Typewriting machines – Means auxiliary to typewriting function – Attachment for guiding fingers or hands of typist
Patent
1992-01-27
1993-03-16
Burr, Edgar S.
Typewriting machines
Means auxiliary to typewriting function
Attachment for guiding fingers or hands of typist
150165, 248118, 400713, B41J 2900
Patent
active
051939258
ABSTRACT:
A foam keyboard and wrist-support and keyboard dust-cover apparatus which comprises a foldable, flat-sheet, generally rectangular, flexible foam sheet material comprised of a plurality of separate foam sections singly die cut from a foam sheet material, to form a plurality of foam sections having short, uncut foam hinges connecting each of the foam sections and adapted to be moved between a wrist-support position in front of a keyboard, with a plurality of the foam sections stackably folded on top of each other, to form a wrist-support pad, and with at least one foam section beneath the front portion of the keyboard, to retain the wrist-support keyboard pad in position, and a keyboard dust-cover protecting position, wherein the stacked, folded, foam support pad is then extended, to form a protective dust cover over the face of the keyboard, and a method of preparing a foam keyboard wrist-support and keyboard dust-cover apparatus which comprises die cutting, in a single die-cutting operation, a generally rectangular, foam-sheet section, to form the foam keyboard wrist-support and keyboard dust-cover apparatus.
REFERENCES:
patent: 4703161 (1987-10-01), McLean
patent: 4709972 (1987-12-01), LaBudde et al.
patent: 4922980 (1990-05-01), Parker
patent: 4947984 (1990-08-01), Kaufman et al.
Burr Edgar S.
Crowley Richard P.
Hendrickson Lynn D.
Packaging Industries Group, Inc.
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