US3585493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage-regulating device
Assignee: Chicago Condenser Corp
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Filing: 1969-05-09
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Granted: 1971-06-15
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Expires: 1989-05-09
Abstract
Abstract A voltage-regulating transformer having coil connected in series with a condenser to form a resonant circuit at the frequency of the source potential, and a ferromagnetic core having one or more magnetic gaps in the flux path of the coil. In different embodiments, the resonant input circuit utilizes separate condensers coupling the source to opposite ends of the coil, and a shunt capacitor across the coil. In separate embodiments, power is taken from the transformer by connection across the coil and by magnetic coupling through a second coil. The voltageregulating device has the advantage of producing an output potential substantially more stable than the source potential, an output potential substantially sinusoidal in waveform and an output which collapses on overload to inherently protect the device against overloads.
Inventors
- 👤 Herbert Moerlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:36
CPC Classifications
G; G05; G05F; G05F3/00; G05F3/02; G05F3/04; G05F3/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
148 words
A voltage-regulating device comprising a transformer having a core with a magnetic conductivity at least equal to that of iron, the core having a coil-traversing portion and a yoke extending from the coil-traversing portion, the core forming a magnetic circuit including in series the coil-traversing portion, the yoke and a magnetic gap, a coil disposed about the coil-traversing portion of the core, means to connect the coil to a source of alternating current of a fixed frequency including a capacitor connected in series with the coil and also in series with the source, the coil and capacitor forming a series-resonant circuit at the frequency of the source, and the resistive components of the coil and capacitor at resonance being small compared to the reactive components thereof, and means to couple a load to the voltage of the coil while obviating any coupling to the voltage of the capacitor.
Claim 2
Dependent Claim
148 words
A voltage-regulating device comprising a transformer having a core with a magnetic conductivity at least equal to that of iron, the core having a coil-traversing portion and a yoke extending from the coil-traversing portion, the core forming a magnetic circuit including in series the coil-traversing portion, the yoke and a magnetic gap, a coil disposed about the coil-traversing portion of the core, means to connect the coil to a source of alternating current of a fixed frequency including a capacitor connected in series with the coil and also in series with the source, the coil and capacitor forming a series-resonant circuit at the frequency of the source, and the resistive components of the coil and capacitor at resonance being small compared to the reactive components thereof, and means to couple a load to the voltage of the coil while obviating any coupling to the voltage of the capacitor.
Claim 3
Dependent Claim
22 words
A voltage-regulating device comprising the combination of claim 1 wherein the core provides a plurality of magnetic gaps in the magnetic circuit.
Claim 4
Dependent Claim
79 words
A voltage-regulating device comprising the combination of claim 1 wherein the coil-traversing portion has an outwardly extending bar portion on one side of the coil, and the yoke is disposed on the opposite side of the coil and has two legs generally parallel to and spaced from the coil-traversing portion of the core and extending toward the bar portion, whereby the magnetic circuits are formed through the coil-traversing portion, bar portion and each of the legs of the yoke.
Claim 5
Dependent Claim
24 words
A voltage-regulating device comprising the combination of claim 3 wherein one gap is disposed between the coil-traversing portion of the core and the yoke.
Claim 6
Dependent Claim
27 words
A voltage-regulating device comprising the combination of claim 3 wherein one gap is disposed between each leg of the yoke and the bar portion of the core.
Claim 7
Dependent Claim
30 words
A voltage-regulating device comprising the combination of claim 1 wherein two capacitors are connected in series with the coil and the source, one capacitor at each end of the coil.
Claim 8
Dependent Claim
20 words
A voltage-regulating device comprising the combination of claim 1 in combination with a capacitor connected in shunt with the coil.
Claim 9
Dependent Claim
27 words
A voltage-regulating device comprising the combination of claim 1 wherein the means to couple a load to the coil comprises connections to opposite ends of the coil.
Claim 10
Dependent Claim
37 words
A voltage-regulating device comprising the combination of claim 1 wherein the means to couple a load to the coil comprises a second coil on the coil-traversing portion of the core and magnetically coupled to said first-mentioned coil.
Claim 11
Dependent Claim
22 words
A voltage-regulating device comprising the combination of claim 9 in combination with a capacitor electrically connected in shunt with the second coil.
References Cited (Backward Citations)
US1599570A
Cited
US1963243A
Cited
DE579122C
Cited
US2825024A
Cited
US3112439A
Cited
US3286159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |