Cam Operates Contact Or Microswitch Patents (Class 200/573)
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Patent number: 10325736Abstract: A surgical device comprising: (a) one or more functional elements, and (b) a selector assembly including: (i) one or more activation buttons, (ii) one or more circuit board switches, and (iii) a shuttle in communication with the circuit board switches or the one or more activation buttons to move the circuit board switches or the activation buttons between at least a first position and a second position so that the circuit board switches or the activation buttons are moveable relative to each other; wherein the one or more functional elements provide a first function when the circuit board switches or the one or more activation buttons are in the first position, and the one or more functional elements provide a second function when the circuit board switches or the one or more activation buttons are in the second position.Type: GrantFiled: July 24, 2017Date of Patent: June 18, 2019Assignee: GYRUS ACMI, INC.Inventors: Theodore Blus, Riyad Moe
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Patent number: 10000956Abstract: A hinge assembly includes first and second portions. One of the first and second portions includes first and second receptacles and the other one of the first and second portions includes first and second cylindrical members extending in opposite directions along a hinge axis and a thickened portion having a contoured outer surface disposed adjacent the cylindrical members. The second portion is moveable from: a first state wherein the first and second cylindrical members are disposed in the first and second receptacles such that the second portion is coupled to the first portion and generally free to rotate about the hinge axis through at least a predetermined degree range, and a second state in which the second portion is decoupled from the first portion responsive to the second portion being rotated beyond the predetermined degree range and the contoured outer surface interacting with a portion of the first portion.Type: GrantFiled: May 4, 2017Date of Patent: June 19, 2018Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Thomas Alan Whitaker, Jason Eric Basta, Doel Jafeth Collazo, Paul Richard Rakus
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Patent number: 8946577Abstract: In at least one embodiment, an auxiliary switch includes a rotation part and a switching lever assigned to a configuration of the auxiliary switch, the switching lever being embodied to detect a switching state of the electrical switch and transmit it to the rotation part. Further, different switching states of the auxiliary switch are set by different rotary positions of the rotation part, with the rotation part having at least two engagement points and with the switching lever assigned to a configuration engaging in the engagement point assigned to this configuration.Type: GrantFiled: June 8, 2012Date of Patent: February 3, 2015Assignee: Siemens AktiengesellschaftInventors: Günter Bauer, Michael Freimuth, Jakob Fuchs, Jürgen Renner
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Patent number: 8555919Abstract: A ball valve includes a valve housing that has a main passage defined therein and a valve assembly that includes a valve body, which is movable within the main passage between open and closed positions, and a valve stem that fixedly engages the valve body. A handle is disposed on the valve housing that is connected to the valve stem and is operable to rotate the valve body between the open and closed positions via the valve stem. A switch is disposed within the housing, which operatively engages the valve assembly and is configured to transmit a signal to an operator's station regarding the position of the valve body.Type: GrantFiled: February 23, 2011Date of Patent: October 15, 2013Assignee: Wabtec Holding Corp.Inventors: S. Clay Evatt, Gregory Stephen Childers
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Publication number: 20120312675Abstract: An auxiliary switch for an electrical switch is disclosed. In at least one embodiment, the auxiliary switch includes a rotation part and a switching lever assigned to a configuration of the auxiliary switch, the switching lever being embodied to detect a switching state of the electrical switch and transmit it to the rotation part. Further, different switching states of the auxiliary switch are set by different rotary positions of the rotation part, with the rotation part having at least two engagement points and with the switching lever assigned to a configuration engaging in the engagement point assigned to this configuration.Type: ApplicationFiled: June 8, 2012Publication date: December 13, 2012Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Günter Bauer, Michael Freimuth, Jakob Fuchs, Jürgen Renner
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Publication number: 20120292174Abstract: The present invention provides a retrofit actuator that can be fitted interchangeably to either a toggle switch or a rocker switch and which mimics both the up and down action required to operate a toggle switch and the pushing force required to operate a rocker switch, the retrofit actuator capable of being operated either directly by pressing an on/off button on the switch actuator itself or remotely by sending a signal from a remote control or other sender unit such as a passive infra red detector or a programmable central sender unit that can control one or more switch actuators from a remote location.Type: ApplicationFiled: April 12, 2012Publication date: November 22, 2012Inventors: Pat Y. Mah, Alexander Joshef Kalogroulis
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Patent number: 8294054Abstract: A draining device for air control equipment has a bottom shell, a top shell, a knob, a switch and a connecting device. The bottom and top shells are connected to each other. The top shell has two inclined recesses. The knob is mounted through the top shell and has two sliding protrusions mounted in the inclined recesses and two tabs. The switch is mounted in the bottom shell and has a button. The connecting device has a connecting tube, a flange and an end protrusion. The connecting tube is mounted through the top shell. The flange is formed around the connecting tube and is mounted across the tabs. The end protrusion abuts the button. When the knob is rotated, the sliding protrusions move along the inclined recesses to force the knob moving downward. Therefore, the end protrusion pushes the button to turn on the switch.Type: GrantFiled: October 5, 2009Date of Patent: October 23, 2012Assignee: New Widetech Industries Co., Ltd.Inventor: Ming-Tsung Chiu
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Publication number: 20120132510Abstract: An electrical switch assembly is provided having a switch cell. The switch cell comprises at least one actuator assembly for actuating a switch. The actuator assembly comprises a resilient member; an actuator comprising a slot for receiving a post therethrough to guide movement of the actuator relative to a housing for the electrical switch, a first cam to engage the resilient member, a second cam, and a protrusion; and a contact providing a surface to engage the second cam; wherein a force imparted on the protrusion causes the second cam to move the contact and actuate the electrical switch.Type: ApplicationFiled: November 16, 2011Publication date: May 31, 2012Inventor: Alexandru Salagean
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Patent number: 8178809Abstract: The present invention relates to a railroad toggle switch for a plurality of switching positions, the toggle switch comprising a housing, an operating lever supported on the housing and having a pivot axis, a switching cylinder supported on the housing and having a rotational axis, a plurality of microswitches and an engaging mechanism for engagement of the operating lever in the switching positions. The switching cylinder is here provided with a plurality of cam disks for operating the microswitches. According to the invention the pivot axis of the operating lever is located in the area of the housing top side and is different from the rotational axis of the switching cylinder, the operating lever being in engagement with the switching cylinder.Type: GrantFiled: November 10, 2009Date of Patent: May 15, 2012Assignee: Schaltbau GmbHInventors: Heinz Bauer, Andreas Bauer
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Publication number: 20110254288Abstract: The invention relates to a control device for the door leaf a transport vehicle, comprising a housing (10, 100) and, in said housing, a switch (1, 201) provided with a plunger (6, 206), a cam (115, 15) mounted so as to rotate relative to the housing, and a mobile element (102, 202) capable of a transmission movement (T) as a result of an action applied by the cam when the latter rotates (R), said mobile element also being capable, through said transmission movement (T), of acting on the plunger so as to tilt the switch from a first electric state to a second electric state, characterised in that the mobile element has a shape moulded so as to protrude from the body (100, 204) of the device.Type: ApplicationFiled: December 15, 2009Publication date: October 20, 2011Applicant: VALEO SECURITE HABITACLEInventor: Didier Gaucher
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Patent number: 7973622Abstract: An apparatus for auxiliary contact of circuit breaker is disclosed that is capable of preventing an erroneous operation of and damage to an ON/OFF switch caused by over-stroke of a linkage mounted at an auxiliary contact apparatus, and enhancing reliability despite repeated opening/closing thereof.Type: GrantFiled: August 20, 2008Date of Patent: July 5, 2011Assignee: LS Industrial Systems Co., Ltd.Inventors: Hong Ik Yang, Sang Chul Lee, Kil Young Ahn
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Publication number: 20110155555Abstract: A Medium Voltage circuit breaker which comprises a pole assembly having, for each phase, a first fixed contact and a second movable contact reciprocally couplable/uncouplable between an open and close position. The circuit breaker further comprises an actuator to actuate the opening and closing operation of said circuit breaker, and a kinematic chain operatively connecting said actuator to said movable contact. The kinematic chain comprises a sliding element operatively connected to said actuator, said sliding element having a first sliding surface operatively coupled to said movable contact and being movable between a first, open, position and a second, closed, position.Type: ApplicationFiled: December 20, 2010Publication date: June 30, 2011Applicant: ABB TECHNOLOGY AGInventors: GIANLUCA CORTINOVIS, GIORGIO MORICONI
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Publication number: 20110095019Abstract: A door opening mechanism for a domestic appliance (for example, a microwave oven), the domestic appliance including a housing, a front door, and a resilient member (e.g. spring bias), for urging the door open, wherein the door opening mechanism is adapted to be located within the housing; the door opening mechanism comprising: a retention mechanism, engageable with the door and movable between a first configuration, in which the door is retained in a closed position, and a second configuration, in which the door is non-engaged; a cam, the cam having a plurality of cam surfaces, each being adapted to move the retention mechanism out of said first configuration through camming action; and a rotary motor, for driving the cam in response to control signals. The cam suitable comprises a plurality of equally angularly spaced projections, the outer surfaces of the cam between successive projections comprising a cam surface.Type: ApplicationFiled: December 12, 2008Publication date: April 28, 2011Inventor: Daniel Davies
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Patent number: 7910844Abstract: A leaf switch may include a cam body formed with a plurality of cam parts in a multistage shape and a plurality of leaf contact pieces which are extended toward the cam body and whose tip end sides of the plurality of leaf contact pieces are respectively abutted with the plurality of cam parts, and base end sides of the plurality of leaf contact pieces are held at the same height position. Further, an ice making device may include a water supply leaf switch for controlling water supply from a water-supply part to an ice tray, and a water supply amount adjust mechanism which includes an operation member that causes a leaf contact piece to deform to adjust a timing when the water supply switch is turned on or off. Further, an ice making device may include an ice detecting lever and a lever position detecting mechanism which detects ice amount in an ice storage part by detecting a position of the ice detecting lever.Type: GrantFiled: August 30, 2007Date of Patent: March 22, 2011Assignee: Nidec Sankyo CorporationInventors: Takuya Higashitani, Hideaki Ito, Kazunori Nishikawa, Shunji Saito
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Patent number: 7804037Abstract: A push button assembly comprises a button (1) with an actuating structure (5) movably mounted within a housing (2) for operation of a switch (20). The housing (2) provides a frame (18) comprising side wall structures (16), with a flange structure (15) mounted at a top open end thereof, The axial length of the housing (2) is shorter than the horizontal length of the side wall structures (16), resulting in a short push button assembly. The button (1) is illuminable via a lamp (25) which is provided on a carrier strip (22), the switch (20) being mounted on a body (19), both of which can be removably mounted substantially within the confines of the housing (2), with respective connection terminals (23, 21) projecting outward thereof, the assembly therefore occupying minimal space behind a panel when mounted on such a panel of an amusement or gaming machine where space may be restricted.Type: GrantFiled: October 17, 2005Date of Patent: September 28, 2010Assignee: Gamesman LimitedInventor: James Cove
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Patent number: 7790995Abstract: A device and method that contains an electro-mechanical break away sensor that de-energizes power or stops the flow of electricity to a pole upon a vehicle colliding with the pole or otherwise activation of the sensor. The sensor is omni directional and operates regardless of direction of impact from the vehicle or activation and has the ability to disconnect power when the pole falls due to a shear impact such as when there is a collision or the pole falls due to tension created by wind or weight failure. The sensor may also be activated by an authorized user such as one that is performing maintenance on the pole.Type: GrantFiled: September 4, 2007Date of Patent: September 7, 2010Inventor: Karl A. Burkett
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Publication number: 20100147669Abstract: A rotary combined switch structure with multistage switch function includes a casing unit, a switch unit and a rotary unit. The casing unit has a casing, a first opening formed on a top side of the casing and a second opening formed on a bottom side of the casing. The switch unit is disposed under the casing. The rotary unit has a rotary body. The rotary body has a top portion passing through the first opening and exposed above the casing, and the rotary body has a bottom portion passing through the second opening and exposed under the casing in order to selectably turn on or turn off the switch unit.Type: ApplicationFiled: March 4, 2009Publication date: June 17, 2010Inventors: Chia-Wei Lin, Chi-Meng Phang, Chen-Hong Huang
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Publication number: 20100116636Abstract: The present invention relates to a railroad toggle switch for a plurality of switching positions, the toggle switch comprising a housing, an operating lever supported on the housing and having a pivot axis, a switching cylinder supported on the housing and having a rotational axis, a plurality of microswitches and an engaging mechanism for engagement of the operating lever in the switching positions. The switching cylinder is here provided with a plurality of cam disks for operating the microswitches. According to the invention the pivot axis of the operating lever is located in the area of the housing top side and is different from the rotational axis of the switching cylinder, the operating lever being in engagement with the switching cylinder.Type: ApplicationFiled: November 10, 2009Publication date: May 13, 2010Applicant: Schaltbau GmbHInventors: Heinz Bauer, Andreas Bauer
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Publication number: 20100089875Abstract: This invention relates to the control of a switch apparatus having two interrupters, such as a busbar disconnector and a grounding disconnector. The invention provides: a rotary control shaft arranged away from, and at right angles to, the planes of straight line motion of the movable contacts; at least one disk cam fastened to the control shaft and having two distinct internal cam grooves; and two pairs of levers hinged to each other, with one of the levers of a given pair having one end hinged at a fixed point while its other end is hinged to the other lever of the same given pair, which is itself hinged to one of the movable contacts, a spigot being located between the two ends of each of the levers that has one end hinged at a fixed point, the spigot being engaged in one of the cam grooves so as to constitute a cam follower. The mechanism of the invention enables there to be an additional actuating ratio between the disk cam or cams and each associated movable contact.Type: ApplicationFiled: October 9, 2009Publication date: April 15, 2010Applicant: AREVA T&D AGInventor: Lukas Treier
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Patent number: 7687728Abstract: A safety switch includes a cable having a first end connected to a cable translator moveable between a disengaged position and an engaged position, the cable having a second end for connection to a remote lock and power supply switch.Type: GrantFiled: July 20, 2006Date of Patent: March 30, 2010Assignee: Rockwell Automation LimitedInventors: Julian Poyner, Burt Sacherski, David Williams
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Patent number: 7623330Abstract: A ground fault circuit interrupter device is described.Type: GrantFiled: July 28, 2006Date of Patent: November 24, 2009Assignee: Copper Technologies CompanyInventors: Gunter A. Gallas, Erik J. Gouhl, Gregory G. Moreinis
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Patent number: 7619172Abstract: A micro switch is mounted onto a mounting base attached to a controller of an automatic icemaker. The micro switch generates a signal for controlling the amount of water to be filled in an ice tray. The micro switch is fixed to the mounting base by the first fixing member and the second fixing member. The first fixing member is inserted through a mounting hole formed in a case of the micro switch. The second fixing member is arranged on a surface of the mounting base on an opposite side of a surface mounted with the micro switch, and is fixed to the first fixing member.Type: GrantFiled: January 17, 2008Date of Patent: November 17, 2009Assignee: Nidec Servo CorporationInventors: Toshio Maehara, Eiji Kuroda, Yoshitaka Yokoi
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Publication number: 20090194405Abstract: A safety switch for affecting the operating state of equipment to which the safety switch is at least indirectly connected. The safety switch includes a configuration, such as a number of contacts, that is arranged to change from a first condition to a second condition depending on whether or not an actuator has been engaged with or disengaged from the safety switch. The safety switch includes an arrangement for determining information that is at least indicative of an operational property of the configuration, and for storing information that is at least indicative of the obtained information.Type: ApplicationFiled: December 16, 2008Publication date: August 6, 2009Inventors: Julian Poyner, Derek Jones, Derek Sawyer
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Patent number: 7566838Abstract: A rotary DIP switch includes a base having a receiving space and a shaft, a plurality of fixed contact terminals having fixed contact portions exposed in the receiving space, and a contact plate having a plurality of movable contact portions to contact the fixed contact portions. A rotary member is disposed above the contact plate, and includes a press plate having a periphery interconnecting radial top and bottom faces thereof, and a plurality of press members to respectively press the movable contact portions against the fixed contact portions. The periphery has an axially extending first face, and an inclined second face. A top cover covers the rotary member, and includes two wing plates each having a tongue plate with an abutment portion to abut against the second face.Type: GrantFiled: December 19, 2008Date of Patent: July 28, 2009Assignee: Excel Cell Electronic Co., Ltd.Inventor: Yung-Ming Kuo
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Patent number: 7538291Abstract: A micro switch includes a base, a common terminal, a normally open terminal, a normally close terminal, a top cover, a pressing element, a resilient piece and a cushioning pad. The cushioning pad is disposed on an inner surface of the top cover. By means of the cushioning pad, the noise generated during operation of the micro switch is minimized.Type: GrantFiled: April 2, 2008Date of Patent: May 26, 2009Assignee: Primax Electronics Ltd.Inventor: Yu-Chih Cheng
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Publication number: 20080308399Abstract: A switch (50) is adapted to be On when a contact point (52) is at a position to be in contact with a cam surface (47) and Off when the contact point (52) is at a position corresponding to a non-cam surface (48). In the vicinity of the non-cam surface (48) of the cam surface (47), a rib (49) is provided which changes a direction of the contact point (52) when reciprocation of the cam member (43) is changed. Accordingly, even when the switch (50) comes into contact with the cam member (43) moving in a different direction, the direction of the contact point (52) is changed so as to be the same. Hence, the switch (50) is prevented from being affected by a hysteresis caused by difference in directions of the contact point (52).Type: ApplicationFiled: July 7, 2005Publication date: December 18, 2008Applicant: PIONEER CORPORATIONInventors: Eiji Hoshinaka, Hitoshi Ueno, Yukinari Makisaka
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Publication number: 20080035465Abstract: A switch device, comprising: a switch base plate that includes a sliding surface on one side thereof, a sliding member that is provided with a first claw portion and a second claw portion, the sliding member being latched by the first and second claw portions, and the sliding member also being supported by the switch base plate so as to be slidable in a sliding direction; a contact member that is disposed in a position opposing a sliding surface of the sliding member, the contact member being deformed by bending by a pressing force from the sliding surface, and the contact member is pressed against the sliding surface by a restorative force from the bending deformation; an extended portion that is formed at a leading end portion of the switch base plate; and a cut-out portion that is formed at the leading end portion of the switch base plate.Type: ApplicationFiled: August 6, 2007Publication date: February 14, 2008Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventor: Tetsushi MUROMACHI
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Patent number: 7268307Abstract: Signal Actuator device, having a support structure; a bottom drive shaft, tunable in a seat of the support structure; a first torsional coupling, integral with and surrounding the bottom drive shaft; at least a first cam torsionally coupled to the first torsional coupling in a selective manner for adjusting the angular position thereof relative to the bottom drive shaft; the at least one first cam actuating an electrical device supported by the support structure; a top drive shaft, torsionally coupled to bottom drive shaft in a selectively removable member; a second torsional coupling, integral with and surrounding the top drive shaft; at least a second cam torsionally coupled to the second torsional coupling in a selective manner for adjusting the angular position thereof relative to the removable top drive shaft; and the at least one second cam actuating an electrical device supported by the support structure.Type: GrantFiled: May 31, 2005Date of Patent: September 11, 2007Assignee: Soldo S.r.l.Inventor: Giovanni Soldo
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Patent number: 7262377Abstract: A limit switch control device for an actuator is disposed at both ends of a linearly moveable mover and comprises at least: two limit switches, a circuit board, and a connecting rod assembly. The two limit switches are disposed on the circuit board, both ends of the connecting rod assembly define the effective travel length of the mover. One end of the connecting rod assembly is moved by the mover to control the other limit switch. By such arrangements, the limit switch is simplified, and with the arrangement of the connecting rod assembly, the number of the brake devices or the limit switches can be increased as desired. Further, the circuit board and the connecting rod assembly are modular designed.Type: GrantFiled: November 23, 2006Date of Patent: August 28, 2007Assignee: Hiwin Mikrosystem Corp.Inventors: Chia-Chun Wei, Yu-Jian Lin
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Patent number: 7175390Abstract: A switching apparatus having an actuating shaft, an actuator, at least one switch and a housing. A switching apparatus is in the form of at least one actuating guide which is connected with a first actuating guide portion to the actuating shaft and which with a second actuating guide portion at least partially embraces the actuating shaft at a predetermined spacing, wherein provided on the convex side of the second actuating guide portion is an actuating track for the switch or switches, insofar as at least one predetermined position the spacing between the outer peripheral edge and the actuating shaft is greater for a predetermined arcuate dimension than at other positions of the second actuating guide portion.Type: GrantFiled: December 5, 2003Date of Patent: February 13, 2007Inventor: Aloys Wobben
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Patent number: 7087849Abstract: A control device processes or agricultural sprayer. A slip member biased by a retaining member and springs to an initial neutral position produces a signal by a sensor upon initiation or cessation of angular forces from rotation of a machine driven shaft. The signal is caused by movement of the slip member from friction produced by an impeller situated within the grease filled slip member. The impeller is coupled directly or indirectly to the machine driven shaft and rotates upon rotation of the shaft. Upon initiation of angular forces on the impeller, the signal produced may cause a valve on an agricultural sprayer to open and initiate spraying therefrom. Upon cessation of angular forces on the impeller, the valve may be closed to turn off the spraying.Type: GrantFiled: April 20, 2004Date of Patent: August 8, 2006Assignee: One Pass Farm Equipment, LLCInventors: James Dennis Brown, Allen Tison
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Patent number: 7057129Abstract: The present invention relates to a multi-way synchronous switcher. The multi-way synchronous switcher comprises a contacting tongue unit and a cam, the contacting tongue unit comprises an upper contacting tongue unit, an intermediate contacting tongue unit and a lower contacting tongue unit which are mounted in sequence; the lower end of the cam has a shape of step provided with several step stages; the first slider being able to move up and down is provided between the cam and the intermediate contacting tongue unit; the lower end of the first slider is connected to an elastic mechanism which can actuate the intermediate contacting tongue unit to move up and down.Type: GrantFiled: February 18, 2005Date of Patent: June 6, 2006Assignee: Shanghai Guangwei Electric & Tools FactoryInventors: Yeping Fan, Wenxin Zhang
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Patent number: 7057122Abstract: A remote controller has a sliding switch which has more than two contacting positions linearly disposed, and a sliding lever to switch among the contacting positions. A slider engaged with the sliding lever and the slider has an angle portion. A first cam piece has a first V-shaped notch to fit the angle portion of the slider. The first cam piece corresponds to one or two of the contacting positions located in a central portion of the sliding switch. A second cam piece has a second V-shaped notch to fit the angle portion. The second cam piece corresponds to two of the contacting positions located on side portions of the sliding switch.Type: GrantFiled: April 20, 2005Date of Patent: June 6, 2006Assignee: SMK Manufacturing Inc.Inventors: Yuji Mizuno, Minh Nguyen
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Patent number: 7049531Abstract: A circuit selector assembly including an electrical conductor, an electrical contact, a first spring beam connected to the electrical contact and a second spring beam connected to the electrical contact. The second spring beam biases the electrical contact to a first position, the first spring beam being deflected when the electrical contact is in a second position, the second position being defined as when the electrical contact is contacting the electrical conductor.Type: GrantFiled: April 14, 2004Date of Patent: May 23, 2006Assignee: Pent Technologies, Inc.Inventors: Shawn J. Kondas, Daniel L. Hayes
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Patent number: 6935205Abstract: A switch actuator is provided with a rotor in a housing and a third class lever having a cam follower operatively engaged against a cam surface of the rotor. A fulcrum of the lever is provided at a location relative to the rotor, which location is adjustable relative to the rotor in response to continued rotation of the rotor after an operative end of the lever has been stopped against a switch.Type: GrantFiled: July 3, 2002Date of Patent: August 30, 2005Assignee: Illinois Tool Works, Inc.Inventor: Daniel J. Danek
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Patent number: 6670567Abstract: A rotary switch mechanism for an operation panel is designed such that the space on a printed board is ensured, the design of electronic parts on the printed board can be readily made, and the attachability of a switch is good. Drive pieces are arranged at predetermined intervals around the end of a rotary knob behind the operation panel, and a detection switch for detecting the passage and the direction of the passage of the drive pieces is disposed in or near the extent where the drive pieces move.Type: GrantFiled: August 22, 2002Date of Patent: December 30, 2003Assignee: Zexel Valeo Climate Control CorporationInventors: Akihiro Koseki, Kazuhiko Hirota, Hiroshi Misuda
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Publication number: 20030226749Abstract: A limit switch sealing anon-contact type microswitch has a stainless steel actuator lever subjected to nitriding processing which is cantilever supported on a housing upper portion by a plate spring made of polyimide. A non-contact type microswitch stored inside a housing cavity is slightly adjusted for upward and downward positions by a screw mechanism, and after that, is sealed inside the cavity by the filler such as silicon rubber and the like. A piston which transmits the movement of the actuator lever to the microswitch is supported air tight by the housing at the center of a flat conical bellows, and the limit switch including a return coil spring is highly sensitive, and is excellent in water resistance, oil resistance, abrasion resistance and durability.Type: ApplicationFiled: September 20, 2002Publication date: December 11, 2003Inventor: Yukihiro Asa
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Patent number: 6655626Abstract: A belt retractor for a vehicle safety belt includes a frame, a belt spool rotatably mounted in the frame, and a locking mechanism which is provided with a release disk and by means of which the belt spool can be blocked against rotation in the frame. The belt retractor further includes a control disk as well as a reduction gear that couples the belt spool with the control disk. A rocking lever is provided which is adapted to be pivoted by the control disk between a release position in which it does not cooperate with the release disk, and a blocking position in which it engages in the release disk, whereby the belt spool can be blocked against rotation. A switch is provided which is adapted to be actuated by the control disk when a predetermined amount of belt webbing has been drawn off the belt spool and the control disk has been turned into a predetermined position.Type: GrantFiled: November 15, 2001Date of Patent: December 2, 2003Assignee: TRW Occupant Restraint Systems GmbH & Co. KGInventor: Lloyd Snyder
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Patent number: 6646212Abstract: A switch mechanism comprising a housing in which a switch is mounted, the switch being actuable to switch between first and second conditions. A cam is mounted within the housing to rotate about a predetermined cam axis, the cam defining a cam surface against which a cam follower bears such that rotation of the cam causes displacement of the cam follower to activate the switch. An actuator shaft which may be connected to a safety rope is mounted to be axially displaceable within the housing, the actuator shaft being mechanically coupled to the cam such that axial displacement of the shaft causes the cam to rotate about its axis. The actuator shaft is positionable in an intermediate axial position in which the cam is rotatable to a predetermined rotational position such that the cam follower causes the switch to assume the first condition.Type: GrantFiled: May 1, 2002Date of Patent: November 11, 2003Assignee: EJA, Ltd.Inventor: Mehdi Mohtasham
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Patent number: 6605793Abstract: The switch includes a microswitch switching mechanism having a biassed plunger. The body of the switching mechanism is covered by a lid having a user-operated slider mounted thereon. Movement of the slider is confined to a track formed in the lid. A cam surface is provided on a part of the slider which is engageable with the plunger of the switching mechanism. The “over-centre” profile of the cam surface is such that movement of the slider in one direction causes the plunger to be depressed and then released. Inadvertent operation of the switch is avoided due to the cam profile.Type: GrantFiled: January 11, 2002Date of Patent: August 12, 2003Assignee: ITW LimitedInventors: Mark Jonathan Banfield, Barry Voss
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Patent number: 6590169Abstract: An electronic switch assembly, has at least one switch thereon, the at least one switch being capable of receiving a contact from a rotating cam, in order to control the power accessory.Type: GrantFiled: October 22, 2001Date of Patent: July 8, 2003Inventor: Richard J. Martinez
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Patent number: 6441332Abstract: A switch assembly includes both a separating wedge member, which functions to maintain two electrical contacts out of electrical communication, and a second, camming element, which can be used to squeeze the contacts together when the switch assembly is actuated. In a first embodiment, the second element is of a generally conical shape. In a second embodiment, the second element is actually constituted by two side members having ramped surfaces. The interaction of the specially shaped contacts and camming element ensures proper mating of the contact members when the switch is actuated. In one preferred form of the invention, an undulating channel is formed in a housing of the switch to pinch connecting wires and assure a positive, reliable connection with the contacts.Type: GrantFiled: February 15, 2001Date of Patent: August 27, 2002Assignee: Maytag CorporationInventors: James F. Crawford, Jeffrey L. Sears, Harold T. Wilson
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Publication number: 20020088700Abstract: The switch includes a microswitch switching mechanism having a biassed plunger. The body of the switching mechanism is covered by a lid having a user-operated slider mounted thereon. Movement of the slider is confined to a track formed in the lid. A cam surface is provided on a part of the slider which is engageable with the plunger of the switching mechanism. The “over-centre” profile of the cam surface is such that movement of the slider in one direction causes the plunger to be depressed and then released. Inadvertent operation of the switch is avoided due to the cam profile.Type: ApplicationFiled: January 11, 2002Publication date: July 11, 2002Inventors: Mark Jonathan Banfield, Barry Voss
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Patent number: 6310529Abstract: The present invention is for a bi-stable battery switch incorporated preferably for internal use into a remotely switchable storage battery, or, in the alternative, for external use with a battery. A bifurcated contact assembly incorporating dual bus bars is pulse actuated by a solenoid and cam arrangement to engage or disengage across opposing contacts. When engaging the contacts and when associated with high inductive loads, the first bus bar to advance initiates contact and assumes the arcing load, while the second bus bar to advance assumes the current load. When breaking contact and when associated with high inductive loads, the first bus bar to retreat breaks the current load and the second bus bar to retreat breaks the arcing load. Thus, the loads are shared to increase the durability and length of service of the switch.Type: GrantFiled: April 27, 2000Date of Patent: October 30, 2001Assignee: MTR, Inc.Inventors: Edwin J. Luetzow, Richard L. Luetzow
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Patent number: 6278619Abstract: The invention concerns a disconnecting appliance, such as a switch, a fuse-disconnecting switch or breaker-reversing switch, having a novel arrangement of fixed and moving contacts promoting contact surface self-cleaning and increasing contact force for the same contact force applied by the cam. Moreover, it comprises a newly designed cam for actuation the mobile contacts to optimize to the maximum the operating conditions when engaging and releasing. The appliance is characterized in that the moving contacts (35, 36) comprise two contact surfaces (38) arranged in substantially perpendicular planes, corresponding with those (27) of the fixed contacts (31, 31′ and 33, 33′), each moving contact (35, 36) moving in radial translation relative to the control shaft (23) along a direction (F) substantially perpendicular to a straight line passing through its two contact surfaces (38).Type: GrantFiled: January 10, 2000Date of Patent: August 21, 2001Assignee: Socomec S.A.Inventor: Roger Dumont
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Patent number: 6242706Abstract: A microswitch is provided with a push lever having a ball at a lower end so as to roll freely. A seesaw contact piece has one side piece to which a movable contact is attached and an opposite side piece to which the ball of the push lever is in constant contact when external force is not applied to the push lever. A fixed contact switches ON by coming into contact with the movable contact and switches OFF by separating from the movable contact. A fixed contact piece is configured to support a comer part of the seesaw contact piece.Type: GrantFiled: February 9, 2000Date of Patent: June 5, 2001Assignee: Mic Enterprise Co., Ltd.Inventor: Munechika Miyata
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Patent number: 6180898Abstract: An emergency stop switch mechanism for a robot which can take an emergency position when an external operation force is released and when a strong external operation force is applied. When the robot operation is started, a main lever La is pushed down from the OFF state with a normal external operation force. Since an elastic biasing force S2 is sufficiently larger than S1, a second ancillary lever Lc is pushed by a plunger PL and is turned downward together with a first ancillary lever Lb. A movable contact element ME of a contact mechanism section CM is moved to the ON position by the second ancillary lever Lc, so that the ON state (motion permitting state) is established. If emergency stop becomes necessary, the pressure of the main lever La is released from this state, or a specially strong force is applied to the main lever La. When the former is selected, the movable contact element ME is returned to the OFF position.Type: GrantFiled: December 21, 1998Date of Patent: January 30, 2001Assignee: Fanuc Ltd.Inventors: Akihiro Terada, Mitsuhiro Yasumura, Kenichiro Abe
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Patent number: 6180903Abstract: A tact switch comprises an insulative base having contacts partially retained therein and partially exposing to exterior, wherein the exposed portions of the contacts face upward. Two separated steps are formed in the insulative base and located beyond the exposed portions of the contacts. A conductor plate has a frame positioned on the separated steps, an integral contacting portion surrounded by the frame and connected to the frame via two spring arms. Normally, the contacting portion registers with and separates from the exposed portion of the contacts. An elastic device is positioned on the conductor plate and it is deformable by depression thereon to thus deform the spring arms of the conductor plate and move the contacting portion of the conductor plate downward to electrically connect the exposed portions of the separated contacts simultaneously.Type: GrantFiled: October 29, 1999Date of Patent: January 30, 2001Assignee: Hon Hai Precision Ind. Co., Ltd.Inventor: Chu-Mei Chen
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Patent number: 6144000Abstract: A robust switch assembly has a support structure with a hermetically sealed high temperature switch secured to it. A high temperature current conductor is within the switch. A spring is in contact with the switch and with the plunger of a plunger mechanism. A lead wire assembly extends from the opposite end of the switch.Type: GrantFiled: October 7, 1999Date of Patent: November 7, 2000Inventor: Thomas J. Webb
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Patent number: 6130393Abstract: An electrical rocker switch includes a body having at least two switch terminals, an internal switching mechanism for momentarily making or breaking an electrical connection between the terminals, an actuating knob on the body for operating the switching mechanism, a rocker supported on the body for pivotal movement between a first position depressing the actuating knob relative to the body and a second position releasing the actuating knob, and a resiliently biassed member for maintaining the rocker in the first and second positions.Type: GrantFiled: June 24, 1999Date of Patent: October 10, 2000Assignee: Defond Manufacturing Ltd.Inventor: Raymond Wai Hang Chu