US3159710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-responsive recording having magnetically biased marking mechanism
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1959-12-23
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Granted: 1964-12-01
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Expires: 1979-12-23
Abstract
No abstract record available.
Inventors
- 👤 Leonard K Sorgi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:51
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/12; H04N1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A SIGNAL-CONTROLLED MARKING MECHANISM FOR ELECTRIC SIGNAL RECORDERS AND THE LIKE, COMPROSING A PAIR OF MEMBERS DEFINING PRESSURE JAWS OF ELEMENTAL PRESSURE AREA AND BETWEEN WHICH A RECORDING BLANK IS ARRANGED TO BE MOVED, ONE OF SAID JAWS BEING A BACKING ANVIL AND THE OTHER BEING A RECORDING BAR, A SIGNAL ENERGIZED ELECTROMAGNET WHOSE MOVABLE ARMATURE IS CONSTITUTED OF SAID BAR, PIVOTAL MEANS SUPPORTING SAID BAR FOR ADJUSTABLE TILTING PRESSURE AGAINST ONE FACE OF THE BLANK, AND MEANS SUPPORTING SAID ELECTROMAGNET ADJACENT THE OPPOSITE FACE OF THE BLANK, THE SAID BAR BEING SUPPORTED FOR SUBSTANTIALLY UNRESTRAINED TILTING MOTION TOWARDS SAID BLANK UNDER CONTROL OF THE ENERGIZATION OF SAID ELECTROMAGNET.
Claim 2
Dependent Claim
109 words
A SIGNAL-CONTROLLED MARKING MECHANISM FOR ELECTRIC SIGNAL RECORDERS AND THE LIKE, COMPROSING A PAIR OF MEMBERS DEFINING PRESSURE JAWS OF ELEMENTAL PRESSURE AREA AND BETWEEN WHICH A RECORDING BLANK IS ARRANGED TO BE MOVED, ONE OF SAID JAWS BEING A BACKING ANVIL AND THE OTHER BEING A RECORDING BAR, A SIGNAL ENERGIZED ELECTROMAGNET WHOSE MOVABLE ARMATURE IS CONSTITUTED OF SAID BAR, PIVOTAL MEANS SUPPORTING SAID BAR FOR ADJUSTABLE TILTING PRESSURE AGAINST ONE FACE OF THE BLANK, AND MEANS SUPPORTING SAID ELECTROMAGNET ADJACENT THE OPPOSITE FACE OF THE BLANK, THE SAID BAR BEING SUPPORTED FOR SUBSTANTIALLY UNRESTRAINED TILTING MOTION TOWARDS SAID BLANK UNDER CONTROL OF THE ENERGIZATION OF SAID ELECTROMAGNET.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |