Patent US3757201A successfully refreshed from Google Patents.
US3757201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric power controlling or regulating system
Assignee: Individual
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Filing: 1972-05-19
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Granted: 1973-09-04
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Expires: 1992-05-19
Abstract
Abstract An electric power controlling or regulating system comprises a transformer main magnet core portion which forms a first loop opening, a magnetic control core portion forming a second loop opening and magnetically contacting and merging with said main core. The second opening is outside of and separate from the main core opening. Main primary and secondary windings are disposed on the main core portion and pass through the first opening. Control windings are disposed on the control core portion and pass through the second opening while staying free of the first opening. The magnetic flux interlinking the primary and secondary windings on the main core portion is controllable by varying the excitation of the control windings. The second core portion extends either in a plane normal to that of the first loop opening or it extends about the main core portion in the same plane as the latter and has larger dimensions so that the two loop openings are substantially in the same plane.
Inventors
- 👤 L Cornwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:20
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/34; G05F1/38; G05F1/14; H; H01; H01F; H01F29/00; H01F29/14; H01F29/143; H01F29/146
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
159 words
Electric power controlling or regulating transformer system comprising a gapless main magnet core which forms a loop opening, a control core forming another loop opening and magnetically contacting and merging with said main core, said opening of said control core being outside of and separate from said main-core opening, primary and secondary windings disposed on said maincore and passing through said main-core opening, and control coil means disposed on said control core and passing through said other opening so as to stay free of said main-core opening, the magnetic flux interlinking said primary and secondary windings on said main-core being controllable by varying the excitation of said control coil means, said main core having two components conjointly forming said main-core loop opening, said core portion extending in a plane normal to that of said main-core loop opening and being interposed between said two main-core components with said other loop opening extending away from said main core in said plane.
Claim 2
Dependent Claim
159 words
Electric power controlling or regulating transformer system comprising a gapless main magnet core which forms a loop opening, a control core forming another loop opening and magnetically contacting and merging with said main core, said opening of said control core being outside of and separate from said main-core opening, primary and secondary windings disposed on said maincore and passing through said main-core opening, and control coil means disposed on said control core and passing through said other opening so as to stay free of said main-core opening, the magnetic flux interlinking said primary and secondary windings on said main-core being controllable by varying the excitation of said control coil means, said main core having two components conjointly forming said main-core loop opening, said core portion extending in a plane normal to that of said main-core loop opening and being interposed between said two main-core components with said other loop opening extending away from said main core in said plane.
Claim 3
Dependent Claim
69 words
In a system according to claim 1, said main core being composed of two substantially U-shaped components whose bights face each other, and said control core comprising two generally O-shaped members of which each is interposed between respective adjacent legs of said main core and has its loop opening extending in a direction away from said main core, said control coil means comprising respective coils on said two members.
Claim 4
Dependent Claim
44 words
In a system according to claim 1, said control coil means comprising at least one pair of coils and a directcurrent control circuit interconnecting said coils in mutually bucking relation so that the resultant alternating voltage induced in said coil means is substantially zero.
Claim 5
Dependent Claim
33 words
A system according to claim 1 comprising a control circuit interconnecting said control coil means so as to be traversed by induced alternating current, and current control means connected in said control circuit.
Claim 6
Dependent Claim
45 words
In a system according to claim 1, said control coil means comprising a plurality of control coils, a control circuit interconnecting said coils in mutually boosting relation so as to be traversed by induced alternating current, and current control means connected in said control circuit.
Claim 7
Dependent Claim
23 words
In a system according to claim 4, said control means comprising a diode whereby said control circuit is energized by unidirectional half-wave current.
Claim 8
Dependent Claim
24 words
A system according to claim 4, comprising condition-responsive sensing means connected to said control means for varying the excitation of said control coil means.
Claim 9
Dependent Claim
32 words
In a system according to claim 4, said control means comprising a thyristor and sensing means connected to said thyristor for controlling it to vary the excitation of said control coil means.
Claim 10
Dependent Claim
89 words
In a system according to claim 1, said main core being composed of two three-legged components whose leg ends face each other so as to form two main loop openings, said control core forming two loop openings and being interposed between each two mutually facing legs of said three-legged components, said primary and secondary windings passing through said two main loop openings, and said control coil means comprising at least two coils passing through said respective loop openings of said control cores at localities outside of said main openings.
Claim 11
Dependent Claim
44 words
In a system according to claim 9, said control core comprising two generally O-shaped parts interposed side by side between the two center legs of said main core and interposed between each of the two mutually adjacent outer legs of said two main-core components.
Claim 12
Dependent Claim
30 words
In a system according to claim 9, said control means comprising four control coils of which each two extend through each of the respective two openings of said control core.
Claim 13
Dependent Claim
31 words
In a system according to claim 10, said control coil means comprising at least one control coil surrounding both of the two mutually adjacent legs of said respective generally O-shaped parts.
Claim 14
Dependent Claim
25 words
In a system according to claim 1, said primary and secondary windings being mounted on opposite sides of and in proximity to said control core.
Claim 15
Dependent Claim
57 words
In a system according to claim 1, said secondary winding being mounted on one side of said control core, and said primary winding having a major number of turns mounted on the other side of said control core and a minor number of turns mounted next to said secondary on said one side of said control core.
Claim 16
Dependent Claim
38 words
In a system according to claim 1, said control core extending about said main core in the same plane as the latter and having larger dimensions in said plane, said two loop openings being in said same plane.
Claim 17
Dependent Claim
48 words
In a system according to claim 15, said control core merging magnetically with said main core portion and extending on at least one side beyond the confines of said main core, said control-core opening being located at said same side between said main core and said control core.
Claim 18
Dependent Claim
39 words
In a system according to claim 16, at least one of said primary and secondary windings extending about said main core portion through both of said openings, and said control coil means passing only through said control core opening.
Claim 19
Dependent Claim
46 words
In a system according to claim 16, said primary winding having a predominant number of turns passing through said main-core opening only and having a smaller number of turns passing through both of said openings, and said control coil means passing only through said control-core opening.
Claim 20
Dependent Claim
36 words
In a system according to claim 18, said control coil means being formed of a single coil and having a coil circuit with controllable rectIfier means for varying the amount of excitation induced in said coil.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |