Spring Biasing Means Patents (Class 200/290)
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Patent number: 12276990Abstract: A temperature adjustment device is capable of suppressing sleeve enlargement and preventing the rattling thereof with a synthetic resin housing. Flanges are formed on the temperature adjustment member. The sleeve has a groove along the circumferential direction on its outer periphery and a lateral hole opening at one end to the groove and penetrating through the wall thickness of the sleeve. A clip member has an outer fitting portion, elastically deformable and fittable to the groove and has an inward convex portion holding the flange from the distal-end side of the sleeve, by being inserted in the lateral hole. The groove wall has a groove-depth wall at the deepest portion opposite to the groove opening and a distal-proximal-end-side curved portion of the groove-depth wall connected to the distal-proximal-end side of the sleeve. The radius of curvature of the distal-end-side curved portion is larger than that of the proximal-end-side curved portion.Type: GrantFiled: April 12, 2022Date of Patent: April 15, 2025Assignee: NIPPON THERMOSTAT CO., LTD.Inventors: Tetsuya Nishimura, Masayuki Numata
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Patent number: 12165820Abstract: An electrical contactless switch that includes a housing, a moveable element and a magnetic field sensor. The moveable element is made of a ferromagnetic material and is slidably mounted in the housing. The moveable element is adapted to move relative to the housing between a resting position and an engaged position, the moveable element is elastically biased towards the resting position. The moveable element includes a plurality of magnetized legs spaced from each other and at least part of the magnetized legs is slidably guided in the housing. The magnetic field sensor is secured to the housing and positioned to face the plurality of magnetized legs. The magnetic sensor is configured to detect a magnetic field generated by the magnetized legs as the moveable element is in the engaged position. The moveable element is closer to the magnetic field sensor in the engaged position than in the resting position.Type: GrantFiled: July 26, 2022Date of Patent: December 10, 2024Assignee: Schneider Electric Industries SASInventors: Felipe Castillo Buenaventura, Indira Prakasam
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Patent number: 12020886Abstract: A contact unit for an on-load tap changer includes a connector body and a contact holder coupled to each other, wherein the connector body is configured to connect the contact holder to a contact of the on-load tap changer. The contact unit further includes a contact element coupled to the contact holder and configured to make electrical contact to a contact element of a contact device for the on-load tap changer. The contact unit further includes drive and guiding features coupled to the contact holder such that the contact element is movable driven and linearly guided in a direction away from the connector body.Type: GrantFiled: August 22, 2023Date of Patent: June 25, 2024Assignee: HITACHI ENERGY LTDInventors: Borislav Vasilev, Georgi Manev, Todor Kokev, Angel Mihaylov
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Patent number: 11824297Abstract: A connection terminal includes a body portion having a first end disposed on a power supply device and a second end opposite to the first end, two connection pieces, and a support portion supporting the two connection pieces and disposed at the second end of the body portion. An inner clamping space for clamping an electrode piece is formed between the two connection pieces. The support portion connects the two connection pieces and the body portion, an inner side surface of each of the two connection pieces comprises a contact surface for connecting with the electrode piece, and the contact surface extends along a first plane so that the contact surface is capable of being in surface contact with the electrode piece.Type: GrantFiled: January 7, 2022Date of Patent: November 21, 2023Assignee: Nanjing Chervon Industry Co., Ltd.Inventor: Qingsong Yang
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Patent number: 11610746Abstract: A compact switch mechanism operating a contactor array and having a lighted display.Type: GrantFiled: August 24, 2022Date of Patent: March 21, 2023Assignee: OPTIC CLEAR SOLUTIONS, LLCInventors: Samkol Truong, Roy Hart, Robert P. Helstern, Xavier Magdaleno
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Patent number: 11559187Abstract: In a multistage pushbutton switch device, n pushbutton switches and at least one load absorption spring are movably arranged in between a pushbutton member and a reaction force wall in the same axial line, each of the n pushbutton switches is composed of an electrical switch member and a pressing member that operates the electrical switch member, and (n?1) that is one less than n, or more pushbutton switches is arranged with an intermediate spring member, when the pushbutton member is pressed and displaced, the n electrical switch members are sequentially turned on, the load absorption spring is arranged in at least one of between the pushbutton member and the pushbutton switch that is the nearest to the pushbutton member, between pushbutton switches that are adjacent, and between the reaction force wall and the pushbutton switch that is the nearest to the reaction force wall.Type: GrantFiled: November 7, 2016Date of Patent: January 24, 2023Assignee: HOYA CORPORATIONInventor: Tetsu Hirayama
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Patent number: 11509087Abstract: An electrical connector having a barrel or hollow cylindrical sleeve into which is inserted a cylindrical interface member adapted to accept a coil spring member on one end thereof. The interface member on its other end acts upon a cylindrical sphere or ball captured with the other end of the sleeve member. The ball is movable axially and rotationally within the sleeve to make electrical and mechanical contact with an external surface which may be either movable with respect to the ball or not perpendicular to the ball. The connector is formed to direct current to pass primarily through the sleeve and to bypass the spring.Type: GrantFiled: March 12, 2021Date of Patent: November 22, 2022Assignee: Mill-Max Mfg. Corp.Inventor: Stephen Capitelli
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Patent number: 11462369Abstract: A compact switch mechanism operating a contactor array and having a lighted display.Type: GrantFiled: October 20, 2020Date of Patent: October 4, 2022Assignee: Optic Clear Solutions, LLCInventors: Samkol Truong, Roy Hart, Robert P. Helstern, Xavier Magdaleno
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Patent number: 11373819Abstract: A key structure includes a casing, a restoring member and a keycap assembly. The casing has an opening. The restoring member is disposed in the casing. The keycap assembly includes a keycap and a holder. The keycap includes a pressing portion and a central shaft. The pressing portion has a bottom surface. The central shaft connects to the bottom surface. The central shaft has a hemispherical portion adjacent to the bottom surface. The holder is inserted into the casing via the opening and contacts the restoring member. The holder includes a shaft bore. The shaft bore has an arcuate socket. The central shaft passes through the shaft bore and contacts the restoring member, and the hemispherical portion is accommodated in the arcuate socket.Type: GrantFiled: May 20, 2021Date of Patent: June 28, 2022Assignee: CHICONY ELECTRONICS CO., LTD.Inventor: Ta-Wen Chiu
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Patent number: 10692669Abstract: The present invention provides a keyboard and a key structure thereof, including: a lower cover, a fixed plate, a plurality of keys, a flexible protection cover, and an upper cover. The fixed plate is fixedly disposed on the lower cover, the keys are fixedly disposed on the fixed plate, the hollow protrusion structure of the flexible protection cover is configured to partially cover a key pedestal of the key, and a key support shaft of the key is correspondingly configured at a position of the opening of the flexible protection cover. The upper cover is disposed on the sheet-like body of the flexible protection cover and is assembled to the lower cover, and the hollow protrusion structure is located in a recess of the upper cover.Type: GrantFiled: December 12, 2018Date of Patent: June 23, 2020Assignee: PRIMAX ELECTRONICS LTD.Inventor: Tsu-Hui Yu
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Patent number: 10475603Abstract: A switch and methods of assembling a switch. The switch may include a housing; a first terminal electrically coupled to a power source; a second terminal electrically coupled to a load; a contact having a first contact end and a second contact end, the contact being operable to be in a closed position, in which the first contact end engages the first terminal and the second contact end engages the second terminal such that the contact electrically connects the first terminal to the second terminal, and an open position, in which the contact does not electrically connect the first terminal and the second terminal; and a biasing member configured to bias the contact towards the first terminal and the second terminal, the biasing member being operable to apply a first biasing force proximate the first contact end and a second biasing force proximate the second connect end.Type: GrantFiled: November 13, 2015Date of Patent: November 12, 2019Assignee: Power Products, LLCInventors: Christopher Wilkins, Christopher Paul Chambers
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Patent number: 10388471Abstract: An actuator for switching a switching unit includes a mechanical display having a window and a display surface visible through said window, where the display surface is positioned at a guiding projection that is subjected to a force from an elastic element.Type: GrantFiled: April 16, 2014Date of Patent: August 20, 2019Assignee: Siemens AktiengesellschaftInventors: Markus Greitner, Waldemar Hensch, Alexander Keintzel
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Patent number: 10128063Abstract: A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.Type: GrantFiled: January 14, 2018Date of Patent: November 13, 2018Assignees: DARFON ELECTRONICS (SUZHOU) CO., LTD., DARFON ELECTRONICS CORP.Inventors: Rui-Ming Liao, Chih-Chung Yen, Hung-Chieh Lo, Chia-Hung Liu
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Patent number: 10068726Abstract: A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.Type: GrantFiled: February 1, 2017Date of Patent: September 4, 2018Assignees: DARFON ELECTRONICS (SUZHOU) CO., LTD., DARFON ELECTRONICS CORP.Inventors: Rui-Ming Liao, Chih-Chung Yen, Hung-Chieh Lo, Chia-Hung Liu
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Patent number: 9791884Abstract: In a rotating operation body, a cam part has first cam faces for click feeling generation and second cam faces for return of the rotating operation body. The second cam faces are respectively formed continuously with the first cam faces, and an angle between each of the second cam faces and a direction in which elastic forces of engagement parts are generated is smaller than an angle of each of the first cam faces. That is, each of the second cam faces has a steeper slope than each of the first cam faces.Type: GrantFiled: March 31, 2016Date of Patent: October 17, 2017Assignee: ALPS ELECTRIC CO., LTD.Inventors: Satoru Konno, Yeonjo Choi
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Patent number: 9568088Abstract: A pin assembly for use in a planetary gear, including a pin defining a blind bore therein, the blind bore extending axially from an opening and terminating with an end face, and an annular rib depending inwardly from an inner surface of the blind bore adjacent the opening. A plug includes a stopper portion and a shaft extending therefrom, the stopper portion including a circular base defining an outer perimeter. The outer perimeter of the stopper portion engages the annular rib, thereby maintaining the plug in the blind bore.Type: GrantFiled: May 1, 2013Date of Patent: February 14, 2017Assignee: Koyo Bearings North America LLCInventors: Giovanni DiMatteo, Marc T. Dickison
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Publication number: 20150096874Abstract: This switching device (10) comprises at least one pair of fixed contacts (18) and, for the or each pair of fixed contacts (18), a movable contact (20) that is movable between a closed position and an open position; and a contact holder (26) capable of holding in place the or each movable contact (20). The contact holder (26) is movable along a vertical direction (Z) between a first position corresponding to the closed position of the or each movable contact (20) and a second position corresponding to the open position of the or each movable contact (20). The device (10) also includes a plate (44) capable of applying a force on the movable contact holder (26) so as to move it between its first and second positions. The plate (44) is movable relative to the movable contact holder (26).Type: ApplicationFiled: September 24, 2014Publication date: April 9, 2015Applicant: Schneider Electric Industries SASInventor: Gregory DEDINA
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Patent number: 8993909Abstract: A button structure is provided and includes a support bracket and a button. The support bracket has two opposite edges, a first concave portion, a second concave portion, and a position limiting protruding point. The first and second concave portions are respectively located at the two opposite edges, and the position limiting protruding point protrudes from the second concave portion. The button is located on the support bracket and includes a body portion, two neck portions and two stop portions. The two neck portions are located on two opposite ends of the body portion, and are respectively coupled to the first and second concave portions. The neck portion coupled to the second concave portion is positioned by the position limiting protruding point. The two stop portions are respectively connected to a side of the two neck portions facing away from the body portion.Type: GrantFiled: March 4, 2013Date of Patent: March 31, 2015Assignees: Inventec (Pudong) Technology Corporation, Inventec CorporationInventors: Yuan-Jui Chang, Cheng-Hsin Chen, Shih-Jung Huang, Yao-Yu Lai
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Publication number: 20140346019Abstract: An inner wall for partitioning a storage chamber is disposed in a case. A switching member operating a movable contact inside the storage chamber is positioned inside a penetrating portion formed between an inner recess formed on an inner wall and a first cutout portion formed in an inner clamping piece of a lid body. The switching member is formed integrally with a flange portion, and the flange portion closes the penetrating portion. As a result, dust, dirt and moistures are unlikely to enter the storage chamber through the penetrating portion.Type: ApplicationFiled: April 15, 2014Publication date: November 27, 2014Applicant: ALPS ELECTRIC CO., LTD.Inventors: Makoto Sasaki, Tomoaki Tsuchiya
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Publication number: 20140174897Abstract: An electronic device includes a button and a front panel having a button receiving hole to partly receive the button. A frame is secured to an inner side of the front panel, and includes a support portion spaced apart from the inner side of the front panel. A circuit board is secured to the support portion, and includes a switch under the button. An elastic member is located between the button and the support portion of the frame, and is used to apply a pushing force to the button.Type: ApplicationFiled: August 22, 2013Publication date: June 26, 2014Applicants: HON HAI PRECISION INDUSTRY CO., LTD., Fu Tai Hua Industry (Shenzhen) Co., Ltd.Inventor: Yan-Bang CAO
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Patent number: 8748760Abstract: A linear actuating earthing switch configuration that moves movable contacts using linear motion in a single axis. The earthing switch includes a frame with a rail on a slide wall. A sliding carriage slides on the rail in a linear direction, the sliding carriage including a plurality of movable contacts. A spring surrounding a linear shaft provides a linear expansion force between the frame and the sliding carriage when the earthing switch is in an open position.Type: GrantFiled: June 19, 2012Date of Patent: June 10, 2014Assignee: Rockwell Automation Technologies, Inc.Inventor: David Miller
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Publication number: 20140097069Abstract: A switching device including a breaker electrically connectable to an electrical conductor, and an at least partially electrically conductive housing to which the breaker is mounted, the housing having an outer surface. The breaker includes an electrically conductive first contact and an electrically conductive second contact, the second contact being movable and in relation to the first contact and in relation to the housing, and when the first and second contacts are in contact the breaker is in a closed position, and when the first and second contacts are separated the breaker is in an open position. The switching device is arranged to provide a current path between the breaker and the electrical conductor, and the housing houses a guiding member for operating the second contact, the guiding member being movable in relation to the housing, wherein the guiding member includes a biasing assembly.Type: ApplicationFiled: December 16, 2013Publication date: April 10, 2014Inventors: Thor Endre, Tom-Rune Bjortuft, Paal Kristian Skryten, Havard Hadland, John-Anders Tveten, Stanley Lohne
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Publication number: 20130242450Abstract: An electrical switching apparatus, such as a subminiature circuit breaker, includes a housing assembly, separable contacts, an operating mechanism having an actuator device and a latching assembly, a first trip device for tripping open the separable contacts in response to an overcurrent condition, and a second trip device for tripping open the separable contacts in response to an arc fault, a ground fault or a remotely transmitted signal. The subminiature circuit breaker includes a reset solenoid and a trip solenoid. The resent solenoid is coupled to the actuator device, and includes a coil operable to electrically reset the separable contacts. The trip solenoid is coupled to the latching assembly, and includes a coil operable to move the catch lever, thereby electrically tripping open the separable contacts.Type: ApplicationFiled: March 16, 2012Publication date: September 19, 2013Inventors: Patrick Wellington Mills, James Michael Mccormick, Richard George Benshoff, Steven Christopher Schmalz
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Patent number: 8519285Abstract: Provided is a one body-type power transfer switch, in which a disconnecting portion is integrally formed to reduce errors arisen due to accumulated assembly tolerance and simplify manufacturing processes, thereby improving operators' convenience. The one body-type power transfer switch includes a normal power terminal or an emergency power terminal, a module including a load terminal formed at a lower portion of a side of the module so as to be spaced apart from the normal power terminal or the emergency power terminal, wherein the module is formed using an injection molding method, and side walls are integrally formed to have insulating power.Type: GrantFiled: May 11, 2010Date of Patent: August 27, 2013Assignee: Vitzrotech Co., LtdInventors: No-Chun Park, Choong-Hyun Lee
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Patent number: 8476543Abstract: An electromechanical switch includes a contact assembly and a linkage assembly.Type: GrantFiled: May 6, 2011Date of Patent: July 2, 2013Assignee: Staco Systems, Inc.Inventors: Roy Lynn Hart, Kevin Mikio Takeuchi
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Publication number: 20130026014Abstract: A switch of a device having a longitudinal axis, and comprising a switching element parallel to the longitudinal axis of the device, a hollow body defining an interior cavity in which the switching element is movably disposed to define a switch-making position at a first longitudinal position and a switch-breaking position at a second longitudinal position, a biasing element imparting a variable longitudinal bias to the switching element to place the switching element in one of the switch-making position and the switch-breaking position until an external force imparted to the switching element exceeds the longitudinal bias causing the switching element to move to the other of the switch-making position and the switch-breaking position, and an electrically-conductive contact coupled to the switching element and defining a switch-making state when the switching element is in the switch-making position and a switch-breaking state when the switching element is in the switch-breaking position.Type: ApplicationFiled: August 9, 2012Publication date: January 31, 2013Inventor: Kevin W. Smith
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Patent number: 8227716Abstract: At least one embodiment of the invention relates to an actuator including a mechanical display, wherein the actuator is provided for switching a switch unit, and the mechanical display includes a window and a display surface visible through the window. At least one embodiment of the invention is based on the insight that prior mechanical displays require a great deal of space within the command device, and are also prone to failure. The problem of space-saving integration is solved by a display surface formed on the spring bar mounted on the actuation part, and the display surface, together with at least a part of the spring bar, is intended to make a partial rotary motion about a rotary axis during the actuation motion. In addition to the space-saving integration, a greater displacement of the display surface is also thus achieved. At least one embodiment of the invention further relates to an electromechanical operating device having a switch unit that can be switched by such an actuator.Type: GrantFiled: September 1, 2008Date of Patent: July 24, 2012Assignee: Siemens AktiengesellschaftInventors: Johann Demleitner, Anja Voigt, Rudolf Zimmermann
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Patent number: 8193461Abstract: The invention relates to an electrical switch (10), particularly of microswitch design, comprising at least one pair of switching contacts (42, 60), which can be moved, relative to one another, between an in-contact position and an out-of-contact position, for the purpose of making and breaking an electrical path leading via the two switching contacts (42, 60), and comprising spring means (40), which bias at least one of the two switching contacts in the direction of one of the two relative positions, the spring means (40) comprising, according to a preferred design, a helical spring (40), which is made of an electrically conductive material, is loaded substantially in the direction of its spring axis, and is located in the electrical path in series with the switching contact pair (42, 60).Type: GrantFiled: August 6, 2009Date of Patent: June 5, 2012Assignee: emz-Hanuer GmbH & Co. KGaAInventor: Georg Spiessl
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Publication number: 20120048694Abstract: This invention provides a switch in which the switch components are separately arranged at the portion where the switch components tend to be arranged in a concentrated manner in the housing without being collectively arranged in one region in the housing to achieve miniaturization and slimming, and in which the welding avoiding performance at the contact is enhanced to extend the lifespan, and an electronic device.Type: ApplicationFiled: July 28, 2011Publication date: March 1, 2012Applicant: OMRON CORPORATIONInventors: Yasuhiro Kiyono, Toshihiro Naruo
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Publication number: 20120006662Abstract: The invention relates to an electrical switch, in particular for an electric tool with an electric motor, such as for an electric drill, a hammer drill, an electric screwdriver or the like, with an actuating mechanism which can be adjusted between an initial position and a final position. The switch has a signaling device, which is operatively connected to the actuating mechanism, for generating a signal associated with the adjustment path of the actuating mechanism. Furthermore, the switch has a contact system, the actuating mechanism having a switching effect on the contact system in one position. The contact system is configured as a spring-action contact system.Type: ApplicationFiled: July 19, 2011Publication date: January 12, 2012Applicant: Marquardt GmbHInventors: Gerhard NIKLEWSKI, Alfons Steidle, Daniel Hafen
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Publication number: 20120000754Abstract: A switch has a housing, a contact mechanism having a movable contact piece disposed in the housing, an operating element that operates the movable contact piece, a spring member of the contact mechanism that operates the movable contact piece to open and close a contact, and a regulating mechanism that suppresses vibration of the spring member arranged at a position contacting the spring member.Type: ApplicationFiled: June 30, 2011Publication date: January 5, 2012Applicant: OMRON CORPORATIONInventors: Abe Takayuki, Kenichi Ando, Shigenobu Kishi, Yuya Kudo
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Publication number: 20110290623Abstract: An electromechanical switch includes a contact assembly and a linkage assembly.Type: ApplicationFiled: May 6, 2011Publication date: December 1, 2011Inventors: Roy Lynn Hart, Kevin Mikio Takeuchi
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Publication number: 20110220475Abstract: A miniature circuit breaker has a housing formed of a housing base of insulating material and a pot-like housing cover, which is or can be positioned onto the housing base. Two elongate and flat contact arms are partially embedded in the housing base parallel with respect to one another in terms of their longitudinal direction. A fixed contact is arranged at an inner end of a first one of the contact arms. A bimetallic snap-action disk with a free end, forming or bearing a moving contact, is fitted at an inner end of the second contact arm at a fastening point. The fastening point, the moving contact and the fixed contact are in this case on an axis which is parallel to the longitudinal direction of the contact arms.Type: ApplicationFiled: March 29, 2011Publication date: September 15, 2011Applicant: ELLENBERGER & POENSGEN GMBHInventor: WOLFGANG ULLERMANN
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Publication number: 20100230269Abstract: A diaphragm-actuated pressure differential switch assembly includes a blade spring for switching an electrical circuit. The blade spring comprises a proximal end portion configured for electrically conductive attachment to an electrical terminal, a plurality of flexible tension arms extending from the proximal end portion, a pressure contact region configured to accept transmission of a physical force to bend at least one of the plurality of flexible tension arms, a distal end portion integral with the flexible tension arms, the distal end portion including an electrical contact, and a compression spring integral with the distal end portion extending generally proximally from the distal end portion, the compression spring including a first leg and a second leg. Methods of constructing and using the diaphragm-actuated pressure differential switch assembly and the blade spring are also disclosed.Type: ApplicationFiled: January 11, 2008Publication date: September 16, 2010Inventor: Craig R. Wildman
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Publication number: 20100224467Abstract: Disclosed is an electrical circuit making and breaking switch including a housing and a first electrical contact located in the housing. A block mechanism is located in the housing and includes a second electrical contact and a stopper disposed in mechanical communication with the second electrical contact. The stopper is positionable in the block mechanism, wherein a change in the position in the stopper results in a change in a contact position of the second electrical contact relative to the block mechanism. Further disclosed is a lateral block mechanism for an electrical circuit making and breaking switch. The lateral block mechanism includes two carrier assemblies and a connecting piece located between the two carrier assembles and secured thereto. An electrical contact is located at at least one of the two carrier assemblies.Type: ApplicationFiled: March 3, 2009Publication date: September 9, 2010Applicant: General Electric CompanyInventors: Avijit Saha, Kalpana Pasupuleti, Kalyana Sundaram G, Subramanion Nagarajan
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Publication number: 20100219054Abstract: At least one embodiment of the invention relates to an actuator including a mechanical display, wherein the actuator is provided for switching a switch unit, and the mechanical display includes a window and a display surface visible through the window. At least one embodiment of the invention is based on the insight that prior mechanical displays require a great deal of space within the command device, and are also prone to failure. The problem of space-saving integration is solved by a display surface formed on the spring bar mounted on the actuation part, and the display surface, together with at least a part of the spring bar, is intended to make a partial rotary motion about a rotary axis during the actuation motion. In addition to the space-saving integration, a greater displacement of the display surface is also thus achieved. At least one embodiment of the invention further relates to an electromechanical operating device having a switch unit that can be switched by such an actuator.Type: ApplicationFiled: September 1, 2008Publication date: September 2, 2010Inventors: Johann Demleitner, Anja Voight, Rudolf Zimmermann
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Publication number: 20100108484Abstract: The invention relates to a contact system (2) comprising a contact bridge (15) that can be pivoted about an articulated axis (16) and is provided with a moving contact (11b, 12b) on the respective opposing ends (13, 14) thereof, each moving contact forming a contact point (K1, K2) with a fixed contact (11a, 11b) associated therewith. The articulated axis (16) is arranged in such a way that it can be displaced in the opening direction (19) of the contact points (K1, K2) along a guide (17) such that only a first contact point (K1) opens during normal operation, while both contact points (K1, K2) open in the event of an overcurrent and/or short circuit.Type: ApplicationFiled: June 14, 2006Publication date: May 6, 2010Inventor: Michael Soukup
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Publication number: 20100101922Abstract: Disclosed is a micro switch having a high capability of cutting off a direct current. In the micro switch including a stationary contact, a movable contact having a closed position where it contacts the stationary contact or an open position where it is separated from the stationary contact, a movable contact rod for supporting the movable contact, a plunger for pressurizing the movable contact rod upon being pressed, and a leaf spring for supplying a driving force to the movable contact rod to convert a position of the contacts being contacted or separated, a permanent magnet is installed at a position adjacent to the movable to contact and the stationary contact, so as to extend an arc generated between the movable contact and the stationary contact upon separating the movable contact from the stationary contact, whereby the arc can be fast extinguished.Type: ApplicationFiled: October 19, 2009Publication date: April 29, 2010Applicant: LS INDUSTRIAL SYSTEMS CO., LTD.Inventors: Kil Young AHN, Sang Chul LEE, Sub BAE
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Publication number: 20100032270Abstract: The invention relates to an electrical switch (10), particularly of microswitch design, comprising at least one pair of switching contacts (42, 60), which can be moved, relative to one another, between an in-contact position and an out-of-contact position, for the purpose of making and breaking an electrical path leading via the two switching contacts (42, 60), and comprising spring means (40), which bias at least one of the two switching contacts in the direction of one of the two relative positions, the spring means (40) comprising, according to a preferred design, a helical spring (40), which is made of an electrically conductive material, is loaded substantially in the direction of its spring axis, and is located in the electrical path in series with the switching contact pair (42, 60).Type: ApplicationFiled: August 6, 2009Publication date: February 11, 2010Applicant: EMZ-HANAUER GMBH & CO. KGAAInventor: Georg Spiessl
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Publication number: 20090272637Abstract: The invention relates to an electrical switch, in particular in the form of a microswitch and/or snap-action switch, having a housing which comprises a base and a cover. The switch has a contact system, which comprises a movable switching contact and at least one stationary contact. Furthermore, the switch has a moving operating member for switching of the contact system. The cover is mounted on the base such that it can move, and the operating member is formed by the cover.Type: ApplicationFiled: April 29, 2009Publication date: November 5, 2009Applicant: Marquardt GmbHInventors: Immanuel Aichele, Thomas Kugler, Heinrich Muller
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Publication number: 20090127083Abstract: A switching shaft unit for an electrical contact system for use in a low-voltage breaker. The switching shaft unit includes a rotary contact moveably disposed, with play, in a switching shaft or a shifting shaft segment, and having a pair of bearing pins. The switching shaft unit further includes at least one contact piece configured to make switchable contact with at least one fixed contact, and at least one pair of force springs. Each force spring is supported by an associated respective support disposed in an interior of the switching shaft or the switching shaft segment, and an associated respective bearing pin, so that, upon an opening movement of the rotary contact, a connection line defined through the associated bearing pin and the associated support of at least one of the force springs is displaced over a breakover point plane so that the rotary contact remains in an open position.Type: ApplicationFiled: March 1, 2007Publication date: May 21, 2009Applicant: Moeller GmbHInventor: Kurt Haendler
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Publication number: 20090008230Abstract: A switch includes a base, a support terminal assembled in the base, a movable contact piece made of a belt-like electroconductive material bent into a substantial J-shape in section, a plunger vertically movably accommodated in an internal space, and a coil spring turnably supported by the plunger. The movable contact piece includes a movable contact provided in one end portion thereof An intermediate portion of the movable contact piece is turnably supported by a turning support portion of the support terminal. The internal space is formed by fitting a housing in the base. The plunger is slid while vertically moved press-contact one end portion of the coil spring against the other end edge portion of the movable contact piece such that the movable contact piece is reversed to bring the movable contact into contact with a fixed contact or to separate the movable contact from the fixed contact.Type: ApplicationFiled: June 30, 2008Publication date: January 8, 2009Inventors: Yasuhiro Kiyono, Toshihiro Naruo
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Publication number: 20080237010Abstract: An electrical device is disclosed for use in a wall box having a series of buttons that can either be rocker buttons or push buttons. These buttons can be supported by springboards formed integral with a support board. The springboards are for biasing the series of buttons. Much of the device is housed within a housing formed at a first end by a body and a second end by a strap coupled to the housing. The strap extends beyond the body, wherein this strap can be used to dissipate heat from the device. Inside of the housing can be at least one circuit board which has switches, which can be used to receive instructions from a plurality of buttons. In one embodiment, a plurality of light pipes are adapted so that they are housed at least partially inside of these buttons. At least one portion of the light pipe can be formed as a shaft and adapted to extend out from this housing and down to a light emitter disposed on the circuit board.Type: ApplicationFiled: March 30, 2007Publication date: October 2, 2008Applicant: LEVITON MANUFACTURING COMPANY, INC.Inventors: Parimal Patel, Alfred J. Lombardi, Danilo F. Estanislao
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Publication number: 20080217146Abstract: Angled spring contacts and switches made with contactors containing angled spring contacts are disclosed. The housing for the angled spring contacts has a generally cylindrical shape. The contacts are contained within the housing with their ends extending from the housing on either side. The contacts are formed by making bullet-shaped internal contacts that are joined by a spring. The spring is mounted to the two contacts to urge the two contacts away from each other at an angle to a longitudinal axis of the housing. This angle forces contact between each contact and the housing in at least two places, thus creating redundant paths between the contacts. Switches, such as plunger switches having a normal or OFF position, and an actuated or ON position, may be made with one or more angled spring contacts. The contacts have separate surfaces for electrical conduction and for arcing.Type: ApplicationFiled: March 2, 2007Publication date: September 11, 2008Applicant: Cherry Corp.Inventors: Kenneth A. Albrecht, Richard W. Fitzgerald
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Patent number: 7256362Abstract: A mechanical limiter switch for use in a medical or surgical device has a substantially cylindrically shaped housing with a perimeter and an opening in an axial direction. The housing has a pattern along the perimeter. A spring is mounted in the opening along the axial direction, and is pre-stressed for movement in a radial direction and pre-stressed for movement in the axial direction. The spring has a radial member protruding through the pattern of the housing. A plunger is mounted in the opening along the axial direction, abutting the spring for urging the spring in the axial direction and for moving the member in the pattern along the perimeter. After a pre-determined number of activations of the plunger in the axial direction, the member will come to a terminating position and will either contact a pin to establish electrical continuity or at the terminating position break electrical continuity.Type: GrantFiled: January 21, 2005Date of Patent: August 14, 2007Assignee: Medconx, Inc.Inventors: Harold B. Kent, James J. Levante, Aaron T. Fine, Joseph R. Layton
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Patent number: 6894238Abstract: A contractor (1) having at least two spaced-apart fixed contacts (2, 3) and an at least sectionwise electrically conductive, movable contact bridge (9) having at least two contact points (8) which are associated with the fixed contacts (2, 3). The contact bridge is adapted to be moved to a switched position by a switching force (B) and to a rest position by an opening force (V). The opening force (V) is produced by a pretensioning device (13). A particularly advantageous distribution of the opening force to the two contact points and a reliable switching operation is achieved in that one contact (2) is arranged between the other contact (3) and a point where the opening force (V) acts on the contact bridge (9).Type: GrantFiled: August 13, 2002Date of Patent: May 17, 2005Assignee: Schaltbau GmbHInventor: Robert Kralik
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Patent number: 6846996Abstract: A mechanical limiter switch for use in a medical or surgical device has a substantially cylindrically shaped housing with a perimeter and an opening in an axial direction. The housing has a pattern along the perimeter. A spring is mounted in the opening along the axial direction, and is pre-stressed for movement in a radial direction and pre-stressed for movement in the axial direction. The spring has a radial member protruding through the pattern of the housing. A plunger is mounted in the opening along the axial direction, abutting the spring for urging the spring in the axial direction and for moving the member in the pattern along the perimeter. After a pre-determined number of activations of the plunger in the axial direction, the member will come to a terminating position and will either contact a pin to establish electrical continuity or at the terminating position break electrical continuity.Type: GrantFiled: December 17, 2003Date of Patent: January 25, 2005Assignee: Medconx, Inc.Inventors: Harold B. Kent, James J. Levante, Aaron T. Fine, Joseph R. Layton
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Patent number: 6831237Abstract: An apparatus is provided for activating switches in a leading edge flap drive actuator. The apparatus comprises a mount plate having at least a first side, a second side, and an outer peripheral surface, an actuator arm rotationally coupled to the mount plate and rotationally moveable between at least an activate position and a deactivate position, and a spring arm coupled to the mount plate and extending away from the mount plate outer perpheral surface, the spring arm configured to supply a force that biases the actuator arm toward the deactivate position at least when the actuator arm is in the activate position.Type: GrantFiled: November 25, 2003Date of Patent: December 14, 2004Assignee: Honeywell International Inc.Inventors: Roy F. Kruegel, David E. Boyer, Clark D. Barrand, Ross F. Meyer, Jungsuk J. Ryu, James Delaloye
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Patent number: 6570112Abstract: A push button assembly (30) includes a spring member (32) and a button (34). The spring member is secured to a computer bezel (10), and includes a rod (36), a pair of U-shaped crooks (38, 40), and a deformable arm (42) extending from one of the crooks. The deformable arm includes a connecting portion (44), a receiving portion (48) and a neck (50). The button is movably received in an aperture (16) of the bezel. The button defines a pair of grooves (54) which movably accommodate the receiving portion, so that the button can slide freely along the receiving portion. Thus the button can move freely in the aperture of the bezel.Type: GrantFiled: December 28, 2000Date of Patent: May 27, 2003Assignee: Hon Hai Precision Ind. Co., Ltd.Inventor: Wan Cheng Lin
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Patent number: 6479773Abstract: Electrical contact having an impervious connection, adapted to be housed in a guiding shaft open at its two ends, the contact comprising a terminal, a member and a deformable conductor. A movable contact head is connected to the terminal for connecting the member by way of the deformable conductor. A retaining element is fixed to the deformable conductor, a helical spring surrounding the deformable conductor and being supported at a first end on the contact head and at a second end on the retaining element. The contact head is biased by the helical spring working in compression. At least one stationary tubular gasket surrounds the terminal, at least partially, so as to encircle the member.Type: GrantFiled: June 21, 2001Date of Patent: November 12, 2002Assignee: Societe d'Exploitation des Procedes Marechal (SEPM), Societe AnonymeInventor: Didier Bienvenu