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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 7439955 | Input keyboard with increased number of keys for an electronic device with a limited number of connecting pins An electronic device includes a microprocessor connected to an input keyboard comprising primary conductive lines connected to primary areas and to a terminal. It further includes first, second and third secondary conductive lines connected to secondary areas and to... | 10/21/2008 |
| 7326869 | Tactile feedback plunger switch A tactile feedback switching mechanism having a plurality of switching states. The tactile feedback switching mechanism includes a plunger switch having a plunger. When the plunger is displaced a given distance the switch changes state. A covering lies at least over... | 02/05/2008 |
| 7091435 | Push switch apparatus A push switch apparatus includes a switch that has a movable contact and a fixed contact built therein, a driving body that makes the movable contact contact/separate with/from the fixed contact by pressing the switch, an operating knob that holds the driving body, ... | 08/15/2006 |
| 6982392 | Water resistant actuating mechanism for plunger type switches A water resistant actuating mechanism for a plunger type limit switch using a bowed spring to activate the plunger of a plunger type switch mounted within an actuating mechanism housing includes a flexible seal for covering the hole or opening in through which the b... | 01/03/2006 |
| 6850223 | Key mechanism for an input device A key mechanism for an input device includes a key having an axle that is coupled to a guide in the housing of the input device in a manner such that the key pivots about the axle when the key is depressed, while allowing the axle to simultaneously move up or down w... | 02/01/2005 |
| 5923011 | Chatter preventing switching device having movement detector with contact piece for turning on/off electric contact A switching device is provided which includes a moving body and a movement detection switch. The movement detection switch has a contact piece which is urged forwardly and which is moved by a spring so as to turn an electric contact on or off. When the mo... | 07/13/1999 |
| 5826709 | Self-adjusting plunger switch A self-adjusting plunger switch having a housing (3) carrying contacts (7, 19) with an actuation element (5, 27) for actuation of the contacts (7, 19). A resilient element (11) biases the actuating element outwardly of the housing toward an inoperative po... | 10/27/1998 |
| 5772010 | Push button switch A push button switch for use with an operating key of electronic appliances having a long working stroke, a clear step feeling during the switching operation, and an overstroke after switching is complete. The switch contains a pressure member 17 made of ... | 06/30/1998 |
| 5203448 | Push button key switch A push button key switch has an intermediate guide cylinder which is free to slide lengthwise inside a fixed guide cylinder and which at the same time holds the neck of a keytop while allowing it to slide freely lengthwise. The intermediate guide cylinder... | 04/20/1993 |
| 5172114 | Tactile effect switch and keyboard using such a switch In the tactile effect switch and a keyboard using such a switch, the tactile effect is obtained by combining a snap acting switch and the deformation of a stud, axially deformable under compression, which is integrally formed on a membrane made from a res... | 12/15/1992 |
| 5168982 | Switch device The invention relates to a switch device which is suitable for use, for example, in a telephone to detect the presence of the handset (11) in the cradle (9). The switch device comprises a frame (3), a switch (4) movable in relation to the frame, and a sep... | 12/08/1992 |
| 5140293 | Manual control device for thermal relays A device is disclosed for the manual control of thermal relays, comprising a case with a push-button on a front wall and having a transmission member; the latter comprises a rigid support and a resilient lever applicable on the stop and re-set pushers of ... | 08/18/1992 |
| 5120923 | Push button switch A push button switch including a case, a key top fastened to the case, an elastic member disposed between the case and the key top and acting to upwards urge the key top and a contact portioned so as to confront a spring member fastened to an operation me... | 06/09/1992 |
| 5066841 | Dual plunger switch A switch assembly is provided with a short travel switch (16, FIG. 3) activated by a push button that has a long travel both before and after closing of the short travel switch, and which provides a substantially constant spring rate throughout push butto... | 11/19/1991 |
| 5057657 | Electrical switch actuator mechanism A low profile keyboard switch actuator mechanism having tactile and/or audible feel, for use in combination with a membrane switch assembly, and which includes a housing for mounting on top of the membrane switch assembly, a plunger slidably positioned in... | 10/15/1991 |
| 4985603 | Electric switch having reduced actuator play An electric switch design compensates for unprodictable but significant variability, within a known range, in case and cover material shrinkage during manufacture. A contact actuator has radially spaced guide bosses and an axial barrel providing a plurali... | 01/15/1991 |
| 4965420 | Switch actuator A switch actuator includes a base and a plunger mounted for movement on the base. An electrical contact is mounted for relative movement on the base to establish an electrical connection. An actuator includes a head portion and a pair of spring arms. The ... | 10/23/1990 |
| 4940864 | Floating operating and release paint switch actuator A switch actuator includes a base and a plunger mounted for movement on the base. An electrical contact is mounted for relative movement on the base to establish an electrical connection. An actuator assembly is mounted for movement on the base and is ope... | 07/10/1990 |
| 4939324 | Keyswitch for computer keyboard A keyswitch operator includes a supporting bearing block and axially movable keytop and plunger. A cylindrical plunger is slidably guided between alternating flat and conical surfaces about a through bore in the bearing block. The flat surfaces provide co... | 07/03/1990 |
| 4933521 | Floating release point switch A switch actuator provides a floating release point switch assembly, including a base. An electrical contact on the base establishes an electrical connection. A movable bidrectional cam, in the form of a helix, is operatively associated with the electrica... | 06/12/1990 |
| 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 |
| 4803320 | Electric switch construction An electric switch construction having a body member with a a stationary electrical contact, a movable plunger in the body member and carrying a second electrical contact, and a compression spring, one end of which is carried by the plunger. The other end... | 02/07/1989 |
| 4778960 | Floating operating and release point switch A switch actuator providing a floating operating and release point switch including a base, a plunger having an exposed operating end mounted for movement on the base, a mount for relatively movable switch contacts on the base, and a friction piece normal... | 10/18/1988 |
| 4631378 | Push button switch An improved push button switch is disclosed which essentially comprises a key stem displaceable up and down in the switch mounting frame, a depressing portion fixedly secured to the key stem and a contact portion adapted to be turned on or off by depressi... | 12/23/1986 |
| 4629842 | Electric contactor for pneumatic servomotor for braking The contactor incorporates, in a cavity (70), a fixed contact blade (20) and a movable contact blade (21) pushed elastically away from the fixed contact blade (20) in the opposite direction to the direction in which the follower (13) is pushed, the follow... | 12/16/1986 |
| 4613737 | Low profile pushbutton switch with tactile feedback A pushbutton switch which includes a casing having a bottom wall and a top wall, and a switch device disposed in the casing on the bottom and composed of a relatively thin case having a flexible presser and accommodating a movable contact sheet, a spacer,... | 09/23/1986 |
| 4602138 | Keyboard with removable modular keys A contact-type keyboard comprises a plurality of modular keys and a support panel (11) provided with openings (12) in which the keys are inserted. Each key is provided with a pair of resilient tongue portions (51, 52) which lock it to the panel (11) and w... | 07/22/1986 |
| 4596912 | Push-button switch A push-button switch for use in the keyboard of an electronic typewriter, word processor, or the like comprises a casing, a stem extending through the casing for operating a movable contact, a top cover mounted on the outer end of the stem, a cylinder of ... | 06/24/1986 |
| 4553009 | Keyboard switch with pivotal actuator lever A keyboard switch which is used in combination with a membrane switch array includes a housing adapted to be positioned on the membrane switch array. There is an upright opening in the housing and a plunger is reciprocal in the housing opening. There is a... | 11/12/1985 |
| 4515999 | Full travel keyboard A full travel membrane keyboard is presented having membrane switches with an elastomeric layer between the membrane switching array and upper mechanical elements of the key, the elastomeric layer serving to evenly distribute actuation forces, contribute ... | 05/07/1985 |
| 4489227 | Back lighted, full travel push button membrane keyboard A keyboard having a side-lighted transparent support plane including a plurality of light-pipes vertically projecting therefrom through an overlying foam over-travel pad. A pair of patterned membrane switch layers, separated by a low density foam spacer, ... | 12/18/1984 |
| 4479040 | Tactile feel switch with positive switch actuation A switch for use in keyboards and the like has a housing mounted on a baseplate, with a set of electrical contacts associated with the housing. There is a reciprocative plunger mounted in the housing. An actuator is operatively connected to the electrical... | 10/23/1984 |
| 4467160 | Low profile switch A low profile switch key has a base which slidingly supports a pushbutton. The pushbutton is slidingly engaged with a plunger body by a lost motion connection. The plunger body carries cams which control the flexing of contactors to make and break conduct... | 08/21/1984 |
| 4459441 | Simplified limit switch construction Multiple limit switch comprising telescope plungers (16), each of which has a U-shaped anti-rotation element (62) engaging over the inner end of the plunger, this anti-rotation element comprising a hole (68) for the inner portion (44) of the plunger to pa... | 07/10/1984 |
| 4454562 | Keyswitch with telescoping plunger A low profile keyswitch utilizes a telescoping plunger assembly. A linear feel and overtravel are achieved. The telescoping plunger assembly includes an outer plunger shaft and an inner plunger shaft slideably mounted therewithin for telescopic extension ... | 06/12/1984 |
| 4453198 | Linear feel keyswitch with hysteresis A capactive keyswitch utilizes an arrangement of three spring forces to provide a linear feel, hysteresis, and overtravel. A telescoping plunger assembly includes an outer plunger shaft and an inner plunger shaft slideably mounted therewithin for telescop... | 06/05/1984 |
| 4447687 | Pushbutton switch A pushbutton switch, suitable particularly for keyboards of business machines substantially comprises a cup-shaped casing which may be made in two parts and has its cup edge side closed by a pushbutton. Against the side of the button, the upper end of a r... | 05/08/1984 |
| 4395609 | Cam operated dual switch assembly A linear motion switch assembly suitable for a set switch of a vehicle automatic speed control contains two cam operated switches which are actuated in a specific sequence, i.e. the first switch and then the second switch is actuated upon the movement of ... | 07/26/1983 |
| 4317974 | Switch protecting and adjusting arrangement A switch protecting and adjusting arrangement for a switch operating mechanism, wherein a movable member is connected to one end of an operating lever, a slide member is provided on the movable member through a spring so as to be displaceable thereon, and... | 03/02/1982 |
| 4192982 | Deadman's switch A switch includes an actuating element movable against a biasing force from a rest into a working position. The element is engageable with a member movable under a force of a predetermined magnitude applied thereto between a first position corresponding t... | 03/11/1980 |
