US3471844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position responsive signal generator
Assignee: JOSEPH F SCHUGT
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Filing: 1966-07-08
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Granted: 1969-10-07
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Expires: 1986-07-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Schugt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:40
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01D5/204; G01D5/2053; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/481
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A POSITION RESPONSIVE SIGNAL GENERATOR COMPRISING: A PLURALITY OF ELECTROMAGNETIC UNITS EACH HAVING A CORE OF MAGNETIC MATERIAL AND A WINDING THEREON, SAID CORES HAVING ALIGNED PORTIONS WITH ADJACENT POLE FACES SPACED APART TO PROVIDE A NARROW AIR GAP THEREBETWEEN, SHIELDING MEANS SURROUNDING EACH OF SAID ELECTROMAGNETIC UNITS, SAID SHIELDING MEANS EXTENDING PERIPHERALLY AROUND EACH OF SAID MAGNETIC UNITS EXCEPT FOR A SINGLE LONGITUDINAL SLOT IN THE SHIELDING MEANS FOR EACH ELECTROMAGNETIC UNIT EXTENDING FOR SUBSTANTIALLY THE FULL LENGTH OF SAID ELECTROMAGNETIC UNIT, SAID SHIELDING MEANS EXTENDING OVER THE ADJACENT FACES OF SAID ELECTROMAGNETIC UNITS EXCEPT FOR ALIGNED RELATIVELY SMALL SLOTS CONDINUOUS WITH SAID LONGITUDINAL SLOTS, AND A MOVABLE MEMBER HAVING A PART THEREOF MOVABLE THROUGH SAID AIR GAP AND HAVING THEREON A PLUALITY OF RELATIVELY SMALL PORTIONS HAVING A DIFFERENT EFFECT ON FLUX TRANSMISSION THROUGH SAID GAP THAN THE REST OF SAID MEMBER SO THAT AS SAID MOVABLE MEMBER ASSUMES A POSITION IN WHICH ONE OF SAID RELATIVELY SMALL PORTIONS EXTENDS BETWEEN SAID ALIGNED SLOTS IN SAID SHIELDING MEANS, THE INDUCTIVE COUPLING BETWEEN SAID ELECTROMAGNETIC UNITS IS ABRUPTLY CHANGED.
Claim 2
Dependent Claim
180 words
A POSITION RESPONSIVE SIGNAL GENERATOR COMPRISING: A PLURALITY OF ELECTROMAGNETIC UNITS EACH HAVING A CORE OF MAGNETIC MATERIAL AND A WINDING THEREON, SAID CORES HAVING ALIGNED PORTIONS WITH ADJACENT POLE FACES SPACED APART TO PROVIDE A NARROW AIR GAP THEREBETWEEN, SHIELDING MEANS SURROUNDING EACH OF SAID ELECTROMAGNETIC UNITS, SAID SHIELDING MEANS EXTENDING PERIPHERALLY AROUND EACH OF SAID MAGNETIC UNITS EXCEPT FOR A SINGLE LONGITUDINAL SLOT IN THE SHIELDING MEANS FOR EACH ELECTROMAGNETIC UNIT EXTENDING FOR SUBSTANTIALLY THE FULL LENGTH OF SAID ELECTROMAGNETIC UNIT, SAID SHIELDING MEANS EXTENDING OVER THE ADJACENT FACES OF SAID ELECTROMAGNETIC UNITS EXCEPT FOR ALIGNED RELATIVELY SMALL SLOTS CONDINUOUS WITH SAID LONGITUDINAL SLOTS, AND A MOVABLE MEMBER HAVING A PART THEREOF MOVABLE THROUGH SAID AIR GAP AND HAVING THEREON A PLUALITY OF RELATIVELY SMALL PORTIONS HAVING A DIFFERENT EFFECT ON FLUX TRANSMISSION THROUGH SAID GAP THAN THE REST OF SAID MEMBER SO THAT AS SAID MOVABLE MEMBER ASSUMES A POSITION IN WHICH ONE OF SAID RELATIVELY SMALL PORTIONS EXTENDS BETWEEN SAID ALIGNED SLOTS IN SAID SHIELDING MEANS, THE INDUCTIVE COUPLING BETWEEN SAID ELECTROMAGNETIC UNITS IS ABRUPTLY CHANGED.
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) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |