US3359893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offset duplicator
Assignee: Individual
•
Filing: 1963-10-25
•
Granted: 1967-12-26
•
Expires: 1983-10-25
Abstract
No abstract record available.
Inventors
- 👤 Zahn Hermann Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:46
CPC Classifications
B; B41; B41F; B41F31/00; B41F31/30; B41F31/32; B41F31/38; B41F31/301; B41L; B41L39/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
AN OFFSET DUPLICATOR COMPRISING A MASTER CYLINDER PROVIDED TO CARRY A FOIL, A RUBBER BLANKET CYLINDER TOUCHING THE SAID MASTER CYLINDER, AN IMPRESSION CYLINDER, SHEETS TO BE PRINTED PASSING BETWEEN THE SAID RUBBER BLANKET CYLINDER AND THE SAID IMPRESSION CYLINDER, AT LEAST TWO INK FORM ROLLERS HAVING CYLINDRICAL PARTS TRANSFERRING INK TO THE SAID MASTER CYLINDER, SAID CYLINDRICAL PARTS OF ALL THE SAID INK FORM ROLLERS HAVING A DIFFERENT LENGTH, ALL THE SAID INK FORM ROLLERS HAVING SHAFTS AND BEING TURNABLE AROUND SAID SHAFTS, ELECTROMAGNETS ENGAGING THE ENDS OF SAID SHAFTS TO PRESS SAID INK FORM ROLLERS AGAINST SAID MASTER CYLINDER OR TO RELEASE SAID INK FORM ROLLERS FROM SAID MASTER CYLINDER, AN ELECTRICAL CONTROL MECHANISM ACTUATED BY ONE OF THE SAID CYLINDERS, SAID CONTROL MECHANISM GIVING A VOLTAGE TO THE SAID ELECTROMAGNETS IN DEPENDANCE TO THE ANGLE OF ROTATION OF ONE OF SAID CYLINDERS.
Claim 2
Dependent Claim
145 words
AN OFFSET DUPLICATOR COMPRISING A MASTER CYLINDER PROVIDED TO CARRY A FOIL, A RUBBER BLANKET CYLINDER TOUCHING THE SAID MASTER CYLINDER, AN IMPRESSION CYLINDER, SHEETS TO BE PRINTED PASSING BETWEEN THE SAID RUBBER BLANKET CYLINDER AND THE SAID IMPRESSION CYLINDER, AT LEAST TWO INK FORM ROLLERS HAVING CYLINDRICAL PARTS TRANSFERRING INK TO THE SAID MASTER CYLINDER, SAID CYLINDRICAL PARTS OF ALL THE SAID INK FORM ROLLERS HAVING A DIFFERENT LENGTH, ALL THE SAID INK FORM ROLLERS HAVING SHAFTS AND BEING TURNABLE AROUND SAID SHAFTS, ELECTROMAGNETS ENGAGING THE ENDS OF SAID SHAFTS TO PRESS SAID INK FORM ROLLERS AGAINST SAID MASTER CYLINDER OR TO RELEASE SAID INK FORM ROLLERS FROM SAID MASTER CYLINDER, AN ELECTRICAL CONTROL MECHANISM ACTUATED BY ONE OF THE SAID CYLINDERS, SAID CONTROL MECHANISM GIVING A VOLTAGE TO THE SAID ELECTROMAGNETS IN DEPENDANCE TO THE ANGLE OF ROTATION OF ONE OF SAID CYLINDERS.
References Cited (Backward Citations)
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Cited
US2893310A
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US2931294A
Cited
US2997949A
Cited
US2967475A
Cited
US3083637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |