US3155033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Print hammer drive mechanism
Assignee: International Business Machines Corp
•
Filing: 1961-05-29
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Granted: 1964-11-03
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Roland D Nelson
- 👤 Donald K Rex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:04
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/02; B41J9/10; B41J9/26; B41J9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
FOR USE IN A HIGH SPEED PRINTER WHICH INCLUDES AN ARRAY OF ALIGNED PRINT HAMMERS WITH ONE HAMMER FOR EACH PRINT POSITION OF THE PRINTER, A HAMMER DRIVE MECHANISM FOR FIRING EACH HAMMER INDIVIDUALLY, COMPRISING: AN ELONGATED PIVOTALLY MOUNTED BAIL; AN ARRAY OF PARALLEL LEAF SPRINGS MOUNTED IN CANTILEVER FASHION ON THE BAIL THERE BEING A SPRING FOR EACH HAMMER, EACH SPRING BEING POSITIONED IN LINE WITH AND EXTENDING TOWARD A HAMMER, THE DISTAL END OF EACH SPRING ADAPTED TO OVERLAP A PORTION OF ITS ASSOCIATED HAMMER IN ITS LOADED POSITION; AND A SPRING RESET ASSEMBLY MOUNTED ADJACENT THE BAIL TO STOP EACH
Claim 2
Dependent Claim
103 words
FOR USE IN A HIGH SPEED PRINTER WHICH INCLUDES AN ARRAY OF ALIGNED PRINT HAMMERS WITH ONE HAMMER FOR EACH PRINT POSITION OF THE PRINTER, A HAMMER DRIVE MECHANISM FOR FIRING EACH HAMMER INDIVIDUALLY, COMPRISING: AN ELONGATED PIVOTALLY MOUNTED BAIL; AN ARRAY OF PARALLEL LEAF SPRINGS MOUNTED IN CANTILEVER FASHION ON THE BAIL THERE BEING A SPRING FOR EACH HAMMER, EACH SPRING BEING POSITIONED IN LINE WITH AND EXTENDING TOWARD A HAMMER, THE DISTAL END OF EACH SPRING ADAPTED TO OVERLAP A PORTION OF ITS ASSOCIATED HAMMER IN ITS LOADED POSITION; AND A SPRING RESET ASSEMBLY MOUNTED ADJACENT THE BAIL TO STOP EACH
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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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |