Detachably mounted keyboard pushbutton actuators and housing ass

Details Detachably mounted keyboard pushbutton actuators and housing ass Detachably mounted keyboard pushbutton actuators and housing ass

1972-09-15

1976-11-23

Scott, James R.

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

200338, 200340, H01H 312, H01H 900, H01H 1300

Patent

active

039938840

ABSTRACT:
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 contacts, which has maximum reliability at minimum cost, satisfies the "best feel" tactile responses desired in a keyboard, while fully protecting the module components and the electrical conducting members against any excessive finger depression impact forces, assures uniformity of forces being applied to switch contacts regardless of variations in forces which may be applied to the key buttons or stems, reduces electric contact bounce, and maximizes the time the switch contacts are held closed during a key stroke.

REFERENCES:
patent: 3213189 (1965-10-01), Mitchell et al.
patent: 3309487 (1967-03-01), Fisher
patent: 3582594 (1971-06-01), Twyford
patent: 3668356 (1972-06-01), Kekas
patent: 3773997 (1973-11-01), Evaus et al.
patent: 3829632 (1974-08-01), Klehm, Jr.

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