US3193810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Head positioning mechanism
Assignee: Unisys Corp
•
Filing: 1959-06-02
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Granted: 1965-07-06
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Expires: 1979-06-02
Abstract
No abstract record available.
Inventors
- 👤 Donald K Sampson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:06
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/58; G11B5/60; G11B5/6005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN RECORDING APPARATUS HAVING A TRANSDUCER MEMBER AND A STORAGE MEMBER MOVABLE RELATIVE THERETO FOR EFFECTING A FLUID FORCE SEPARATING SAID MEMBERS, THE IMPROVEMENT COMPRISING: MEANS FOR PERMITTING TILT OF SAID TRANSDUCER MEMBER RELATIVE TO SAID STORAGE MEMBER; AND POSITIONING MEANS FOR LOCATING AND MAINTAINING SAID MEMBERS IN A PREDETERMINED SEPARATION RELATIONSHIP AGAINST SAID SEPARATING FLUID FORCE; SAID POSITIONING MEANS COMPRISING FLUID-PRESSURE MEANS OPERATIVE TO PRODUCE A FORCE ACTING UPON SAID TRANSDUCER MEMBER AGAINST SAID SEPARATING FORCE.
Claim 2
Dependent Claim
77 words
IN RECORDING APPARATUS HAVING A TRANSDUCER MEMBER AND A STORAGE MEMBER MOVABLE RELATIVE THERETO FOR EFFECTING A FLUID FORCE SEPARATING SAID MEMBERS, THE IMPROVEMENT COMPRISING: MEANS FOR PERMITTING TILT OF SAID TRANSDUCER MEMBER RELATIVE TO SAID STORAGE MEMBER; AND POSITIONING MEANS FOR LOCATING AND MAINTAINING SAID MEMBERS IN A PREDETERMINED SEPARATION RELATIONSHIP AGAINST SAID SEPARATING FLUID FORCE; SAID POSITIONING MEANS COMPRISING FLUID-PRESSURE MEANS OPERATIVE TO PRODUCE A FORCE ACTING UPON SAID TRANSDUCER MEMBER AGAINST SAID SEPARATING FORCE.
References Cited (Backward Citations)
US2262288A
Cited
GB764434A
Cited
US2862781A
Cited
DE1020803B
Cited
US2937240A
Cited
US2972738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |