US3227816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer positioning apparatus
Assignee: Ampex Corp
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Filing: 1962-12-18
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Granted: 1966-01-04
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Expires: 1982-12-18
Abstract
No abstract record available.
Inventors
- 👤 Jack K Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:52
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/62; G11B15/18; G11B15/26; G11B15/28; G11B15/61; G11B5/00; G11B5/48; G11B5/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN AN APPARATUS FOR MOUNTING A TRANSDUCING HEAD FOR ENGAGEMENT WITH A PREDETERMINED SURFACE OF A RECORD MEDIUM THAT IS MOVING IN A PREDETERMINED PLANE TANGENT TO SAID SURFACE AT THE ZONE OF SAID ENGAGEMENT, THE IMPROVEMENT COMPRISING: A BASE MOUNTED TO INTERSECT SAID PLANE IN WHICH SAID MEDIUM IS MOVING IN THE ZONE OF SAID ENGAGEMENT; AND AN ELEMENT EXTENDING IN SAID PLANE DIRECTLY FROM SAID BASE TO SAID HEAD FOR RESTRAINING SAID HEAD AGAINST MOVEMENT IN SAID PLANE, SAID ELEMENT BEING DISPLACEABLE TO PERMIT MOVEMENT OF SAID HEAD TOWARD AND AWAY FROM SAID MEDIUM; WHEREBY THE POSITION OF SAID HEAD IN SAID PLANE IS SOLIDLY MAINTAINED DESPITE VARIATIONS IN THE COEFFICIENT OF FRICTION BETWEEN SAID HEAD AND MEDIUM.
Claim 2
Dependent Claim
120 words
IN AN APPARATUS FOR MOUNTING A TRANSDUCING HEAD FOR ENGAGEMENT WITH A PREDETERMINED SURFACE OF A RECORD MEDIUM THAT IS MOVING IN A PREDETERMINED PLANE TANGENT TO SAID SURFACE AT THE ZONE OF SAID ENGAGEMENT, THE IMPROVEMENT COMPRISING: A BASE MOUNTED TO INTERSECT SAID PLANE IN WHICH SAID MEDIUM IS MOVING IN THE ZONE OF SAID ENGAGEMENT; AND AN ELEMENT EXTENDING IN SAID PLANE DIRECTLY FROM SAID BASE TO SAID HEAD FOR RESTRAINING SAID HEAD AGAINST MOVEMENT IN SAID PLANE, SAID ELEMENT BEING DISPLACEABLE TO PERMIT MOVEMENT OF SAID HEAD TOWARD AND AWAY FROM SAID MEDIUM; WHEREBY THE POSITION OF SAID HEAD IN SAID PLANE IS SOLIDLY MAINTAINED DESPITE VARIATIONS IN THE COEFFICIENT OF FRICTION BETWEEN SAID HEAD AND MEDIUM.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |