Keyboard for typewriters or similar machines

Details Keyboard for typewriters or similar machines Keyboard for typewriters or similar machines

1987-11-25

1989-10-31

Wright, Jr., Ernest T.

Typewriting machines

Key-board or key lever-actuating mechanism

Including means generating a signal for type selecting or...

400490, 200 5D, 200341, B41J 508

Patent

active

048773476

ABSTRACT:
A keyboard for typewriters or similar machines has a key support, switching contacts and key push rods, each of which is acted upon by a spring. The design of the few individual parts assures their simple manufacture (extruded parts and a stamped part) as well as an assembly just as simple and therefore automated, and, if desired, even without screws or aids of that type. Activation of the individual keys takes place with satisfactory tactile feedback and without undesireable vibrations.

REFERENCES:
patent: 3705276 (1972-12-01), Seeger, Jr. et al.
patent: 3826882 (1974-07-01), Giolitti et al.
patent: 3900712 (1975-08-01), Fukao
patent: 3909564 (1975-09-01), Scheingold et al.
patent: 3964593 (1976-06-01), Pointon
patent: 3999025 (1976-12-01), Sims, Jr.
patent: 4251703 (1981-02-01), Hoeft et al.
patent: 4528428 (1985-07-01), Gotoh et al.
patent: 4602138 (1986-07-01), Berutto et al.
patent: 4689608 (1987-08-01), Bolda et al.
patent: 4707578 (1987-11-01), Burkhardt
patent: 4713507 (1987-12-01), Burkhardt
IBM Technical Disclosure Bulletin, "Keyboard Assembly", Duranske, vol. 20, No. 9, Feb., 1978, p. 3614.

Affiliated with

Also associated with

Rating

Keyboard for typewriters or similar machines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Keyboard for typewriters or similar machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keyboard for typewriters or similar machines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-622975