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Lord Kelvin, British mathematician and physicist ; 1897
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| Number | Title | Issue Date |
| 6965087 | Electric switch An electric switch, in particular for a high load, such as a power switch. The switch has a contact system comprising a movable switching contact and at least one stationary contact. A movable actuation member, when moved, interacts with the switching contact for th... | 11/15/2005 |
| 6953905 | Electrical switch An electrical switch for low to medium wattage applications such as in vehicles, appliances, and the like, includes a flexible, resilient spring member which is operable mechanically to latch the switch in one of two positions while also carrying electrical current ... | 10/11/2005 |
| 6900399 | Electrical switch assembly An electrical switch assembly for actuating an electrical circuit by closing at least one pair of conducting contacts in a sliding manner is disclosed. The assembly includes a contact carrier within a switch housing, a spring attached to the carrier that biases the ... | 05/31/2005 |
| 6878894 | Pushbutton switch A pushbutton switch having a housing (10), a push button (12) mounted in said housing for axial movement between a normal position and a depressed position, the push button being spring-loaded into the normal position and carrying an elastically mounte... | 04/12/2005 |
| 6831242 | Push switch device A push switch device of the invention comprises a body including a set of terminals and closed via a cover. An inner side of the cover is provided with a second resilient unit on which is formed a stopper portion. A push unit is further formed through the body, the ... | 12/14/2004 |
| 6756554 | Tact switch A tact switch includes an insulative housing, a plurality of fixed contacts retained in the insulative housing, a movable contact, an actuator and a top cover. Each fixed contact portion exposed on the bottom wall of the insulative housing. The top cover is mounted ... | 06/29/2004 |
| 6743031 | Plug connector with a switch A plug connector has a U-shaped snap-on clip with a web, which incorporates a contact lug. The web is seated in a slot of the casing. A contact is situated at the end of the U-shaped snap-on clip, between its arms. An opening for inserting a contact pin is situated ... | 06/01/2004 |
| 6495783 | Push actuated electrical switch A miniature electrical switch is closed when a pusher (44) is pushed forwardly (F) to snap down a snap dome tripping member(36) and push a contact blade (50) against a contact part (28). Forward sliding of the actuator is converted into downward movement ... | 12/17/2002 |
| 6441332 | Switch assembly incorporating contact wedge 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 a... | 08/27/2002 |
| 6433291 | Switch device In a switch device, a support arm is retained by a conductor plate at one of its ends and by a center terminal at its other end The spring member, which made of an elastic round wire, is placed in a bent form between the conductor plate and the center ter... | 08/13/2002 |
| 6384358 | Direct current switch capable of turning on slowly and off quickly Disclosed is a direct current switch which comprises, in a housing, a slidable actuator, one stationary contact and one pseudo stationary contact both fixed to the housing, a seesaw-like plate having one movable contact and one pseudo movable contact fixe... | 05/07/2002 |
| 6326572 | Push-button switch assembly A push-button switch assembly mainly comprises a push button, a switch casing, a positioning lever, and a resilient contact piece, wherein the push button is depressed for positioning a protruding portion of the positioning lever to interact with a, polyg... | 12/04/2001 |
| 6291784 | Snap switch A compact snap switch that can be assembled mechanically and is equipped as a microswitch. The switch includes a housing for the microswitch and consists of two asymmetrically divided halves whose cut site runs along the edge of one of the large side surf... | 09/18/2001 |
| 6163282 | Vehicle equipment control device Disclosed is a vehicle equipment control device capable of effecting discrimination between a plurality of switch functions without involving any change in the circuit configuration. A plurality of detection switches 2 each of which has three driving pins 4a ... | 12/19/2000 |
| 6124556 | Electrical switch, in particular for vehicles An electrical switch has a switch housing, a plurality of pin-like contact parts arranged in the switch housing substantially parallel to one another and extending in a substantially same direction, different potentials to which the contact points are con... | 09/26/2000 |
| 6114644 | Tact switch In a tact switch in which a dish-shaped movable contact piece (30) formed of a resilient material is operated to be inverted and returned to the original position within a housing to thereby make and break bridging contact between a plurality of fixed con... | 09/05/2000 |
| 6046419 | Switch with sequentially operated contracts A device for turning an electric motor on and off implements an expedient instantaneous turn-on or turn-off switching operation in which contact bridges are released for closing or pushed open by means of a spring-operated over-center device. Pivoting ele... | 04/04/2000 |
| 6028279 | Lighted push button switch A push-button switch (20) having a housing (26) is disclosed. The push-button switch includes a cap assembly (22) reciprocably mounted within the housing. The push-button switch also includes at least a first subminiature switch (64) that is actuatable be... | 02/22/2000 |
| 6018132 | Horizontal tact switch A horizontal tact switch comprises an insulative base having contacts partially retained therein and partially exposing to exterior. A metal cover is fixed to the insulative base and has a plan plate from an edge of which a lever curvedly extends. The lev... | 01/25/2000 |
| 5981885 | Operation-staggered dual switch An operation-staggered dual switch is provided having a casing, first and second switching mechanisms installed in the casing, the switching mechanisms being operatively connected such that operation of the first switching mechanism may follow operation o... | 11/09/1999 |
| 5952903 | Operation of residual current devices A push button residual current device employs a single push button to perform setting and testing operations. Over a first part of the down stroke of the push button a test trip is initiated which causes the device to trip if it is properly functioning. W... | 09/14/1999 |
| 5746309 | Ratchet cam alternate action mechanism An alternate action mechanism includes a ratchet cam moving a resilient contact between first and second positions. A push button, including an interface member, rotates the ratchet cam by applying force to ratchet teeth. The alternate action mechanism in... | 05/05/1998 |
| 5667061 | Linear cam-assisted plunger switch A linear cam-assisted plunger switch including a cam member having a body portion and at least three outwardly extending wedge-shaped arms. The wedge-shaped arms having a flat surface and a sloped surface formed at an angle with respect to the flat surfac... | 09/16/1997 |
| 5660272 | Laterally actuated electrical switch A miniature electrical switch, of the type that includes a snap dome or tripping member (36) lying over a pair of contacts (30, 34), includes a small and effective actuator arrangement (41). The actuator arrangement includes a sheet metal force transfer m... | 08/26/1997 |
| 5651452 | Electric switch having a pivotal contact link-actuating arm An electrical switch includes a stationary contact supported in a housing; a movable contact displaceable between first and second states toward or away from the stationary contact; a blade stationarily supported in the housing; a contact link carrying th... | 07/29/1997 |
| 5626223 | Cam-assisted switch The present invention includes a cam-assisted switch. A keycap or button is provided with three or more cam contact points. A cam member is provided with an associated number of outwardly extending fingers corresponding to each cam contact point on the ke... | 05/06/1997 |
| 5545864 | Push switch A push button switch (3) encounters, during a stroke of a push rod (6) thereof, a pressure point (D), a switching (contact-making) movement, and a return tension. A one-piece spring element (16) is provided for achieving this with an uncomplicated structu... | 08/13/1996 |
| 5488213 | Low-profile keyboard key A key switch which is particularly suitable for low profile keyboards includes a plunger whose contacting movement is converted by means of trigger cams into a movement perpendicularly to the plunger movement for switching a contactor which is movable rel... | 01/30/1996 |
| 5464954 | Safety switch assembly The safety switch unit controls the source of power for machinery in accordance with the opening and closing of a room door. The safety switch includes an actuator (2) secured to a door, a cam shaft extending transversely of a direction in which the actua... | 11/07/1995 |
| 5420385 | Key operable safety switch A key operable safety switch includes a housing and a switch operator that is operated by an actuator. A slot in the housing receives the actuator. A plurality of discs independently rotatably mounted on an axle, the discs each having a radial recess alig... | 05/30/1995 |
| 5178265 | Push-push snap switch An electrical switch which has a body, a contact base at one end of the body, a cam member positioned for rotation within the body, and a plunger positioned within the body for nonrotating movement. The cam member has a conductive bridge contact portion a... | 01/12/1993 |
| 5124514 | Structure of mechanical key switch A key switch comprising a bottom shell connected with an upper shell for holding a spring plate, a switching mechanism which is comprised of two conducting plates respectively connected to the two opposite terminals of a circuit, and a spring supported ke... | 06/23/1992 |
| 4989292 | Small dust catcher A small dust catcher includes a main tube and an inlet section. The inlet section is releasably connected to the main tube. The dust catcher further includes a filter assembly which is removably supported with an upper opening of the inlet section, with a... | 02/05/1991 |
| 4963706 | Safety switch assemblies A safety switch assembly comprises a safety switch for securement to an enclosure having an openable closure, and an actuator for operating the safety switch for securement to the closure. The safety switch comprises a housing, containing electrical conta... | 10/16/1990 |
| 4920245 | A push-button switch with uniform on and off timings A push-button switch which eliminates a dispersion in on and off timings thereof is disclosed. The push-button switch has a pressing spring, and a switch element which includes a pressing piece, a fixed contact element and a movable contact element. The m... | 04/24/1990 |
| 4891013 | Connector for a thin electronic appliance A connector for a thin electronic appliance, for example, an IC card reader for electrically connecting the thin electronic appliance with its receiving member, for example, an IC card reader/writer, which comprises a detector switch key body of insulatio... | 01/02/1990 |
| 4871885 | Combined push and slide switch assembly The on-off operation of the switch as the slide switch is effected by moving the operating knob in the first horizontal direction, namely, the X-direction to move the slider A together with the slider B in the same direction and thereby sliding the first ... | 10/03/1989 |
| 4866228 | Key switch with multiple contact points A key switch is disclosed wherein a key stem is slidably movable within a switch case. Upward movement of the key stem under spring bias causes electrical disconnection between a stationary contact and a movable leaf-spring terminal type contact both moun... | 09/12/1989 |
| 4803316 | Push button switch using dome spring and switch element thereof A push button switch employing a dome spring switch element mounted in a vertical orientation relative to a generally horizontal orientation of a bottom support plate, and a key top and associated plunger which are mounted for limited, reciprocating verti... | 02/07/1989 |
| 4760225 | Push button switch having a frame member for preventing solder penetration of switch contacts A push button switch includes a case consisting of an upper case member and a lower case member, a stem vertically movably provided in the case, and a switch element for effecting on-and-off operation of the switch by vertical movement of the stem. A hold... | 07/26/1988 |