US3611032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic induction apparatus for high-voltage power generation
Assignee: Sanwa Business Credit Corp
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Filing: 1969-06-16
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Granted: 1971-10-05
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Expires: 1989-06-16
Abstract
Abstract The power capability of insulating core-type transformers is greatly increased by creating additional magnetomotive force in certain secondary coils without any consequent power loss. At the same time, surge protection is provided for the primary power source without adversely affecting the auxiliary power source by using additional secondary cores with a resistive circuit isolating the high-voltage power supply from damaging highvoltage transient surges and providing artificial capacitance between the additional secondary cores and ground potential.
Inventors
- 👤 Brian Skillicorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:11
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/10; H02; H02M; H02M5/00; H02M5/02; H02M5/04; H02M5/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
175 words
Electromagnetic induction apparatus for the simultaneous generation of high-voltage electrical power together with a lower voltage auxiliary power comprising: a. a high-voltage output terminal, b. a high-voltage intermediate terminal, c. a low-voltage terminal, d. first electrical insulating means for insulating said highvoltage intermediate terminal from said low-voltage terminal, e. at least one auxiliary terminal electrically insulated from said low-voltage terminal, f. means for creating a varying magnetic field, g. a plurality of first electrical windings interposed between said high-voltage output and low-voltage terminals and coupled by said magnetic field, h. means for electrically connecting said first electrical windings to create a high voltage at said high-voltage intermediate terminal, i. at least one second electrical winding interposed between said high-voltage output and auxiliary terminal and coupled by said magnetic field, j. second insulating means for insulating said second electrical winding from said high-voltage intermediate terminal; and k. electrical impedance means connected between said highvoltage output terminal and said high-voltage intermediate terminal for providing surge protection for said high-voltage electrical power portion of said electromagnetic induction apparatus.
Claim 2
Dependent Claim
175 words
Electromagnetic induction apparatus for the simultaneous generation of high-voltage electrical power together with a lower voltage auxiliary power comprising: a. a high-voltage output terminal, b. a high-voltage intermediate terminal, c. a low-voltage terminal, d. first electrical insulating means for insulating said highvoltage intermediate terminal from said low-voltage terminal, e. at least one auxiliary terminal electrically insulated from said low-voltage terminal, f. means for creating a varying magnetic field, g. a plurality of first electrical windings interposed between said high-voltage output and low-voltage terminals and coupled by said magnetic field, h. means for electrically connecting said first electrical windings to create a high voltage at said high-voltage intermediate terminal, i. at least one second electrical winding interposed between said high-voltage output and auxiliary terminal and coupled by said magnetic field, j. second insulating means for insulating said second electrical winding from said high-voltage intermediate terminal; and k. electrical impedance means connected between said highvoltage output terminal and said high-voltage intermediate terminal for providing surge protection for said high-voltage electrical power portion of said electromagnetic induction apparatus.
Claim 3
Dependent Claim
28 words
The electrical induction apparatus as set forth in claim 1 wherein said second insulating means minimizes the capacitance between said high-voltage intermediate terminal and said high-voltage output terminal.
Claim 4
Dependent Claim
22 words
The electrical induction apparatus as set forth in claim 2 wherein said capacitance is minimized by increasing the thickness of the insulation.
Claim 5
Dependent Claim
23 words
The electrical induction apparatus as set forth in claim 2 wherein said capacitance is minimized by providing insulation having a lower dielectric constant.
Claim 6
Dependent Claim
26 words
The electrical induction apparatus as set forth in claim 1 wherein said first insulating means maximizes the capacitance between said high-voltage intermediate and said low-voltage terminal.
Claim 7
Dependent Claim
26 words
The electrical induction apparatus as set forth in claim 2 wherein said first insulating means maximizes the capacitance between said high-voltage intermediate and said low-voltage terminal.
Claim 8
Dependent Claim
73 words
The electrical induction apparatus as set forth in claim 1 wherein said apparatus further includes means for controlling the electrical field gradient by providing equipotential rings electrically connected to said first and second electrical windings and to said electrical impedance means in a predetermined manner and wherein the rings associated with said second electrical windings and said electrical impedance means have an increased surface area to maximize the capacitance to said low-voltage terminal.
Claim 9
Dependent Claim
126 words
Insulating core induction apparatus comprising: a. a high-voltage terminal, b. a low-voltage terminal, c. at least one magnetic circuit interposed between said high and low voltage terminals, d. at least one magnetic column included in said magnetic circuit, said column comprising a plurality of magnetic core segments electrically insulated one from the other, e. means for generating a varying magnetic field in said magnetic circuit, f. a plurality of electrical windings interposed between said high-voltage output and low-voltage terminals and coupled by said magnetic field and surrounding said magnetic core segments, g. means for electrically connecting said electrical windings to create a high voltage at said high-voltage terminal; and h. at least one capacitive element connected in parallel with at least one of said electricaL windings.
Claim 10
Dependent Claim
126 words
Insulating core induction apparatus comprising: a. a high-voltage terminal, b. a low-voltage terminal, c. at least one magnetic circuit interposed between said high and low voltage terminals, d. at least one magnetic column included in said magnetic circuit, said column comprising a plurality of magnetic core segments electrically insulated one from the other, e. means for generating a varying magnetic field in said magnetic circuit, f. a plurality of electrical windings interposed between said high-voltage output and low-voltage terminals and coupled by said magnetic field and surrounding said magnetic core segments, g. means for electrically connecting said electrical windings to create a high voltage at said high-voltage terminal; and h. at least one capacitive element connected in parallel with at least one of said electricaL windings.
Claim 11
Dependent Claim
108 words
The The insulating core induction apparatus as set forth in claim 8 having an auxiliary power source and wherein said apparatus further includes a. a high-voltage intermediate terminal at the same potential as said high-voltage output terminal, b. a high-voltage output terminal, c. at least one auxiliary terminal electrically insulated from said low-voltage terminal, d. at least one auxiliary electrical winding interposed between said high-voltage output and auxiliary terminal and surrounding one of said magnetic core segments; and e. electrical impedance means connected between said high-voltage output terminal and said high-voltage intermediate terminal for providing surge protection for said high-voltage electrical power portion of said electromagnetic induction apparatus.
Claim 12
Dependent Claim
41 words
The insulating core induction apparatus as set forth in claim 9 wherein said magnetic column is extended to include additional electrically insulated magnetic core segments with said electrical impedance means electrically connected in a predetermined manner between said additional core segments.
Claim 13
Dependent Claim
45 words
The insulating core induction apparatus as set forth in claim 10 wherein said apparatus further includes a. flux-equalizing electrical windings surrounding said additional electrically insulated magnetic core segments; and b. a capacitive element electrically connected respectively in parallel with each of said flux-equalizing electrical windings.
Claim 14
Dependent Claim
35 words
The insulating core induction apparatus as set forth in claim 10 wherein said additional magnetic core elements are elongated to increase the stray electrical capacitance of said additional magnetic core elements to said low-voltage terminal.
Claim 15
Dependent Claim
58 words
The insulating core induction apparatus as set forth in claim 10 wherein said apparatus further includes means for controlling the electric field gradient by providing equipotential rings electrically connected to said magnetic core segments and wherein the rings associated with said additional magnetic core segments have an increased surface area to maximize the capacitance to said low-voltage terminal.
Claim 16
Dependent Claim
22 words
The electrical induction apparatus as set forth in claim 10 wherein said capacitance is minimized by increasing the thickness of the insulation.
Claim 17
Dependent Claim
23 words
The electrical induction apparatus as set forth in claim 10 wherein said capacitance is minimized by providing insulation having a lower dielectric constant.
Claim 18
Dependent Claim
51 words
The insulating core induction apparatus as set forth in claim 10 wherein the insulation material between said core segments is selected to have a higher dielectric constant than the insulation material between said additional magnetic core segments to maximize the capacitance between the said high-voltage intermediate terminal and said low-voltage terminal.
References Cited (Backward Citations)
US3187208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |