US3175486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed print hammer
Assignee: International Business Machines Corp
•
Filing: 1961-05-03
•
Granted: 1965-03-30
•
Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur S Athens
- 👤 Roland D Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:46
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/02; B41J9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A HIGH SPEED PRINTER, AN ARRAY OF PARALLEL PRINT HAMMERS MOUNTED FOR PIVOTAL MOVEMENT ABOUT A COMMON TRANSVERSE AXIS AND ADAPTED FOR SELECTIVE FIRING SEQUENTIALLY FROM ONE END OF THE ARRAY TO THE OTHER; AN INERTIAL TAB ON EACH HAMMER SPACED FROM THE PIVOTAL AXIS, THE MASS OF THE VARIOUS TABS BEING VARIED IN A UNIFORM DIMINISHING PROGRESSION FROM ONE END OF THE HAMMER ARRAY TO THE OTHER.
Claim 2
Dependent Claim
69 words
IN A HIGH SPEED PRINTER, AN ARRAY OF PARALLEL PRINT HAMMERS MOUNTED FOR PIVOTAL MOVEMENT ABOUT A COMMON TRANSVERSE AXIS AND ADAPTED FOR SELECTIVE FIRING SEQUENTIALLY FROM ONE END OF THE ARRAY TO THE OTHER; AN INERTIAL TAB ON EACH HAMMER SPACED FROM THE PIVOTAL AXIS, THE MASS OF THE VARIOUS TABS BEING VARIED IN A UNIFORM DIMINISHING PROGRESSION FROM ONE END OF THE HAMMER ARRAY TO THE OTHER.
References Cited (Backward Citations)
US1069275A
Cited
US1243954A
Cited
US1908140A
Cited
US2353057A
Cited
US2616366A
Cited
US2686470A
Cited
US2874634A
Cited
US3012499A
Cited
US2997632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |