Patent US3715099A successfully refreshed from Google Patents.
Patent US3299218A successfully refreshed from Google Patents.
US3299218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic head having internal printed circuit connection means
Assignee: Honeywell Inc
•
Filing: 1961-10-30
•
Granted: 1967-01-17
•
Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 Carl W Wagenhals
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:12
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/17; G11B5/10; G11B5/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
262 words
A MAGNETIC HEAD COMPRISING A MAGNETIC CORE STRUCTURE HAVING A GAP THEREIN FORMED BY A NON-MAGNETIC SPACER, A MAGNETIC COIL ON SAID CORE STRUCTURE IN A TRANSDUCING RELATIONSHIP WITH SAID CORE STRUCTURE, A HOLLOW CYLINDRICAL SHELL HAVING AN INTERNAL DIAMETER AND A FIRST AND A SECOND END, SAID SHELL BEING ARRANGED TO SUPPORT SAID CORE STRUCTURE AND SAID COIL THEREIN WITH SAID GAP AT SAID FIRST END OF SAID SHELL, AN ANNULAR END CAP FOR SAID SHELL, SAID END CAP BEING SUPPORTED ON SAID FIRST END, MAGNETIC SHIELDS SUPPORTED WITHIN THE SPACE DEFINED BY THE END CAP ON BOTH SIDES OF SAID CORE STRUCTURE, NON-MAGNETIC SPACERS ALSO SUPPORTED WITHIN THE SPACE DEFINED BY THE END CAP, SAID CORE STRUCTURE, SAID SHIELDS, AND SAID SPACERS BEING ARRANGED TO FORM A SMOOTH SURFACE WITH SAID END CAP ACROSS SAID FIRST END OF SAID SHELL, A PRINTED CIRCUIT BOARD ARRANGED IN CLOSELY FITTING RELATIONSHIP WITHIN SAID INTERNAL DIAMETER OF SAID CYLINDRICAL SHELL, MEANS FOR RETAINING SAID BOARD WITHIN SAID SHELL, SAID BOARD HAVING PRINTED WIRING THEREON CORRESPONDING TO DESIRED ELECTRICAL CONNECTIONS FOR SAID COIL, FIRST MEANS ELECTRICALLY CONNECTING SAID PRINTED CIRCUIT BOARD TO SAID COIL, MAGNETIC HEAD CONNECTIONS MEANS, SAID CONNECTIONS MEANS BEING MOUNTED IN SAID SECOND END OF SAID SHELL, AND SECOND MEANS ELECTRICALLY CONNECTING SAID PRINTED CIRCUIT BOARD TO SAID CONNECTION MEANS WHEREBY SAID PRINTED WIRING ON SAID BOARD IS EFFECTIVE TO PROVIDE A SIGNAL PATH BETWEEN SAID FIRST AND SAID SECOND MEANS AND SAID PRINTED CIRCUIT BOARD IS FURTHER EFFECTIVE TO ISOLATE FORCES ASSOCIATED WITH SAID SECOND MEANS FROM SAID FIRST MEANS.
Claim 2
Dependent Claim
262 words
A MAGNETIC HEAD COMPRISING A MAGNETIC CORE STRUCTURE HAVING A GAP THEREIN FORMED BY A NON-MAGNETIC SPACER, A MAGNETIC COIL ON SAID CORE STRUCTURE IN A TRANSDUCING RELATIONSHIP WITH SAID CORE STRUCTURE, A HOLLOW CYLINDRICAL SHELL HAVING AN INTERNAL DIAMETER AND A FIRST AND A SECOND END, SAID SHELL BEING ARRANGED TO SUPPORT SAID CORE STRUCTURE AND SAID COIL THEREIN WITH SAID GAP AT SAID FIRST END OF SAID SHELL, AN ANNULAR END CAP FOR SAID SHELL, SAID END CAP BEING SUPPORTED ON SAID FIRST END, MAGNETIC SHIELDS SUPPORTED WITHIN THE SPACE DEFINED BY THE END CAP ON BOTH SIDES OF SAID CORE STRUCTURE, NON-MAGNETIC SPACERS ALSO SUPPORTED WITHIN THE SPACE DEFINED BY THE END CAP, SAID CORE STRUCTURE, SAID SHIELDS, AND SAID SPACERS BEING ARRANGED TO FORM A SMOOTH SURFACE WITH SAID END CAP ACROSS SAID FIRST END OF SAID SHELL, A PRINTED CIRCUIT BOARD ARRANGED IN CLOSELY FITTING RELATIONSHIP WITHIN SAID INTERNAL DIAMETER OF SAID CYLINDRICAL SHELL, MEANS FOR RETAINING SAID BOARD WITHIN SAID SHELL, SAID BOARD HAVING PRINTED WIRING THEREON CORRESPONDING TO DESIRED ELECTRICAL CONNECTIONS FOR SAID COIL, FIRST MEANS ELECTRICALLY CONNECTING SAID PRINTED CIRCUIT BOARD TO SAID COIL, MAGNETIC HEAD CONNECTIONS MEANS, SAID CONNECTIONS MEANS BEING MOUNTED IN SAID SECOND END OF SAID SHELL, AND SECOND MEANS ELECTRICALLY CONNECTING SAID PRINTED CIRCUIT BOARD TO SAID CONNECTION MEANS WHEREBY SAID PRINTED WIRING ON SAID BOARD IS EFFECTIVE TO PROVIDE A SIGNAL PATH BETWEEN SAID FIRST AND SAID SECOND MEANS AND SAID PRINTED CIRCUIT BOARD IS FURTHER EFFECTIVE TO ISOLATE FORCES ASSOCIATED WITH SAID SECOND MEANS FROM SAID FIRST MEANS.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |