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Patent US3688232A successfully refreshed from Google Patents.
US3688232A
Expired / Lapsed
US
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Capacitive inductive winding
Assignee: Individual
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Filing: 1971-02-16
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Granted: 1972-08-29
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Expires: 1991-02-16
Abstract
Abstract An improved capacitive inductive winding is disclosed for use with devices requiring an inductance and a series or shunt capacitance. The disclosed invention is a high reactance winding having a nearly uniform current density within the conductive foils, and having a substantially increased capacitance and voltampere capacity over the prior art. The invention is suitable for use with devices requiring a high starting voltage and a constant wattage operation such as gaseous discharge devices. The invention is also applicable for use with voltage and wattage regulators, ballasts and ferro-resonant transformers. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.
Inventors
- 👤 Gabor Szatmari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:57
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2847; H01F38/00; H01F38/08; H01F38/10
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
76 words
A capacitive inductive winding, comprising in combination, first and second foil means each having first and second end sections, means establishing a larger current carrying ability at said first end sections than at said second end sections of each of said first and second foil means, and graded capacitance means establishing a larger capacitance between said first end sections of said first and second foil means than between said second end sections of said foil means.
Claim 2
Dependent Claim
76 words
A capacitive inductive winding, comprising in combination, first and second foil means each having first and second end sections, means establishing a larger current carrying ability at said first end sections than at said second end sections of each of said first and second foil means, and graded capacitance means establishing a larger capacitance between said first end sections of said first and second foil means than between said second end sections of said foil means.
Claim 3
Dependent Claim
40 words
A capacitive inductive winding as set forth in claim 1, wherein current at a given instant flows into said first end section of said first foil means and flows out of said first end section of said second foil means.
Claim 4
Dependent Claim
46 words
A capacitive inductive winding as set forth in claim 1, wherein said means establishing a larger current carrying ability at said first end sections than at said second end sections includes a larger cross-sectional area at said first end sections than at said second end sections.
Claim 5
Dependent Claim
34 words
A capacitive inductive winding as set forth in claim 1, wherein said graded capacitance means includes means establishing a larger effective surface area at said first end sections than at said second end sections.
Claim 6
Dependent Claim
27 words
A capacitive inductive winding as set forth in claim 1, wherein said first and second foil means are interleaved when said foils are rolled into a winding.
Claim 7
Dependent Claim
22 words
A capacitive inductive winding as set forth in claim 1, wherein said first and second foil means are separated by dielectric means.
Claim 8
Dependent Claim
23 words
A capacitive inductive winding as set forth in claim 1, wherein each of said first and second foil means has only three sections.
Claim 9
Dependent Claim
26 words
A capacitive inductive winding as set forth in claim 1, wherein said first and second foil means are each composed of a plurality of series sections.
Claim 10
Dependent Claim
203 words
A capacitive inductive winding as set forth in claim 1, wherein said foil means has a total of 2S sections and wherein S is any positive integer, said first foil means composed of S odd numbered integer sections, said second foil means composed of S even numbered integer sections, said odd and even numbered integer sections one and two having S coils connected in parallel and being said first end sections of said first and second foil means, respectively, said odd and even numbered integer sections three and four having (S-1) coils connected in parallel, the odd numbered integer sections being defined by the expression (2N-1) having (S+1-N) coils connected in parallel where N is a positive integer not greater than S, the even numbered integer sections being defined by the expression (2N) having (S+1-N) coils connected in parallel, said odd numbered integer section (2S-1) having a coil and being said second end section of said first foil, said even numbered integer sections (2S) having a coil and being said second end section of said second foil, and said graded capacitance means includes interwoven sections having an equal number of coils connected in parallel and having said first and second foil means interleaved.
Claim 11
Dependent Claim
33 words
A capacitive inductive winding as set forth in claim 4, wherein said means establishing a larger effective surface area includes said first end sections being composed of only two coils connected in parallel.
Claim 12
Dependent Claim
21 words
A capacitive inductive winding as set forth in claim 4, wherein said graded capacitance means includes interwoven coils and interleaved foils.
Claim 13
Dependent Claim
37 words
A capacitive inductive winding as set forth in claim 6, wherein said graded capacitance means includes means increasing the ratio of K,/D where K is the dielectric constant and D is the thickness of said dielectric means.
Claim 14
Dependent Claim
46 words
A capacitive inductive winding as set forth in claim 6, wherein said graded capacitance means includes means increasing the ratio of K/D, where K is the dielectric constant and D is the thickness of said dielectric means and means establishing a larger effective surface area A.
Claim 15
Dependent Claim
29 words
A capacitive inductive winding as set forth in claim 6, wherein said graded capacitance means includes means establishing a larger effective surface area and means changing said dielectric means.
Claim 16
Dependent Claim
24 words
A capacitive inductive winding as set forth in claim 8, wherein said first and second foil means are composed of coils connected in parallel.
Claim 17
Dependent Claim
39 words
A capacitive inductive winding as set forth in claim 8, including means producing a variable magnetic flux, and said first and second foil means being located within said varying magnetic flux to induce a voltage into said foil means.
Claim 18
Dependent Claim
50 words
A capacitive inductive winding as set forth in claim 14, wherein said means establishing a larger effective surface area includes sections composed of coils connected in parallel, and said means changing said dielectric means includes a thinner dielectric means separating said first end sections than separating said second end sections.
Claim 19
Dependent Claim
38 words
A capacitive inductive winding as set forth in claim 17, wherein the number of said parallel coils is related to the thickness of said dielectric means to establish substantially uniform current density to the input to said sections.
Claim 20
Dependent Claim
21 words
A capacitive inductive winding as set forth in claim 18, wherein each of said coils has substantially the same cross-sectional area.
Claim 21
Dependent Claim
51 words
A capacitive inductive winding as set forth in claim 16, including a first and a second load terminal, means connecting said first load terminal to said first end section of said first foil means, and means connecting said second load terminal to said first end section of said second foil means.
Claim 22
Dependent Claim
26 words
A capacitive inductive winding as set forth in claim 16, wherein said means producing a varying magnetic flux includes a primary winding and a magnetic core.
Claim 23
Dependent Claim
48 words
A capacitive inductive winding as set forth in claim 6, wherein the voltage between said first end sections is less than the voltage between said second end sections and the thickness of said dielectric means is less at said first end sections than at said second end sections.
Claim 24
Dependent Claim
84 words
A capacitive inductive winding, comprising in combination, first and second foil means each having first and second end sections, dielectric means separating said first and second foil means, graded capacitance means establishing a larger capacitance between said first end sections of said first and second foil means than at said second end sections of said foil means, and said graded capacitance means including a change in said dielectric means at said first end sections relative to said dielectric means at said second end sections.
Claim 25
Dependent Claim
84 words
A capacitive inductive winding, comprising in combination, first and second foil means each having first and second end sections, dielectric means separating said first and second foil means, graded capacitance means establishing a larger capacitance between said first end sections of said first and second foil means than at said second end sections of said foil means, and said graded capacitance means including a change in said dielectric means at said first end sections relative to said dielectric means at said second end sections.
Claim 26
Dependent Claim
29 words
A capacitive inductive winding as set forth in claim 23, wherein said changed dielectric means includes means increasing the ratio of dielectric constant to thickness of said dielectric means.
Claim 27
Dependent Claim
31 words
A capacitive inductive winding as set forth in claim 23, wherein said changed dielectric means includes a thinner dielectric means separating said first end sections than separating said second end sections.
Claim 28
Dependent Claim
25 words
A capacitive inductive winding as set forth in claim 23, wherein said changed dielectric means includes means increasing the dielectric constant of said dielectric means.
Claim 29
Dependent Claim
28 words
A capacitive inductive winding as set forth in claim 25, wherein the voltage between said first end sections is less than the voltage between said second end sections.
Claim 30
Dependent Claim
27 words
A capacitive inductive winding as set forth in claim 1, wherein said first end sections of said first and second foil means are adjacent to one another.
References Cited (Backward Citations)
US2521513A
Cited
US3078411A
Cited
US3210703A
Cited
US3209241A
Cited
US3210704A
Cited
US3210705A
Cited
US3210706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |