Patent US3353646A successfully refreshed from Google Patents.
US3353646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter having means to store characters selected during carriage movements
Assignee: International Business Machines Corp
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Filing: 1966-09-14
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Granted: 1967-11-21
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Expires: 1986-09-14
Abstract
No abstract record available.
Inventors
- 👤 Richard J Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:23
CPC Classifications
B; B41; B41J; B41J5/00; B41J5/08; B41J5/18; B41J5/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
272 words
A TYPEWRITER HAVING A KEYBOARD, A PLATEN, PRINTING MEANS COOPERABLE THEREWITH UNDER THE CONTROL OF SAID KEYBOARD, AND MEANS SUPPORTING SAID PLATEN AND SAID PRINTING MEANS FOR RELATIVE MOVEMENT ALONG A WRITING LINE, THE IMPROVED CONTROL MECHANISM COMPRISING: A TRANSFER LINK INDIVIDUALLY ASSOCIATED WITH EACH CHARACTER KEY OF SAID KEYBOARD, EACH OF SAID TRANSFER LINKS HAVING A NORMAL INACTIVE CONDITION, A STORED CONDITION, AND A CONTROL CONDITION, EACH OF SAID TRANSFER LINKS WHEN IN ITS CONTROL CONDITION BEING OPERATIVE TO EFFECT PRINTING OF AN ASSOCIATED CHARACTER; A CYCLICALLY OPERABLE PRINT POWER CONTROL DEVICE FOR EFFECTING PRINT OPERATION IN CONJUNCTION WITH SAID TRANSFER LINKS; MEANS NORMALLY OPERABLE UPON THE EXISTENCE OF ANY TRANSFER LINK BEING IN ITS STORED CONDITION FOR INITIATING A CYCLE OF OPERATION OF SAID PRINT POWER CONTROL DEVICE; MEANS OPERATED BY SAID PRINT POWER CONTROL DEVICE FOR PLACING STORED TRANSFER LINKS INTO THEIR CONTROL CONDITION; A LINE RETURN MECHANISM OPERATIVELY CONNECTED TO ONE OF SAID PRINTING MEANS AND SAID PLATEN CAUSING RELATIVE MOVEMENT THEREOF FROM AN ADVANCED LINE POSITION TO A NEW LINE POSITION, SAID LINE RETURN MECHANISM COMPRISING A CONTROL MEMBER HAVING A NORMAL INACTIVE POSITION AND AN ACTIVE POSITION INDICATIVE OF LINE RETURN OPERATION; A LATCH OPERATIVELY ASSOCIATED WITH SAID CONTROL MEMBER FOR RETAINING SAID CONTROL MEMBER IN ITS ACTIVE POSITION WHEN INDEPENDENTLY MOVED THERETO; MEANS RESPONSIVE TO THE ATTAINMENT OF A NEW LINE POSITION BY SAID PRINTING MEANS AND SAID PLATEN FOR MOVING SAID LATCH TO UNLATCH SAID CONTROL MEMBER; AND ANCILLARY MEANS COOPERATIVE WITH SAID CYCLE INITIATING MEANS FOR PREVENTING CYCLE INITIATION THEREBY THAT ANY TIME SAID CARRIAGE RETURN CONTROL MEMBER IS IN ITS ACTIVE POSITION.
Claim 2
Dependent Claim
272 words
A TYPEWRITER HAVING A KEYBOARD, A PLATEN, PRINTING MEANS COOPERABLE THEREWITH UNDER THE CONTROL OF SAID KEYBOARD, AND MEANS SUPPORTING SAID PLATEN AND SAID PRINTING MEANS FOR RELATIVE MOVEMENT ALONG A WRITING LINE, THE IMPROVED CONTROL MECHANISM COMPRISING: A TRANSFER LINK INDIVIDUALLY ASSOCIATED WITH EACH CHARACTER KEY OF SAID KEYBOARD, EACH OF SAID TRANSFER LINKS HAVING A NORMAL INACTIVE CONDITION, A STORED CONDITION, AND A CONTROL CONDITION, EACH OF SAID TRANSFER LINKS WHEN IN ITS CONTROL CONDITION BEING OPERATIVE TO EFFECT PRINTING OF AN ASSOCIATED CHARACTER; A CYCLICALLY OPERABLE PRINT POWER CONTROL DEVICE FOR EFFECTING PRINT OPERATION IN CONJUNCTION WITH SAID TRANSFER LINKS; MEANS NORMALLY OPERABLE UPON THE EXISTENCE OF ANY TRANSFER LINK BEING IN ITS STORED CONDITION FOR INITIATING A CYCLE OF OPERATION OF SAID PRINT POWER CONTROL DEVICE; MEANS OPERATED BY SAID PRINT POWER CONTROL DEVICE FOR PLACING STORED TRANSFER LINKS INTO THEIR CONTROL CONDITION; A LINE RETURN MECHANISM OPERATIVELY CONNECTED TO ONE OF SAID PRINTING MEANS AND SAID PLATEN CAUSING RELATIVE MOVEMENT THEREOF FROM AN ADVANCED LINE POSITION TO A NEW LINE POSITION, SAID LINE RETURN MECHANISM COMPRISING A CONTROL MEMBER HAVING A NORMAL INACTIVE POSITION AND AN ACTIVE POSITION INDICATIVE OF LINE RETURN OPERATION; A LATCH OPERATIVELY ASSOCIATED WITH SAID CONTROL MEMBER FOR RETAINING SAID CONTROL MEMBER IN ITS ACTIVE POSITION WHEN INDEPENDENTLY MOVED THERETO; MEANS RESPONSIVE TO THE ATTAINMENT OF A NEW LINE POSITION BY SAID PRINTING MEANS AND SAID PLATEN FOR MOVING SAID LATCH TO UNLATCH SAID CONTROL MEMBER; AND ANCILLARY MEANS COOPERATIVE WITH SAID CYCLE INITIATING MEANS FOR PREVENTING CYCLE INITIATION THEREBY THAT ANY TIME SAID CARRIAGE RETURN CONTROL MEMBER IS IN ITS ACTIVE POSITION.
References Cited (Backward Citations)
US1419172A
Cited
US1824099A
Cited
US2103921A
Cited
US2879876A
Cited
US3045799A
Cited
US3086635A
Cited
US3268051A
Cited
US3077971A
Cited
US3157265A
Cited
US3195707A
Cited
US3191740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |