Electrical Shield Patents (Class 200/305)
  • Patent number: 9984838
    Abstract: Examples disclosed herein relate to a click pad. Examples include a circuit board and a switch formed to extend from the circuit board. A stationary pad surrounds all surfaces of the switch extending from the circuit board, is coupled to the switch opposite to the circuit board, and is to be compressed by actuation of the circuit board when a pressure is put on the click pad. A bracket is coupled to the pad to compresses the pad between the circuit board and the bracket.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 29, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Chin-Hung Huang, Ming-Jen Yu
  • Patent number: 9900981
    Abstract: A head assembly for a magnetic tape storage device includes a head and a flexible circuit connected to the head. The flexible circuit includes a gripping portion, an end including electrical contacts for the head, conductors extending from the electrical contacts, and ink patterned onto the electrical contacts and gripping portion to form electrical paths therebetween. The ink conducts electrostatic charge from the electrical contacts and conductors to a grounded user in response to skin of the user contacting the ink.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: February 20, 2018
    Assignee: Oracle International Corporation
    Inventors: Karl Ziegler, Kevin D. McKinstry
  • Patent number: 9899163
    Abstract: A switch unit has a display part configured to display an image, and an operation part provided on the display part in a stacked manner. The operation part includes a button made of a transparent material except for an edge, a transparent button case having an opening formed in a position corresponding to a display region of the display part and configured to position the button, and a transparent substrate provided below the button case and having an electronic component disposed in a position corresponding to the edge of the button. The button is disposed on the transparent substrate via the opening in the button case. A discharge gap in parallel with the electronic component is provided on a wire in a position corresponding to the edge of the button on the transparent substrate.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 20, 2018
    Assignee: OMRON Corporation
    Inventors: Takehiro Agata, Hiroyuki Onitsuka, Taichi Onoyama, Masaaki Sumi, Masataka Kimura
  • Patent number: 9851754
    Abstract: An information processing device includes: a case; a base member that includes an attachment hole and a positioning hole, and that is provided inside the case; a switch that is fixed to the base member; a button member that includes an operation button that moves toward and away from the switch; an anchor member that is provided at the button member, and that includes an insertion tab that is inserted into the attachment hole and a claw that projects out from a leading end side of the insertion tab and that is hooked onto an edge portion of the attachment hole; and a positioning protrusion that is provided at the button member, and that is inserted into the positioning hole, the positioning hole being formed in an elongated hole shape extending along a projection direction of the claw.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: December 26, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Takashi Abe, Takashi Iijima, Shinya Matsushita
  • Patent number: 9698571
    Abstract: An improved triggered arc flash arrester includes a shield apparatus disposed within an interior of an evacuated envelope and includes a first shield element and a second shield element. A plurality of conductors are partially disposed within the interior and are separated from one another by a gap. A first element of the shield apparatus is situated adjacent the envelope and is structured to protect the envelope from damage due to the high temperature plasma that results from an arc across the gap. A second element of the shield apparatus is interposed between the gap and at least a portion of the first element and is structured to protect the at least portion of the first element from damage due to an arc across the gap.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: July 4, 2017
    Assignee: EATON CORPORATION
    Inventors: John Joseph Shea, Ganesh K. Balasubramanian, Paul J. Rollmann, Robert Kirkland Smith
  • Patent number: 9640350
    Abstract: An insulated switchgear module is disclosed. In one example, the module comprises a vacuum interrupter, current exchange assembly, and end conductors disposed within an insulated housing. The insulated housing further comprises a tank containing an actuator mechanism for actuating the current exchange assembly. An insulating tray within the housing separates the vacuum interrupter from the components in the tank. The insulated tray has a shape that corresponds with the shape of the vacuum interrupter and the shape of the housing.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: May 2, 2017
    Assignee: COOPER TECHNOLOGIES COMPANY
    Inventors: Paul Newcomb Stoving, Robert Raymond Schuetz, Rose Ellen Weisburgh, William Robert Luoma, Joseph Allen Carmichael, Brian Andrew Korves, Laurence James Geist, Joseph Michael Hren
  • Patent number: 9412542
    Abstract: Featured is a particulate and pressure redirection barrier for an electrical breaker as well as a breaker embodying such a barrier. Such a barrier includes first through fifth segments, where the first segment includes a first and second side section and a bottom section that are coupled to each other so as to form a generally U shaped structure. The second segment is coupled to the first side section so it extends outwardly at an angle from the first side section. The third segment is coupled to the second side section so as to extend outwardly and at an angle from the second side section. The fourth segment is coupled to the second segment so as to extend outwardly from and at an angle with respect to the second segment. The fifth segment is coupled to the third segment so as to extend outwardly from and at an angle with respect to the third segment.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: August 9, 2016
    Assignee: Sensata Technologies, Inc.
    Inventor: Scott Weber
  • Patent number: 9299510
    Abstract: A key button apparatus is provided. The key button apparatus includes a housing having an opening, a moveable key button, a sealing member configured to seal the opening of the housing, deformed by movement of the key button, and molded of a plurality of elastic bodies made of different materials, and a switch disposed inside of the housing and pressed by deformation of the sealing member.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: March 29, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hyun-Mi Cheong
  • Patent number: 9272471
    Abstract: An accessory may be provided with a button controller having a microphone and switches. The switches may include dome switch members and metal switch terminals mounted in a switch module housing structure. The switch module housing structure may include one or more recesses in which electrical components are mounted. A conductive backplate may cover the recesses and may be coupled to the switch module housing structure. A conductive film may be attached to the switch module housing structure over the dome switch members. The conductive film and the conductive backplate may form an electromagnetic interference shield around the electrical components in the recesses. The switch module housing structure may include a non-conductive plastic overmolded onto a metal frame or may be formed from a first shot of non-conductive plastic and a second shot of conductive plastic to form an electromagnetic interference shield for the electrical components.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: March 1, 2016
    Assignee: Apple Inc.
    Inventors: Ian P. Colahan, Kurt R. Stiehl
  • Patent number: 9087661
    Abstract: An electrical switch arrangement has a switch housing and a button guided in the switch housing. The button can be brought into two fixed switching states. A display indicates when at least one of the switching states is reached. A U-shaped spring is arranged inside the button approximately at right angles to the direction of movement the button. The spring is guided in a guide track formed in sections of the switch housing.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: July 21, 2015
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Martin Koepsell
  • Patent number: 8913370
    Abstract: A spout assembly is provided. The spout assembly includes a spout and a spout base. The spout base has a cross-sectional area that is smaller than a spout sized to enclose an electrical switching apparatus electrical coupling. That is, the spout base includes a CT support surface with a cross-sectional area that is smaller than the spout cross-sectional area. Current transformers are disposed upon the spout base CT support surface.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: December 16, 2014
    Assignee: Eaton Corporation
    Inventors: James E. Smith, Brad Robert Leccia, Steven Z. Chen
  • Patent number: 8809711
    Abstract: Embodiments show an electrical contact position indicator. The indicator includes a mechanical indicator and an accessory actuator configured and adapted to mount in a circuit breaker housing, the accessory actuator being coupled to the mechanical indicator. The mechanical indicator is configured and operable to provide a non-electrical indication of an operational configuration of the electrical contact assembly, and actuate the accessory actuator. The accessory actuator is operable to provide an electrical indication of an operational configuration of the electrical contact assembly. Electrical contact position indicator assemblies and methods of operating the same are provided, as are other aspects.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: August 19, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Kevin R. Warne
  • Patent number: 8637782
    Abstract: A printed wiring board has a first switch contact pattern, a second switch contact pattern, and a cutting portion that cuts a plating bar formed thereon. A metal dome is arranged to be in contact with the first switch contact pattern and allows the first switch contact pattern and the second switch contact pattern to be conductive by being deformed. A first sheet attached to the printed wiring board via an adhesive has a first opening portion formed in a region where the metal dome is arranged and a second opening portion formed in the region where a cutting portion is formed. A second sheet is attached to the first sheet via the adhesive to cover the first opening portion and the second opening portion.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: January 28, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koji Ishikawa
  • Patent number: 8618897
    Abstract: The invention relates to a switching device with a switching device housing, having first guiding and supporting recesses on the connecting side and at least one first detent cam that points away from the front face with a first detent surface. A protective cover which is designed as an accessory and which consists of two lateral protective walls and a front face protective wall that connects said lateral walls is equipped with at least one first detent hook, which points towards the front face protective wall with a second detent surface and which can be connected to the first detent cam, on the protective cover end face that points towards the switching device.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: December 31, 2013
    Assignee: Eaton Electrical IP GmbH & Co. KG
    Inventor: Karsten Gerving
  • Publication number: 20130335355
    Abstract: The present disclosure provides a touch device comprising at least one first conductive axis, a plurality of second conductive units, a plurality of bridging structures and an insulating layer. The first conductive axis has a plurality of openings in which the second conductive units are located respectively There is a space existed between each of the second conductive units and the corresponding first conductive axis. Each of the majority of the bridging structures are electrically connected to every two adjacent second conductive units in two adjacent first conductive axes. The insulating layer is located between the bridging structure and the first conductive axis. The insulating layer has a plurality of holes exposing the second conductive units respectively, and the bridging structures connect to the second conductive through the holes. In addition, the disclosure also provides an electrostatic shielding method of touch device.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 19, 2013
    Inventors: Hua Ding, Silu Yu, Fanzhong Zhang
  • Publication number: 20130321304
    Abstract: A touch panel, a manufacturing method and a display device using the same are provided. The touch panel includes a substrate, a conductive layer, an insulating layer, a shielding layer and a flexible printed circuit board. The conductive layer is disposed on the substrate. The insulating layer is disposed on the conductive layer. The shielding layer is disposed on the insulating layer. The flexible printed circuit board has a ground trace electronically connected to the conductive layer. The shielding layer is electronically connected to the ground trace through at least one conductive through hole.
    Type: Application
    Filed: May 14, 2013
    Publication date: December 5, 2013
    Applicant: Innolux Corporation
    Inventor: Chung-Kai Wang
  • Publication number: 20130270079
    Abstract: The present disclosure provides a touch panel which at least comprises a sensing area, a conductive wire area, and earthing lines. The conductive wire area surrounds the sensing area and is electrically connected to the sensing area, and the conductive wire area comprises a first conductive wire area and a second conductive wire area. The earthing lines are set between the first conductive wire area and the second conductive wire area. The touch panel can efficiently shield signal crosstalk between the first conductive wire area and the second conductive wire area by setting the earthing lines between the first conductive wire area and the second conductive wire area, thereby reducing the influence of signal crosstalk on efficiency of the touch panel.
    Type: Application
    Filed: April 17, 2013
    Publication date: October 17, 2013
    Applicant: TPK Touch Solutions (Xiamen) Inc.
    Inventors: Yanjun Xie, Yau-Chen Jiang, Bin Lai, Enshi Shi
  • Patent number: 8319127
    Abstract: An electronic apparatus includes an operation member which includes an operation portion, a substrate which includes a switch detecting pattern and a ground pattern, and a sheet member which is disposed between the operation member and the substrate and provided with a metal piece for causing the switch detecting pattern to be electrically continuous to the ground pattern according to an operation to the operation portion, wherein the metal piece is in contact with the ground pattern, and the sheet member covers the metal piece with an insulating member in such a manner that at least a part of a surface of the metal piece is exposed.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: November 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Yoshida
  • Patent number: 8188396
    Abstract: A monitored SCADA Ready Field Test (FT) Switch is disclosed. The monitored switch relates to the incorporation of a monitoring switch for each switch unit in a FT switch to monitor the position of the corresponding switch unit and the FT switch, generally.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: May 29, 2012
    Assignee: General Electric Company
    Inventors: Jimmy Bou, Michael Edward Haas, Brian Sonnenberg
  • Patent number: 8119944
    Abstract: An electronic device adapted to be mounted on a circuit board is disclosed. A housing is made of an insulative material. The housing includes a first face adapted to oppose the circuit board, a second face and a third face which respectively intersect with the first face. A cover covers a part of the housing and is made of a conductive material. An earth contact member is made of a conductive material and integrally molded with the housing. The earth contact member has a first terminal extending from the first face to the second face and a second terminal disposed on the third face and being in contact with the cover. The first terminal is adapted to be soldered on an earth circuit on the circuit board.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: February 21, 2012
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Hidetake Kikuchi, Takashi Kawamura
  • Patent number: 8008589
    Abstract: An electrical switching device in a motor vehicle includes an anti-ESD device which is formed by a metallic or metal-coated element on a surface of the switching device, with which an earth connection is associated via a defined air gap.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: August 30, 2011
    Assignee: Delphi Technologies, Inc.
    Inventor: Juergen Grundmeier
  • Patent number: 7990731
    Abstract: An electronic device includes a housing defining a through hole, a circuit board fixed in the housing, including a switch and a grounding portion connecting with the ground, a fastening member received in the through hole fixed on the housing and contacting the grounding portion, passing static electricity therethrough and defining a mounting hole, and an actuating member received in the mounting hole and contacting the fastening member, and pressing the switch when actuated; wherein the fastening member and the actuating member are conductive.
    Type: Grant
    Filed: December 27, 2008
    Date of Patent: August 2, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Shi-Kun Guo, Ke-Hui Peng, Guo-Ping Yao
  • Patent number: 7826806
    Abstract: A mobile terminal is provided that includes a housing having an opening formed therein, a cover disposed in the opening of the housing, the cover including at least one light transmission opening, an input switch located beneath the opening of the housing and the at least one light transmission opening, a light emitter to illuminate the at least one light transmission opening, and a light constraining member to direct light from the light emitter towards the light transmission opening and to minimize light emitted from the light emitter from being directed peripherally of the light transmission opening.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: November 2, 2010
    Assignee: LG Electronics Inc.
    Inventor: Byung-Sung Choi
  • Patent number: 7773958
    Abstract: A key pad assembly and a mobile communication terminal having the same. The key pad assembly comprises: a key pad installed at a front surface of a cover so as to be exposed outwardly; a switching unit arranged at a rear surface of the cover for generating a signal when the key pad is pressed; a signal transmitting unit electrically connected to the switching unit below the switching unit, for transmitting a signal generated from the switching unit; and a supporting plate arranged below the signal transmitting unit and having a guiding portion for inducing the signal transmitting unit to be bent in a direction spaced from a lower surface of the cover, for supporting the signal transmitting unit towards the cover. As the key pad assembly is implemented to be slim, a spatial efficiency of the mobile communication terminal is increased.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: August 10, 2010
    Assignee: LG Electronics Inc.
    Inventor: Sang-Eun Nam
  • Patent number: 7342193
    Abstract: An electronic apparatus with an electrostatic discharging structure is disclosed. The electronic apparatus includes a key cap, a switch component, a discharging conductor, a grounding point and a circuit board. The switch component is mounted on the circuit board. The key cap is installed on the switch component. The grounding point is used to make contact with the ground of the electronic apparatus and is formed on the circuit board. The discharging conductor extends from a side of the key cap. When the key cap is pressed by a user, a part of the discharging conductor approaches or makes contact with the grounding point.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: March 11, 2008
    Assignee: ASUSTeK Computer Inc.
    Inventors: Arthur Chang, Yu-Feng Huang
  • Patent number: 7317170
    Abstract: A simple and low-cost electronic function relay is specified, for example an overload relay with a bistable printed circuit board relay module. The relay includes an engagement point for mechanical operation. The relay further includes a separate reset mechanism, which can be coupled to the printed circuit board relay module, and a switching lever, which corresponds with the engagement point, for manual resetting of the printed circuit board relay module to a switched-on position.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: January 8, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventors: Siegfried Neumann, Fritz Royer, Uwe Weiss, Christian Widmann
  • Patent number: 7187258
    Abstract: A circuit breaker includes an elongated movable contact having a contact at one end thereof for flowing a current therethrough and the other end rotatably supported with a holder, and a protection cover made of an insulating material for covering and protecting a movable contact from short circuit and discharge. The protection cover is made of only the insulating material, covers the movable contact, and has elasticity to tightly hold the movable contact.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: March 6, 2007
    Assignee: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Tomoo Yamazaki, Mitsuhiro Mitsushige, Koji Asakawa, Hideto Yamagata, Akifumi Sato
  • Patent number: 7161104
    Abstract: A method and assembly for use with a printed circuit board (PCB), the assembly comprising a relay assembly including a relay housing and a trip free reset assembly mounted within the housing and linked to other relay components mounted within the housing for manually resetting the relay after the relay is tripped and at least one pin linked to at least one of the relay components and including a distal end extending from the housing and suitable for direct connection to the PCB.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: January 9, 2007
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Dallas J. Bergh, Steven T. Haensgen, Gary Lehman
  • Patent number: 7002086
    Abstract: A switch device includes: an operating portion made of a synthetic resin and having a conductive plating layer formed thereon, the operating portion configured to be inserted into a hole formed on a housing of an apparatus; and a shielding portion made of a synthetic resin and having no conducive plating layer formed thereon, the shielding portion formed separately from the operating portion and covers a gap between the operating portion and the hole from an inner side of the housing. The shielding portion is provided to push a tact of a switch provided at a rear side of the shielding portion when the shielding portion is displaced by a pushing operation of the operating portion. The operating portion is fixed to the shielding portion in a state in which the plating layer thereof being not exposed to the rear side of the shielding portion.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: February 21, 2006
    Assignee: Funai Electric Co., Ltd.
    Inventor: Tadanari Fuji
  • Patent number: 6868259
    Abstract: A keybutton structure that is composed of the casing 18, the shielding case 10 that is provided with metal-type surface treatment, the keybutton 7 and the printed circuit board 8 that is mounted with a light emitting element, in that the light emitting element 22, such as the LED, is surrounded entirely by the rib 21 that is disposed upright on the shielding case 10. This configuration enables solving of the space problem as well as improvement in the luminous efficiency.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: March 15, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiyasu Kitamura, Kazuhiro Konishi, Taichi Tabata, Kouichi Yamamoto
  • Patent number: 6610937
    Abstract: An operating device having a static eliminator capable of effectively grounding any static electricity surge through a switch operating button to exterior frame members or to ground within an electronic apparatus, and an electronic apparatus having such an operating device, comprises a rotatable dial for selecting one operation mode from among a plurality of modes, a button disposed in a recess portion in the center of the dial for pushing a switch located in the recess portion at the lower position of the dial, a rotary conductive member disposed within the recess portion provided in the center of the dial and capable of rotating together with the dial, and a fixed conductive member held by a base member for holding the dial. The rotary conductive member and the fixed conductive member are kept in constant contact.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: August 26, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshinobu Yamaguchi
  • Patent number: 6437268
    Abstract: An improved connector comprises a circuit breaker terminal having a cold formed, countersink aperture on a top surface of the breaker terminal and an extruded raised ring on the bottom surface of the breaker terminal. The wire connector is a square-shaped element having a plurality of openings for receipt of at least one wire, the circuit breaker terminal and the wire connector shoe. In assembly of the three piece connector, the circuit breaker terminal is inserted into an opening in the wire connector. The wire connector shoe is then inserted into at least one opening in the wire connector and surrounds a portion of the circuit breaker terminal within the wire connector. The wire connector shoe has a protrusion, which is cold formed by displacing shoe material into the countersink aperture on the top surface of the circuit breaker terminal.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: August 20, 2002
    Assignee: Square D Company
    Inventors: Ronald Etscheidt, Donald Nohavec, Joni Orum, Douglas Thomas
  • Publication number: 20020100671
    Abstract: The present invention provides an improved connector on a terminal of an overload responsive circuit breaker. The connector is inexpensive, readily manufactured and installed and firmly secures a wire connector and wire connector shoe to a circuit breaker terminal, which is electrically coupled to the circuit breaker circuitry. The improved connector of this invention comprises a circuit breaker terminal having a cold formed, countersink aperture on a top surface of the breaker terminal and an extruded raised ring on the bottom surface of the breaker terminal. The wire connector is a square-shaped element having a plurality of openings for receipt of at least one wire, the circuit breaker terminal and the wire connector shoe. In assembly of the three piece connector, the circuit breaker terminal is inserted into an opening in the wire connector.
    Type: Application
    Filed: January 31, 2001
    Publication date: August 1, 2002
    Inventors: Ronald Etscheidt, Donald Nohavec, Joni Orum, Douglas Thomas
  • Patent number: 6399903
    Abstract: A multilayered structural element which is useful for forming housings for electronic devices such as cellular telephones. The multilayered structural element has sequentially attached layers: (a) thin, flexible polymeric outer film layer, (b) an electronic interface layer, the electronic interface layer comprising a thin, flexible polymeric film layer having a pattern of electrically conductive lines on at least one side thereof; (c) a rigid structural layer; (d) an electromagnetic interference shielding layer; and (e) an optional protective layer.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: June 4, 2002
    Assignee: Honeywell International Inc.
    Inventor: James F. Stevenson
  • Patent number: 6339200
    Abstract: A switch operating unit for a camera is assembled in the switch supporting frame of the front cover thereof and provided with an inner button, an outer button, and a dial for switch operation. Under the buttons and the dial, there is provided a metal supporting plate for supporting same. Under the supporting plate, there is provided a flexible printed circuit (FPC). Since the contact of the supporting plate is in contact with the ground pattern on the FPC, even when static electricity is generated with or applied to those buttons or the dial, such static electricity is directed to the ground through the supporting plate. Thus, the electronic circuit element mounted on the FPC is protected against static electricity.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: January 15, 2002
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Lei Shi, Hideaki Kume
  • Patent number: 6329891
    Abstract: A high frequency relay capable of effectively shielding a signal path, yet reducing a number of the parts forming the shield and the associated structure. The relay has a dielectric base mounting three fixed contacts arranged in a line and defined at upper ends of three contact terminals extending through the base. Two movable contact springs are utilized, each bridging the two adjacent fixed contacts for closing and opening a high frequency signal path between the two adjacent fixed contacts. Upstanding from the base is a pair of electromagnetic shield plates which define a shielded space therebetween for accommodating the three fixed contacts and the two movable contact springs. Each of the shield plates is configured to come into electrical contact with corresponding one of the movable contact springs moved in the contact opening position.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: December 11, 2001
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Tokatoshi Hayashi, Atsushi Nakahata, Takuji Yamashita, Hidetoshi Takeyama, Koji Sagawa, Tetsuya Yamada, Tomohiro Taguchi, Hisao Yabu
  • Patent number: 6323445
    Abstract: A membrane switch structure providing electrostatic discharge (ESD) protection has three layers of insulating material, including two outer layers containing on their inside opposing surfaces printed conductive circuit patterns which may be selectively brought into electrical contact with each other through contact apertures provided in an intermediate insulting layer. An ESD protection circuit is provided in close proximity to at least one of the two outer layers, e.g., by printing the pattern on a backside of one of the outer layers in the same manner that printing of the circuit pattern is carried out. The ESD protection circuit pattern replicates, at least generally, all or a portion of the layout of the conductive circuit patterns. The ESD protection circuit can be efficiently fabricated and offers effective protection of the membrane switches from ESD events that can cause device operation problems in, for example, computer keyboards.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: November 27, 2001
    Assignee: Microsoft Corporation
    Inventor: Dawson Yee
  • Patent number: 6307456
    Abstract: An electrically-insulative terminal cover is arranged on the line end of a light industrial-rated circuit breaker to allow a close-fit arrangement between a plurality of such circuit breakers within a common enclosure. The terminal cover is in the form of a top piece and a perpendicular side piece. The top piece comprises a pair of notches for receiving a pair of electrical conductors connecting with a corresponding pair of circuit breaker electrical terminals. The side piece includes a pair of elongated notches adapted for receiving sides of a pair of adjacent circuit breakers. A center side piece between the elongated notches can be press-fit within a combined slot defined by slots in sides of a pair of abutting side walls of adjacent circuit breakers. The top piece provides electric isolation to a top of the electrical terminals while the side piece provides electric isolation to a front of the electrical terminals.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: October 23, 2001
    Assignee: General Electric Company
    Inventors: Robert J. Caggiano, Michael R. Wood, Richard E. Saunders, David D. MacDonald
  • Patent number: 6307739
    Abstract: A form factor for use in the manufacture of a portable computer includes a U-shaped member having at least two distinct elements attached together. In one form factor, the U-shaped member includes two distinct elements: a unitary wall element having a first wall, a second wall, and at least one spacing element to physically separate the first and second walls; and a base element attached to one end surface of the wall element. In another form factor, the U-shaped member includes three distinct elements: a first wall element; a second wall element; and a base element attached to the first and second wall elements. The form factors may also include bosses to facilitate the attachment of computer system components such as printed circuit boards, storage units, and battery units.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: October 23, 2001
    Assignee: Micron Technology, Inc.
    Inventor: Michael V. Leman
  • Patent number: 6229103
    Abstract: An operation type electronic component which is used for a remote controller of various electronic equipment and portable electronic equipment and is equipped with a push switch driven by the rotating and push operation of an operation knob. The component can be reduced in size and grounded by a simple construction and can be grounded by merely fitting. A dome-like movable contact (23E) is put on fixed contacts (23A, 23B) disposed on a fitting substrate (22) to form a switch unit (23). An L-shaped actuator is interposed between this switch unit (23) and a driving body (21) so that the driving body (21) returns to the original state after the push operation of an operation knob (6) by the elastic operation force of the dome-like movable contact point (23E)of the switch unit (23).
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: May 8, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tamotsu Yamamoto, Shigeru Yokoji, Hiroto Inoue, Hiroshi Matsui, Keiji Kaizaki, Koji Tamano
  • Patent number: 6219038
    Abstract: A touch pad device is used to guide a pointing device on a display device of an electronic appliances or apparatus. A sealing sheet, such as a soft rubber sheet, is interposed between the housing of an electronic apparatus and the touch pad device, thus resisting the introduction of liquid and gases into the apparatus housing.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: April 17, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Keon-Young Cho
  • Patent number: 6207912
    Abstract: A portable communication device has an electronic circuit board arranged inside a housing, and a keypad, the individual keys of which are arranged, when depressed, to collapse a respective tactile dome on a domefoil interposed between the keypad and the circuit board, so as to establish electric contact with a respective contact point on the circuit board. The domefoil is formed as a non-conductive sheet providing an airtight and/or electrostatic seal between the keypad and the circuit board. The domefoil protects the circuit board from electrostatic discharge.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: March 27, 2001
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Göran Persson
  • Patent number: 6198060
    Abstract: An EL-combined sheet switch including a circuit board having a driving circuit mounted on its back surface and having a switch pattern formed on its front surface in combination with a contact sheet having a counter electrode on its back surface in such a manner that the counter electrode faces the switch pattern to construct a switch mechanism. On the front surface of the contact sheet is attached an EL sheet and a shield layer is provided between the contact sheet and the EL sheet. In the EL-combined sheet switch, as described, the electromagnetic noise from the EL sheet which might otherwise affect the operation of an electronic device is blocked by the shield layer. The shield layer is preferably connected with a ground electrode formed on the circuit board.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: March 6, 2001
    Assignee: Seiko Precision, Inc.
    Inventors: Hiroshi Yamazaki, Koji Hirose
  • Patent number: 6100606
    Abstract: A miniaturized high frequency switching device is capable of giving an optimum over-all impedance over the length of a signal path while compensating for inevitable impedance variation seen in a particular segment of the signal path. The switching device includes a contact block having fixed contacts and a movable contact. The fixed contacts and the movable contact are surrounded by an electromagnetic shield which is supported on a conductor base to be grounded therethrough for isolating the current path from a surrounding electromagnetic field. The fixed contacts are formed respectively on one ends of terminal pins provided for electrical connection to an external load circuit operating on high frequency signals. The terminal pin extends through an insulation ring fitted in the conductor base so as to be electrically insulated therefrom and form the signal path flowing a high frequency current.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: August 8, 2000
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Atsushi Nakahata, Shigeyuki Okumura, Tomohiro Taguchi
  • Patent number: 6082758
    Abstract: An air bag module and steering wheel assembly having an air bag module including a horn switch and a circuit for grounding the switch through a steering wheel in which it is assembled. The air bag module includes a base plate upon which an air bag is mountable, and a plurality of cylindrical mounting members and a membrane horn switch. The base plate is affixed to the steering wheel insert by the cylindrical mounting members which are received in apertures in the steering wheel insert. The horn switch is electrically connected to a power source and the base plate. A conical spring surrounds at least one of the mounting members and engages both the base plate and the steering wheel insert to provide a ground path between them, eliminating the need for a ground wire directly between the air bag module and the steering wheel insert.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: July 4, 2000
    Assignee: General Motors Corporation
    Inventor: Michael Allen Schenck
  • Patent number: 6084188
    Abstract: A molded case circuit breaker having separable main contacts and an operating mechanism utilized to cause the separable main contacts to open and close. A trip unit is provided to actuate the operating mechanism in desirable circumstances. The circuit breaker has external terminals which are connectable with an external load and an external power supply. A collar is used to interconnect the circuit breaker terminals with the load and power supply. The terminal collar in this case is non-symmetrical. The non-symmetrical collar provides two functions: the first function is that the path of electrical continently between adjacent collars is enlarged for higher voltage applications because of the non-symmetrical nature of each collar; secondly, the circuit breaker case has a seat therein which has the same cross-section as the non-symmetrical collar, so that the collar can only be inserted therein in one cross-sectional orientation.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: July 4, 2000
    Assignee: Eaton Corporation
    Inventors: Robert W. Mueller, Thomas A. Whitaker, Wayne C. Sumpman
  • Patent number: 5927482
    Abstract: Electrical switching apparatus for an electric distribution system in which the apparatus has an insulative cover on it and a conductive metal layer on the inside of the cover, which is connected to ground.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: July 27, 1999
    Assignee: Eaton Corporation
    Inventor: Norman Davies
  • Patent number: 5924555
    Abstract: In a panel switch movable contact body, and a panel switch using the movable contact body, the upwardly curved upper surface of a dome-shape movable contact 1 made of a thin elastic metal plate is bonded to a sheet 12 of insulating film whose lower surface is coated with an adhesive agent 12A, and the opening of the dome-shaped movable contact 1 is closed with a separator 13 which is bonded to the adhesive surface of the sheet 12. Hence, the panel switch movable contact body, and the panel using the latter is small in the number of components, and low in manufacturing cost, and can be assembled with high efficiency.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: July 20, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akira Sadamori, Koji Sako, Yuji Okamoto
  • Patent number: 5844166
    Abstract: In the present invention the cover-like part (21) of an RF shield is manufactured from a transparent material, e.g., plastic, and unplated areas that function as light conductors (22) are left in the conductive plating covering the shield. The present invention combines an RF shield and a light conductor into one structure whose manufacturing process is quite easy to control. The present invention eliminates the necessity of having separate plates that function as light conductors.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: December 1, 1998
    Assignee: Nokia Mobile Phones, Ltd.
    Inventors: Mikko Halttunen, Pekka Lonka
  • Patent number: 5722534
    Abstract: A power disconnect switch having a generally parallelepiped base with first and second electrical conductors mounted thereon. A switch piece pivots on one of the electrical conductors to connect to the other electrical conductor. The switch piece has an insulated handle, and a projection extends from the handle. The projection has a shape which allows it to fit snugly into a holder tool, and this allows an operator to open the switch without danger of electrocution. An angled insulating plate which fits next to the parallelepiped base has a side portion which insulates the switch from adjacent switches, and a bottom portion which insulates screws in the parallelepiped base from a metal panel, shelf, or box, on which the switch may be mounted.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: March 3, 1998
    Inventor: Jere Wright