US3196783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printer magnet core
Assignee: Potter Instrument Co Inc
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Filing: 1963-05-10
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Granted: 1965-07-27
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Gross Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:30
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/26; B41J9/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A MAGNETIC CORE FOR A HIGH SPEED PRINTING HAMMER WHICH COMPRISES, A PRINTING HAMMER PIVOTABLY MOUNTED FOR ROTATION ABOUT AN AXIS, SAID PRINTING HAMMER HAVING AN ARMATURE AT ONE END THEREOF AND A PRINTING HAMMER HEAD AT THE OTHER END THEREOF, AN ACTUATING COIL ASSEMBLY POSITIONED ADJACENT SAID ARMATURE, SAID COIL ASSEMBLY COMPRISING AN E-SHAPED CORE FORMED OF A MAGNETIZABLE MATERIAL AND HAVING A CENTRAL LEG POSITIONED BETWEEN A FIRST AND SECOND OUTER LEG, END SURFACES FORMED ON EACH OF SAID FIRST AND SECOND LEGS AND SAID CENTRAL LEG FORMING AIR GAPS WITH SAID ARMATURE OF SAID HIGH SPEED PRINTING HAMMER, AND AN EXTENSION FORMED OF CORE MATERIAL EXTENDING FROM THE OUTERMOST EDGES OF EACH OF THE OUTER LEGS BEYOND THE TERMINATION OF SAID CENTRAL LEG TO PREVENT STRAY FIELDS FROM ADVERSELY AFFECTING AN ADJACENT, SIMILAR MAGNETIC CORE.
Claim 2
Dependent Claim
138 words
A MAGNETIC CORE FOR A HIGH SPEED PRINTING HAMMER WHICH COMPRISES, A PRINTING HAMMER PIVOTABLY MOUNTED FOR ROTATION ABOUT AN AXIS, SAID PRINTING HAMMER HAVING AN ARMATURE AT ONE END THEREOF AND A PRINTING HAMMER HEAD AT THE OTHER END THEREOF, AN ACTUATING COIL ASSEMBLY POSITIONED ADJACENT SAID ARMATURE, SAID COIL ASSEMBLY COMPRISING AN E-SHAPED CORE FORMED OF A MAGNETIZABLE MATERIAL AND HAVING A CENTRAL LEG POSITIONED BETWEEN A FIRST AND SECOND OUTER LEG, END SURFACES FORMED ON EACH OF SAID FIRST AND SECOND LEGS AND SAID CENTRAL LEG FORMING AIR GAPS WITH SAID ARMATURE OF SAID HIGH SPEED PRINTING HAMMER, AND AN EXTENSION FORMED OF CORE MATERIAL EXTENDING FROM THE OUTERMOST EDGES OF EACH OF THE OUTER LEGS BEYOND THE TERMINATION OF SAID CENTRAL LEG TO PREVENT STRAY FIELDS FROM ADVERSELY AFFECTING AN ADJACENT, SIMILAR MAGNETIC CORE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |