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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
21	Force switch	EP10007579.5	2007-05-21	EP2263561B1	2018-07-04	Smith, Kevin W.
A mechanical force switch to be disposed along a longitudinal device axis of a medical device includes an electrically conductive switching piston to form a first electrical contact of the switch, a hollow body, an end stop, a bias device, and an electrically conductive second contact of the switch electrically insulated from the piston. The piston is movably disposed in the body hollow along the axis to define different switch-making and -breaking position. The piston is also movably disposed in a cavity of the stop and the stop is disposed in the body. The stop can be a smooth or threaded puck. The bias device surrounds the piston and imparts bias against it to retain it in one of the two positions until an external axis force overcomes the bias, at which time the switch indicates a state changeover. The switch can be normally open or closed.
22	MOBILE PHONE KEYPAD	EP10819828.4	2010-06-25	EP2472543A1	2012-07-04	CHEN, Wei
This invention provides a key board of mobile phone applied in key circuit of mobile phone, comprises a PCB circuit board, characterized in that a first electrode, a second electrode and a third electrode are set in the PCB circuit board, the second electrode is set around the first electrode in circular form, tooth profile structures set in the extension of the second electrode are matched with the third electrode, the third electrode is connected with the first electrode, the setting can be applied to various types of keys. The key board of the mobile phone provided in this invention can not only be applied to the dome keys, but also the carbon granule keys. If customers need different designs of keys, we just need to deign new keys, and no need to design a new main board, which greatly saves development time and lowers the cost.
23	LOW-SILVER, LOW-PROFILE ELECTRICAL CONTACT APPARATUS AND ASSEMBLY	US15610725	2017-06-01	US20180350530A1	2018-12-06	Hai Chen; Mario Munoz; Jesus Hernandez
An electrical contact apparatus having low silver content and defined thickness and length geometry. The electrical contact apparatus has a contact body made of a silver-containing alloy having SC≤60 wt. %, and having L/T≥5.4, wherein L is a longest contact length dimension of the contact body, T is a maximum contact thickness dimension of the contact body, SC is the silver content in wt. %, and L/T is a contact dimension ratio. Electrical contact assemblies, circuit breaker electrical contact subassemblies, and methods of operating a circuit breaker electrical contact subassembly are disclosed, as are other aspects.
24	POWER METER WITH AUTOMATIC CONFIGURATION	US15854681	2017-12-26	US20180136258A1	2018-05-17	Martin COOK; Michael BITSCH
A power monitoring system includes a plurality of current sensors suitable to sense respective changing electrical current within a respective conductor to a respective load and a conductor sensing a respective voltage potential provided to the respective load. A power monitors determines a type of circuit based upon a signal from at least one of the current sensors and a signal from the conductor, wherein the type of circuit includes at least one of a single phase circuit, a two phase circuit, and a three phase circuit. The power meter configures a set of registers corresponding to the determined type of circuit in a manner such that the configuring is different based upon each of the single phase circuit, two phase circuit, and three phase circuit suitable to provide data corresponding to the determined type of circuit.
25	Method for sensing welded contacts on a switching device	US14266198	2014-04-30	US09897656B2	2018-02-20	Jeffrey P Lothamer; Daniel L Kelly
A method for sensing a welded relay contact when breaking both sides of a power line on a HVAC device including the steps: applying a first signal to one of a pair of switching devices; electronically sensing a second signal, with a sensing device, whether the other of said two switching devices is welded closed; and sending a third signal from the sensing device indicative of whether the other of said two switching devices is welded closed.
26	POWER METER WITH AUTOMATIC CONFIGURATION	US15600533	2017-05-19	US20170254836A1	2017-09-07	Martin COOK; Michael BITSCH
A power monitoring system includes a plurality of current sensors suitable to sense respective changing electrical current within a respective conductor to a respective load and a conductor sensing a respective voltage potential provided to the respective load. A power monitors determines a type of circuit based upon a signal from at least one of the current sensors and a signal from the conductor, wherein the type of circuit includes at least one of a single phase circuit, a two phase circuit, and a three phase circuit. The power meter configures a set of registers corresponding to the determined type of circuit in a manner such that the configuring is different based upon each of the single phase circuit, two phase circuit, and three phase circuit suitable to provide data corresponding to the determined type of circuit.
27	Key board of mobile phone	US13393957	2010-06-25	US09530589B2	2016-12-27	Wei Chen
A key board of mobile phone applied in key circuit of mobile phone is provided. A first electrode, a second electrode and a third electrode are disposed on a printed circuit board (PCB), the second electrode is disposed around the first electrode in circular form, tooth profile structures disposed matched with the third electrode are extended from an outer side of the second electrode, the third electrode is connected with the first electrode, the setting can be applied to various types of keys. The key board of the mobile phone can not only be applied to the dome keys, but also the carbon granule keys. If customers need different designs of keys, the new keys are needed to be redesign, and a new main board is not necessary to design, which greatly saves development time and lowers the cost.
28	KEY ASSEMBLY AND ELECTRONIC DEVICE	US14290993	2014-05-30	US20150348724A1	2015-12-03	Han-Wen Yeh; I-Cheng Chuang
A key assembly and electronic device is provided. The key assembly is disposed at a housing of the electronic device. The key assembly includes a circuit board, a shaft, a limiting portion, a contact element and an elastic element. The circuit board disposed in the housing has a first contact and a second contact. The shaft penetrates through the housing and the circuit board and having a first end and a second end. The limiting portion is located at the second end of the shaft. The contact element is located between the housing and the circuit board. The elastic element is coupled between the shaft and the circuit board. When the shaft drives the contact element to move toward the circuit board for the contact element to contact the second contact, the second contact is electrically connected to the first contact through the contact element to generate an electrical signal.
29	DUST AND WATERPROOF SWITCH	US14348984	2013-02-08	US20140367234A1	2014-12-18	Bernd Ebert
A dustproof and waterproof switch, in particular for a seat belt buckle of restraint systems of motor vehicles for indicating that the latch plate has been inserted into the seat belt buckle and properly locked, includes two contact plates, composed of a fixed contact plate and a contact spring plate, wherein the contacting regions of the contact plates are disposed in a housing-interior of the switch housing which is protected from foreign matter, and the switch can be activated by moving a slide in a channel disposed lateral to the housing-interior, whereby the spring contact plate is deflected by way of an actuating bracket which is pivotably mounted in the switch housing at one end and penetrates the side of the housing-interior facing the channel at the other end by means of an angled section.
30	KEY BOARD OF MOBILE PHONE	US13393957	2010-06-25	US20120165079A1	2012-06-28	WEI CHEN
This invention provides a key board of mobile phone applied in key circuit of mobile phone, comprises a PCB circuit board, wherein a first electrode, a second electrode and a third electrode are disposed on the PCB circuit board, the second electrode is disposed around the first electrode in circular form, tooth profile structures disposed matched with the third electrode are extended from an outer side of the second electrode, the third electrode is connected with the first electrode, the setting can be applied to various types of keys. The key board of the mobile phone provided in this invention can not only be applied to the dome keys, but also the carbon granule keys. If customers need different designs of keys, the new keys are needed to be redesign, and a new main board is not necessary to design, which greatly saves development time and lowers the cost.
31	Switch contact structure	US09763123	2001-06-28	US06573467B1	2003-06-03	Kiyoshi Nakanishi; Takao Monden; Yoshitomo Ishikawa
A contact structure of a switch comprises a first contact (1), and one or more doughnut-like second contacts (2) surrounding the first contact (1), and the second contacts (2) are provided with one or more band-like contacts (3a), (3b), (3c), (3d) extending to the opposite side from the first contact (1). With this structure, an area of a metal pattern portion of the second contact (2) becomes smaller as compared with prior art. In a compact electronic device used for a numeric keypad of a mobile telephone or the like, the contact structure can be reduced in size and weight to the utmost and resources can be saved to the utmost.
32	Force Switch	US15894361	2018-02-12	US20180166237A1	2018-06-14	Kevin W. Smith
A method of creating a switch, comprising disposing a switching element movably within an interior cavity of the switch to define first and second positions along a switching axis of the switching element, disposing a biasing element about the switching element to impart a biasing force to the switching element to place the switching element in one of the first and second positions until an external force imparted to the switching element exceeds the biasing force to cause the switching element to move to the other position, disposing a biasing force-adjusting element in cooperative engagement with the biasing element such that a magnitude of the biasing force is adjustable, and coupling a conductive contact to the switching element to define a first switching state when the switching element is in the first position and a second switching state when the switching element is in the second position.
33	CIRCUIT BREAKER INCLUDING CURRENT PATH GEOMETRIES THAT INCREASE CONTACT POPPING LEVEL	US14624471	2015-02-17	US20160240329A1	2016-08-18	Hardik Upadhyay; Shawn Couceiro Fonseca; Linda Yvonne Jacobs; Dhirendra Kumar Tiwari
A circuit breaker includes a housing, and a movable contact arm arranged in the housing. The movable contact arm includes a movable contact. A stationary contact assembly is arranged in the housing. The stationary contact assembly includes a base member including a first side and an opposing, second side. An anti-popping recess having a wall portion formed in one of the first and second sides and defines a cantilevered arm portion. A stationary contact member extends from the first side toward the second side.
34	VACUUM INTERRUPTER WITH DOUBLE COAXIAL CONTACT ARRANGEMENT AT EACH SIDE	US14567489	2014-12-11	US20150114931A1	2015-04-30	Dietmar GENTSCH; Tarek LAMARA; Alexey SOKOLOV
A vacuum interrupter is provided with a double co-axial contact arrangement in which an inner contact can have a TMF-like or Pin shape arranged within a concentrically cup shaped AMF coil having a single layer or multilayered contact parts at each side, on the side of a fixed contact arrangement as well as on the side of a movable contact arrangement. To provide high conductivity and low resistance, the outer cup shaped contact is made from a double or multiple layer arrangement, wherein at least one layer is made from a hard steel or steel alloy, and at least a second layer is made from material with high thermal conductivity.
35	METHOD FOR SENSING WELDED CONTACTS ON A SWITCHING DEVICE	US14266198	2014-04-30	US20140340090A1	2014-11-20	Jeffrey P Lothamer; Daniel L. Kelly
A method for sensing a welded relay contact when breaking both sides of a power line on a HVAC device including the steps: applying a first signal to one of a pair of switching devices; electronically sensing a second signal, with a sensing device, whether the other of said two switching devices is welded closed; and sending a third signal from the sensing device indicative of whether the other of said two switching devices is welded closed.
36	Key device for mobile phone	US13265333	2010-06-25	US08546715B2	2013-10-01	Wei Chen
The present invention discloses a key device for a mobile phone, which comprises a printed circuit board (PCB), a key disposed on the PCB and a metal dome disposed above the key. The metal dome is able to make electrical contact with the key. The key comprises a first electrode, a second electrode and a third electrode, and the third electrode is formed as two rings in which the first electrode and the second electrode are disposed respectively. In the key device for a mobile phone provided by the present invention, the key is formed with three electrodes, so when the metal dome makes contact with the first electrode or the second electrode, the three electrodes of the key are electrically connected with each other simultaneously. This imparts the key for a mobile phone with the compatibility, thereby reducing the product cost and shortening the duration of research and development.
37	Keypad and method for identifying keystrokes of a keypad	US12212670	2008-09-18	US07888610B2	2011-02-15	Teck Chye Allen Lim
Embodiments of the invention are related to a keypad and an electronic device having a keypad. In one embodiment a keypad comprises a plurality of keys. Each of the plurality of keys comprises one main electrode and at least one signal electrode is being adapted to connect electrically the main electrode and the at least one signal electrode when said key is pressed. The main electrode is connected to a reference potential connection of the keypad and surrounds the at least one signal electrode of said key.
38	Planar multiple switch	US867515	1978-01-06	US4207444A	1980-06-10	Victor B. Kley
The frequency capability of a planar multiple switch for entry of digital data is improved by forming an upper conductive planar member from fine conductive elements electrically joined, such as a screen or conductor pattern, together but with sufficient space between elements to substantially reduce capacitive coupling between the upper member and lower contact members. Further, multiple bit switch areas are formed adjacent single bit switch areas; and coded contact areas are formed on parallel lines by placing insulation on selected sections of lines and building up adjacent contact sections by additional conductor material.
39	Electrical data entry devices	US867516	1978-01-06	US4178481A	1979-12-11	Victor B. Kley
Planar resistive connecting means for the edges of a rectangular resistive graphic area has a higher effective resistance parallel to the edges of the resistive graphic area than that of the resistive graphic area. This higher effective resistance is formed by means of configuring the connecting areas such as by forming outer edges at acute angles with the edges of the resistive graphic area or by forming slits transverse to the edges of the resistive graphic area. There is also disclosed a combination of a resistive graphic area surrounded by a plurality of planar conductors forming multi-bit digital switching facilities operated by a common conductive plane.
40	Electrical switch assembly	US844598	1977-10-25	US4156802A	1979-05-29	Michael N. Gilano; James C. Hayes
An inexpensive, yet highly reliable, electrical switch contact assembly with excellent human factors considerations includes an electrical contact assembly having a plurality of switch positions, a cover plate disposed adjacent the switch contact assembly with an aperture for each switch position, and at each switch position an apertured key, a follower disposed within the key aperture, a cap containing the follower within the key aperture and key and follower springs biasing the key and follower respectively to provide separate and independent control over key actuation and switch contact closure forces. A contact engagement post of the follower may be accurately positioned above a switch contact notwithstanding variations in spring characteristics an a curvilinear engagement surface assures optimum distributed switch closure pressure for high reliability switch actuation. Switch contact patterns with oppositely disposed and interdigitated circularly and radially extending portions assure the security of multiple switch closure engagements.

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