US3138428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helix and pressure bar recorder
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1960-08-11
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Granted: 1964-06-23
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Expires: 1980-08-11
Abstract
No abstract record available.
Inventors
- 👤 Martin J Kutik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:08
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/12; H04N1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A RECORDER FOR MARKING A RECORDING BLANK, COMPRISING MEANS TO SUBJECT THE RECORDING BLANK AT THE RECORDING POINT TO A SIGNAL-CONTROLLED PRESSURE TO MARK THE BLANK CORRESPONDINGLY, THE SAID MEANS INCLUDING A BACKING MEMBER FOR THE BLANK, AN ELONGATED MOVABLE RECORDING MEMBER HAVING AN EDGE WHICH EXTENDS SUBSTANTIALLY ACROSS THE WIDTH OF SAID BLANK AND IS ARRANGED TO EXERT PRESSURE ON SAID BLANK, ELECTROMAGNETIC MEANS HAVING A PAIR OF GAPPED MAGNETIZABLE CORES IN MAGNETOMOTIVE GAPPED RELATION WITH THE END PORTIONS OF SAID MEMBER, AND SIGNALCONTROLLED WINDINGS FOR SAID CORES TO CONTROL THE PRESSURE OF SAID MEMBER ON SAID BLANK.
Claim 2
Dependent Claim
99 words
A RECORDER FOR MARKING A RECORDING BLANK, COMPRISING MEANS TO SUBJECT THE RECORDING BLANK AT THE RECORDING POINT TO A SIGNAL-CONTROLLED PRESSURE TO MARK THE BLANK CORRESPONDINGLY, THE SAID MEANS INCLUDING A BACKING MEMBER FOR THE BLANK, AN ELONGATED MOVABLE RECORDING MEMBER HAVING AN EDGE WHICH EXTENDS SUBSTANTIALLY ACROSS THE WIDTH OF SAID BLANK AND IS ARRANGED TO EXERT PRESSURE ON SAID BLANK, ELECTROMAGNETIC MEANS HAVING A PAIR OF GAPPED MAGNETIZABLE CORES IN MAGNETOMOTIVE GAPPED RELATION WITH THE END PORTIONS OF SAID MEMBER, AND SIGNALCONTROLLED WINDINGS FOR SAID CORES TO CONTROL THE PRESSURE OF SAID MEMBER ON SAID BLANK.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |