Matches 1 - 23 out of 23
Match Document Document Title
5201824 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...
4697052 Emergency switching apparatus  
An emergency switching apparatus is provided having an operating button which keeps the trace of its actuation and controls an electric switch. The switch is struck by a piston which is itself...
4686339 Snap-on actuator for toggle switch  
A snap-on actuator for use with a miniature switch of the type usually fitted with a toggle. The toggle is shortened and has a slot for receiving a C-shaped retainer. The retainer holds the...
4525613 Spiral spring keyboard switch with hairpin spring tactile feedback  
An improved switch assembly is disclosed, having particular application as part of a key in a computer keyboard. The switch includes a housing including a base, having electrical contacts secured...
4492838 Key switch having an actuator integral with the return spring  
Key switch assembly comprises a frame and a plunger in the frame which is movable from an extended position to a depressed position to close a switch. A one piece member is provided which serves as...
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...
4479111 Photo-optical switch apparatus  
Photo-optical switch apparatus provided with integral, positive, mechanical, tacticle feedback mechanism wherein a horizontally disposed biasing spring carried by a light blocking and unblocking...
4475020 Slide switch operating device  
An operating device for switching a slide switch by moving a slide member of the slide switch in response to movement of an operating member includes an acting member which is provided on the...
EP0119695A1 Switch key assembly having improved switch actuation.  
Abstract not available for EP0119695 Abstract of corresponding document: US4447681 Switch key comprises a frame having a frame column and a plunger guided by the column. A return spring biases the...
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...
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...
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...
4440992 Low profile keyboard switch actuating assembly  
Low profile switch actuating assembly comprises a frame, a plunger slidably mounted in the frame, and a key top on the force-receiving end of the plunger. The underside of the key top has a...
4434323 Scrambler key code synchronizer  
A method for synchronizing the scrambling sequences of communicating scrambler units of a privacy communications system in a reliable and secure manner. The method is particularly adapted for use...
4417115 Switch actuating assembly having improved cams and plural modes  
A switch actuating assembly for a keyboard switch comprises a frame and plunger slideably mounted on the frame. The plunger has an integral deflectable camming arm extending parallel to the frame...
4376239 Industrial membrane switch  
An electrical switch is provided with a switch operator having a resilient pad on its distal end, the operator being mounted for axial movement in an operator housing to actuate contacts deposited...
4361743 Lost motion keyswitch  
A hollow plunger is slidable vertically in a housing that has an open upper end, but its upward travel is limited to a predetermined elevated position, in which the lower end of the plunger body is...
4350857 Illuminated industrial membrane switch  
An electrical switch is provided with a switch operator having a resilient pad on its distal end, the operator being mounted for axial movement in an operator housing to actuate contacts deposited...
4156802 Electrical switch assembly  
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...
4154997 Miniature multi-contact pushbutton switch  
A pushbutton switch having an extremely small size for its number of contacts and capability. The switch has a tubular insulating housing with the snap-in pushbutton non-rotatably keyed in and...
4117292 Dual spring actuator for keyboard switch assembly  
An economical yet versatile dual spring actuator switch assembly providing an excellent tactile impression includes a planar switch closure assembly having domed protrusions extending from a...
3993884 Detachably mounted keyboard pushbutton actuators and housing assembly  
Universal keyboard with individually removable switch modules each adapted particularly for use with a printed circuit switch, although also adapted to close or actuate other types of switch...
3961146 Pretravel switch for portable tools  
A trigger switch for a portable electric tool providing substantial pretravel of the trigger before closing force is applied to the contacts. This is a safety measure to prevent the motor from...
Matches 1 - 23 out of 23