Patent US3380975A successfully refreshed from Google Patents.
US3830352A
Expired / Lapsed
US
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Articulated typewriter frame
Assignee: International Business Machines Corp
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Filing: 1972-10-02
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Granted: 1974-08-20
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Expires: 1992-10-02
Abstract
Abstract The printer and keyboard of a typewriter are supported on independent frames by articulated connections that enable a wide variety of different relationships between the keyboard position and the writing line presented to an operator.
Inventors
- 👤 R Kolpek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:22
CPC Classifications
B; B41; B41J; B41J29/00; B41J29/02; B41J5/00; B41J5/08; B41J5/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
173 words
A typewriter having a printer frame supporting character printing mechanism including means defining a writing line, stand means, first articulated connection means between said stand means and said printer frame to enable support of said printer frame by said stand means in varied orientations with respect thereto, a keyboard frame supporting a plurality of character selecting keybuttons, control connection means between said keybuttons and said printing mechanism, at least one support arm, second articulated connection means between said support arm and said stand means to enable positioning of said support arm in varied orientations with respect to said stand means, releasable holding means for fixing said support arm in a selected orientation with respect to said stand means so that said support arm extends from said stand means in cantilever fashion having a free standing end portion, and third articulated connection means between said keyboard frame and the free standing end portion of said support arm to enable support of said keyboard frame by said support arm in varied orientations with respect thereto.
Claim 2
Dependent Claim
173 words
A typewriter having a printer frame supporting character printing mechanism including means defining a writing line, stand means, first articulated connection means between said stand means and said printer frame to enable support of said printer frame by said stand means in varied orientations with respect thereto, a keyboard frame supporting a plurality of character selecting keybuttons, control connection means between said keybuttons and said printing mechanism, at least one support arm, second articulated connection means between said support arm and said stand means to enable positioning of said support arm in varied orientations with respect to said stand means, releasable holding means for fixing said support arm in a selected orientation with respect to said stand means so that said support arm extends from said stand means in cantilever fashion having a free standing end portion, and third articulated connection means between said keyboard frame and the free standing end portion of said support arm to enable support of said keyboard frame by said support arm in varied orientations with respect thereto.
Claim 3
Dependent Claim
39 words
A typewriter as defined in claim 1 wherein said third articulated connection means comprises a pivot shaft, and holding means associated with said pivot shaft for maintaining said keyboard frame in plural stable positions relative to said support arm.
Claim 4
Dependent Claim
34 words
A typewriter as defined in claim 1 wherein said support arm further includes an extendable section to enable support of said keyboard frame by said stand means at varied distances from said printer frame.
Claim 5
Dependent Claim
23 words
A typewriter as defined in claim 1 wherein said first and second articulated connection means comprise coaxial bearings on a common pivot shaft.
Claim 6
Dependent Claim
41 words
A typewriter as defined in claim 1 comprising a pair of said support arms, one of said support arms being supportingly connected between said stand means and said keyboard frame at each lateral side edge of said printer and keyboard frames.
Claim 7
Dependent Claim
160 words
A typewriter having a printer frame supporting character printing mechanism, including means defining a writing line and stand means for supporting said printer frame, a keyboard frame supporting a plurality of character selection keybuttons, control connection means between said keybuttons and said printing mechanism, and wherein the improvement comprises: at least one support arm, means operatively connecting said support arm between said printer frame and said keyboard frame and including first articulated connection means between said keyboard frame and said support arm to enable support of said keyboard frame by said support arm in varied orientations with respect thereto, second articulated connection means between said support arm and said printer frame to enable positioning of said support arm in varied orientations with respect to said printer frame, and releasable holding means for fixing said support arm in a selected orientation with respect to said stand means so that said support arm serves as a cantilever support for said keyboard frame.
Claim 8
Dependent Claim
160 words
A typewriter having a printer frame supporting character printing mechanism, including means defining a writing line and stand means for supporting said printer frame, a keyboard frame supporting a plurality of character selection keybuttons, control connection means between said keybuttons and said printing mechanism, and wherein the improvement comprises: at least one support arm, means operatively connecting said support arm between said printer frame and said keyboard frame and including first articulated connection means between said keyboard frame and said support arm to enable support of said keyboard frame by said support arm in varied orientations with respect thereto, second articulated connection means between said support arm and said printer frame to enable positioning of said support arm in varied orientations with respect to said printer frame, and releasable holding means for fixing said support arm in a selected orientation with respect to said stand means so that said support arm serves as a cantilever support for said keyboard frame.
Claim 9
Dependent Claim
34 words
A typewriter as defined in claim 6 wherein said support arm further includes an extendable section to enable support of said keyboard frame by said printer frame at varied distances from said printer frame.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |