US3148248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic transducer supporting assembly
Assignee: Unisys Corp
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Filing: 1960-08-19
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Granted: 1964-09-08
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Expires: 1980-08-19
Abstract
No abstract record available.
Inventors
- 👤 Edward M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:42
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/58; G11B5/60; G11B5/6005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
ELECTROMAGNETIC TRANSDUCER MOUNTING ASSEMBLY COMPRISING, A FRAME, A YOKE MEMBER PIVOTALLY MOUNTED ON SAID FRAME FOR MOVEMENT TOWARD AND AWAY THEREFROM, MEANS MOUNTING AN ELECTROMAGNETIC TRANSDUCER ON SAID YOKE MEMBER FOR MOVEMENT ABOUT TWO AXES SUBSTANTIALLY PERPENDICULAR TO EACH OTHER, SAID TRANSDUCER BEING PROVIDED WITH AN APERTURE EXTENDING THERETHROUGH AND HAVING AN INLET AND AN OUTLET PORTION, SAID OUTLET OPENING BEING DISPOSED ADJACENT A RECORDING MEDIUM, MEANS BIASING SAID TRANSDUCER MOUNTING MEANS AWAY FROM SAID FRAME TOWARD THE SURFACE OF SAID RECORDING MEDIUM, RETRACTING MEANS FOR SAID TRANSDUCER MOUNTING ASSEMBLY OPERABLY ASSOCIATED WITH SAID YOKE MEMBER FOR MOVING SAID TRANSDUCER TOWARD SAID FRAME AND AWAY FROM SAID RECORDING SURFACE, AND, MEANS DISPOSED ADJACENT THE INLET PORTION OF SAID APERTURE AND SPACED THEREFROM FOR APPLYING AIR UNDER PRESSURE INTO AND THROUGH SAID APERTURE, SAID LAST MEANS INCLUDING MEANS FOR ADJUSTING THE RELATIVE SPACING BETWEEN SAID AIR PRESSURE MEANS AND SAID APERTURE INLET.
Claim 2
Dependent Claim
151 words
ELECTROMAGNETIC TRANSDUCER MOUNTING ASSEMBLY COMPRISING, A FRAME, A YOKE MEMBER PIVOTALLY MOUNTED ON SAID FRAME FOR MOVEMENT TOWARD AND AWAY THEREFROM, MEANS MOUNTING AN ELECTROMAGNETIC TRANSDUCER ON SAID YOKE MEMBER FOR MOVEMENT ABOUT TWO AXES SUBSTANTIALLY PERPENDICULAR TO EACH OTHER, SAID TRANSDUCER BEING PROVIDED WITH AN APERTURE EXTENDING THERETHROUGH AND HAVING AN INLET AND AN OUTLET PORTION, SAID OUTLET OPENING BEING DISPOSED ADJACENT A RECORDING MEDIUM, MEANS BIASING SAID TRANSDUCER MOUNTING MEANS AWAY FROM SAID FRAME TOWARD THE SURFACE OF SAID RECORDING MEDIUM, RETRACTING MEANS FOR SAID TRANSDUCER MOUNTING ASSEMBLY OPERABLY ASSOCIATED WITH SAID YOKE MEMBER FOR MOVING SAID TRANSDUCER TOWARD SAID FRAME AND AWAY FROM SAID RECORDING SURFACE, AND, MEANS DISPOSED ADJACENT THE INLET PORTION OF SAID APERTURE AND SPACED THEREFROM FOR APPLYING AIR UNDER PRESSURE INTO AND THROUGH SAID APERTURE, SAID LAST MEANS INCLUDING MEANS FOR ADJUSTING THE RELATIVE SPACING BETWEEN SAID AIR PRESSURE MEANS AND SAID APERTURE INLET.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |