1
Steve W Stracener: Backlighted illuminated keyboard. KB Denver, Lloyd L Zickert, May 15, 1984: US04449024 (75 worldwide citation)

A backlighted illuminated keyboard including a printed circuit board on which is mounted in a central location a single lamp easily replaceable from the backside of the board and which extends into a clear plastic light diffuser over which an overlay is disposed and a bezel is provided to define key ...


2
Walter R Pounds: Keyboard switch assemblies having two foot support legs on dome-shaped contact member. KB Denver, Hugh H Drake, June 29, 1976: US03967084 (61 worldwide citation)

A keyboard assembly includes an insulative substrate upon which are carried a plurality of conductive paths. Respective portions of the paths are selectively bridged upon depression of a dome-shaped conductive resilient contact element. A pair of space-opposed regions of the dome's marginal portion ...


3
Walter R Pounds: Elastomeric boot for a keyboard subassembly. KB Denver, Lloyd L Zickert, October 5, 1982: US04352968 (54 worldwide citation)

An elastomeric boot for covering a keyboard subassembly and having a lip sealing means extending over and under the assembly to prevent entry of contaminants.


4
Walter R Pounds: Illuminated keyboard. KB Denver, Lloyd L Zickert, December 21, 1982: US04365120 (39 worldwide citation)

An apparatus for illuminating keyboard or individual switches in which a conventional plastic contact actuator member is fabricated of translucent material so that it may function additionally as a conductor and diffuser of light. A lamp source is positioned in the center of a conventional dome-prin ...


5
Walter R Pounds: Keyboard elastomeric cover with buttons having changeable legends. KB Denver, Lloyd L Zickert, December 20, 1983: US04421966 (34 worldwide citation)

A keyboard elastomeric cover which includes buttons or keys having changeable legends, sealing means for sealing the cover to a switch subassembly and alignment bosses or posts coacting with the subassembly to maintain proper alignment between the buttons or keys and the switches on the subassembly.


6
Walter R Pounds: Keyboard assembly. KB Denver, Lee Smith & Zickert, August 28, 1984: US04468542 (29 worldwide citation)

A keyboard assembly including a plurality of key operated switches, each of which includes a dome associated with contacts on a printed circuit board which when triggered upon being subjected to a triggering force closes the switch and upon being released opens the switch and a keycap or push button ...


7
Bill D Dunlap: Method in a snap dome switch keyboard assembly for reducing contact bounce time. KB Denver, Lloyd L Zickert, October 27, 1987: US04703139 (22 worldwide citation)

A snap dome switch keyboard assembly including a printed circuit board having dual contact switch sites with piggy-back snap domes, button actuators for each of the piggy-back snap domes, and an elastomeric member arranged between the domes and the button actuators serving as a force transmission me ...


8
Walter R Pounds, Bill D Dunlap: Switching assemblies. KB Denver, Hugh H Drake, March 25, 1980: US04195210 (18 worldwide citation)

A switching assembly includes an insulative substrate upon which is carried a plurality of conductive paths respective portions of which are selectively bridged upon depression of a resilient conductive contact element. That contact element is generally in the shape of a dome and has a central regio ...


9
Bill D Dunlap: Keyboard switch assemblies. KB Denver, Hugh H Drake, April 18, 1978: US04085306 (15 worldwide citation)

A keyboard assembly includes an insulative substrate upon which are carried a plurality of conductive paths. Respective portions of the paths are selectively bridged upon depression of a dome shaped conductive resilient contact element. Each contact element has a single foot disposed along a margina ...


10
Richard R Watkins, Dale E Brumit, Thomas R Coey: Key switch assembly. KB Denver, Gregory J Nelson, July 4, 1989: US04845319 (13 worldwide citation)

A key switch assembly for direct mounting on a PCB or similar substrate. The key switch has a body with depending mounting pin having retainers thereon to secure the key switch at apertures in the substrate. The key switch body has a hinged key and includes a snappable dome moveable from a non-actua ...