting a tension mask. The tension mask has a pair of mask borders each being fixed to a respective support blade and a plurality of strands extending between the mask borders. The mask further comprises cross wires extending generally perpendicular to the strands on a screen facing side and at least one shield assembly extending between and attached to the mask borders. The shield assembly has a sheath extending along one side of the mask in contact with at least one strand and a shield attached to the cross wires of the mask in overlapping relation to the sheath.Type: GrantFiled: November 29, 2001Date of Patent: March 2, 2004Assignee: Thomson Licensing S. A.Inventors: Joey John Michalchuk, Richard William Nosker
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Patent number: 6686683Abstract: A vibration damping member penetrates through two mounting apertures provided in a shadow mask with tension applied thereto, so as to be attached to the shadow mask in a freely movable state. The vibration damping member has two penetrating portions each passing loosely through one of the two mounting apertures and a bridge portion linking these portions. A protrusion protruding toward the shadow mask is provided in the bridge portion of the vibration damping member. This configuration regulates a tilted angle of the vibration damping member with respect to the face of the shadow mask, thus preventing a phenomenon in which a bending portion is caught by the edge of the mounting aperture so that the vibration damping member is pinned by the shadow mask. As a result, the freely movable state of the vibration damping member can be kept always, and therefore vibrations of the shadow mask can be dampened effectively and a color cathode ray tube with reduced color displacement can be provided.Type: GrantFiled: May 16, 2003Date of Patent: February 3, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Futoshi Ohtsuka, Kiyohito Miwa, Hirotoshi Watanabe
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Publication number: 20030227242Abstract: Colour cathode-ray tube comprising a colour selection mask (8) placed on a metal frame (19), the said frame comprising, on at least two opposite sides, means of damping vibrations of the mask, of the type comprising two masses (51) connected to the surface of the frame by a connection having a mechanical clearance between the facing surfaces of the mask and of the frame.Type: ApplicationFiled: June 4, 2003Publication date: December 11, 2003Inventors: Pierluigi Testa, Enzo Arata, Ivano Domenicali
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Patent number: 6641276Abstract: A lighting device which is arranged on motor vehicles and/or in interiors of motor vehicles is proposed. It includes an electroluminescent layer assembly comprising at least one first electrode layer, a dielectric layer, an electroluminescent luminous layer and a transparent second electrode layer, wherein the electroluminescent layer assembly is arranged on a support and/or in a frame and the electrode layers are connected to an a.c. voltage control device. Preferably the electroluminescent layer assembly with the support and/or frame as well as the a.c. voltage control device with components and wiring arranged on a printed circuit board which is connected to the support and/or simultaneously constructed as a support for the electroluminescent layer assembly, and if necessary a transparent cover covering the electroluminescent layer assembly, form a compact structural unit.Type: GrantFiled: June 26, 2000Date of Patent: November 4, 2003Assignee: Magna Reflex Holding GmbHInventors: David Macher, Heinz Ziorn, Johann Stark, Raimund Fritzl
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Publication number: 20030193283Abstract: An EL light emission device includes an expanded plastic layer provided on at least one of front and rear surfaces of an EL panel, serving as a damping layer to absorb vibration. The expanded plastic layer has air pockets existing therein, and absorbs vibration thereby substantially preventing the vibration from propagating to the circuitry of an associated electronic device (e.g., the portable telephone). This reduces the amount of noise in the electronic device, and in turn, performance is improved.Type: ApplicationFiled: May 2, 2003Publication date: October 16, 2003Inventor: Shigehiko Aoki
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Patent number: 6628056Abstract: A mask assembly for a cathode ray tube includes a tension mask having an effective portion formed with strips spaced apart from each other forming slots there between and a non-effective portion surrounding the effective portion. A mask frame includes a pair of supporting members along long sides of the tension mask and a pair of elastic members spacing the supporting members from each other by a predetermined distance. Vibration damping members damp vibration of the tension mask, where the vibration damping members are tensioned in a longitudinal direction to pressurize the non-effective portion.Type: GrantFiled: February 22, 2002Date of Patent: September 30, 2003Assignee: Samsung SDI Co., Ltd.Inventor: Kuen-Dong Ha
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Patent number: 6621204Abstract: A clamp unit which brings respective vertical and horizontal cores and bias magnets of a magnetic current modulator into close contact with each other in the core arrangement direction is provided to a resin casing of the magnetic current modulator. Due to such a constitution, the generation of an uncomfortable sound derived from a magnetic distortion of cores of the magnetic current modulator incorporated in a deflection unit can be prevented.Type: GrantFiled: February 22, 2002Date of Patent: September 16, 2003Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.Inventors: Takateru Kakesu, Nobuyuki Koganezawa, Kouichi Honma
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Patent number: 6608433Abstract: A vibration attenuator is attached to a shadow mask in a movable condition without being adhered to the shadow mask. The vibration attenuator has depressions, and is attached to the shadow mask by inserting its foot portions through holes provided in the shadow mask, and folding them at the depressions, thereby deforming the vibration attenuator into an approximately rectangular shape. Because a vibration energy of the shadow mask is consumed by friction due to a contacting or sliding of the vibration attenuator with the shadow mask, vibration of the shadow mask can be attenuated effectively with a simple structure.Type: GrantFiled: September 14, 2000Date of Patent: August 19, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Teruhisa Kodama, Tatsuzo Hayashi, Satoshi Ohta, Yoshikazu Demi
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Patent number: 6590328Abstract: A tension mask frame assembly for a color cathode-ray tube, including a tension mask, a frame and a vibration prevention unit, is provided. In this tension mask frame assembly, the tension mask has a slotted portion in which a plurality of electron beam passing holes are formed and a non-slotted portion located on the edge of the slotted portion. The frame supports two facing sides of the tension mask to apply a tensile force to the tension mask. The vibration prevention unit includes a damper having first and second attenuation portions that are maintained at a predetermined angle to form an insertion portion into which the edges of the tension mask not supported by the frame are inserted, and a support member for suspending the damper from the edges of the tension mask by passing through the first and second attenuation portions and the edges of the tension mask inserted into the insertion portion formed by the first and second attenuation portions.Type: GrantFiled: August 9, 2001Date of Patent: July 8, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Soon-Cheol Shin, Sang-Shin Choi, Woo-Il Park, Il-Hwan Jang, Eung-Suk Lee
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Patent number: 6580204Abstract: There is provided a hook assembly attached to a shadow mask frame including a base and a spring with a hole in one end thereof and the other end attached to said base, wherein a middle portion of said base is arched such that the arched portion takes the shape of a tunnel.Type: GrantFiled: June 28, 2000Date of Patent: June 17, 2003Assignee: Samsung SDI Co., Ltd.Inventors: Wan Kim, Choong-lak Kim, Gi-young Song
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Patent number: 6580210Abstract: A method of manufacturing an electron gun having a sub-assembly to interconnect the beaded unit and the base of the electron gun. This sub-assembly is manufactured by making a pattern of apertures in a planar element, thereby forming a number of securing elements. In the next step, portions of the securing elements are bent out of the plane of the planar element and then connected to an insulating plate, thus forming the sub-assembly of securing elements and insulating plate. This sub-assembly is preferably provided with funnel-shaped apertures to lead the electric leads of a number of gun electrodes through the insulating plate. This allows an accurate and easy interconnection of the electric leads and the pins of the base.Type: GrantFiled: June 8, 2000Date of Patent: June 17, 2003Assignee: Koninklijke Philips Electronics N.V.Inventors: Johannes Peter Lodevicus Houben, Marinus Adrianus Maria Van De Veerdonk
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Patent number: 6570312Abstract: The invention provides a tension mask support frame assembly having a pair of support blade members attached to a frame. The support blade members are attached to opposite sides of the frame at a central location whereby each support blade member has a pair of distal ends extending from the central attachment point. A damping scrubber is disposed in the space between the support blade member and the frame near a distal end of the support blade members. Vibrations in the tension mask are thereby reduced through the transfer of the vibrations to the frame through rubbing action of the damping scrubbers.Type: GrantFiled: September 12, 2001Date of Patent: May 27, 2003Assignee: Thomson Licensing S. A.Inventors: Joey John Michalchuk, Alan Weir Bucher
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Color selecting member method of preventing vibration of color selecting member and cathode ray tube
Patent number: 6525458Abstract: A technique is described for lightening a shadow of a damper line for preventing vibration of a color selecting member cast on a video screen and further preventing occurrence of the shadow. In a cathode ray tube in which electron beams emitted from neighboring electron guns cross each other before passing through a plurality of apertures of a color selecting member and has an area through which both of the electron beams pass. A damper line is provided in the area through which both of the electron beams pass. Since one of the electron beam falls on a shadow cast by the other electron beam, the shadow becomes lighter.Type: GrantFiled: June 14, 2000Date of Patent: February 25, 2003Assignee: Sony CorporationInventors: Shoichi Muraguchi, Masamichi Okada -
Patent number: 6472806Abstract: A tensioned shadow mask for a cathode ray tube (CRT), including: a series of parallel strips separated by slits having a predetermined interval; a plurality of tie bars interconnecting adjacent strips to define a plurality of slits at predetermined intervals; and a plurality of dummy bridges disposed between adjacent tie bars, extending from one of the strips to the other but not interconnecting the adjacent strips, wherein a length of the dummy bridges is greater than a length of the tie bars in the longitudinal direction of the strips.Type: GrantFiled: December 16, 1999Date of Patent: October 29, 2002Assignee: Samsung SDI Co., Ltd.Inventors: Wan Kim, Soon-chul Shin, Gwang-soo Kang
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Patent number: 6469431Abstract: A color cathode-ray tube that can attenuate vibration of an entire shadow mask positively with a simple structure. The color cathode-ray tube includes a frame-shaped mask frame and a shadow mask in which many apertures are formed in a flat plate, the shadow mask stretched and fixed in the mask frame in a condition in which a tension force is applied in one direction. The amplitude in the end portions of the shadow mask is not less than a certain amount relative to the amplitude in the center portion of the shadow mask, in a resonance of the shadow mask caused by a vibration propagated to the color cathode-ray tube. Furthermore, by providing vibration attenuators at the end portions of the shadow mask, vibrations at the end portions of the shadow mask are attenuated as the side surfaces of the shadow mask slide on the vibration attenuators. Thus, vibration of the entire shadow mask can be extinguished positively.Type: GrantFiled: August 27, 1999Date of Patent: October 22, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideo Suzuki, Michiaki Watanabe, Yoshikazu Demi, Mitsunori Yokomakura
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Patent number: 6465939Abstract: A robust coiled filament electrode for a fluorescent lamp used in high vibration environments. A cylindrical mandrel is placed within coils in each end of a coiled filament electrode. The mandrel and the coiled filament electrode are held by a mounting post. The mounting post is bent over and crimped, holding the mandrel and coiled filament electrode. The mandrel extends inward between the two mounting posts, providing support for the coiled filament electrodes. The coiled filament electrode may be made by method or process of chemically dissolving selected portions of a mandrel. Lamp life is extended, as well as the variance between lamp life is substantially reduced. The present invention is particularly applicable to applications in avionics.Type: GrantFiled: December 2, 1999Date of Patent: October 15, 2002Assignee: LCD Lighting, Inc.Inventors: Patrick C. Ward, Robert E. Cassidy
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Patent number: 6459192Abstract: The electric lamp has a tubular envelope (1) in which a lamp vessel (10) is axially accommodated, held by a first (5) and a long second pole wire (6). The second pole wire (6) has a longitudinal portion (61) merging at a first bend (611) into a first Z-shaped support portion (62) having support points (621, 622) against the envelope (1). The first support portion (62) is connected to a transverse portion (63) to which a current conductor (12) of the lamp vessel (10) is secured and which is connected to a second support portion (64) which extends in an axial plane along the lamp vessel (10) and has a support point (641) against the envelope (1). The second pole wire (6) is effective in supporting the lamp vessel (10) and maintaining the position thereof.Type: GrantFiled: July 26, 2000Date of Patent: October 1, 2002Assignee: Koninklijke Philips Electronics N.V.Inventor: Liane Lammers
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Patent number: 6388367Abstract: An aperture grille which can suppress vibrations of a flat grille without marring the appearance of a screen by not arranging damper lines inside an effective screen region of a cathode-ray tube. A pair of damper members 130A and 130B for damping the vibrations of a flat grille 110 are provided in upper and lower regions of the flat grille 110 outside an effective screen region of a cathode-ray tube. The damper members 130A and 130B are supported under a given tension by support members 132 and 134 mounted on second frames 124A and 124B of a frame member, thereby keeping pressure contact with the surface of the flat grille 110. Because the damper members 130A and 130B are not exposed to the effective screen region of the cathode-ray tube, the damper members 130A and 130B are out of sight from the front side of the screen, thus suppressing the vibrations of the flat grille 110 without marring the appearance of the screen.Type: GrantFiled: October 19, 1998Date of Patent: May 14, 2002Assignee: Sony CorporationInventor: Hiromichi Taguchi
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Patent number: 6091193Abstract: A mesh grid for a fluorescent display tube capable of effectively preventing a deformed mesh from being in contact with fluorescent substance without disturbing indications on an anode display unit. The mesh grid is mounted over an anode substrate with adhesive. A mesh of the mesh grid is disposed over the anode display unit including a plurality of anode segments. The mesh is formed in a hexagonal pattern. On the mesh, protruding portions directed to the anode display unit are formed. The protruding portions are disposed at positions opposing the anode display unit but not opposing each of the anode segments. The protruding portions are formed by pressing the mesh toward the anode display unit with each intersection of fine wires in a hexagonal pattern.Type: GrantFiled: March 26, 1997Date of Patent: July 18, 2000Assignee: Futaba Denshi Kogyo K.K.Inventors: Michio Kuwamoto, Teruo Yamaguchi
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Patent number: 6054803Abstract: It is possible to improve a vibration-proof band shaped grid element in a color selecting mechanism. In a color selecting mechanism 1 for a color cathode ray tube, in which a color selecting electrode thin plate (10) having a number of band shaped grid elements (8) and a slit shaped electron beam penetrating aperture (9) formed between respective neighboring grid elements (8), is seam-welded on a frame (6), the ratio of a length a of the above mentioned slit shaped electron beam aperture (9) to a distance (b) from an end portion of the above mentioned electron beam penetrating aperture (9) to a seam-welded orbit (17) or b/a.times.100 is set equal to or less than 2.5 percent.Type: GrantFiled: April 14, 1998Date of Patent: April 25, 2000Assignee: Sony CorporationInventor: Koji Saita
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Patent number: 5719463Abstract: A metal halide arc discharge lamp includes a sealed outer envelope, an arc tube located within the envelope, a cylindrical shroud positioned around the arc tube, stops positioned at ends of the shroud to capture the shroud therebetween, conduction wires which both provide electrical energy to the arc tube and mechanically support the arc tube and the shroud, and a compression spring secured by an eyelet for removing tension loading from the arc tube.Type: GrantFiled: June 3, 1996Date of Patent: February 17, 1998Assignee: General Electric CompanyInventors: Martin N. Hassink, Gerald E. Duffy
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Patent number: 5686794Abstract: To positively locate a filament (5, 22) in position within a bulb (2) of a halogen incandescent lamp, the walls of the bulb are deformed at selected points along the length of the filament within the bulb to define at least three inwardly projecting dimples which just barely engage, or engage, the filament. Preferably, the filament is formed with a connecting portion (7) in the region of engagement, which connecting portion is either straight, coiled with a very steep pitch, or, if the filament is double-coiled, only single-coiled. The connecting portion (7) may be electrically short-circuited by a core pin (39). If the bulb is single-ended (FIG. 3), a return lead (29) along the wall of the bulb, can be pinched between adjacent walls (45) of adjacent dimples. The dimples, looked at from the outside of the lamp, are essentially funnel-shaped and, in cross section, may be circular, or if space between adjacent dimples is insufficient, may be elliptical.Type: GrantFiled: June 5, 1996Date of Patent: November 11, 1997Assignee: Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbHInventors: Hans-Juergen Streppel, Hans Liermann, Juergen Eder
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Method of making an electric incandescent lamp, and electric lamp made in accordance with the method
Patent number: 5680009Abstract: To permit easy assembly of a filament for a halogen incandescent lamp hav a filament holder frame (4) to retain an essentially planar filament (11) in position, the frame is made of two pre-manufactured identical frame halves (4a, 4b). Both frame halves have a cross element (7a, 7b), having a plurality of filament holders (10a, 10b) secured thereto, and two support strut portions (8a, 9a, 8b, 9b) at the ends thereof. To assemble the lamp, the two frame halves, together with the filament (11), are placed in a suitable jig, and the filament ends are threaded on one of the support strut portions (8a, 8b) of each one of the frame halves. The filament (11) is hooked on the filament holder (10a, 10b) and, by spreading apart the frame halves, the filament is stretched. The support strut portions (8a, 8b; 9a, 9b) are then connected by welding, thus completing the frame (4), and retaining the filament in stretched position.Type: GrantFiled: June 17, 1996Date of Patent: October 21, 1997Assignee: Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbHInventors: Andreas Krinke, Herbert Kugler -
Patent number: 5625254Abstract: A fluorescent character display tube has an anode base plate, a frame, a filament supporting member, and a fixing layer. The frame is provided above the anode base plate and the filament supporting member is welded on the frame. The fixing layer is provided between the frame and the anode base plate such that the frame is securely and air-tightly fixed to the anode base plate. The fixing layer may be a low melting point glass layer or a high heat-resistant resin. The high heat-resistant resin may be polyimide. The arrangement enables to reducing the vibration of the frame thereby reducing the noise.Type: GrantFiled: June 16, 1995Date of Patent: April 29, 1997Assignee: NEC CorporationInventor: Shinichi Hamada
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Patent number: 5500566Abstract: A filament dampening system for a filament in a miniature lamp includes a glass bridge formed around the lead wires and the filament dampening wire.Type: GrantFiled: May 3, 1993Date of Patent: March 19, 1996Assignee: Cooper Industries, Inc.Inventors: Guenter E. Talmon-Gros, Donald H. Freeman, Thomas A. Flight, Raymond M. McCarthy, Anthony E. Kendall
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Patent number: 5451833Abstract: A damping arrangement for use with a shadow mask in a color cathode ray tube (CRT) absorbs vibrations of the shadow mask, particularly at low frequencies, to maintain registration of the shadow mask apertures with phosphor deposits on the inner surface of the CRT's faceplate for high video image color purity. A damping material having a higher modulus of elasticity (Young's modulus) than that of the shadow mask is applied to one or both surfaces of the shadow mask either over the entire surface or in spaced bands extending the length or width of the mask. The damping coating may be applied either by spraying or by vacuum deposition and may be comprised of virtually any material having a higher modulus of elasticity than that of the shadow mask such as a glass-based frit or a heavy metal such as tungsten or molybdenum.Type: GrantFiled: October 28, 1993Date of Patent: September 19, 1995Assignee: Chunghwa Picture Tubes, Ltd.Inventor: Hua-Sou Tong
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Patent number: 5406168Abstract: A color picture tube grid apparatus includes a mask, a frame, and a belt-like metal plate. The mask is constituted by an array of a large number of stretched grid elements defining a large number of slit holes. The frame has a pair of side frame portions for supporting the mask at two end portions of each of the grid elements in a stretching direction. The belt-like metal plate is in contact with end portions of the grid elements and arranged on at least one of two end portions of the mask to cross the array of grid elements.Type: GrantFiled: November 12, 1992Date of Patent: April 11, 1995Assignee: NEC CorporationInventor: Kouji Takagi
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Patent number: 5394051Abstract: A tension shadow mask CRT front assembly includes a flat strip shadow mask having a first wire and a second wire in contact with the strips of the mask on opposite sides of the mask for damping strip vibration. The two wires may be spaced apart on opposite sides of the mask, or lie directly opposite. If the wires are directly opposite, they may be formed from a single wire welded into a loop. The wires are held in tension by a spring attached to, and extending from, the inner surface of the faceplate.Type: GrantFiled: December 28, 1992Date of Patent: February 28, 1995Assignee: Zenith Electronics CorporationInventor: Martin L. Lerner