04046975 is referenced by 172 patents and cites 9 patents.

Sealed keyboard sandwich having actuator means, a plurality of contactor means, a plurality of contact means and support means therefore, said contacts and contactors forming a plurality of key units, and gas passage means positioned between said actuator means and said support means for selectively permitting the flow of trapped gas from the key units upon depression of a portion thereof. In the preferred structure the sandwich is hermetically sealed from the outside atmosphere.

Title
Keyboard switch assembly having internal gas passages preformed in spacer member
Application Number
5/615230
Publication Number
4046975
Application Date
September 22, 1975
Publication Date
September 6, 1977
Inventor
Richard E Seeger Jr
Topsfield
MA, US
Agent
Donald Brown
Sewall P Bronstein
Assignee
Chomerics
MA, US
IPC
H01H 13/04
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